Transverter Sequencer

The xvtr also drives a Toyko HP amp and with these settings provides approximately 300 W from the amp. , Live Oak, FL 32060 USA Monday-Thursday 10am-6pm Eastern. This is buffered by a pad and an AML amplifier to yield an output level. Up for sale 432/28 MHz or 70 cm/10 m band transverter board. K5TRA LO - in Kuhne MKU23G2 3 T. See full list on vhfdesign. MSHV_WIN32_167_003. A WW2R designed band decoder/driver was built to provide automatic RF/Sequencer switching as the K3 as transverter bands are changed. On the PowerSDR main screen, select the "VHF+" band button. Sequencer is also switching the power for the MMICs in the transverter as well as the power for the coaxial relay at the output. This reduces the number of radios involved in daily operation and provides a quality receiver, with a panadapter on all bands. DCW2004B VHF Sequencer. With general coverage HF transceiver (19 - 29 MHz) one can easily cover 430 - 440 MHz band. 8750 MHz reference is generated by a Silicon Labs Si530 chip. (sum + lo=116000000). The circuitry uses a PIC micro-controller and MosFET switches, and has over voltage and current protection. However, it does benefit from more output power with an external PA. It also has a RF Vox switch meaning the device will sense RF on its input and TX or RX accordingly. Adjustable delay (seconds to ms). My goal is to cobble together enough hardware to run transverters on the following bands, 2M, 1. The PA circuit includes a sequencer, providing suitable delay in the TX key signal when activating first the relays of the external PA relay, then the antenna relay and RF module first stage of the transverter. Pagina dedicata agli schemi di accessori di varie marche. AD6IW, Goran Popovic, microwave site with 23cm synthesized transverter. Under the main transverter board resides the sequencer built around an AVR ATtiny44 microcontroller. RF sensing and PTT ports insuring high protection. Also on top is a K1EL Winkeyer used for CW. Sequencers that cater for older rigs are already available, so this sequencer has been designed specifically for use with a Yaesu FT-817, which has become a popular IF rig with microwave enthusiasts. This document describes a simple circuit based on a PICAXE that can be used to either:. Provides sequencing of your preamplifier and amplifier or transverter to avoid hot switching and to ensure that your remote preamp is off before the amplifier is on. The following images show the finished transverters covering 1. This means that most functions of the transceiver will also be the same on the converted. The transverter sequencer comes with a 20 mS delay for all settings. AEMME_FK-855_B15-144_user. pdf file) German. The complete transverter is shown here: The interior view shows (left to right) 28V 13A PSU, 23cm filter, DB6NT transverter, relay drive circuit (now replaced with sequencer), PE1RKI module amplifier, PE1RKI PA and fan. , Live Oak, FL 32060 USA Monday-Thursday 10am-6pm Eastern. K5TRA LO - in Kuhne MKU23G2 3 T. apel 1 rmg april 4, 2020. One of the good things about this upgraded version, ( it's an update of the very popular EME66 sequencer kit that has found its way into many a Transverter project worldwide over the years) is the single in line connector for all the sequenced outputs. During the contest I worked 15 stations with just 2 watts o/p from stations that before I could only dream to work with my old transverter! Good reports from everyone all round. The primary reason for using a sequencer is to protect the RF relay and the amplifiers hooked up to it. W1GHZ: Mini-Transverter W1GHZ: Sequencer for Transverters VK3XDK: 10GHz V2 3cm Transverter kit WA3IAC: A transverter for 10. Model SEQ-1 T/R Sequencer The Model SEQ-1 Transmit/Receive Sequencer is the first microprocessor controlled sequencer on the market. The sequencer input is wired to the existing RCA jack which is for transverter control by means of a ground to transmit PTT signal from the transceiver. Time delay: 25 ms after PTT LOW. I suspect there are not many people interested in applying these modifications to a Swan TV2. Transverter, driving rig, antenna will get you on the air low power(and 2 watts on 1296 can do a lot during good band conditions). The 2400 MHz transverter when first assembled. Sequentially keyed outputs from the TRS04VD accurately control the timing of all system transmit/receive changeovers eliminating coaxial relay and preamplifier failure. Even more complexity can arise with transverters. pdf file) English. High-gain LNA, high IP preamplifier for 23cm/13cm. The xvtr also drives a Toyko HP amp and with these settings provides approximately 300 W from the amp. Up for sale 432/28 MHz or 70 cm/10 m band transverter board. set the jumper inside to switch to TX via +12V on the coax. The first stage in this project will be to create a new sequencer, much like the 13cm version, so we can switch the transverter, a VLNA and a co-ax relay. 4 years ago. Below that is a Yaesu FT-857D for 432 MHz (the head is mounted remotely). Pagina dedicata agli schemi di accessori di varie marche. The output of the Si530 is multiplied x16 with a Hittite HMC445LP4E chip to yield an output level of +4 dBm. Hopefully, this design will spur more designers into adding reverse polarity protection. to the DEMI TIB-850, but switchable between two transverters) • TX/RX sequencers, bandpass filters, peak-hold circuits for Bird 43 wattmeters, automatic bandswitching interfaces for the FT-100. The HF-section of the DCW 2004 B offers a very low inseration loss and a high shielding. The objective is to add a very short time delay to avoid sending QRO RF power into the preamplifier or into an open, just closing relay contact, like "hot switching" which significantly. 2m the IF is 10m this was working when packed but because I cannot test throughly it’s sold for spares included power cable, attenuator and sequencer if I recall. Homebrewing transverters, projects and kits category is a curation of 44 web resources on , TenTec 1208CY 10. Dispatched with Royal Mail 2nd Class. In a careful hurry I checked the 4 m transverter if it is suitable for SSB traffic. The TRS04VD is a transmit/receive control circuit designed primarily for use with vhf/uhf transverter or transceiver, power amplifier and mast mounted preamplifiers. The TX ground option is a much better way to key the transverter which avoids relay chatter if you’re using SSB and is available on the tip of a 3,5mm audio jack. A transmit/receive sequencer PCB, assembled and tested, ready to put in a box of your choice. Introduction This document describes a versatile transverter sequencer, based on a PICAXE microcontroller. Apel • IF frequency = 144 MHz control the sequencer. DCW2004B VHF Sequencer. As my kids say "YMMV!" Your Mileage May Vary! STEP 4: BEGIN TRANSVERTER OPERATION Start PowerSDR normally an configure the XVTR and ANTENNA forms as described previously. , Live Oak, FL 32060 USA Monday-Thursday 10am-6pm Eastern. This is buffered by a pad and an AML amplifier to yield an output level. to the DEMI TIB-850, but switchable between two transverters) • TX/RX sequencers, bandpass filters, peak-hold circuits for Bird 43 wattmeters, automatic bandswitching interfaces for the FT-100. The double relay board is a simple Tx/Rx sequencer but with no external Rx preamp and no high power PA it is not really required. During the contest I worked 15 stations with just 2 watts o/p from stations that before I could only dream to work with my old transverter! Good reports from everyone all round. Sequencers don't have to only apply/remove DC power in a set sequence. In RX the Eyal Gal's amplifier is disabled and his gain is set to the minimum. 