Transverter Sequencer

Subject: [Flexradio] Transverters and the Flex-3000 ps i let WSJT initiate an external sequencer which activates PTT on the rear of the SDR1K last,not using com0com. 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. Even more complexity can arise with transverters. It is now at 38 states. It is essentially built on a circuit board box that makes its components exposed. Back side of transverter. ELECRAFT TRANSVERTER APPLICATION NOTES Rev C By Dave Olean (K1WHS) and Jay Rutherford (K1UC) Editors Note: This article was written before the introduction of the K60XV low level transverter output option for the K2 and before the introduction of our XV transverters. 840 but you can not then transmit on 438. IF output from ft-817 G4HUP made an excellent kit for this. AD6IW, Goran Popovic, microwave site with 23cm synthesized transverter. 4GHz(9cm)was the band on which I made my first microwave transmissions back in the very early 1970s. This allows relays and amplifiers to power up / down before the signal is applied and stops damage to power amplifiers and LNAs. 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 has the following features. JNT004 1296MHz Transverter ModuleThis was originally published in RadCom June/July 1994. My construction has 4 output’s, so that a transverter also can be controlled when needed. Posted in Antennas and Feedlines, Shack Design and Construction, Station, Station Automation, Station Design, Station Performance, QSOs and QSL'ing, Tower Construction and Maintenance. The DX Engineering TVSU-1A Time Variable Sequencer Unit is a microprocessor-based transmit/receive control signal delay unit. PICAXE TRANSVERTER SEQUENCER. The sequencer of the ZS-1 has to be adjusted to 1W, maximum 2W. 5mm socket at left is for interfacing to a serial port on a PC for re-programming. Transverter for 23cm amateur radio band. The physical construction of the transverters will appear shortly as a separate topic. The new design v 2. I suspect the box is bright nickel plated. SOLD Down East Microwave 144-28 transverter. Since my old sequencer has gone bad, I kept looking for a new one that should definitely have the function “TX inhibit”. I will include a Down East Microwave TR Sequencer at no extra cost. This last one is provided by a homemade “Transverter Interface” located close to the IF tra nsceiver. Connecting the TX Inhibit Circuit to the K3S In order for the TX Inhibit circuit which I built into the Sequencer ( See HERE ) to work with the Elecraft K3S, I needed to wire a couple of connections from the Sequencer to the K3S ACC jack and change some Menu Settings on the K3S. It has been designed to fully control a Transverter and various other components like, antenna relays, power amplifiers, and preamplifiers etc. The pulse latched coax relay and transverter module are mounted on a base-plate. Two relay types, with different voltage and current ratings, are available through this website as indicated below. It offers 3 switching outputs in total, which have ascending delay times. Doing this required some fancy sequencer work, however. It also makes a very good IF rig for a microwave transverter. transceiver's power output to the transverter jack is never more than 100 mW before performing the power setting on the LT-200. PTT birakildiginda da tam tersi yol izleniyor. The Elecraft XV50, XV-144 and XV-222. First sequence event can provide 12 - 28V up to a couple of amps to drive change over relays. This is where a sequencer can help if you can get it to lower the. Thanks to a tip from Jonathan, KF7LFK, who is a professional surveyor, two very stout tent pegs driven in an "X" pattern at the base of the tripod with a strong nylon strap looped from the apex running down to them allows me to hold the array against the earth in tension. 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. Top view showing the relay sequencer board and 12V power distribution. 5 GHz WiMax unit appeared on Ebay I could not resist buying one just for the two 20 Watt 12Vdc power amplifier units inside. Тhe Transverter automatically switches to the TX mode when RF power is applied to IF (144-148 MHz input ) SWR Voltage Can be measured by high impedance voltmeter FWD - voltage of forward wave REF - voltage of reflected wave GND - ground PWR / VTT PWR ON: The Transverter can be DC powered by coaxial cable. A frequency transverter ( 10 ) and method for enabling bi-frequency dual-directional transfer of digitally encoded data on an RF carrier by translating between a crowded or otherwise undesirable first frequency band, such as the 2. Is that likely to cause any issues? Any other timing problems you can think of? Do I need a sequencer?. The transverter sequencer comes with a 20 mS delay for all settings. It is also suitable for sequencing the switching of high power RF amplifiers with a transceiver. 