W6pql 23cm amplifier

55915, W 121. io. K. 160-6 Meters. Upon switching back to receive, these events 120w 13 cm Amplifier. Here's how it works: Q3 is normally on during closure of PTT (transmit), and supplies power to the sequencer timer. A configurable input attenuator capable of matching any driver ranging from 50 milliwatts to 10 watts. 8 to 54 MHz combiner set. I've actually driven it to 400w+. 5 KW LPF for 160-6m 1. This item is in the category "Telefony i Akcesoria\Radiokomunikacja\Krótkofalarstwo\Wzmacniacze krótkofalarskie". Event 3 - 50 milliseconds after event 2, enable RF output from the driver. 23cm Signal Generator 23cm Double Quad 23cm filters 13cm filter 13cm Signal Generator 13cm Transverter 120w 13 cm Amplifier 600w+ 33cm Amplifier 300w 33cm Amplifier 33cm filter 33 cm Crystal Source 33cm Signal Generator 9cm Transverter Transverter Selector 12 AND 28 volts Klitzing Amplifiers IC-910H tweaks Audio Files Parts I Can Supply Current Different inductor values are also used. board spacer set, if ordering the basic kit. radio driving a 100w transverter with a 1db nf front end. It has a 1 KHz modulator, and a variable-level amplifier (-20 dbm to 3 watts), making it suitable as a source for antenna range measurements, which was it's design intent. click any of the thumbnails below for enlargements mrf1k50 ldmos. Freescale Semiconductor's recent offerings of 1. PA 23cm 1296 MHz MRFE6S9160 150 Watt. The NXP BLF184xr is another LDMOS device that can be used with this board. flow-solder service for LDMOS, if needed. Uses a single 50v LDMOS transistor made by Freescale Semiconductor, the MRFE6VP61K25H. Automatic Transverter Interface. 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. 600w 23cm LDMOS Amplifier. 60w 23 cm Amplifier. 100w 23cm "brick". 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 On 23cm, an amplifier using just one ‘286’ can be driven into saturation with as little as 3 or 4 watts, and a pair with less than 10, making that last configuration a close match for many of the 10w radios in use today. 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. When used with two of the 1kw RF decks (1. 5 KW LPF for 160-6m. This one has higher insertion loss, and is a bit broader; +- 1db from 1220-1300MHz, and +-3db 1200-1320MHz before falling off. 8v preamplifier supply on receive. Caution: This RF deck looks easy to construct, and it can be, but if you do not have extensive experience working with surface mount parts on high power SSPA's at 23cm, your results can vary widely. you need to transmit the strongest signal possible to have any chance of anyone detecting your Moon echos. It combines two 150 watt boards using 3db hybrid couplers. 5 - 10 watts for drive, it'll be used for SSB, CW & data. Additional details can be seen in the write up of the 70cm KW amplifier. 23cm power amplifier kit. RF HAMDESIGN. The 23 cm amplifier pictured here delivers more than 300 watts with 10 watts drive. Resistor R5 is not used on this band. 99260, CM97an - former call: WB6MYC. N 37. Like the W6PQL design, the PE1RKI (Bert Modderman) amp uses a pair of XRF-286 transistors, but comes fully assembled and tested AND worked out cheaper (Dec 2012) than stuffing around building your own. Rated for SSB/CW/WSJT modes. On the web, one can also find amplifier designs On 23cm, an amplifier using just one ‘286’ can be driven into saturation with as little as 3 or 4 watts, and a pair with less than 10, making that last configuration a close match for many of the 10w radios in use today. 5mm from the source leads. 8 to 54 MHz), the result is an amplifier that will just loaf along at 1500w with lots of headroom. 8 to 54 MHz Dual Directional Detector 1. New Reply Threaded Mode. And how it fits into the station amplifier stack: And finally, the newest NXP offering, the MRFX1K80H, a 65V LDMOS capable of output in excess of 1800w. For those who want to be able to combine amplifiers to get to the legal limit, the coupler set shown here will get you there easily. Upon switching back to receive, these events 1. O. an output low-pass filter to comply with FCC regulations for harmonic and spurious suppression. To operate the switch, all that is required is grounding the 'on' port. 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. Note the position of the shorting jumpers; about 2. 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 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. Reinstall the UX-910 23cm module. Here's a close-up of one of the prototype amplifier boards. 300w 23cm Amplifier. 5 KW Low Pass Filter for 160-6 Meters. 1 KW SSPA for 1. Here's some background info on the individual amplifier boards and couplers. 150W 23CM Turn-Key Amplifier. Efficiency is over 70%; 50v at 28a, or 1400w DC input. 