Demi 10ghz Transverter

The two silver boxes are the SG-Lab transverters, the circuit boards on the right are the W6PQL sequencers, the blue component on the left is the 902-915 band pass filter and the components with the fans are the DEMI amplifiers. A K3 uses open collector devices so it is active low. The gear is "jointly" owned by Jimmy Long, W4ZRZ and Bill, with each contributing parts to the cause. Just add an output relay such as our SR-2, a 10GHz. These units are ideal for 10GHz WBFM ops. Here is a reply I just received from DEMI tech support. Radios included a TM-V7A dual band FM radio, FT-857 for all mode coverage of 6m, 2m and 70cm, a Kenwood 1296 FM HT, an HTX-100 driving a DEMI 222 transverter and a 10GHz tellurometer. With the good exchange rate at the moment, the amp kit (USD$225), a 10MHz 4-way active splitter kit (USD$25) and postage (USD$37) ended up costing AU$282 delivered to my door. (The +12V is delivered on PTT condition) I also put a dummy load on the DEMI transverter TX output just to be safe. The transverter is used as my "terrestrial" transverter and incorporates a homebrew 3W amp and the DEMI 8 W amplifier. This NEW DB6NT transverter for 5760 MHz. com is doing? Come and see the site and domain statistics for downeastmicrowave. transverter as this was a high gain device ( 26dB typical @ 10GHz). Hier soir, j'ai remonté la station sur la terrasse. Early 10GHz DEMI Low Noise Transverter Option by K0CQ Today the documentation says nothing about it, including the write up in the recent International Microwave Handbook, but there was a low noise receiver option. 903MHz Transverter Project (Club) The objective was to stimulate 900MHz activity in the Ottawa area. The caveats are this: 10GHz is a lot trickier to get going. Recent re-design by DEMI has improved xtal LO frequency stability while the xtal oscillator has excellent phase-noise performance. TXT file that he made up that works. Gegenüber den WBFM Systemen war nun eine Leistungssteigerung von ca. (Hopefully it's that gargantuan "laser" that K9HA pilfered from Dr. 10 GHz FLEX/DEMI-1500&144IF 2 Meter Transceiver The purpose of this mash-up is to package the PCBs from a DEMI L144-28INT intermediate transverter and DEMI ApolLO synthesizer within the covers of a modified FLEX-1500 transceiver while retaining the ability to revert back to the original multiband FLEX-1500 configuration. You mention offset for 10 Ghz transverters based on a 70cm IF. I can get +19dBm out of it as the input pad has too much attenuation, don’t seem to have any 47 ohm 1206 resistors in my junk box. But puts me in a bind because $85 for 222mhz is a lot better than the $500 lot from Q5 (the new DEMI supplier for UHF/VHF but not SHF) or take chances with a several hundred dollar used unit. The PCB was designed and etched by Michael DL1YMK "How to get QRV on 10GHZ EME in a portable way" Sweden EME 2013 presentation and Cheap solid state power. I made provision for a MMIC amplifier driver stage with input and output attenuators IF required. La réception de la balise F5ZCS du 56 est très bonne malgré un QSB important (519 à 579). The current DEMI transverters for 2304 - 10Ghz support 10MHz reference. Building a 10 GHz Rig From Surplus Parts HAMCOM 2012 Plano, TX DEMI Transverter Kit Top View for a 10GHz Transverter. 00: L50-28CK: Complete kit vers. a DEMI transverter and an F9FT 23 element Yagi. txt) or view presentation slides online. My 10GHz QSO Log WBFM and NB Activities Newest entries are at the bottom of the page (ie. Je décidait alors de reconstruire mon transverter 10 GHz et de l'équiper d'un préamplificateur (LNA, Low Noise Amplifier, préamplificateur à faible bruit). 