4 GHz ISM band, and a less-crowded or otherwise desirable second frequency band, such as the 5. Tohtsu coax relay from FT817 for input switching between 2. This page contain electronic circuits about Electronic RF transmitters Circuits. Posted in Radio e Accessori Tagged , Transverter UHF Leave a comment Links – Radio e Accessori Pubblicato il 01/08/2016 , Ultimo aggiornamento 27/08/2019 By pianetaradio. This sequencer is even better, and 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. 1296 MHz to144 MHz Transverter - F5LGJ. 5mm socket at left is for interfacing to a serial port on a PC for re-programming. 4 GHz or 13cm band. 925 GHz - GPS-TCXO 10MHz switch Down left TCXO - Relay IF RX - TX way - TRV 24. This is a general transceiver problem. • Sequenced preamplifier, RX, and TX feeds • 3W 50Ω IF TX pad • On-board 5V regulator • On-board 8V (or 9V) regulator for transverter system supply. (Thanks Lou, VK3ALB, for that suggestion in the first place) If the coax is plugged into the transverter, and the control cable is not - then no big deal. , Live Oak, FL 32060 USA Monday-Thursday 10am-6pm Eastern. The RF relay is a little Swedish made GHz SMA relay (branded Philips) whilst DC voltage is sequenced to the relay, amplifier bias (12V) and the the transverter PTT using a W6PQL sequencer and a band of 12V miniature relays. Enhanced version of "fool-resistant" sequencer with Power Output LED. LNA Technology – Low noise cavity input preamps and sequencers. As with my earlier 5. 13 transverter and amp (2) So, yesterday another milestone and a small setback. Now the pre-adjustment of the outputpower of the ZST-200 has to be done. This download is the complete ShowTime Sequencing Suite. F5DQK – 4 octobre 2010 Ensemble 2,3 GHz transverter + ampli + sequencer rel 3 1 Ensemble TRx 2. High-gain LNA, high IP preamplifier for 23cm/13cm. For example LNA, used together with TCVR and PA or LNA used with TCVR, transverter and PAetc. DXE-TVSU-1B Recording Equipment pdf manual download. I use a DEM sequencer to control the transverter and amp T/R as well as controlling microphone PTT. The ubitx sans driver and finals will put out roughly the right power for most modern transverters with out the problem of too much power. Swap & Sell Forum. It has been designed to fully control a Transverter and various other components like, antenna relays, power amplifiers, and preamplifiers etc. First is a sequencer which switches the RF to the transverter to prevent it from transmitting while its internal antenna relay is switching. This sequencer is suitable for a lineup of HF transceiver - VHF/UHF transverter - PA, but it can be adapted for other systems too. Hopefully, this design will spur more designers into adding reverse polarity protection. There are two leds on the front – one for the input power indicator and the second to display the correct SWR…a really good idea! The module has built in RF sensing for changeover plus an external miniature jack socket with sequencer for a hard PTT. M2 2M-1K2 High Power 2 Meter Amplifier Bottom Line The M2 2M-1K2 is a quiet and conve-nient solution for high power operation on 2 meters. In the picture you see the stack of the main transverter board and the sequencer underneath it. 3 GHz to 144 MHz - KK7B. Transverter MICROSTRIP V. 2 nd Transverter. The Elecraft XV50, XV-144 and XV-222. To break out the microphone PTT line, I use a. The following discussion about the preamplifier and antenna relay configuration took place in the Moon-Net reflector. So far, because my PA's on these bands are low power, I hard-key the T/R relay but it is not sequenced -- radio PTT = transverter PTT = T/R relay PTT, all at the "same" time. Both devices were developed in Asia, where offbeat game devices and chip mods are frequently encountered throughout the area. In other words, the sequencer control cable needs to be plugged in before the TR relays can actuate, and switch over into the RX mode. Elecraft provides a TX INHIBIT line at pin-7 on the ACC jack. amateurradio) submitted 1 year ago by array_repairman N0MO [E] Yesterday, I was given an award from my club that came with a $300 check for me to use on personal radio projects. 