8-54 MHz A 1. ZL3RC Member. 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. PTT (event 1 through the sequencer) will override this control, keeping Simple Schematic. 2KW W6PQL HF Amplifier. Comments? email to. MKU PA 23CM-250W CU, Power Amplifier. Amplifier. Paul's design work and implementation is amazing, my bet is that it will allow many more folks to play 23cm EME going forward. Oct 30, 2020 · The key part of the project - the small W2HRO folding dish antenna with patch feed has shipped. Prior to the appearance of the GS-15B, most power amplifiers on 23 cm were using the venerable 2C39/7289, pressing the A configurable input attenuator capable of matching any driver ranging from 50 milliwatts to 10 watts. Turn the radio on. 23cm amp development at W6PQL. A 28V switch-mode power supply is used to power the amplifier. The item "23cm Power Amplifier SSPA 160W XRF286 MRF286 pcb from VE1ALQ W6PQL DF9IC 1296MHz" is in sale since Saturday, July 14, 2018. This RA-SHF Kit is suitable for use with the RA18H1213G Mitsubishi RA series module to produce up to 18 Watts output on the 23cm 1240 to 1300MHz band. Input power required for 300w out is about 25w. The BFG591 has an Ft of 7 GHz and at 23cm I should easily be able to get 500 mW RF from it. This SSPA is the most powerful Solid State Power Amplifier (SSPA) that I have ever attempted to build, and at the heart of my EME station. RFHAM is currently offering board kits for these 500w amplifier units, which contain the more difficult-to-get parts Improved MRF286 Power Amp for 1296 MHz Summary. Adjust R61 for max receiver gain on 430. 600W 1296 Mhz 23cm 50v MRF13750 based RF amplifier. click the thumbnail pictures for enlargements or more details. 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 For those who want to be able to combine amplifiers to get to the legal limit, the coupler set shown here will get you there easily. NXP MRF13750H LDMOS, $225. 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). Feb 19, 2014 · After discounting a W6PQL based kit, a PE1RKI 23cm 150W Power Amplifier was decided upon. Power Amp. 00. 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. It has a built-in sequencer and low-loss Dow-Key antenna transfer switch. 7nh and C1 to 3. A 4-port transfer relay is used to switch the amplifier in to the transmit path. Supply voltage needed is 26-28v @ 23a. Looking for suggestions of built / ready to run units. pdf. R105 sets the trigger temperature to start the fan, and I usually set this for a heat sink temperature of 100f. Options. The top one, shown with it's 100 ohm 500w isolation resistor (positioned There is an additional description of a sequencer in the 300w 23cm amplifier article listed on the left. This tube is modern, rugged, inexpensive and plen-tiful at the time of this writing. I made the couplers using FR4 on the input, and . I chose to build the modules along with items that did not require alignment: LPF, directional couplers, etc. w6pql. RFHAM is currently offering board kits for these 500w amplifier units, which contain the more difficult-to-get parts 120w 13 cm Amplifier. It requires 8W of drive for 150W out. 8-54 MHz. With as little as 2 watts in you can have over 1000 watts out. RF-sensing t/r switch for remote operation, as well as a hard-key option. The sequencer protects those expensive RF relays from damage. RA-SHF 23cm 1. 4 Volt. Subject: [UKMicrowaves] 23cm amp. 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 This close-up shows proper component placement for L band. Update (20 March 2018); assembled/tested RF decks, basic kits, and complete turn-key amplifiers are now available for shipment. 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 High power amplifier for 1296 1 KW SSPA for 1. First licensed in 1964; assigned W6PQL in 2003, which was the call first issued to my late father in 1938. 8 to 54 MHz Dual Directional Detector. Sep 26, 2017 · All on 1 single heat spreader. At 1296, it's only down an additional half a db from center. 600w 23cm RF deck basic kit, $145. PAØVRE dec. Blank board only for the 600w 23cm amplifier, $45. 7 amps and gave it the smoke Freescale Semiconductor's recent offerings of 1. Typically, one would use this as the base L. Here's a killer 1296 rover setup --- a small (FT-817) I. This can be selected by the operator to be either an output voltage on the rear panel or a coax bias-T feed as required. Diy. RA18H1213G Module data sheet: Test Data after Enhancement: Initial development notes: Couplers for combining amplifier modules, made with FR4 and R4350B laminates This close-up shows proper component placement for L band. 2GHz 18W Amp +42. Remove the cover plate on the UX-910 and set it aside. The 9700 controls both the switching and sequencing of the LNA. For those of you participating in this 23cm amplifier project, here is the link to the project construction tips and tools page. for a microwave transverter, or as a source for a beacon amplifier. 