7 Ghz Transverters. : +49 (0) 9293 - 800 640 Fax: +49 (0) 9293 - 800 6420. Along with that I purchased the M2 eggbeater antenna kit (both 144 and 440) and a pair of preamps (AR2 MSP144VDG-160 with choke and MSP432VDG-160 with choke). The complete transverter is shown here: The interior view shows (left to right) 28V 13A PSU, 23cm filter, DB6NT transverter, relay drive circuit (now replaced with sequencer), PE1RKI module amplifier, PE1RKI PA and fan. The HF-section of the DCW 2004 B offers a very low inseration loss and a high shielding. The sequencer allows the preamplifier to be switched out of line and then provides 3 additional sequence steps to key your linear amplifier, transverter, or radio. Transverter, driving rig, antenna will get you on the air low power(and 2 watts on 1296 can do a lot during good band conditions). 4 years ago. It provides one heartbeat and four visual outputs for confirmation of operation, plus the ability to program a different time delay value for the outputs sequences. The xvtr also drives a Toyko HP amp and with these settings provides approximately 300 W from the amp. On the PowerSDR main screen, select the "VHF+" band button. Provides sequencing of your preamplifier and amplifier or transverter to avoid hot switching and to ensure that your remote preamp is off before the amplifier is on. My goal is to cobble together enough hardware to run transverters on the following bands, 2M, 1. The TX ground option is a much better way to key the transverter which avoids relay chatter if you’re using SSB and is available on the tip of a 3,5mm audio jack. (sum + lo=116000000). One of the good things about this upgraded version, ( it's an update of the very popular EME66 sequencer kit that has found its way into many a Transverter project worldwide over the years) is the single in line connector for all the sequenced outputs. There is an additional descriptionof a sequencer in the 300w 23cm amplifier article listed on the left. A good friend of mine tried out his 15 watt PA 3. This makes it much easier and neater to wire the board into your project. One half of the extrusion contains the LO source board, mounted face down, while the other half contains the transverter board, also mounted face down, and an IF sequencer interface board. The RF sensing circuit, between C2 and Q1, detects any transmit power from the IF transceiver and begins the switching sequence. Below that is the 903 MHz amplifier assembly, including the coax attenuator. PTT, active: LOW. See full list on zl2bkc. I use the Elecraft K3 as an IF radio with Transverter. pdf file) German. If the coaxial relay or RF electronic switch is not available we can use two separate antennas for the RX and TX. When I first started my EME tests I was running the TS2000 barefoot and without an LNA so there was no need to worry about using a sequencer. This sequencer is suitable for a lineup of HF transceiver - VHF/UHF transverter - PA, but it can be adapted for other systems too. High-gain LNA, high IP preamplifier for 23cm/13cm. These oscillators can be used as a frequency reference for a microwave Phase Locked Oscillator (PLO). Rather than cart my rover Yagi up to the shack, I built a three-element cheap Yagi for testing. 6500, transverter and AR2 Preamp. There are three potential sources to activate the sequencer: RF, PTT hi, and PTT lo. Hopefully, this design will spur more designers into adding reverse polarity protection. Apel • IF frequency = 144 MHz control the sequencer. The problem a sequencer attempts to address is that most transceivers transmit power immediately, before anything else can switch from TX to RX. 7 GHz Power Amplifier 8 W (*. Microwave Modules MMT 144/28 Transverter. filters centred on about 2. Showing the single result Transverters Upconverter 13cm $ 26. Transverters are most commonly used in amateur radio to convert radio transceivers designed for use on the HF or VHF bands to operate on even higher frequency (microwave) bands. Hot switching prevention is commonly used on VHF/UHF/SHF transverters, I built the 4 output sequencer in the (2001)Handbook. The PA circuit includes a sequencer, providing suitable delay in the TX key signal when activating first the relays of the external PA relay, then the antenna relay and RF module first stage of the transverter. W1GHZ: Mini-Transverter W1GHZ: Sequencer for Transverters VK3XDK: 10GHz V2 3cm Transverter kit WA3IAC: A transverter for 10. 4 Ghz Antennas with Transverters and Feed Horns. To Order Call: 386-364-5529 19519 78th Ter. / 2,0 kW PEP. The sequencer suits Transverters with either a single, or dual I/F connections. Here's the design: and in reality, this looks like this once built on stripboard: I've already got a G4DDK VLNA for 23cm assembled here, and coax relays aplenty. Since i use all these devices in a OR situation and not AND. This line goes to logical low level when the PTT is pressed. One half of the extrusion contains the LO source board, mounted face down, while the other half contains the transverter board, also mounted face down, and an IF sequencer interface board. Dual Transverter IF switch and Sequencers for Elecraft K3 / K3s. 73 de Johannes. In this example, no RF is going to get up the transmission line unless the sequencer keys the transverter, which it will not do until it has the LNA powered down and safely bypassed. Provides sequencing of your preamplifier and amplifier or transverter to avoid hot switching and to ensure that your remote preamp is off before the amplifier is on. During the contest I worked 15 stations with just 2 watts o/p from stations that before I could only dream to work with my old transverter! Good reports from everyone all round. 4 (Radio Setup, Xvtr Tab), provides approximately 25 W from the xvtr. It is similar to our TRS in theory but without the relays. We designed and built this transverter board with a purpose to bring an affordable high performance product on the ham radio market. The sequencer input is wired to the existing RCA jack which is for transverter control by means of a ground to transmit PTT signal from the transceiver. 1296 MHz 23cm transverter 1296 MHz Transvertor. TX when the PTT is grounded. It also has a RF Vox switch meaning the device will sense RF on its input and TX or RX accordingly. , Live Oak, FL 32060 USA Monday-Thursday 10am-6pm Eastern. The sequencer allows the preamplifier to be switched out of line and then provides 3 additional sequence steps to key your linear amplifier, transverter, or radio. Delay time is user defined. The complete transverter is shown here: The interior view shows (left to right) 28V 13A PSU, 23cm filter, DB6NT transverter, relay drive circuit (now replaced with sequencer), PE1RKI module amplifier, PE1RKI PA and fan. Sequentially keyed outputs from the TRS04VD accurately control the timing of all system transmit/receive changeovers eliminating coaxial relay and preamplifier failure. The primary reason for using a sequencer is to protect the RF relay and the amplifiers hooked up to it. Since i use all these devices in a OR situation and not AND. To configure read carefully instructions in tab widget "Transverter Local Oscillator Or RIG Offset". 