3 Transverter. filters centred on about 2. 432-28 432 MHz Transverter Assembled, 432-28CK Complete kit manual (RA30H4047 or SAU83L version) 432 MHz Transverter Complete kit manual, 432-28CK Complete kit manual (M57745 version) L432-28 432MHz Assembled Transverter manual, L432-28CK Complete kit manual (Rev B 2012-2017 ) ERRATA PAGE FOR NEW L SERIES VHF AND UHF TRANSVERTER KITS. The transverter will not need a sequencer and will accept up to 10 w of drive from the IF radio (as per DEM documentation). Output SMA relay for T/R switching between XDK transverter RX path and the Spectrian amp O/P. Cat Control + Transverter Or use some kind of external unit like a sequencer. So now the standard microphone simply plugs into the squencer and a new 8-way (1:1) lead goes from the sequencer to the microphone socket on the front of the rig. The sequencer normally provide two rolls. 7GHz DB6NT kit I found construction very straightforward and the equipment was made and aligned in two or three days. The SSB-Electronic GmbH offers solutions for high-frequency applications. It is essentially built on a circuit board box that makes its components exposed. TRANSVERTER. EME Frequencies 1296 MHz (23cm) Coquitlam, British Columbia, Canada Position 122. 4 GHz ISM band, and a less-crowded or otherwise desirable second frequency band, such as the 5. Downeast Microwave – Transverters and equipment. • Again following a delay, the transverter gets the signal to switch from receive to trans-mit mode. The sequencer of the ZS-1 has to be adjusted to 1W, maximum 2W. Precise frequency helps for QSOs. A High-Performance 50MHz Transverter by Dave Powis, G4HUP The 'Cray' High-Performance 70MHz Transverter by Dave Robinson, G4FRE/WG3I Solid-State Power Amplifiers. Substantial part of solution of such unlucky situation is an installation of appropriate time sequencer into each final stage PA, which is used. : +49 (0) 9293 - 800 640. AD6IW, Goran Popovic, microwave site with 23cm synthesized transverter. The sequencer of the ZS-1 has to be adjusted to 1W, maximum 2W. I had also purchased from. PA home mades. This last one is provided by a homemade "Transverter Interface" located close to the IF tra nsceiver. April 14th, 2015. , Live Oak, FL 32060 USA Monday-Thursday 10am-6pm Eastern. I am not so sure that a "Rover" would put it in the vehicle this way. If the transverter gain is more than 10 or 15 dB, reduce the RF gain of the DSP-10. 5mm socket at left is for interfacing to a serial port on a PC for re-programming. Each important parts of TX/RX chain will be then controlled in certain predicted time steps, what ensures, that the above described conflict between TX and RX ways will be eliminated. One must chose either INHIB = HI or INHIB= LO in the K3 menu to turn it on. 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. Earth-Moon-Earth Station VA7MM. The external PTT input of the transverter may be connected directly to the transverter’s PTT input (see component placement document) near C100 or C102 bypassing the sequencer. This sequencer is purpose built for the popular Yaesu FT-817 transceiver. Sequencer is an assistive device that protects a variety of amateur equipment in common use from damage. The problem I see is that every time I step on the PTT, the two transverters are switched. PICAXE TRANSVERTER SEQUENCER. 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). CROSS BAND REPEAT Yaesu missed the boat a bit here, the FT847 does have cross band repeat but one way only, this is a big down fall this means if you say have 50. First stage preamplifier and. Transverter DB6NT MKI ( DUBUS 1/91 ) with G4DDK LO. There are many sequencer designs. Applicaton: Due to its small dimensions and light weight this transverter is suitable for portable or stationary operation. Chartered Engineer, ex wage slave, Radio Amateur, Treasurer of the UK Microwave Group, RadCom GHz bands columnist, radio propagation nerd and RF PA design nut. For those of us using a transverter, adequate protection can be as easy as a sequencer. : +49 (0) 9293 - 800 640. My construction has 4 output’s, so that a transverter also can be controlled when needed. 