1 KW 2M LDMOS Amplifier. It is reasonably The 1296 MHz Gemini 23 incorporates a front panel switchable 13. PTT (event 1 through the sequencer) will override this control, keeping The lock-out circuit was designed to operate a gate feeding the main power to the amplifier under control. Only 500mw drive is needed for 100w out300mw would be enough if High power amplifier for 1296 1 KW SSPA for 1. The oscillator side of the board is shown on the left, and the oven controller side on the right. 7 Amp. Posts: 17 Threads: 2 Joined: Jul 2017 #1. For 13cm, changing L1 to 2. 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. It happens like this: Key down, the antenna relays switch, 100ms later the cutoff relay turns on the tube, 100ms later 100w 23cm "brick". Kuhne 23cm Linear Power Amplifier with kit of supporting parts. 1. Category: W6pql 23cm amplifier. F. With 8 to 10 watts drive, a pair of them will easily deliver 150 watts. 1 KW 6 Meter LDMOS Amplifier. The dual directional detector provides the signals for the SWR lockout, and also drives the LED forward and reverse power meter bar graph displays. 062 PTFE on the output. I am looking to up my RF power on 23cm. Two coupled PAs with each 2 times 2C39 deliver around 400W RF. 2016-12-24. Current at this port is only 5ma. Low-loss antenna relay. On the web, one can also find amplifier designs N 37. High power amplifier for 1296 1 KW SSPA for 1. GEMINI 23 is a complete turnkey solution incorporating an integral 50V linear power supply so no external PSU is required. 25kw and 600w transistors have been getting a lot of attention, and this resulted in the development of kw amplifiers for 6m, 2m (F1JRD) and 222MHz (W6PQL). This kit includes the PCB. Kit Support. Still, it only takes about 4w to drive this one to 1kw out on 222 MHz. Only 500mw drive is needed for 100w out300mw would be enough if It uses a small commercially-made coupler on the input, and for the high-power side, the output coupler is printed right onto the board. XRF-286 Amplifiers for 23cm. Hobbies other than amateur radio include wine making, precision shooting, golf and tennis. Mats supplied the following simple schematic with his cavity, along with some additional instructions. This amplifier combines a pair of 500w RF decks, using input and output couplers; the device used is the 600w Freescale MRFE6VP5600H. 200w 23cm Amplifier. A complete set of the instructions that arrived with my particular cavity can be viewed in this file: complete instructions. The latest technical update is shown at the end of this page. Amplifier kits Here's a clean, stable local oscillator that can be used to provide up to +17 dbm anywhere in the 1000-1400 MHz range. A high-VSWR sensor will lock out and bypass the amplifier if it senses a load VSWR greater that 2/1 (internally adjustable). Set the main band to 1296. It's water-cooled, thermally stable, and very smooth-tuning. What it actually does is operate the relays in order, allowing the contacts enough time to close and be ready for all that RF coming their way. The construction notes supplied are specifically written to suit the specifications of the RA18H1213G 18 On 23cm, an amplifier using just one ‘286’ can be driven into saturation with as little as 3 or 4 watts, and a pair with less than 10, making that last configuration a close match for many of the 10w radios in use today. In fact, I use this same board in my 23, 13 and 9cm transverters, and as a driving source for the 23cm beacon . Title. These next 2 photos show the component selections for the low pass filters at 70cm High power amplifier for 1296 1 KW SSPA for 1. Turn the radio off. 5 dB gain and a DC power efficiency of 58%. 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). It includes a TR switch, relay sequencer, and all controls necessary to operate the amplifier safely and reliably. 23cm Signal Generator. Description. Developers: US4ICI & US2IDR Technical specifications Model: PA-23cm-150W-N-female Based on MRFE6S9160HS transistor RF Range: 1260 — 1300 MHz P input TX < 6 Watt Pout = 150 Watt (JT65, FM) Pout = 180 Watt (CW, SSB) Supply operation: 28 V DC at IDQ = 12 A (TX) Impedance: 50 ohms RF connectors: N-female The 9700 controls both the switching and sequencing of the LNA. LDMOS transistor, if ordering the basic kit. High power amplifier for 1296. This gate can be a mechanical or a solid-state relay. 