4Ghz Transverter Top View. Monday, 26 December 2016. k5tra sequencer schematic t. in this connector. Schematic is here. Also on top is a K1EL Winkeyer used for CW. Its intentions are to convert a transceiver to a different set of frequencies or band. Sequencing Secrets. that something obvious seems to be missing - an external T/R relay control. 0dBm to +20dBm. HERE’S HOW IT WORKS Receive (Unkeyed) During receive, with power on (controlled by SW1), the sequencer is in the unkeyed state. One of the good things about this upgraded version, ( it’s an update of the very popular EME66 sequencer kit that has found its way into many a Transverter project worldwide over the years) is the single in line connector for all the sequenced outputs. For stand-alone operation with transverter, there is built in preamplifier (only for main RX and antenna connected to ANT 432 MHz) with HMC-374. Sequencer output, open collector NPN transistor 30V/0. Sequencers don't have to only apply/remove DC power in a set sequence. 6 m / 1,0 kW CW. Since my old sequencer has gone bad, I kept looking for a new one that should definitely have the function „TX inhibit“. This was exactly what I needed to create a single control unit to switch IF lines, provide an independent sequencer to each transverter chain and to ensure that no RF was generated until all events in each sequence was completed all at the press of the band selector button on the K3 after some thought I came up with the following station. This makes it much easier and neater to wire the board into your project. Transverters Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low. The Kuhne transverters have a +12v TX out @ about 500mA which can be used to engage TX relays, but other systems may require the use of a sequencer. A typical setup is shown to the right. 5 mm audio jack. 1296 MHz 23cm transverter 1296 MHz Transvertor. The complete transverter is shown here: The interior view shows (left to right) 28V 13A PSU, 23cm filter, DB6NT transverter, relay drive circuit (now replaced with sequencer), PE1RKI module amplifier, PE1RKI PA and fan. 4GHz transverter in a contest and blew his receiver "front end" almost immediately he was not using a sequencer! All supplies and the sequencer are protected by suitably rated in-line fuses(see the block diagram). Microwave Modules MMT 144/28 Transverter. The Minikits EME166 Sequencer The Minikits sequencer can be used to control transverters with various components like antenna relays, power amplifier, or receive pre-amplifiers. Under the main transverter board resides the sequencer built around an AVR ATtiny44 microcontroller. pdf AEMME_FK-855_FK-855-Wide_review_IT_2001. (sum + lo=116000000). 4Ghz Transverter Top View. The sequencer allows the preamplifier to be switched out of line and then provides 3 additional sequence steps to key your linear amplifier, transverter, or radio. Dual Transverter IF switch and Sequencers for Elecraft K3 / K3s I have a medical condition called Muscular Dystrophy which results in the muscles of body slowly atrophying over time which has resulted in my hand muscles weakening to the point I struggle connecting and disconnecting any type of RF connector; this poses a problem in that I use. The DCW 2004 B VHF Sequence-Controller provides precise sequential controlled switching of a VHF power amplifier, rig, transverter and LNA/pre-amplifier and also provides a remote feeding voltage for the Super-Amp range of pre-amplifiers via the coaxial cable. You could use the sequencer to separate the transmit actions of the transverter from the transceiver, once again to protect the the transverter receive circuitry from accidentally receiving power from the transceiver. The board of sequencer is good to place somewhere in PA close to input PTT connector, where is not presented high level of RF field. PTT hi is the input for transceivers that supply a positive voltage on transmit. Transverter Kits The Mini-Kits Microwave Transverter Kits are ideal for getting on the higher microwave bands. Items purchased included two bandpass. Model SEQ-1 T/R Sequencer The Model SEQ-1 Transmit/Receive Sequencer is the first microprocessor controlled sequencer on the market. Introduction This document describes a versatile transverter sequencer, based on a PICAXE microcontroller. Delay time is user defined. 0dBm to +20dBm. Description. This sequencer will handle up to 4 events; one output is able to sink up to 100v at several amps, and the remaining 3 up to 40v at about 500 ma each. 6 & 24 VDC Input 144 MHz In/Out 10 MHz Ref. The problem a sequencer attempts to address is that most transceivers transmit power immediately, before anything else can switch from TX to RX. The transverter sequencer comes with a 20 mS delay for all settings. pdf file) German. When I first started my EME tests I was running the TS2000 barefoot and without an LNA so there was no need to worry about using a sequencer. OH2GAQ 5760 MHz Transverter Control and Sequencer v06 OH2GAQ 12. It allows key-controlled changeover or direct PTT without damage to the preamp, the coax relays contacts or the PA. Modules on the rear panel are the 10 MHz reference oscillator, phase locked oscillator on 2256 MHz, splitter/attenuator board. (too old to reply) Clay W7CE. An enable signal to the sequencer will produce sequential output commands to a RX relay, a TR relay, an amplifier and a transverter automatically, plus a polarity change lockout. Oh and some form of keying cable to match your radios, TX out pin it is when you add amplifiers and preamps where you need relays to switch and protect things, and a sequencer to make sure those relays switch when thy are supposed to. They will be indicated as such. This document describes a simple circuit based on a PICAXE that can be used to either:. 00 Select options. Below that is the SSB Electronic LT-33S 903 MHz transverter. AEMME_FK-855_B15-144_user. 4GHz transverter in a contest and blew his receiver "front end" almost immediately he was not using a sequencer! All supplies and the sequencer are protected by suitably rated in-line fuses(see the block diagram). I have recently added a Demi/Q5 L144-28 transverter with the same configuration to my Flex-6600. Since i use all these devices in a OR situation and not AND. Elecraft provides a TX INHIBIT line to Pin-7 of the ACC jack. The circuitry uses a PIC micro-controller and MosFET switches, and has over voltage and current protection. Sequencer - Aerial-Parts of Colchester. If the coaxial relay or RF electronic switch is not available we can use two separate antennas for the RX and TX. To Order Call: 386-364-5529 19519 78th Ter. After the quite good experience with the Icom IC-7300 during WPX-CW I thought it might be a nice idea to also try it out with a transverter on 2 m in the big VHF contest in two weeks. The transverter sequencer comes with a 20 mS delay for all settings. Many low power amps can be. 368 MHz VE3HHT: White Box Transverter DEMI: Interfacing DEMI Transverters KUHNE: PTT Control of DB6NT Transverters. This reduces the number of radios involved in daily operation and provides a quality receiver, with a panadapter on all bands. DCW2004B VHF Sequencer. When I first started my EME tests I was running the TS2000 barefoot and without an LNA so there was no need to worry about using a sequencer. There is an additional descriptionof a sequencer in the 300w 23cm amplifier article listed on the left. This will vary by transverter, external amplifier, pre-amp, and sequencer configuration. Oh and some form of keying cable to match your radios, TX out pin it is when you add amplifiers and preamps where you need relays to switch and protect things, and a sequencer to make sure those relays switch when thy are supposed to. Slide the sequencer board over the screws and retain it in place with two more 4/40 nuts. Sequencing Secrets. 