2899N Grid Square CN89og. One fail-safe feature is provided by RF sensing in addition to hard switching, so that even if the control cable fails (or is forgotten), the transverter will be switched safely. Wolf-Henning Rech DF9IC. RF output Watts (or milliwatts). I have decided fo locate the G4 away from the PA and LNA. So far, because my PA's on these bands are low power, I hard-key the T/R relay but it is not sequenced -- radio PTT = transverter PTT = T/R relay PTT, all at the "same" time. But it can be used in any amplifier antenna scheme. 4GHz Transverter system Building a DB6NT 3. > quando ero IW pur avendo il KNWD TS770, mi sono costruito i transverter. My sequencer drives the relays and the 12v bias supply to the PA. Now we are cooking with gas! I asked WW1X to look over the game plan with me to make sure that I had all the right connections going to the right places between the K3 and the sequencer. 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. Ham Radio Transverters (28 to 144 you might get a spike of unattenuated RF into the transverter. 5 KW RF Amplifier 1296 Hyain Rotor Green Heron Rotor 2M/20M Rotor IC-756 PRO3 M2 Sequencer Timewave. VE3CVG will be available to assist with assembly. 432-28 432 MHz Transverter Assembled, 432-28CK Complete kit manual (RA30H4047 or SAU83L version) 432 MHz Transverter Complete kit manual, 432-28CK Complete kit manual (M57745 version) L432-28 432MHz Assembled Transverter manual, L432-28CK Complete kit manual (Rev B 2012-2017 ) ERRATA PAGE FOR NEW L SERIES VHF AND UHF TRANSVERTER KITS. 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. I attribute this to the transparency of the new DEMI transverter and the fine audio quality associated with the FLEX-Radio HF transceiver. A relay sequencer is used in a radio transverter and is use to activate particular stages in order after short delay. However, it does benefit from more output power with an external PA. I had also purchased from. g3pho 10ghz transverter for 2001 Towards the back end of year 2000 I bought a 10GHz transverter kit from Michael Kuhne, DB6NT. It provides 0-30 ms of delay programmable in 2 ms increments to as many as five outputs tied to the CW keying or push-to-talk (PTT) lines. The sequencer normally provide two rolls. 2 of our transverter features better performance and some new functions. I secured the transverter boards and parts for $48. You have to select either INHIB = HI or INHIB = LO to turn it on. This means that the TX output is delayed approx. The IF frequency is 50 MHz for an RF frequency of 10,368. 2 Description: Transverter for 23cm amateur radio band. For kits specific to amateur radio, the web is your best source of information. To break out the microphone PTT line, I use a. This is based on an SG Labs 13cm transverter, and a Spectrian PA. It allows key-controlled changeover or direct PTT without damage to the preamp, the coax relays contacts or the PA. This download is the complete ShowTime Sequencing Suite. And the sequencer3, my Smart Fool-resistant Sequencer Mark 4, has enough smarts in an Arduino to operate the whole 432-MHz system. PA home mades. Transverter with high THREE-SIGNAL DYNAMIC RANGE: - Local oscillator (with temperature-compensated) 116 MHz. The sequencer is located in the 10Ghz control box and connects the the RF/Sequencer Controller by a multi conductor cable. The EME66 Sequencer is one of the most popular Kits that we have ever sold. 2) offers better performance and some new functions. 6667 MHz “low noise” U310 oscillator is amplified. The circuit is shown in Fig 5. The Microphone sockets on the front and back panels allow me to “break” the PTT line to the TS2000 and use the controller to enable TX / RX. Yaesu FT-817 Transverter/PA Sequencer Introduction David Smith – VK3HZ The FT-817 is a very versatile rig. Enhanced version of "fool-resistant" sequencer with Power Output LED. Hopefully, this design will spur more designers into adding reverse polarity protection. We have found nice article (by Scott N0EDV) about installing a sequencer inside this transceiver. IF output from ft-817 G4HUP made an excellent kit for this. Four negative sinked delayed output so higher voltages can be switched. The small blue PCB with the toroid coils is an off the shelf 12V to 24 Vdc convertor for powering the mast head preamp and it's associated 24V antenna change over relay. 