1296 MHz Transverter – Right Side Up Simple and Cheap Paul Wade W1GHZ ©2008 [email protected] This low level RF is used to drive the EME TWTA. The first three transverters I acquired were the 13cm, 9cm, and 5 cm DEMI versions from N0IO. For the record, my 10GHz station consists of a converted MITEC data link driving a 3W DEMI PA and a 600mm circular dish. Early in this project it was clear that there were some key problems that had to be solved, 1. The two main reasons to use a transverter are Performance and Economics. Recent experience in the 10 GHz cumulative contest and the September VHF contest shows that a stable 10 MHz reference oscillator can be used to stabilize a 10 GHz transverter through a PLL generated 106. The one limitation is the K3 can only control 9 transverter bands so only control through 10GHz is available. A 10gHz portable microwave station was completed utilizing a FT-817D for the "I. Welcome to our Internet Store ! *** TO BUY WITH CONFIDENCE, YOU ARE GETTING PAYPAL PROTECTION ! *** oooooo oooooo. Un séquenceur gère l'ensemble des commutations en émission. To Order Call: 386-364-5529 19519 78th Ter. I ended up packing the 5760 EME transverter, the amplifier , and the KX3. Being the only 10GHz Transverter in my ham station, I wanted it to be a "one size fits all". Toujours la même sensation avec le 5. My 10GHz QSO Log WBFM and NB Activities Newest entries are at the bottom of the page (ie. • 1979: G3JVL waveguide 10 GHz transverter -Tuned circuits in waveguide -378. I am so pleased, it has been a long time in the construction and planning. If the transverter was configured for direct connection to your transceiver, (10 watts or less) follow the steps listed below. Le potentiomtre P14 insr dans le circuit de IC10 sert galiser l'amplitude des sommets des deux demi-sinusodes. Raw PCB material RO5870-0,5mm-17µCU (180x90mm) with photoresist, was obtained from DC3XY. Le changement de canal mémoire est. DEMI 10 GHz Amplifier Photos Click on images below to see full-sized version. 10GHz on the Cheap. Currently, there are 4 versions listed in the DEMI on-line catalogue: an assembled and tested version and 3 kits, of which the version reviewed here is the 3-3PACK full kit. Tout semble fonctionner. Also, please understand that the conversion is simple math. QSO réguliers en été avec I8EMG pres de Cosenza (environ 1200km) depuis Perpignan sur 144/432/1296/2320 et aussi 10GHz en portable. Simple 10 GHz SSB/CW Station for the Beginner by Bob Gormley WA5YWC. I am currently putting together a VHF+ station based around Flex Radio and DEMI transverters. Par contre. 10GHz, 1296MHz, 2012, MAD. Transverter 869 Mhz light de F1JGP et bouts de "boites blanches + OCXO F1JGP dans le shack avec montée en coax TV (TRVT et OCXO décrit sur mon site). com/web/index. The transceivers are IC910, TS850 or TS2000 with a 432/28 transverter, and an SDR receiver. Debo decir que si ya estaba limitado técnicamente en 144 ahora en 1296 era empezar de cero totalmente y con peores limitaciones de conocimiento de electrónica. I may be successful in getting the Directive Systems dish and DEMI transverter and 2W+ amp at 72' level (~250' HAAT) tomorrow. Why use a Transverter? The two main reasons to use a transverter are Performance and Economics. Description du kit dans le catalogue. This transverter is suited for home, hilltop or can be used for roving. I was not able to take advantage of measuring moon noise as a pointing assistance as there was a local beacon up the band that was getting into my GR-1216 noise meter. A K3 uses open collector devices so it is active low. Will update later. 10MHz GPS Disciplined Oscillator and NTP Server Given that most modern transceivers today are available with a built-in TCXO module I was sceptical about the need to have a 10MHz GPSDO (GPS Disciplined Oscillator) as part of the equipment in my shack. QRP HF Operation. 