8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier A Big Power Supply for SSPAs Low Pass Filter/Dual Directional Detector Sampling RF Power LED Bar Graph Meter Amplifier Control Board High power amplifier for 1296. In the 1/2012 issue of Dubus magazine, F5FLN showcased his KW amplifier for the 70cm band. Mar 6, 2023 · Combiner set power hf high mhz amplifiers coupler combine w6pql. However most people stack to get more On 4/28/2017 11:00 PM, Ken K6MR wrote: I bought the combiner/splitter assemblies made by W6PQL for my dual KPA500 project. Increased fan current handling - this one can handle fan currents up to several amps. Tube 1 - 7289 #1. • Significant Improvements made over W6PQL designs • Best power output is 320W with 13. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier A Big Power Supply for SSPAs Low Pass Filter/Dual Directional Detector Sampling RF Power LED Bar Graph Meter Amplifier Control Board 13cm Signal Generator. Stacking horizontally results in a narrower beamwidth in the horizontal or “E “plane of a horizontally polarisedYagi. The widest lead on the GaasFet is positioned to the upper right. Jim Klitzing, W6PQL . I purchased most [1] of the boards in kit form, rather than pre-Figure 2 — Amplifier rear panel. Efficiency is over 70%; 50v at 28a, or 1400w DC input. In the radio's menu system, the external LNA is set to 'on' and the transmission delay set to 30ms. W6PQL recommends adding a fan if the low-pass filter is used at power levels higher than 500 W. Upon switching back to receive, these events Under those conditions the amplifier can operate continuously at 125-150w output. I built this 4-module 100w amplifier assembly to be used as a component in a high-power portable transverter, intending to use it in a rover setup for contesting. -----FromW6PQL: Relay boards (for TX/RX switching). Make use of all our tools: edit, split PDFs, merge multiple PDFs into one, rearrange pages, and more. PTT (event 1 through the sequencer) will override this control, keeping In the 1/2012 issue of Dubus magazine, F5FLN showcased his KW amplifier for the 70cm band. click any of the thumbnails below for enlargements The 23 cm amplifier pictured here delivers more than 300 watts with 10 watts drive. I chose to build the modules along with items that did not require alignment: LPF, directional couplers, etc. 6 and 1. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW Wilkinson combiner performance (isolation) MRFE6VP61K25H Or BLF578XR Or BLF188XR 4 to 1 Transformer 25z coax Wound through 2 Laird cores p/n 28B0375-000 10 1uf 50 On 4/28/2017 11:00 PM, Ken K6MR wrote: I bought the combiner/splitter assemblies made by W6PQL for my dual KPA500 project. he method of construction de- scribed here can be used on most UHF Yagis, and is especially useful for the 70, 33 and 23 cm bands. This last 32” replaced the common mode choke previously used, and was installed in a small, neat coil. I've added a small fan as I intend to run 1000 W through the filter. I’m just too lazy to take on a project like that. one. 70Mhz Drive Output 1W 110W Over 600W from 1. Rated for SSB/CW/WSJT modes. Each transistor has it's own bias adjustment. K. This close-up shows proper component placement for L band. Plans call for a combination of the M2 Orion 2800G2 and MT3000A rotators to be used along with a Green Heron RT-21 Az/El Rotator Controller to provide computer-controlled tracking of the moon. Once you’ve uploaded all your files, make sure they are 100w 23cm "brick". 55915, W 121. COM (input relay board) PC boards • Communications Concepts • RFHAM • WWW. The two radios it was designed for are the Yaesu FT-817 and Flex 6500. com) - Tohtsu, Dow Key • Surplus Sales of Nebraska - Tohtsu, Dow Key • EBay • WWW. 8-54 MHz A 1. Additional current capacity from the on-board 12v regulator - now up to 500ma is available. A 1. 7nh and C1 to 3. 8 to 54 MHz combiner set. Internal fans, swr protection, alc circuit and LNA switching. For 13cm, changing L1 to 2. 