1st Transverter. The directivity achieved by trimmer resistor as terminator, was about 17 dB (at around 85 ohms). A good friend of mine tried out his 15 watt PA 3. Sequencers will not come into play with your setup as described. RF Path and sequencer's schematic circuit is shown in Fig. The most intriguing one was the one by DB6NT (yes, he of Microwave transverter fame): Michael developed a small PCB that could be built into the transceiver instead of the external tuner interface providing low power output (around 0,3 mW) as well as receive input. All components are sequenced with a JWM Engineering sequencer board. When I move up to the high-power class of operation, I will install a sequencer on each. To control all stages in the transverter a sequencer is used. - about 70cm EME amateur radio stations. Sequencer Il circuito del sequencer diventa indispensabile quando si vuole collegare assieme un transverter, un apparato ricetrasmittente ed un’antenna. This index has a wide collection of Transmitter schematics, that can be very useful for the enginner or the student who need a circuit / schematic for reference or information for a project that has to contain an RF tr at category transmitter circuit : RF CircuitsCircuits and Schematics at Next. This allows relays and amplifiers to power up / down before the signal is applied and stops damage to power amplifiers and LNAs. The Transverter is shown with it,s matching Control Unit which houses all the voltage distribution and Sequencing Also a Pic controlled sequencer and relay. This project describes how to build this sequencer. You can either adjust it with the max power dbm setting or in memory settings. KUHNE ELECTRONIC GMBH Scheibenacker 3 95180 Berg Germany Tel. Transverter Head Unit Control & Switching Module Sequencer, 28V supply for relays, Protected +/- supplies for LNAs. A transverter is a receive converter and a transmit converter joined by a common local oscillator. relay Sve u kutiji. Sequencer Minikits DC module was an ATX power supply module from "Jaycar" providing +5 V @ ~ 2A and -12V @ ~ 100mA Various other DC control and sequencing lines provide outputs to external PA's and LNAs if required. QSK, llc Model USKI-5 Universal Sequencer and Keying interface. PICAXE TRANSVERTER SEQUENCER. You can either select a local file or input a remote file location for conversion. As for the sequencer, so far the internal RF input sensing of both the transverter and amp seems to be working okay without any need for any manual keying delays. 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. 23cm transverters (self. A typical setup is shown to the right. It has the following features. F5DQK – 4 octobre 2010 Ensemble 2,3 GHz transverter + ampli + sequencer rel 3 1 Ensemble TRx 2. Since i use all these devices in a OR situation and not AND. The transverter also includes a ADF4350 based local oscillator, Sequencer and ATF54143 preamp boards. 76GHz - 435MHz, TRV5670, Accessories, by VHF Design, Transverter’s block scheme is shown on Fig. Improved Amplifier Interfacing for the Yaesu Mark V FT-1000MP A simple interface circuit to increase the flexibility of using this popular transceiver with multiple accessories including the FTV-1000 and FT-920. Ready to try your hand a coordinating the lights, music and motion? Here's our software. There is a relay that will switch the RX. The path loss from earth to moon back to earth at 1296MHz is a whopping 271dB. which is more than sufficient for any solid state transverter. 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. Endkundenshop main_nav Produkte Meta-Description. DCW2004 B & DCW2004 B SHF Sequencer Controllers. Inside the 10 GHz Transverter The case is made from 3/16″ aluminum plate and was custom made at a machine shop. This allows relays and amplifiers to power up / down before the signal is applied and stops damage to power amplifiers and LNAs. There is more to be. • Sequenced preamplifier, RX, and TX feeds • 3W 50Ω IF TX pad • On-board 5V regulator • On-board 8V (or 9V) regulator for transverter system supply. Transverter 70/28 MHz. That has several advantages. Sequencer with relays is a fast solution and you may to setup it within few tens of minutes. This changes allow to use the …. High-gain LNA, high IP preamplifier for 23cm/13cm. It also makes a very good IF rig for a microwave transverter. Building your own radio equipment or "homebrewing". April 30,2013: On the bench 20 w Transverter 23cm/10m (Indoor) with parts of DB6NT + W6PQL to be assembled and followed by