5MHz LO source. The transceivers are IC910, TS850 or TS2000 with a 432/28 transverter, and an SDR receiver. I bought both DEMI 50 watt transverters and no longer need this. Heb mijn 10Ghz transverter nog afgeregeld op jouw baken op Schiphol. -20dbm is the output of the transverter port on the ICOM Pro2/Pro3 transceivers and probably the newer ones too. The output of the Si530 is multiplied x16 with a Hittite HMC445LP4E chip to yield an output level of +4 dBm. 10GHz Transverters at KO4BB. The gear consists of mainly DEMI transverters, along with Toshiba power amps, all mounted on plywood bases. At the stage that I acquired the device no commercially available boards were available, so I etched up my own complete with a regulated Vdd supply. Le futur travail est la finalisation du 2m, 70cm, 1,2Ghz et 10Ghz et les articles de Radio Pratique de 1965. QRP HF Operation. amplifiers, receiver preamplifier or transverters for the microwave bands. Link to -> Model 1152-A Phase Noise Measurement Plot. configuration. This transverter is suited for home, hilltop or can be used for roving. My 10GHz transverter is based around an early version of the DEMI 10GHz unit still being sold by Steve, so it had a crystal oscillator in the LO (new ones are different, as explained here). There are not many microwave enthusiasts in North West Florida, or if there are many (more than me alone?), I have not found them. d'utilisation. FT817 driving a pair of DEMI transverters into AA9IL's Loopers. Search the history of over 384 billion web pages on the Internet. I connected the external transverter to the SDR-1000 RFE board, connector J2, in exactly the same place that the internal DEMI 144/28FRS transverter would be plugged into. The transverter is working with a 100 Watts GaAs-FET amplifier stage and a noise figure of 0,65 dB. The first three transverters I acquired were the 13cm, 9cm, and 5 cm DEMI versions from N0IO. 4 GHz transverter and the W1GHZ 3. labels: 10 ghz, 10ghz, mentoring, microwave communications, nlrs, northern lights radio society, radio organizations, weak signal. A transverter converts 10 GHz transmit and receive RF signals to/from an Intermediate Frequency such as 144 MHz transmit and receive RF signals. Assembled dish. My transverter drifts fairly heavily, upwards of 20-30KHz. This NEW DB6NT transverter for 5760 MHz. LO krystallet på MICROLO kortet blir oppvarmet av en 60 graders NTC som var loddet direkte på krystall huset. Transverter PC Board ONLY. Transverter de base : Puissance de sortie 2W et préamplificateur incorporé; le tout complété d'un ampli de 5,5W DEMI et d'un LNA réalisé avec un morceau de platine de Franco Rota (NE32584). The MOASU was designed to work off a PC parallel port which is active high. Once we even had the 5 & 10 transverters and amps mounted behind the dish. antenna such as our PROCOMM 10-001 and join the fun on 10 GHz. I enjoy QRP (or low power) operation when away from home, sometimes mobile sometimes based in motels, etc. Amateur Microwave Communications. Four +12V pulsed outputs for driving two microwave relays used to switch VHF/UHF signals between preamplifiers, power amplifiers and microwave equipment as required. There are not many microwave enthusiasts in North West Florida, or if there are many (more than me alone?), I have not found them. labels: 10 ghz, 10ghz, mentoring, microwave communications, nlrs, northern lights radio society, radio organizations, weak signal. These transverters will have the option for a 10Mhz reference. 10 GHZ Transvereter VK3XDK Transverter DEMI 3W Power Amplifier Si4133 Local Oscillator (Own Design) Atmel based Sequencer (Own Design) IF Interface (Own Design). The first three transverters I acquired were the 13cm, 9cm, and 5 cm DEMI versions from N0IO. I put nothing on the RX input of the DB6NT transverter, that part was already broke! In addition, I was sure to also key the DEMI unit on PTT so it was not receiving during the TX condition of the DB6NT unit. 10GHz - [Portable Station] FT290RII / DEMI 10368-144 Transverter / Qualcom Amp 1watt During the fall of 2009 a station upgrade was made to provide a more "systems approach" to how RF switching and sequencing was done on the VHF/UHF/Microwave bands. 