5. PDFChef offers a free PDF combiner for both personal and commercial use. It should be noted the length of the two coax jumpers from the RF decks to the combiner were 7” The 9700 controls both the switching and sequencing of the LNA. This next picture shows the output pulse driving a high-power Dow-Key latching transfer 1. SWR lockout. I like to use the basic DL6WU wideband Yagi designs W6PQL Ultimate Amplifier Control Board v6. A die-cast aluminum box, 2 connectors, aluminum spacers and 6-32 hardware are all that is required. assembled. Here's another 1268 MHz filter, but on FR4. This switch box was built to allow the use of 2 different radios to be used with 3 different transverters. rfparts. PRF/MRF13750 1296MHz power amplifier; 6-7w in for 600w + output, 50v @ about 22amps. Feeds for panel indicator LEDs, which we all love to put on the front 1. However, if you want to lengthen the pulse to 100ms or so, R5 and R6 can be changed to 10k. Usually, only one or two of the input trimming pads were needed with IDQ set between 1. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier A Big Power Supply for SSPAs Low Pass Filter/Dual Directional Detector Sampling RF Power LED Bar Graph Meter Amplifier Control Board It has a built-in sequencer and low-loss Dow-Key antenna transfer switch. Looking inside from the side, the heavy lifting is done on top of the heat sink, where the two rf decks, output combiner, fet switches and input attenuator are located. From W6PQL: Input attenuator kit (13 dB pad) to allow 50watts in for full output (instead of 3 watts for full power which is way too risky) The downside of the 13 dB Pad is a lot of heat dumped into the heatsink when running digitial or AM modes. Microsoft Word - generation 2 - v2. RFHAM is currently offering board kits for these 500w amplifier units, which contain the more difficult-to-get parts Transverter Selector. The oscillator side of the board is shown on the left, and the oven controller side on the right. Effortlessly Merge Images Online in Seconds. Jun 20, 2019 · For TRASE MRI requiring power greater than 1 kW, high-power combiner circuits are currently available for the W6PQL amplifier deck and may be integrated into the TRASE amplifier . 7 amps and gave it the smoke test. I've actually driven it to 400w+. The circuit is built around the National Semiconductor LM2585, and uses the energy stored in an inductor to boost the 12v to 28. To start, hit the “UPLOAD FILES” button and upload up to 20 PDFs. 8 to 54 MHz Dual Directional Detector. This amp has two blf188xr modules so it will loaf at legal limit. On the oven side, the temperature sensor (R12B) and the heater resistors are located near the crystal. click a picture to enlarge. Only 500mw drive is needed for 100w out300mw would be enough if The results were just as amazing, with the device performing very much as it did on 2 meters; the only real difference was slightly lower gain, about 23 to 24 db instead of 27 db for the 2m version. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier A Big Power Supply for SSPAs Low Pass Filter/Dual Directional Detector Sampling RF Power LED Bar Graph Meter Amplifier Control Board This leaves a total of 45 amps more available at any of the 3 outputs. 8MHz to 54MHz, 450W at 70MHz 24dB typical gain, needs less than 5W drive High efficiency, typical draw 20A @ 44V. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier A Big Power Supply for SSPAs Low Pass Filter/Dual Directional Detector Sampling RF Power LED Bar Graph Meter Amplifier Control Board 600w 23cm RF deck basic kit, $145. 5 KW LPF for 160-6m. 102mm x 58mm. 500w 70cm Amplifier. I needed to add an additional Fan just for the Pad. 99260, CM97an - former call: WB6MYC. This one is capable of 1500w in all modes, including the more demanding digital modes (JT65 and others) used for EME. A Big Power Supply for SSPAs. Our online image joiner makes it super easy to combine images into one. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW I bought the combiner/splitter assemblies made by W6PQL for my dual KPA500 project. Bench test results @ 1296. Designed for home station use, it's compact internal switching power supply runs on standard AC power, selectable for 120v or 230v, 50-60 Hz. IQ Combiner 4. First licensed in 1964; assigned W6PQL in 2003, which was the call first issued to my late father in 1938. Note: This kit does not include BR breakers. Instructions for setting up an FT991 for digital modes using WSJT-X. Un-grounding this port turns the switch back off. Note the position of the shorting jumpers; about 2. Home. 600w 23cm RF deck basic kit, $145. Remote LNA Controller (for handling mast-mounted LNAs) Description: Here is the all new custom 2 Meter Kilowatt Linear Amplifier built and designed by Jim/W6PQL. 8-54 MHz Kilowatt RF Deck, kit or assembled/tested (if building from the basic kit, the items in the indented sub-list will also be needed) Machined copper spreader, if ordering the basic kit. Current at this port is only 5ma. 120w 13 cm Amplifier. Here are all the changes made since the original 1. Warm air is exhausted through 8 holes on the front panel. Email: Login required to view. Pulse width is about 50 ms. The transceiver switch (s1) selects the radio, and switches RF, key line, and ALC feedback. 