368 MHz VE3HHT: White Box Transverter DEMI: Interfacing DEMI Transverters KUHNE: PTT Control of DB6NT Transverters. However, it does benefit from more output power with an external PA. Labels: 13cm, 13cm Wimo, G4DDK VLNA, RF sequencer, SG Lab 13cm Transverter. Covers 6m-70cm. (8 MHz at -3dB). In a careful hurry I checked the 4 m transverter if it is suitable for SSB traffic. If the coaxial relay or RF electronic switch is not available we can use two separate antennas for the RX and TX. This sequencer will handle up to 4 events; one output is able to sink up to 100v at several amps, and the remaining 3 up to 40v at about 500 ma each. The 2400 MHz transverter when first assembled. In fact, in the general case, a sequencer has a series of switch contacts that are enabled in the proper order and disabled in the opposite order. The transverter sequencer comes with a 20 mS delay for all settings. There are extra pins in the connector and may be specified by the user for various IN/OUT configurations. You have to select either INHIB = HI or INHIB = LO to turn it on. Transverter MICROSTRIP 5,76 GHz – 435 MHz V. 1296 MHz 23cm transverter 1296 MHz Transvertor. 10-GHZ STATUS QRV (Rover Only) STATION CONFIGURATION: (Portable) KX3 TRANSVERTER: Elecraft KX3-2M (3w) DEM Sequencer TRANSVERTER: DEMI 10368/144 PREAMP: DEMI ULNA-3, NF=1. SSPA - 2xTGA4915CP - 8W RF out each. 8750 MHz reference is generated by a Silicon Labs Si530 chip. The transverter has a noise figure of 1dB. They will be indicated as such. Once a transition RX-to-TX is debounced and detected, the main loop switches in sequence the IF input attenuator (not needed in RX), the transverter PTT and enables RF. Modules on the rear panel are the 10 MHz reference oscillator, phase locked oscillator on 2256 MHz, splitter/attenuator board. It also makes a very good IF rig for a microwave transverter. : +49 (0) 9293 - 800 640 Fax: +49 (0) 9293 - 800 6420. Labels: 13cm, 13cm Wimo, G4DDK VLNA, RF sequencer, SG Lab 13cm Transverter. Flex 6600 with TX/RX XVTR Port A and B and RX Port A and B. The Icom powered the preamps for me and removed power when I transmitted. The following images show the finished transverters covering 1. On the PowerSDR main screen, select the "VHF+" band button. 2 ppm max PLL SSB PN @ 10 kHz Offset. Ring on the jack plug gives you 25ms delay. RF sensing and PTT ports insuring high protection. The sequencer allows the preamplifier to be switched out of line and then provides 3 additional sequence steps to key your linear amplifier, transverter, or radio. But 28MHz is the IF of choice for VHF and UHF transverters. HERE’S HOW IT WORKS Receive (Unkeyed) During receive, with power on (controlled by SW1), the sequencer is in the unkeyed state. The sequencer allows the preamplifier to be switched out of line and then provides 3 additional sequence steps to key your linear amplifier, transverter, or radio. An enable signal to the sequencer will produce sequential output commands to a RX relay, a TR relay, an amplifier and a transverter automatically, plus a polarity change lockout. Along with that I purchased the M2 eggbeater antenna kit (both 144 and 440) and a pair of preamps (AR2 MSP144VDG-160 with choke and MSP432VDG-160 with choke). 25M, 70cm, 33cm (902MHz), 23cm (1296MHz), 2304MHz (13cm) and 9cm (3456MHz). You can adjust the delay from 10 mS to 200 mS. This sequencer will handle up to 4 events; one output is able to sink up to 100v at several amps, and the remaining 3 up to 40v at about 500 ma each. k5tra chassis & boards before wiring t. Portable antenna: Andrew Prime focus 1,8 m portable setup. Modules on the rear panel are the 10 MHz reference oscillator, phase locked oscillator on 2256 MHz, splitter/attenuator board. Monday, 26 December 2016. in this connector. Below that is the SSB Electronic LT-33S 903 MHz transverter. k5tra sequencer schematic t. This means that most functions of the transceiver will also be the same on the converted. 50 MHz Transverter, HRIS2, 70cm Mini-Transverter Project. set the jumper inside to switch to TX via +12V on the coax. If the input to the transverter is split (separate RX and TX lines, then you can use the transverter to hold off RF with our sequencer a s long as needed for the downstream chain of relays to settle. Covers 6m-70cm. Do you need a separate sequencer for this, or is it ready to go with just connecting to the radio and power? I was looking at a Kuhne transverter, but this may be the way to go. Customer Specified Options: All other customer specified options will be listed and identified. A sequencer is the “brains” of a weak-signal station. Most previous attempts tried to do it all in hardware. Well, I've been thinking some more about the 13cm project I have on the go, more importantly how I am going to arrange all the bits together. There is a very simple one. This changed as soon as I installed the LNA. DCW 2004 B 6m, 2m, 70cm. You can adjust the delay from 10 mS to 200 mS. (sum + lo=116000000). uW PLL synthesizers for transverters. k5tra chassis & boards before wiring t. The IF frequency is 50 MHz for an RF frequency of 10,368. To configure read carefully instructions in tab widget "Transverter Local Oscillator Or RIG Offset". Along with that I purchased the M2 eggbeater antenna kit (both 144 and 440) and a pair of preamps (AR2 MSP144VDG-160 with choke and MSP432VDG-160 with choke). In Tx/ 24 VDC 12 VDC Tx OK/ PLL OK/ 5. I suspect there are not many people interested in applying these modifications to a Swan TV2. I’ll put those to use when I’m able to add a power amplifier. The TRS04VD is a transmit/receive control circuit designed primarily for use with vhf/uhf transverter or transceiver, power amplifier and mast mounted preamplifiers. A "switchable" IF transverter interface for the TS-850S/AT (sim. 00 Select options. The HF-section of the DCW 2004 B offers a very low inseration loss and a high shielding. Since you choose to. I also tested the receiving capabilities with a nearby beacon. The Minikits EME166 Sequencer The Minikits sequencer can be used to control transverters with various components like antenna relays, power amplifier, or receive pre-amplifiers. There are extra pins in the connector and may be specified by the user for various IN/OUT configurations. Provides sequencing of your preamplifier and amplifier or transverter to avoid hot switching and to ensure that your remote preamp is off before the amplifier is on. This was exactly what I needed to create a single control unit to switch IF lines, provide an independent sequencer to each transverter chain and to ensure that no RF was generated until all events in each sequence was completed all at the press of the band selector button on the K3 after some thought I came up with the following station. apel 1 rmg april 4, 2020. Posted on June 24, 2018 by dh8bqa. The PTT circuit uses two MJD127 devices on the transverter unit for the RX/TX switching. It is all solid state switching. 