1296 MHz Transverter - Right Side Up Simple and Cheap Paul Wade W1GHZ ©2008 [email protected] 7 or 10GHz - and all derivable from a 10MHz frequency reference like a GPSDO so ultra-stable. Is anyone in the process of, or has gone through the process of, assembling a VK3XDK 10GHz transverter system? Are there any issues with them? (I heard that the first batch of XDK 5. Page 4 Microwave and Constructional Projects. Mais d'entrée, ces technique du terme, mais tout au plus, une présentation de cet appareil effectuée après mémoires s'avèrent bien pratiques lors quelques jours fréquence, mode, shift etc. We built a IF selection relay module and an array of relays to switch the T/R for each band. I really mostly just listen on 160m. Υπό κατασκευή. There are some rules to remember :-) First 10GHz EME module did not work well so I took a decision to build all again but on a difrerent way. Back in 2009 I purchased a 10GHz transverter kit from Kuhne Electronic (DB6NT) in Germany. There is no 1/2w linear amp so you'll be at the mW level out of the transverter. Εχει μέσα κάτι ωραία μπιχλιμπιδάκια, ανάμεσα στα οποία δεσπόζει ενα PLL για τους 10. 5 dBNF, Separate TX/RX. Other changes included upgrading the feed lines to half-inch hardline and N connectors on that band. DEMI transverter and a 660mw Qualcom amp. The transceivers are IC910, TS850 or TS2000 with a 432/28 transverter, and an SDR receiver. 10GHz Solid State Power Amplifier project For 2x FLM1011-4 or FLM1011-8 in final stage. 40dBm transmit power from TWT. He demonstrated how you can start with a simple low-cost 10 GHz receiver using a just a. The objective of 10 GHz and Up is for North American amateurs to contact as many amateur stations in as many different locations as possible in North America on bands from 10-GHz through Light. 333 - the DEMI xvtr xtal freq. There are not many microwave enthusiasts in North West Florida, or if there are many (more than me alone?), I have not found them. 3-10GHz only as portable, using a Yaesu FT-817 and various DEMI transverters. For the record, my 10GHz station consists of a converted MITEC data link driving a 3W DEMI PA and a 600mm circular dish. If you ordered a special frequency conversion, it will be listed here. 4GHz DEMI (Down East MIcrowave) transverter, a Model 2401-144. I was not able to take advantage of measuring moon noise as a pointing assistance as there was a local beacon up the band that was getting into my GR-1216 noise meter. It could also be the frequency source for a beacon transmitter for the 2. 10 GHz DEMI 3W PA. Simple 10 GHz SSB/CW Station for the Beginner - Free download as PDF File (. Description. There are some rules to remember :-) First 10GHz EME module did not work well so I took a decision to build all again but on a difrerent way. It can very useful to establish some method of "talk-back". The gear consists of mainly DEMI transverters, along with Toshiba power amps, all mounted on plywood bases. Pour limiter la diffrence de niveau au pied de ces dernires, il est souvent utile de faire un tri concernant IC9 et de garder l'ampli-op donnant le meilleur rsultat. In the end I'll probably talk to the same number of people with both. All voltage in, RF out and reference-in are designed to be accessed from the rear of the board. problem gone. 1296 /144 MHz 25W DEMI transverter £480 23 element Tonna yagi + coax £80 Total cost £560 Total cost £480 Surplus Sky dish and homemade £10 feed Waterproof Box to put it all in £10 Surplus coax relay £10 DB6NT 10GHz transverter £450 G4BAO. 10GHz transverter,10mW output <3. The power was later increased to 55W with a solid state amplifier. DEMI 10GHz transverter Kuhne DB6NT 10GHz transverter Hewlett&Packard 8640B Signal generator Magnum Microwave MC54-PL Mixer + 10GHz brick oscillator, JWM PLL model 5112 og model 1152, ISOTEMP 10MHz ref oscillator, EIP 545 Microwave counter Hewlett&Packard 3586C selective meter Først viser vi nedenfor hvordan en umodifisert 10GHz Kuhne DB6NT. My FLEX-1500 is used primarily as in IF transceiver. TCXO pour TS-590 entre autre La procédure d'installation est dans le manuel utilisateur,. Single Loop DFS Designs I had seen DFS examples - WA1ZMS, G4DDK, WW2R - for locking transverter LOs, presented at our Round Tables. A K3 uses open collector devices so it is active low. -Before year 1995 the only choice was the 10 GHz SSB-Electronic transverter Kits. Hi, Leif, Thanks for the note! I will answer here rather than inline. The “stand in scribeö had to go to