13cm Transverter. These are per-band settings, and this connection scheme can be used on any of the 3 bands mentioned; here are the sequence of events: Radio is receiving. W6PQL. Given the power limitations of the Hybrid combiner used with the patch feed to generate circular polarity I'd call 2. Price excl VAT: £ 83. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier A Big Power Supply for SSPAs Low Pass Filter/Dual Directional Detector Sampling RF Power LED Bar Graph Meter Amplifier Control Board Current Projects. I like to use the basic DL6WU wideband Yagi designs On 4/28/2017 11:00 PM, Ken K6MR wrote: I bought the combiner/splitter assemblies made by W6PQL for my dual KPA500 project. Figure 3 — Amplifier with front panel tilted down. Latest version. Detail. The low pass filter is mounted vertically in front of the heat sink in the air stream of the fans located at the back. Designed to provide all control funstions of a solid state amplifier. N 37. It's water-cooled, thermally stable, and very smooth-tuning. The 23 cm amplifier pictured here delivers more than 300 watts with 10 watts drive. 1KW 70cm LDMOS Amplifier. Here's a killer 1296 rover setup --- a small (FT-817) I. I’ll be describing the Oct 21, 2019 · A pair of 4-port power combiners will be used to combine the H and V polarities of the four antennas into a pair of H and V feedline connections. Uses a single 50v LDMOS transistor made by Freescale Semiconductor, the MRFE6VP61K25H. Hello, it is possible to combine the output of two or more RF amplifiers to increase the output power? Rating: 2016-12-24. After making various adjustments to the original LPF filter configuration and noting some of the changes which could be made to the board to make it easier to construct, tune, and re-configure (if necessary), I decided to modify the board layout itself. 8 amps. Log a NEW contact with : 11078019 Last modified: 2021-01-17 03:47:01, 830 bytes. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier A Big Power Supply for SSPAs Low Pass Filter/Dual Directional Detector Sampling RF Power LED Bar Graph Meter Amplifier Control Board Relay Sequencer. 33. Combiner to first sensor is the first 10” of this 42, then from sensor to filter is another 32”. Automatic Transverter Interface. The youngest 2C39/7289 tubes are 26 years old now, and even with unused ones, there is quite a variation in performance (see test data below). 7 watts drive for 300 watts out optimal. Combiner divider splitter rf way mhz tower 2700 power air802 bolt pim low wall mountable mounting inserted shown bandCombiner broadband splitter combinador ibscomponents Dual band combiner rf power splitter combiner , broadband powerRf power divider. It includes a TR switch, relay sequencer, and all controls necessary to operate the amplifier safely and reliably. In some applications, such as interference from or to points off to one side or below the main lobe, the reduction in beam width is a more important consideration than the gain increase. Published in QST magazine (August 2006). Title. The dump port on the output coupler is terminated with a 125w chip resistor (shown at upper left). Onboard sensors for supply voltage, instantaneous current draw, heatsink temperature, forward and reflected RF power, drive RF power Connectors for a separate Low Pass Filter bank Compact size, PCB is just 190x100mm Can be set up to take up to 100W drive NXP Under those conditions the amplifier can operate continuously at 125-150w output. 1 KW 2M LDMOS Amplifier. NXP MRF13750H LDMOS, $225. The service contains no ads and does not require user registration or email verification. 100w 23cm Transverter. Click here for a parts layout photo. The filter pictured is a 3-pole, and uses BNC connectors, but SMA connectors have also been used in both designs, and are actually preferred at 23cm. 5 KW LPF for 160-6m 1. • No Boards will be produced, however those interested can contact Darrell VE1ALQ for Drawing and Gerber files needed to get boards produced. Even a low power (2w) transverter will still produce At 1296, it's only down an additional half a db from center. The fan is sitting on the rear panel and blows cold air into the cabinet. 