Power amplifier 500w. Swap & Sell Forum. These two transverters are, ironically, equivalent in power output and receiver function though they operate on different bands. I built the sequencer on basic copper strip board and added four relays and "jumpers" so that for each event I could either switch the line to ground, provide 13. It was published: Hungarian:. by some rigs. com: Read about new projects, exciting contacts, and funny things. You can either select a local file or input a remote file location for conversion. Hopefully, this design will spur more designers into adding reverse polarity protection. uW PLL synthesizers for transverters. First stage preamplifier and. 925 GHz - GPS-TCXO 10MHz switch Down left TCXO - Relay IF RX - TX way - TRV 24. 3 Local Oscillator Quite a basic and common concept, a 38. Adjustable delay (seconds to ms). A note using the K3 with a sequencer and a transverter: I use the Elecraft K3 as my IF radio with transverter. 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. Sequencer description is under projects. Back side of transverter. For those of us using a transverter, adequate protection can be as easy as a sequencer. The bottom enclosure houses the VHF / Microwave SDR station with the built in RF interface and built in assorted station peripherals such as the CW keyer, beacon keyer, sequencer, and internal 10 MHz precision OCXO. The TRS04VD is a transmit/receive control circuit designed primarily for use with vhf/uhf transverter or transceiver, power amplifier and mast mounted preamplifiers. Logic gates have inputs and an output (Y) which is a function of the. Almost 20 years ago I built my own 23cm transverter - DF8QK. 6667 MHz “low noise” U310 oscillator is amplified. Like suddenly not keying the sequencer (and transverter, amp etc) when I change slices because it randomly switched my spilt IF tranverter setup to a different configuration for no apparent reason. For example with the usual sequencers one can accidentally press the key "SEND" on the transceiver's panel and the preamplifier's device is fried in a millisecond. 10 GHz Transverter Construction. For kits specific to amateur radio, the web is your best source of information. It also includes some features to allow simple transverter operation with the FLEX-6700/6500. The microphone keys the control line of the sequencer. The transverter sequencer comes with a 20 mS delay for all settings. This article focuses on the basic HOWTO to get your FLEX-1500 on the air with your favorite transverter. I already had an the Ionica 15 W PA module but when a number of Airspan 3. Endkundenshop main_nav Produkte Meta-Description. As long as one can be sure that the transverter is keyed into transmit BEFORE the 28 MHz power spike occurs, everything works out OK. PA home mades. Pix Model Type Quicknote; AD-2VHF/UHF duplexer: AD-3VHF/UHF duplexer: ADMS-VX3Windows programming software: For VX-3: ADMS-VX6Windows programming software. Sun 23rd Dec 2018, 20:29 #4 brandon lind. The primary reason for using a sequencer is to protect the RF relay and the amplifiers hooked up to it. Projects_homebrew Techniques antenna modelling gamma match. KUHNE ELECTRONIC GMBH Scheibenacker 3 95180 Berg Germany Tel. transverter transwerter sq8aqx 10ghz 3cm. Phase noise LO is better -150 dBc/Hz at shift of 10 kHz and better -145 dBc/Hz at shift of 1 kHz ! LO for all my XVTR (144,432,1296,6cm and 3 cm) by UA3AOH !. There are two leds on the front – one for the input power indicator and the second to display the correct SWR…a really good idea! The module has built in RF sensing for changeover plus an external miniature jack socket with sequencer for a hard PTT. Circuit Description: This is a 100 watt basic power amp that was designed to be (relatively) easy to build at a reasonable cost. My sequencer drives the relays and the 12v bias supply to the PA. C +/- 1 ppm LO temp. Technologies Pcounter A-One Eleksound Circusband A-Open AOpen A & R A-Team A-Tech Fabrication A-to-Z Electric Novelty Company A-Trend Riva AAC HE-AAC AAC-LC AAD Aaj TV Aakash Aalborg Instruments and Controls Aamazing Technologies Aanderaa Aardman Animation. Transverter 70/28 MHz. 3 GHz and a 10 MHz oven-controlled crystal oscillator. The main device's assignment - ensure the inclusion order of devices listed above with correct order and delays. This will result in the high level IF drive being applied to the transverter’s RXIF section