Whakatane for some RF work there and decided to make the trip more pleasant and do some ham stops as well as a bit of geocaching. There is no equipment for 10 GHz ready to go, but there are modules and kits available which can be building blocks for a transverter. The transverter is working with a 60 Watts GaAs-FET amplifier stage and a noise figure of 0,65 dB. I had DEMI transverters long before I acquired my K3/10 (and KX3) so have continued to use them. Our new transverter's design (v 2. Microwaves are the frequencies above 1000 MHz More than 99% of the radio amateur frequency allocation is in the microwave bands…. 1296 MHz Transverter – Right Side Up Simple and Cheap Paul Wade W1GHZ ©2008 [email protected] org domain page (Note W1GHZ. Dual Band Transverter. This paper will cover the upgrade of all KK7B, SHF, DEM and DEMI 900 and 1296 MHz transverters by first disabling the original Local Oscillators and integrating the A-32 synthesizer. Joe Barger sent me a CALL3. 10GHz Solid State Power Amplifier project For 2x FLM1011-4 or FLM1011-8 in final stage. I plan to look into better ways of measuring moon noise over. The UK microwave groups 5/10GHz activity contest on July 27, G4DDK had given me a 5Ghz patch antenna which would be easier to use than my 0. I don't really track grids and such but I have worked down to Cuba and out to Texas on 6m and to the Carolinas and Midwest on 2m. It could also be the frequency source for a beacon transmitter for the 2. Power inverter is on its right. Simple 10 GHz SSB/CW Station for the Beginner by Bob Gormley WA5YWC. Screened the plugg better. Single Loop DFS Designs I had seen DFS examples - WA1ZMS, G4DDK, WW2R - for locking transverter LOs, presented at our Round Tables. At the stage that I acquired the device no commercially available boards were available, so I etched up my own complete with a regulated Vdd supply. I have one ordered with my 10ghz transverter. The 144 MHz driving power is approx. 10GHz, 1296MHz, 2012, MAD. Als KPN-er in de vut vanaf 2002 woon ik sindsdien in Belgie zuidelijk van Valkenswaard en heb ook een andere hobby nl het restaureren van oldtimer Alfa Romeo's. He demonstrated how you can start with a simple low-cost 10 GHz receiver using a just a. 30 dB noise figure and 31 dB gain. Four +12V pulsed outputs for driving two microwave relays used to switch VHF/UHF signals between preamplifiers, power amplifiers and microwave equipment as required. Le kit est intéressant pour plusieurs raisons: - dans un seul et même boîtier nous avons un préampli faible bruit et un ampli de 2W, plus bien entendu toute la chaîne du transverter (conversion RX et TX et Oscillateur. 10GHz - [Portable Station] FT290RII / DEMI 10368-144 Transverter / Qualcom Amp 1watt During the fall of 2009 a station upgrade was made to provide a more "systems approach" to how RF switching and sequencing was done on the VHF/UHF/Microwave bands. 01/24/2005 | N5AC Last VHF contest I roved in, I had 6, 2m, and 432 and I decided that I needed some more bands. These may seem expensive at first glance, but we've all found that buying surplus bits and pieces plus test equipment easily adds up to more $$$ before you get on the air!. No more worrying about frequency stability! Shematics:. This transverter is suited for home, hilltop or can be used for roving. -Before year 1995 the only choice was the 10 GHz SSB-Electronic transverter Kits. • 1979: G3JVL waveguide 10 GHz transverter -Tuned circuits in waveguide -378. Recent re-design by DEMI has improved xtal LO frequency stability while the xtal oscillator has excellent phase-noise performance. , L144-28HP is equated to 144 MHz is converted to 28 MHz. org domain page (Note W1GHZ. Et oui, compte tenu de la population équipée sur 10GHz dans mon voisinage, je cherche n'importe quel moyen pour motiver les foules ;-). 