10-GHZ STATUS QRV (Rover Only) STATION CONFIGURATION: (Portable) KX3 TRANSVERTER: Elecraft KX3-2M (3w) DEM Sequencer TRANSVERTER: DEMI 10368/144 PREAMP: DEMI ULNA-3, NF=1. RF sensing and PTT ports insuring high protection. At this stage, the transverter concept planning all seems to be coming together. After the quite good experience with the Icom IC-7300 during WPX-CW I thought it might be a nice idea to also try it out with a transverter on 2 m in the big VHF contest in two weeks. Portable antenna: Andrew Prime focus 1,8 m portable setup. There is a very simple one. During the contest I worked 15 stations with just 2 watts o/p from stations that before I could only dream to work with my old transverter! Good reports from everyone all round. I have a medical condition called Muscular Dystrophy which results in the muscles of body slowly atrophying over time which has resulted in my hand muscles weakening to the point I struggle connecting and disconnecting any type of RF connector; this poses a problem in that I use. Adjustable delay (seconds to ms). You can adjust the delay from 10 mS to 200 mS. This is a perfect complement to a transceiver with a low level transverter port. This is Part 1 of a four-part series on my homebrew Microwave Transverter System:𝗧𝗵𝗶𝘀 𝘃𝗶𝗱𝗲𝗼 𝗱𝗲𝘀𝗰𝗿𝗶𝗯𝗲𝘀. The DCW 2004 B VHF Sequence-Controller provides precise sequential controlled switching of a VHF power amplifier, rig, transverter and LNA/pre-amplifier and also provides a remote feeding voltage for the Super-Amp range of pre-amplifiers via the coaxial cable. 13 The two RF boards are mounted face down so that the active circuitry is sandwiched between the PC board ground plane and the grounded wall of the case. Technical Data*. Please refer to the Options Tab for the descriptions of the various products available. Some time ago I purchased a Icom-9100 as I was wanting to do some SAT work. This line goes to logical low level when the PTT is pressed. 2 ppm max PLL SSB PN @ 10 kHz Offset. The double relay board is a simple Tx/Rx sequencer but with no external Rx preamp and no high power PA it is not really required. The preamlifier and a linear amplifier (if used) can be switched on or off as required. A good friend of mine tried out his 15 watt PA 3. I believe it is a simple mod to split or combine IF on the Transverters if needed. PTT, active: LOW. Typically, one would have the high-capacity port switching the antenna relays, and the others handling amplifier, transverter, or radio switching. Up for sale 432/28 MHz or 70 cm/10 m band transverter board. In future postings I will describe what components were used. This is where a sequencer can help if you can get it to lower the output of the FT950 for 50mS or so. The objective is to add a very short time delay to avoid sending QRO RF power into the preamplifier or into an open, just closing relay contact, like "hot switching" which significantly. It provides one heartbeat and four visual outputs for confirmation of operation, plus the ability to program a different time delay value for the outputs sequences. K5TRA LO - in Kuhne MKU23G2 3 T. Each Transverter has a single cable that plugs in the XVTR TX/RX port. The first stage in this project will be to create a new sequencer, much like the 13cm version, so we can switch the transverter, a VLNA and a co-ax relay. In Options "Interface Control" tab widget "Transverter Local Oscillator Or RIG Offset". K5TRA Gain & Power Budget T. Also on top is a K1EL Winkeyer used for CW. The S2 Sequencers’ primary application is for VHF/UHF transverter, amplifier and antenna switching. Description. It also makes a very good IF rig for a microwave transverter. Resources listed under Transverter category belongs to Technical Reference main collection, and get reviewed and rated by amateur radio operators. A sequencer is the “brains” of a weak-signal station. The first stage in this project will be to create a new sequencer, much like the 13cm version, so we can switch the transverter, a VLNA and a co-ax relay. 4Ghz Transverter Top View. I use the Elecraft K3 as an IF radio with Transverter. Keying Option with / without Sequencer: PTT-L (to ground) or PTT-H (Positive Voltage) User Installed Options: IF Drive Sense, Cooling Fan, Sequencer Configuration Overview: The VHF/UHF transverter line is designed to interface and operate with most High Frequency transceivers that are available on the market today. TE Systems 0552G 350 watt linear amp for 50 MHz TE Systems 1452G 350 watt linear amp for 144 MHz Teletec 180 watt linear amp for 222 MHz ; Teletec 150 watt linear amp for 432 MHz ; Converted solid state amp (28VDC) 250 watts for 902 MHz. 0 - DB6NT input waveguide WR42 design 1,6 dB N/F. DESCRIPTION: The complete Sequencer is built on a single 55 x 90mm size PC board & should take around 4 hours to construct. In Tx/ 24 VDC 12 VDC Tx OK/ PLL OK/ 5. SDR / Flex sequencer. Preamp power is controlled by SW2 and passes directly to J1, pin 5. Slide the sequencer board over the screws and retain it in place with two more 4/40 nuts. Typically, one would have the high-capacity port switching the antenna relays, and the others handling amplifier, transverter, or radio switching. You can adjust the delay from 10 mS to 200 mS. The sequencer is located in the 10Ghz control box and connects the the RF/Sequencer Controller by a multi conductor cable. I've used this sequencer for about. A "real-world" 7 dB Pi-attenuator consists of a 2W 120 ohm resistor across, 47 ohm straight, 120 ohm across. Up for sale 432/28 MHz or 70 cm/10 m band transverter board. This document describes a simple circuit based on a PICAXE that can be used to either:. In future postings I will describe what components were used. The double relay board is a simple Tx/Rx sequencer but with no external Rx preamp and no high power PA it is not really required. Multiples sequencer; PA stacked 2m-70cm-23cm; 23cm Transverter; dummy load 50 ohms; 600w-23cm-ldmos-amplifier-part-II; 1,3-ghz/2,4-ghz-rf-signal-source; bye-bye-DR Congo; ugly balun cdrom box; 160-m-top-band in 9Q; labels-of-wine-in-morse-code; 1kw-70cm-ldmos-amplifier; 13cm-2320mhz-transverter; 1kw 2m LDMOS amplifier; Customized Bird Wattmeter. Schematic is here. There is an additional descriptionof a sequencer in the 300w 23cm amplifier article listed on the left. Both sequencer and preamp power are current protected by a 1A fuse at F1. I finally decided to break down and. Transverter can be DC powered by coaxial cable. a collection of some electronics hobby projects by kc6qhp that includes microwave transverters for several radio frequencies such as 79 ghz 47 ghz 24 ghz and 10 ghz all projects includes detailed pictures of components like voltage regulator boards rf decks sequencer and protector board and receiver details. Pagina dedicata agli schemi di accessori di varie marche. The sequencer code uses a level change interrupt (on INT0) to monitor the PTT line output on the CAT port ("TX GND"). Homebrewing transverters, projects and kits category is a curation of 44 web resources on , TenTec 1208CY 10. 