which could cause damage to the circuit and Mixer. The versatile sequencer Ideal keying interface for transceivers, power amplifiers, TMAs, transverters, VFOs, receiver muting, T/R relays and switches, and other accessories Provides the necessary time sequencing for perfect QSK or EME operation and protection of TMAs, transverters, and other equipment. ELECRAFT TRANSVERTER APPLICATION NOTES Rev C By Dave Olean (K1WHS) and Jay Rutherford (K1UC) Editors Note: This article was written before the introduction of the K60XV low level transverter output option for the K2 and before the introduction of our XV transverters. The transverter also includes a ADF4350 based local oscillator, Sequencer and ATF54143 preamp boards. Tohtsu coax relay from FT817 for input switching between 2. At this stage, the transverter concept planning all seems to be coming together. Above: Looking to rear panel. The transverter sequencer comes with a 20 mS delay for all settings. The receiver noise figure is under 1 dB. This project describes how to build this sequencer. İlave olarak TS480'in iki adet PTT portu mevcut. I use a DEM sequencer to control the transverter and amp T/R as well as controlling microphone PTT. For the moment no LNA or power amplifier is attached, but there is enough room left on the bottom side to accommodate this as well. Subject: [Flexradio] Transverters and the Flex-3000 ps i let WSJT initiate an external sequencer which activates PTT on the rear of the SDR1K last,not using com0com. Adjustable delay (seconds to ms). If, for example, your 6m transverter requires your transceiver to operate on the 10m band, then you would set the 6M transverter panel's offset setting to 22000, select the + (additive) button, and check the Enabled box; If QSYed to 50100, Commander would set your transceiver to 28100. I have for sale several different 2 meter items. uW PLL synthesizers for transverters. I will include a Down East Microwave TR Sequencer at no extra cost. In stripping down the transverter I split the PA block so as to check for any signs of water ingress. Mini Kits do sell a sequencer but I decided to build my own using a PIC. Enhanced version of "fool-resistant" sequencer with Power Output LED. The container is a repurposed manual KVM (Keyboard, Video, Mouse) switch and pre-drilled holes hold flanged BNCs just right. , Live Oak, FL 32060 USA Monday-Thursday 10am-6pm Eastern. It still works, but with it's 3 stage bipolar RF Pre-amp and poor filtering I could only hear the strong signals. Previous transverter models had a 50-70 mS fixed delay. 3rd Transverter. T/R Sequencer for Amateur Radio. The module has built in RF sensing for changeover plus an external miniature jack socket with sequencer for a hard PTT. The device can handle up to 30V @ 50ma. Problem is that this radio doesn't have PTT output. With a 4-page manual. The sequencer is the same as already used in other occasions (see description) Info Voltage converter 12/24 V. A Down East Microwave Product Manufactured by Q5 SIGNAL, LLC January 2018 2 L222-28CK REV 1A IF Option: The IF (28 Mhz. The sequencer of the ZS-1 has to be adjusted to 1W, maximum 2W. I suspect there are not many people interested in applying these modifications to a Swan TV2. Problem is that this radio doesn't have PTT output. A user familiar with a radio such as the IC-756Pro3 or IC-746Pro should find the IC-9100’s learning curve manageable. 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. This sequencer is purpose built for the popular Yaesu FT-817 transceiver. 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. • Finally, once again after a delay, the IF. There are many suppliers in the USA and Europe, for receivers, transmitters, transceivers, keyers, DSP filters, transverters, sequencers, filters etc. First stage preamplifier and. wiring diagram Assembling. You can see the SG Labs transverter, the sequencer from above, the VLNA and the TX/RX switching - just the PA to be added. The physical construction of the transverters will appear shortly as a separate topic. Pix Model Type Quicknote; AD-2VHF/UHF duplexer: AD-3VHF/UHF duplexer: ADMS-VX3Windows programming software: For VX-3: ADMS-VX6Windows programming software. The 28V main voltage is supplied to the amplifier contentiously. Forward and reverse bias switch a diode between the low and high impedance states, respectively. 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.