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. 1 KW 6 Meter LDMOS Amplifier. Instructions for setting up an IC-9700 for WSJT-X and WSJT-10. Comments? email to. The amp pallets look like they are the same high quality. To operate the switch, all that is required is grounding the 'on' port. The second amplifier on the right uses two 1kw RF decks with a combiner, a larger heat sink and a more ruggedized LPF. Power splitter and combiner are G10 circuit board type. Our tool above can combine two or even up to 20 PDFs for you. The controller, FET switches, low pass filter, antenna relays and bar graph indicator is from W6PQL. 60w 23 cm Amplifier. LDMOS transistor, if ordering the basic kit. Event 3 - 50 milliseconds after event 2, enable RF output from the driver. The 9700 controls both the switching and sequencing of the LNA. U1 can amplify the input TX level by 20 db at 28 MHz, and 1 db gain compression is 30 milliwatts; it can produce up to 10 U102 can be connected to a sensor, typically a thermistor mounted on the heat sink of the amplifier. This kit includes the PCB. Click any thumbnail for an enlarged picture. Home High power amplifier for 1296 1 KW SSPA for 1. Simply choose a layout you like, drag and drop the images you want to put together, and our tool automatically aligns and adjusts the images to fit the chosen layout. Improved MRF286 Power Amp for 1296 MHz Summary. A high-VSWR sensor will lock out and bypass the amplifier if it senses a load VSWR greater that 2/1 (internally adjustable). Most latching relays lock up properly after only 20ms, so this is plenty of time to get the job done. Only 500mw drive is needed for 100w out300mw would be enough if W6PQL treats us to a detailed photo essay on how he builds his well-designed UHF Yagi antennas. 23cm Double Quad. It has it's own integrated input/output branchline hybrid couplers, and an output sampling coupler (for ALC feedback or power indication). Fully Assembed and tested. This one has higher insertion loss, and is a bit broader; +- 1db from 1220-1300MHz, and +-3db 1200-1320MHz before falling off. Hobbies other than amateur radio include wine making, precision shooting, golf and tennis. Resistor R5 is not used on this band. Fan data Sunon, 50 mm x 50 mm x 10 mm, MB50101V2 Current Projects. F. 2KW W6PQL HF Amplifier. High power amplifier for 1296. This one (on Ro3006) is optimized for 1296, yet will still work well for L. 2 Meter 80W All Mode Amplifier. I make all my antennas with hand tools, hardware store aluminum and a simple common-sense process. Once the temp is below this level, U102 shuts off the fan. Tube prep and notes. You will also need the copper heat spreader (available on the right) and the MRF13750 LDMOS to duplicate the complete RF deck listed above this kit. 8 and 28v outputs, it only has 45 amps left to contribute. 1 KW SSPA for 1. 5 dB gain and a DC power efficiency of 58%. 100w 23cm "brick". R105 sets the trigger temperature to start the fan, and I usually set this for a heat sink temperature of 100f. Blank board only for the 600w 23cm amplifier, $45. 1. The two parameters affecting the input match were IDQ and trimming pads. No editing skills or complicated software needed. 3 days ago · Login is required for additional detail. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier A Big Power Supply for SSPAs Low Pass Filter/Dual Directional Detector Sampling RF Power LED Bar Graph Meter Amplifier Control Board . The future RF amplifier will contain a dedicated diplexer which will filter the RF output and dump harmonic energy to a built-in load. The IQ Combiner 4 with integrated IQ Gateway consolidates interconnection equipment into a single enclosure, providing a consistent, prewired solution for Enphase Energy Systems. Mar 20, 2018 · While making the IDQ setting at 50V VDD, the input match is observed with a scalar analyzer and optimized at 1296 MHz (where most of us will be using this). With as little as 2 watts in you can have over 1000 watts out. Output voltage can be varied by adjusting the ratio of resistor values on the feedback pin. Here's some background info on the individual amplifier boards and couplers. flow-solder service for LDMOS, if needed. This makes it an ideal match for most of the 10w radios in use today. Still, it only takes about 4w to drive this one to 1kw out on 222 MHz. It was published in Dubus magazine, and looked like a worthwhile project. Power requirements for the OCXO are 8 or 9v regulated at 50 to 250ma (it draws about 100 ma when the oven reaches operating temperature). The reason for this is because the very bottom power supply must contribute to each output; it's capacity is 60 amps, so if it is already contributing 15 amps between the 13. This next picture shows the output pulse driving a high-power Dow-Key latching transfer N 37. 