0 - DB6NT input waveguide WR42 design 1,6 dB N/F. A "switchable" IF transverter interface for the TS-850S/AT (sim. 7 GHz Power Amplifier 8 W (*. I’ll put those to use when I’m able to add a power amplifier. Even though it had RF-sensed switching and was supposed to be good for more than the power I was running, I. Features Interface to single coil or 2 coil relays Latching or Failsafe relays 4 sequencer events (PA Supply, RX, TX, TX Drive) MOSFET switch for upto 5 Amps PA Supply LCD Front Panel interafce Hardwired PTT or via IF Interface 8V or 9V supply for transverter 28V DC DC converter option for 28V relays or…. DCW2004B VHF Sequencer. This has worked perfect for my. 50 MHz Transverter, HRIS2, 70cm Mini-Transverter Project. Protective Timing to Transverters 5 Panel Connectors and Controls 5 Connections 6 Operation 10 Transmit Sequence 10 Receive Sequence 10 VOX 11 Time Delay Settings 11 CW Sidetone Audio Levels 12 Sequencer Timing Diagram (Figure 4) 13 Appendix A - Typical Connection Configurations Icom 756 Pro III 14 Kenwood TS-2000 15. I have a medical condition called Muscular Dystrophy which results in the muscles of body slowly atrophying over time which has resulted in my hand muscles weakening to the point I struggle connecting and disconnecting any type of RF connector; this poses a problem in that I use. This is a perfect complement to a transceiver with a low level transverter port. TE Systems 0552G 350 watt linear amp for 50 MHz TE Systems 1452G 350 watt linear amp for 144 MHz Teletec 180 watt linear amp for 222 MHz ; Teletec 150 watt linear amp for 432 MHz ; Converted solid state amp (28VDC) 250 watts for 902 MHz. Some time ago I purchased a Icom-9100 as I was wanting to do some SAT work. pdf AEMME_FK-855_FK-855-Wide_review_IT_2001. The sequencer suits Transverters with either a single, or dual I/F connections. I did not fully realize that the transverter contains a sequencer for activating a power amp and receiving preamp. pdf file) English. On top of the rack is the 1296 MHz transverter/amp/TR switch/sequencer/IF switch. I finally decided to break down and. A relay sequencer is used in a radio transverter and is use to activate particular stages in order after short delay. Portable antenna: Andrew Prime focus 1,8 m portable setup. To accommodate all types of radios, the DCW2004B/HP sequencer can be keyed via a ground on Tx or +VDC on Tx. org I'm still trying to design a fool-proof sequencer for transverters and amplifiers, but there are still bigger fools. Transverter Kits The Mini-Kits Microwave Transverter Kits are ideal for getting on the higher microwave bands. In this case the external PTT input of the transverter may be connected directly to the transverter’s PTT input (see component placement document) near C100 (PTT-H) or C102 (PTT-L) bypassing the sequencer. The following images show the finished transverters covering 1. This changed as soon as I installed the LNA. For stand-alone operation with transverter, there is built in preamplifier (only for main RX and antenna connected to ANT 432 MHz) with HMC-374. Adjustable delay (seconds to ms). This makes it much easier and neater to wire the board into your project. It is similar to our TRS in theory but without the relays. HF-Vox - is active any time (to protect the transverter of TXing into the RX part ) But there is a manual that can be downloaded from Hrisijans web site where all the above mentioned points are explained. The problem a sequencer attempts to address is that most transceivers transmit power immediately, before anything else can switch from TX to RX. The Phase Dock grids made it handy to assemble the parts. The TX ground option is a much better way to key the transverter which avoids relay chatter if you’re using SSB and is available on the tip of a 3,5mm audio jack. pdf file) English. AD6IW, Goran Popovic, microwave site with 23cm synthesized transverter. The first is to turn on parts of the transverter in order with small delay when the radio is TX and then turn them off in the reverse order when RX. Items purchased included two bandpass. Transverter, driving rig, antenna will get you on the air low power(and 2 watts on 1296 can do a lot during good band conditions). 13 The two RF boards are mounted face down so that the active circuitry is sandwiched between the PC board ground plane and the grounded wall of the case. On the PowerSDR main screen, select the "VHF+" band button. At this stage, the transverter concept planning all seems to be coming together. K5TRA Gain & Power Budget T. There are three potential sources to activate the sequencer: RF, PTT hi, and PTT lo. The 4 Event Sequencer for transverters and power amplifiers (PA) is designed by US4ICI. a collection of some electronics hobby projects by kc6qhp that includes microwave transverters for several radio frequencies such as 79 ghz 47 ghz 24 ghz and 10 ghz all projects includes detailed pictures of components like voltage regulator boards rf decks sequencer and protector board and receiver details. We designed and built this transverter board with a purpose to bring an affordable high performance product on the ham radio market. 5w Completed April 2017 HORN ANT-1: MA-Com, Gain=17 dBi HORN ANT-2: Gain=22 dBi ANTENNA: DSS 18-inch offset-feed dish, Gain= 32. switch the transverter and rig from rx to tx at step 3, the sequencer will key the rig, but the rf relays will be safely switched and the preamp & power amp will be properly protected. Showing the single result Transverters Upconverter 13cm $ 26. pdf file) German. It also makes a very good IF rig for a microwave transverter. A transverter interface for the ‘7300. This 4 event sequencer has four outputs which able to sink up to 100 v at 7 amps and another output up to 30 v at about 10 amps for […]. 1296 MHz 23cm transverter 1296 MHz Transvertor. , Live Oak, FL 32060 USA Monday-Thursday 10am-6pm Eastern. Condition is "For parts or not working". I had also purchased from. Schematic is here. There is an additional descriptionof a sequencer in the 300w 23cm amplifier article listed on the left. Since i use all these devices in a OR situation and not AND. They will be indicated as such. Posted on June 24, 2018 by dh8bqa. Transmissible power. RX input band pass filter in Menina is 10 MHz (-3dB) wide. Hello the NET: A sequencer is needed to properly transition the PA, IPA, transverter, transceiver, and preamplifier when going from RX to TX and TX to RX. A good friend of mine tried out his 15 watt PA 3. Sequencing Secrets. Also on top is a K1EL Winkeyer used for CW. Below that is the SSB Electronic LT-33S 903 MHz transverter. One of the good things about this upgraded version, ( it’s an update of the very popular EME66 sequencer kit that has found its way into many a Transverter project worldwide over the years) is the single in line connector for all the sequenced outputs. Adjustable delay (seconds to ms). K5TRA LO - in Kuhne MKU23G2 3 T. Typical sequence is: [RX to TX] (Input) Key PTT {output 1} RX Preamp relays switch {output 2} TX amp relays switch {output 3} Exciter key [TX to RX] (input) Unkey PTT {output 3} Exciter unkey {output 2} Tx amp relays switch. A transverter interface for the ‘7300. Shall be well packed please study photographs as they are part of the description. (too old to reply) Clay W7CE. Well, I've been thinking some more about the 13cm project I have on the go, more importantly how I am going to arrange all the bits together. 