1296 MHz Transverter - Right Side Up Simple and Cheap Paul Wade W1GHZ ©2008 [email protected] "The 10Ghz system at KØAWU is a DSS dish with modified DSS feed at 55ft. For the record, my 10GHz station consists of a converted MITEC data link driving a 3W DEMI PA and a 600mm circular dish. Welcome to our Internet Store ! *** TO BUY WITH CONFIDENCE, YOU ARE GETTING PAYPAL PROTECTION ! *** oooooo oooooo. and connectivity to the log periodic (WA5VJB) dish feed. In the early versions that wasn't the case. Dale W4OP. No more worrying about frequency stability! Shematics:. With Q5 Signal High Stability DigiLO synthesizer. Aircraft Scatter Propagation on 10 GHz using JT65C Results of initial Tests over a 624 km Path By Rex Moncur VK7MO and David Smith VK3HZ This is an initial report of. 40dBm transmit power from TWT. The one limitation is the K3 can only control 9 transverter bands so only control through 10GHz is available. This is the 1 mW drive level connection that includes the TTL voltage necessary to switch the transverter T/R function (transmit and receive). , Live Oak, FL 32060 USA Monday-Thursday 10am-6pm Eastern. It is available in both kit form and ready-built versions. 10GHz Transverters at KO4BB. It includes 2. These outputs are only active on 2m and 70 cm bands. Radios included a TM-V7A dual band FM radio, FT-857 for all mode coverage of 6m, 2m and 70cm, a Kenwood 1296 FM HT, an HTX-100 driving a DEMI 222 transverter and a 10GHz tellurometer. Transverter de base : Puissance de sortie 2W et préamplificateur incorporé; le tout complété d'un ampli de 5,5W DEMI et d'un LNA réalisé avec un morceau de platine de Franco Rota (NE32584). I have several antennas ranging from a small 17-dB horn, a large 22-dB horn, and several 18-inch. transverter as this was a high gain device ( 26dB typical @ 10GHz). Photos Sept - 2007: Microwave Demonstration at PNWVHFS Conference in Bend, Oregon - KL7UW & WA6ZKY (Gordy) Measure RF Power: I have a complete 10-GHz portable station comprising of a KX3-2M, DEMI transverter, and a 1-watt Qualcom power amplifier. I really mostly just listen on 160m. I made provision for a MMIC amplifier driver stage with input and output attenuators IF required. Hi, Leif, Thanks for the note! I will answer here rather than inline. 2) offers better performance and some new functions. Mouser offers inventory, pricing, & datasheets for Qorvo 9 GHz to 10 GHz RF Amplifier. With Q5 Signal High Stability DigiLO synthesizer. If you are unsure of the options installed, or find they are incorrect to interface your 2M IF rig, please consult the enclosed DEM-TC document for modifications. It would provide me with a southern horizon for the first time. The gear is "jointly" owned by Jimmy Long, W4ZRZ and Bill, with each contributing parts to the cause. Page 4 Microwave and Constructional Projects. Εχει μέσα κάτι ωραία μπιχλιμπιδάκια, ανάμεσα στα οποία δεσπόζει ενα PLL για τους 10. configuration. A transverter is the way to go. The transverter board itself was fairly easy to put together. Bill Capps, AF4OD has decided to forego the microwave effort for the June contests, and agreed to loan me his microwave rover set-up for my first ever attempt at roving. 4GHz model running similtaneously from one synth board. Gray box beneath the dish contains DEMI 2W PA (built from a kit), 10MHz OCXO, sequencer and some additional circuitry. This low level RF is used to drive the EME TWTA. Search the history of over 384 billion web pages on the Internet. I was messing about on 10GHz and I wanted to get my FT-817 (the IF drive for the 10GHz transverter) to "beacon". Jeg har en DEMI (Down East Micro Wave, Inc. The MOASU was designed to work off a PC parallel port which is active high. 10GHz transverter, 3W output <1. It contains some unique features, such as an LED output power meter, a temperature-controlled cooling fan for the PA unit, ALC feedback to the driving radio, a. 10GHz DEMI transverter, but will work equally well on all DEMI transverters using the MicoLO board. Microwave Engineering Project Microwave Engineering Project Transverter Research DocumentTransverter Research Document 4 September 2008 W5NYV, KC8SVT Transverter Output/IF Bandwidth Source Price 3456-144 3456MHz/144MHz DEMI Estimates 20MHz Down East Microwave 3456 MHz transverter assembled, 1W, <2dBNF, 