33cm filter. Oct 30, 2020 · This morning I completed the amp, based on a W6PQL 600w pallet, set the idle 50 VDC VDD to 1. Crystal Oven Controller. Water cooling is required at these power levels. Remote LNA Controller (for handling mast-mounted LNAs) Event 1 - While holding off RF output from the driver, switch the antenna relays over, and turn on the cooling fan (s) Event 2 - 50 milliseconds after event 1, turn on amplifier bias and/or enable main power to the amplifier. I ordered the SSPA, LPF, control board, and two of the dual direction detectors (SWR boards) as kits. This is an easy way to bring multiple PDFs together into one. click any of the thumbnails below for enlargements The first thing we need to do is set the transmitter output to a useful level. However, if you have one of the QRP 5w or 10w radios, this attenuator can be bypassed via rear-panel jumpers. 8 to 54 MHz Dual Directional Detector 1. 00. I also purchased as complete assemblies, the input and output 1. COM 100w 23cm Transverter. W6PQL 12 More Critical Parts Relays and transfer switches • RFPARTS ( www. Bias, Fan, ALC, full sequencing. Nestled in the amplifier stack in the station, this amplifier uses the new MRF13750 50v LDMOS device, and easily produces 600 watts on 1296 MHz, requiring a maximum of only 10w drive. Building UHF Antennas. Time Owned: more than 12 months. 8-54 MHz. This boost regulator is for those times when you have a 28v relay, but want to use it with a 12v source. High quality boards and they work great. Upon switching back to receive, these events Here's a close-up of one of the prototype amplifier boards. The children are all grown up now, on their own, and doing O. This method of construction can be used on most UHF through "low" microwave Yagis, and is especially useful for the 33, 23 and 13 cm bands; These antennas were made with this process, and tested on this back-yard antenna range. It offers up to four 2-pole input circuits and an Eaton BR series busbar assembly. For the newer 65v LDMOS amplifiers, I added a higher voltage version of this switch to the parts page, capable of handling up to 80v at 50 amps (this switch uses a 100v device). This amplifier combines a pair of 500w RF decks, using input and output couplers; the device used is the 600w Freescale MRFE6VP5600H. Most transverters require a minimum of 1 milliwatt for full output, and some radios don't quite have this much from their transverter ports. radio driving a 100w transverter with a 1db nf front end. A couple of years ago, F5FLN described a 6 meter KW amplifier he built modeled after the Freescale MRFE6VP61K25H reference design for an 88-108MHz FM amplifier. in stock. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier A Big Power Supply for SSPAs Low Pass Filter/Dual Directional Detector Sampling RF Power LED Bar Graph Meter Amplifier Control Board The ability to completely lock out the main power to an amplifier under high-VSWR conditions. 5mm from the source leads. Ham Member Lookups: 39567. Logbook. RFHAM is currently offering board kits for these 500w amplifier units, which contain the more difficult-to-get parts 1. docx. In my own case, this is more than enough A filter can be constructed for about $10 in parts. Biography. 9pf gets the job done nicely. A Very High Power Amplifier for 1296. Over temp lockout. O. Event 1 - While holding off RF output from the driver, switch the antenna relays over, and turn on the cooling fan (s) Event 2 - 50 milliseconds after event 1, turn on amplifier bias and/or enable main power to the amplifier. 1 KW 222 MHz LDMOS Amplifier. Free. board spacer set, if ordering the basic kit. service at 1268. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier A Big Power Supply for SSPAs Low Pass Filter/Dual Directional Detector Sampling RF Power LED Bar Graph Meter Amplifier Control Board 1. Conversely, you can drag and drop your PDFs to the area that says “Drop Your Files Here”. yxhvozijgsdodivgouxy