7 GHz Transverter MKU 57 G from 1991 DUBUS (*. Even though it had RF-sensed switching and was supposed to be good for more than the power I was running, I. If the coaxial relay or RF electronic switch is not available we can use two separate antennas for the RX and TX. 7 GHz Power Amplifier 8 W (*. Since my old sequencer has gone bad, I kept looking for a new one that should definitely have the function „TX inhibit“. Resources listed under Transverter category belongs to Technical Reference main collection, and get reviewed and rated by amateur radio operators. This is where a sequencer can help if you can get it to lower the output of the FT950 for 50mS or so. 0 - DB6NT input waveguide WR42 design 1,6 dB N/F. KUHNE ELECTRONIC GMBH Scheibenacker 3 95180 Berg Germany Tel. Hot switching prevention is commonly used on VHF/UHF/SHF transverters, I built the 4 output sequencer in the (2001)Handbook. PTT hi is the input for transceivers that supply a positive voltage on transmit. transverter. It is similar to our TRS in theory but without the relays. Pagina dedicata agli schemi di accessori di varie marche. Once a transition RX-to-TX is debounced and detected, the main loop switches in sequence the IF input attenuator (not needed in RX), the transverter PTT and enables RF. A relay sequencer is used in a radio transverter and is use to activate particular stages in order after short delay. The objective was to use them in the 3cm HAM band, 10368 MHz. pdf AEMME_FK-855_FK-855-Wide_review_IT_2001. Sequencers that cater for older rigs are already available, so this sequencer has been designed specifically for use with a Yaesu FT-817, which has become a popular IF rig with microwave enthusiasts. On 222, which is done with a transverter instead of directly out the back of my FT-847, I went to the effort to "hard key. Elecraft provides a TX INHIBIT line to Pin-7 of the ACC jack. One half of the extrusion contains the LO source board, mounted face down, while the other half contains the transverter board, also mounted face down, and an IF sequencer interface board. 5w Completed April 2017 HORN ANT-1: MA-Com, Gain=17 dBi HORN ANT-2: Gain=22 dBi ANTENNA: DSS 18-inch offset-feed dish, Gain= 32. The sequencer has been made with a simple circuit (IK5ZWU) and adapted to the Eyal Gal. 1296 mhz transverter design and construction details t. Typically, one would have the high-capacity port switching the antenna relays, and the others handling amplifier, transverter, or radio switching. Many low power amps can be. It may work for you, but I'd opt for external. One of the good things about this upgraded version, ( it's an update of the very popular EME66 sequencer kit that has found its way into many a Transverter project worldwide over the years) is the single in line connector for all the sequenced outputs. : +49 (0) 9293 - 800 640 Fax: +49 (0) 9293 - 800 6420. TX filtering is a bit narrower. The 24 GHz sides of converters are already prepared for the WR-42 waveguide flange connection and the good practice on this bands is to avoid unnecessary waveguide/coax transitions, SMA connectors, semi-rigid cables and all other lousy parts. Multiples sequencer; PA stacked 2m-70cm-23cm; 23cm Transverter; dummy load 50 ohms; 600w-23cm-ldmos-amplifier-part-II; 1,3-ghz/2,4-ghz-rf-signal-source; bye-bye-DR Congo; ugly balun cdrom box; 160-m-top-band in 9Q; labels-of-wine-in-morse-code; 1kw-70cm-ldmos-amplifier; 13cm-2320mhz-transverter; 1kw 2m LDMOS amplifier; Customized Bird Wattmeter. Monday, 26 December 2016. Posted on June 24, 2018 by dh8bqa. uW PLL synthesizers for transverters. The double relay board is a simple Tx/Rx sequencer but with no external Rx preamp and no high power PA it is not really required. Sequentially keyed outputs from the TRS04VD accurately control the timing of all system transmit/receive changeovers eliminating coaxial relay and preamplifier failure. The sequencer is located in the 10Ghz control box and connects the the RF/Sequencer Controller by a multi conductor cable. Transverter & Loop Yagi in Attic T. Transverter can be DC powered by coaxial cable. Ring on the jack plug gives you 25ms delay. The complete transverter is shown here: The interior view shows (left to right) 28V 13A PSU, 23cm filter, DB6NT transverter, relay drive circuit (now replaced with sequencer), PE1RKI module amplifier, PE1RKI PA and fan. The physical construction of the transverters will appear shortly as a separate topic. A transverter is a receive converter and a transmit converter joined by a common local oscillator. My sequencer drives the relays and the 12v bias supply to the PA. 1296 mhz transverter design and construction details t. Posted on September 30, 2012 by g4hsk. During the contest I worked 15 stations with just 2 watts o/p from stations that before I could only dream to work with my old transverter! Good reports from everyone all round. Transverters are most commonly used in amateur radio to convert radio transceivers designed for use on the HF or VHF bands to operate on even higher frequency (microwave) bands. Yaesu FT-817 Transverter/PA Sequencer David Smith – VK3HZ Introduction The FT-817 is a very versatile rig. A "real-world" 7 dB Pi-attenuator consists of a 2W 120 ohm resistor across, 47 ohm straight, 120 ohm across. 4Ghz Transverters and Antennas. Please refer to the Options Tab for the descriptions of the various products available. A good friend of mine tried out his 15 watt PA 3. My goal is to cobble together enough hardware to run transverters on the following bands, 2M, 1. Condition is "For parts or not working". Transverter is built on a classical scheme with synthesizer usage. Here's the design: and in reality, this looks like this once built on stripboard: I've already got a G4DDK VLNA for 23cm assembled here, and coax relays aplenty. Four negative sinked delayed output so higher voltages can be switched. KUHNE ELECTRONIC GMBH Scheibenacker 3 95180 Berg Germany Tel. Setting the RF slider to 100 (max) and the Max Power (dBm) to 1. Sequencer is also switching the power for the MMICs in the transverter as well as the power for the coaxial relay at the output. TX when the PTT is grounded. To accommodate all types of radios, the DCW2004B/HP sequencer can be keyed via a ground on Tx or +VDC on Tx. The sequencer normally provide two rolls. When searching around for information about the ‘7300 a few weeks (or was it month. The xvtr also drives a Toyko HP amp and with these settings provides approximately 300 W from the amp. To Order Call: 386-364-5529 19519 78th Ter. They are all available as a basic Kit, or fully optioned including local oscillator, sequencer, RF Amplifier, and hardware etc. The firmware is written using BASCOM-AVR. Dispatched with Royal Mail 2nd Class. 