144 MHz IF, Separate TX/RX ports. VK3NX 47 GHz Gear Following on from last month's report, Charlie VK3NX submitted some photos of the. 10GHz - [Portable Station] FT290RII / DEMI 10368-144 Transverter / Qualcom Amp 1watt During the fall of 2009 a station upgrade was made to provide a more "systems approach" to how RF switching and sequencing was done on the VHF/UHF/Microwave bands. The UK microwave groups 5/10GHz activity contest on July 27, G4DDK had given me a 5Ghz patch antenna which would be easier to use than my 0. The IF frequency is 50 MHz for an RF frequency of 10,368. Les transverters que notre ami Patrick F1JGP a conçu sont relativement simple a fabriquer, et ses documentations sont très complètes. Description du kit dans le catalogue. I plan to look into better ways of measuring moon noise over. 10GHz transverter, 3W output <1. It could also be the frequency source for a beacon transmitter for the 2. TXT file that he made up that works. The transceivers are IC910, TS850 or TS2000 with a 432/28 transverter, and an SDR receiver. VK3NX 47 GHz Gear Following on from last month's report, Charlie VK3NX submitted some photos of the. 01/24/2005 | N5AC Last VHF contest I roved in, I had 6, 2m, and 432 and I decided that I needed some more bands. Amateur Microwave Communications. 10GHz on the Cheap. The transverter is working with a 60 Watts GaAs-FET amplifier stage and a noise figure of 0,65 dB. 29 July 2011. I've noticed these transverters seem to have all sorts of problems. Welcome to our Internet Store ! *** TO BUY WITH CONFIDENCE, YOU ARE GETTING PAYPAL PROTECTION ! *** oooooo oooooo. 10MHz GPS Disciplined Oscillator and NTP Server Given that most modern transceivers today are available with a built-in TCXO module I was sceptical about the need to have a 10MHz GPSDO (GPS Disciplined Oscillator) as part of the equipment in my shack. 667MHz can be doubled to 189. Input power is -20dbm but can easily be changed to max 5W of 28MHz. We built a IF selection relay module and an array of relays to switch the T/R for each band. -20dbm is the output of the transverter port on the ICOM Pro2/Pro3 transceivers and probably the newer ones too. DEMI transverters are designed for the high performance, weak signal enthusiast. net The Multiband Microwave Transverter scheme included 1296 MHz with high-side LO injection, to take advantage of the common local oscillator at 720 MHz. I attached a copy to this email for you to see, and another called 'CALL3NEW. 4GHz model running similtaneously from one synth board. Power inverter is on its right. The transverter shown here runs on 12v (but it does need 36 amps), and is a hybrid using a DB6NT 1w mini-transverter driving the 100w "brick" amplifier shown in the previous article. Presented to Socorro Amateur Radio Association May 11, 2016 DEMI 902 Transverter W7QQ with 3W on 10GHz to 24" dish. For advanced constructors due to the small SMD components that are used. VK3NX 47 GHz Gear Following on from last month's report, Charlie VK3NX submitted some photos of the. 10GHz, 1296MHz, 2012, MAD. Hi that Test result whit set to 116Mhz LO for VHF Demi transverter (116 + 28 = 144Mhz) whit Clock divider enable the low pass filter was a must lot of harmonic content since signal was square and have overshoot on it since i not put the right matching cap for fit 50ohm 16pF vs 450pF but that work. 7GHz PCBs were manufactured incorrectly, and had problems) What is the 10GHz kit documentation like? What is the 10GHz kit performance like?. Silver plated cavity filters are used throughout and IF switching is built in. The transverter is working with a 100 Watts GaAs-FET amplifier stage and a noise figure of 0,65 dB. Please refer to the 23cm ( 1296MHz ) Transverter Webpage and 23cm Block Diagram which will explain in more detail what is required to construct a complete Transverter. I have several antennas ranging from a small 17-dB horn, a large 22-dB horn, and several 18-inch. php on line 8. Dale W4OP. Clint's 10 GHz transverter is assembled mostly from modified parts, using a commercial diode-ring mixer, a re-tuned interdigital bandpass filter, a modified "brick" oscillator and a 5 MHz oven-controlled oscillator, a pair of SMA relays, and a DEMI 2-watt power amplifier from a kit, and a military surplus GaAsFET microwave preamp. (The +12V is delivered on PTT condition) I also put a dummy load on the DEMI transverter TX output just to be safe. It's only 3/4 of a Watt into an antenna under the house at the moment, running UView32 gating eveything in a 500 km radius to 439. 4GHz DEMI Transverter Local Oscillator. When the 5/10ghz geostationary satellite goes I will hopefully be ready! Click to expand. This transverter employs the latest advanced SHF techniques such as silver plated cavity resonators, Ceramic printed circut boards and the latest SMD devices. transverter housed in ONE module. The equipment comprised of a FT817 for the 144MHz IF and a DEMI (downeast microwave inc) transverter running around 8 watts of power to a 450mm dish mounted on a tripod and aimed towards Tasmania through the Perspex window of the hut. Let me know what you have with details, pix if possible and asking price. 10GHz Transverters at KO4BB. Raw PCB material RO5870-0,5mm-17µCU (180x90mm) with photoresist, was obtained from DC3XY. VK3NX 47 GHz Gear Following on from last month’s report, Charlie VK3NX submitted some photos of the. This results in tuning that is backwards, tuning down from 144 MHz, and reversed sidebands. No more worrying about frequency stability! Shematics:. 10GHz EME station - the DEMI transverter has a frequency offset and has temperature variations • GPS locking to Z3801A will eliminate these problems • A DFS at 94. The “stand in scribeö had to go to Whakatane for some RF work there and decided to make the trip more pleasant and do some ham stops as well as a bit of geocaching. (The +12V is delivered on PTT condition) I also put a dummy load on the DEMI transverter TX output just to be safe. • Cree CMPA601C025F 6-12GHz 46. 5 dBNF, Separate TX/RX. problem gone. But I'll have learned a significant amount with that 3cm transverter and I'm sure will have met up with new experimenters along with way. The MOASU was designed to work off a PC parallel port which is active high. 7, and 10ghz. 10GHz DEMI transverter, but will work equally well on all DEMI transverters using the MicoLO board. Just add an output relay such as our SR-2, a 10GHz. You can use a 28-MHz IF but 144 or 432 is better for easier filtering of image and harmonics. 2320 MHz kit DEMI + ampli DB6NT 7W (2320 et 2400 bande satellites OM), 10 GHz à partir de modules Qualcomm 1W et préampli NF 1,3 dB. This transverter employs the latest advanced SHF techniques such as silver plated cavity resonators, Ceramic printed circut boards and the latest SMD devices. Warning: chmod() has been disabled for security reasons in /home/fgslogis/public_html/u8n/fajqxymrgijj. My FLEX-1500 is used primarily as in IF transceiver. 333 – the DEMI xvtr xtal freq. Simple 10 GHz SSB/CW Station for the Beginner by Bob Gormley WA5YWC. W1ghz 10 Ghz Transverter. In the early versions that wasn't the case. Pour limiter la diffrence de niveau au pied de ces dernires, il est souvent utile de faire un tri concernant IC9 et de garder l'ampli-op donnant le meilleur rsultat. DEMI Part Number Verification: All DEMI VHF/UHF transverters contain the operating frequency within the part number, i. By rewiring the input to the PC847 optical coupler, the K3 will control the MOASU just fine. 432 will be on K9BTW’s IC7000 and a single 19 element 432 boomer. d'utilisation. 350GHz of Gunn TX = 350MHz IF, easily received with a scanner receiver. The 144 MHz driving power is approx. Temperatures were much more mild, only reaching 104F! During the entire contest the frequency stability was better than 100Hz at 10GHz. Transverter PC Board ONLY. transverters providing a “New Life” to the hobby, it was only natural to address the issue with the lower and sometimes more popular frequency transverters. AF4JF built his 10GHz portable station around 10mW DEMI transverter. Description du kit dans le catalogue.