1296 MHz 23cm transverter 1296 MHz Transvertor. With reasonably fast relays, often you can get away with just a longer time delay at the transmitter end. Each Transverter has a single cable that plugs in the XVTR TX/RX port. I've used this sequencer for about. One of the good things about this upgraded version, ( it’s an update of the very popular EME66 sequencer kit that has found its way into many a Transverter project worldwide over the years) is the single in line connector for all the sequenced outputs. The output of the Si530 is multiplied x16 with a Hittite HMC445LP4E chip to yield an output level of +4 dBm. 5 dBi FEED: W1GHZ dual. A relay sequencer is used in a radio transverter and is use to activate particular stages in order after short delay. You can buy it in my Online Store or on eBay. With general coverage HF transceiver (19 - 29 MHz) one can easily cover 430 - 440 MHz band. Since i now have a linear amplifier on HF bands, a transverter on the 4 meter band and a preamp on 2 meters there was need for a sequencer. It allows key-controlled changeover or direct PTT without damage to the preamp, the coax relays contacts or the PA. 368 MHz VE3HHT: White Box Transverter DEMI: Interfacing DEMI Transverters KUHNE: PTT Control of DB6NT Transverters. Delay time is user defined. A sequencer is the “brains” of a weak-signal station. The sequencer has been made with a simple circuit (IK5ZWU) and adapted to the Eyal Gal. When searching around for information about the ‘7300 a few weeks (or was it month. : +49 (0) 9293 - 800 640 Fax: +49 (0) 9293 - 800 6420. I've used this sequencer for about. Adjustable delay (seconds to ms). In fact, in the general case, a sequencer has a series of switch contacts that are enabled in the proper order and disabled in the opposite order. 13 The two RF boards are mounted face down so that the active circuitry is sandwiched between the PC board ground plane and the grounded wall of the case. Also located in the 10Ghz control box is a coax relay that selects between the 14/28Mhz IF or the 144Mhz IF employed by the transverters. Transverter & Loop Yagi in Attic T. KUHNE ELECTRONIC GMBH Scheibenacker 3 95180 Berg Germany Tel. These oscillators can be used as a frequency reference for a microwave Phase Locked Oscillator (PLO). Up for sale 432/28 MHz or 70 cm/10 m band transverter board. K5TRA Gain & Power Budget T. 5,7 GHz Transverter MKU 57 G from 1991 (*. AEMME_FK-855_B15-144_user. HF-Vox - is active any time (to protect the transverter of TXing into the RX part ) But there is a manual that can be downloaded from Hrisijans web site where all the above mentioned points are explained. This is a perfect complement to a transceiver with a low level transverter port. Oh and some form of keying cable to match your radios, TX out pin it is when you add amplifiers and preamps where you need relays to switch and protect things, and a sequencer to make sure those relays switch when thy are supposed to. Posted on June 24, 2018 by dh8bqa. To accommodate all types of radios, the DCW2004B/HP sequencer can be keyed via a ground on Tx or +VDC on Tx. Hopefully, this design will spur more designers into adding reverse polarity protection. Since it must be driven with 100 mW, a 7 dB attenuator was built so that FT817 500 mW would not fry the mixer stage. 7 and 10Ghz. To configure read carefully instructions in tab widget "Transverter Local Oscillator Or RIG Offset". When I first started my EME tests I was running the TS2000 barefoot and without an LNA so there was no need to worry about using a sequencer. It will do so being totally transparent to the existing transceiver. Shall be well packed please study photographs as they are part of the description. I suspect there are not many people interested in applying these modifications to a Swan TV2. 1296 mhz transverter design and construction details t. On top of the rack is the 1296 MHz transverter/amp/TR switch/sequencer/IF switch. The double relay board is a simple Tx/Rx sequencer but with no external Rx preamp and no high power PA it is not really required. 1296 MHz 23cm transverter 1296 MHz Transvertor. I believe it is a simple mod to split or combine IF on the Transverters if needed. The PA circuit includes a sequencer, providing suitable delay in the TX key signal when activating first the relays of the external PA relay, then the antenna relay and RF module first stage of the transverter. One half of the extrusion contains the LO source board, mounted face down, while the other half contains the transverter board, also mounted face down, and an IF sequencer interface board. 2m the IF is 10m this was working when packed but because I cannot test throughly it’s sold for spares included power cable, attenuator and sequencer if I recall. Notes to construction : the design used "drawer" parts "Made by Tesla" which are replaceable by ordinary elements : KA206 by 1N4148, tran s istor s KC238 by BC548, KF508 by BCY59, resistor trimmer by suitable. to the DEMI TIB-850, but switchable between two transverters) • TX/RX sequencers, bandpass filters, peak-hold circuits for Bird 43 wattmeters, automatic bandswitching interfaces for the FT-100. 7 GHz Transverter MKU 57 G from 1991 DUBUS (*. Microwave Modules MMT 144/28 Transverter. This sequencer will handle up to 4 events; one output is able to sink up to 100v at several amps, and the remaining 3 up to 40v at about 500 ma each. Transverters Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low. Multiples sequencer; PA stacked 2m-70cm-23cm; 23cm Transverter; dummy load 50 ohms; 600w-23cm-ldmos-amplifier-part-II; 1,3-ghz/2,4-ghz-rf-signal-source; bye-bye-DR Congo; ugly balun cdrom box; 160-m-top-band in 9Q; labels-of-wine-in-morse-code; 1kw-70cm-ldmos-amplifier; 13cm-2320mhz-transverter; 1kw 2m LDMOS amplifier; Customized Bird Wattmeter. Showing the single result Transverters Upconverter 13cm $ 26. To Order Call: 386-364-5529 19519 78th Ter. See full list on vhfdesign. Mast mounted preamp for the 23 cm unit has its DC fed up the coax from the built in transverter sequencer. The module has built in RF sensing for changeover plus an external miniature jack socket with sequencer for a hard PTT. , Live Oak, FL 32060 USA Monday-Thursday 10am-6pm Eastern. (8 MHz at -3dB). PTT can be switched on by applying DC voltage 5-15 V A bias tee is needed to insert DC power into coaxial cable. Sequencer output, open collector NPN transistor 30V/0. 2m the IF is 10m this was working when packed but because I cannot test throughly it’s sold for spares included power cable, attenuator and sequencer if I recall. There is an additional descriptionof a sequencer in the 300w 23cm amplifier article listed on the left. The circuitry uses a PIC micro-controller and MosFET switches, and has over voltage and current protection. External transverter/amplifier control with the 1500. Multiples sequencer; PA stacked 2m-70cm-23cm; 23cm Transverter; dummy load 50 ohms; 600w-23cm-ldmos-amplifier-part-II; 1,3-ghz/2,4-ghz-rf-signal-source; bye-bye-DR Congo; ugly balun cdrom box; 160-m-top-band in 9Q; labels-of-wine-in-morse-code; 1kw-70cm-ldmos-amplifier; 13cm-2320mhz-transverter; 1kw 2m LDMOS amplifier; Customized Bird Wattmeter. 368 MHz VE3HHT: White Box Transverter DEMI: Interfacing DEMI Transverters KUHNE: PTT Control of DB6NT Transverters. 10-GHZ STATUS QRV (Rover Only) STATION CONFIGURATION: (Portable) KX3 TRANSVERTER: Elecraft KX3-2M (3w) DEM Sequencer TRANSVERTER: DEMI 10368/144 PREAMP: DEMI ULNA-3, NF=1. At this stage, the transverter concept planning all seems to be coming together. The "ALC" level sets the gain of the output amplifier. Covers 6m-70cm. Transverters / By UR6ISU. It is all solid state switching.