23 CM Beacon. Switch 430 to the main band and refer to page 5-7. It has it's own integrated input/output branchline hybrid couplers, and an output sampling coupler (for ALC feedback or power indication). The most current version of the filter is generation 2; the original filter article, and another revision ( rev 6) of the original filter board are also described here later for reference only. The 1500w low pass filter for 2m (or the kit) Three 40cfm 80mm cooling fans. This amplifier takes advantage of the proliferation of surplus cellular 26v RF boards. A Nada directional coupler and W6PQL dual detector is used to provide an indication of output power and provide high SWR proection. Idrain - 3. Sep 20, 2019 · To: UKMicrowaves@groups. 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 There is an additional description of a sequencer in the 300w 23cm amplifier article listed on the left. 03-01-2018, 06:43 PM . 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 60w 23 cm Amplifier 23 CM Beacon 23cm Signal Generator 23cm Double Quad 23cm filters 13cm filter 13cm Signal Generator 13cm Transverter 120w 13 cm Amplifier 600w+ 33cm Amplifier 300w 33cm Amplifier 33cm filter 33 cm Crystal Source 33cm Signal Generator 9cm Transverter Transverter Selector 12 AND 28 volts Klitzing Amplifiers IC-910H tweaks Audio High power amplifier for 1296 1 KW SSPA for 1. It is fully remotable including power up, standby mode, and follows radio band selection by bcd method. Generation 2 and rev 6 are basically the same filter, though the 23cm Double Quad. A linear power amplifier w11h the ERICSSON PTB-20174 Push-Pull transistor delivers about 90W output with 13W drive power and about 57% dficiency on I . On 23cm, an amplifier using just one ‘286’ can be driven into saturation with as little as 3 or 4 watts, and a pair with less than 10, making that last configuration a close match for many of the 10w radios in use today. Each transistor has it's own bias adjustment. A600 is a 600W HF/VHF linear amplifier project using 2x MRF300 LDMOS transistors. Using Inexpensive Relays. This amp has two blf188xr modules so it will loaf at legal limit. Time Owned: more than 12 months. . 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 Many of us have been waiting for a practical 70cm solid-state amplifier design. service at 1268. The widest lead on the GaasFet is positioned to the upper right. This one (on Ro3006) is optimized for 1296, yet will still work well for L. Home. 1 Mhz USB, and connect a proper dummy load to the antenna terminal. The material is microwave substrate with 2oz copper both sides, necessary to handle the higher RF currents this amplifier produces. In the 1/2012 issue of Dubus magazine, F5FLN showcased his KW amplifier for the 70cm band. In the radio's menu system, the external LNA is set to 'on' and the transmission delay set to 30ms. When Q2 receives a large enough signal (negative-going) from an SWR 600w 23cm RF deck kit assembly instructions. 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. The children are all grown up now, on their own, and doing O. 2 Meter 80W All Mode Amplifier. This morning I completed the amp, based on a W6PQL 600w pallet, set the idle 50 VDC VDD to 1. Solid-State 23cm Amplifiers. RA18H1213G Module data sheet: Test Data after Enhancement: Initial development notes: Couplers for combining amplifier modules, made with FR4 and R4350B laminates 600w 23cm RF deck basic kit, $145. 100w 23cm Transverter. . Ideally I want at least 50 watts, but much more would be great. Id -12 Amp Bias - 4. Internal fans, swr protection, alc circuit and LNA switching. This signal generator uses a free-running L-band VCO as it's source. 23cm (1296MHz) MRF9045/MRF9060 High Power Amplifier Project. Even if you are an accomplished builder of other things, the assembled/tested RF deck may be your best PC Board Filters. com. The following are some of the photos of the interior and panels. in stock. click a picture to enlarge. Generation 2 and rev 6 are basically the same filter, though the N 37. Mar 20, 2018 · A Very High Power 50v LDMOS Amplifier for 1296MHz. W6pql 23cm amplifier. The top one, shown with it's 100 ohm 500w isolation resistor (positioned Sequencer Details. 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. That requires an antenna with as much gain as possible, and a powerful amplifier. U102 can be connected to a sensor, typically a thermistor mounted on the heat sink of the amplifier. 3GHz. On the oven side, the temperature sensor (R12B) and the heater resistors are located near the crystal. Here's another 1268 MHz filter, but on FR4. Most of these instructions are also posted on the net in various places, and on Paul's web site. Once the temp is below this level, U102 shuts off the fan. A 1. • Significant Improvements made over W6PQL designs • Best power output is 320W with 13. • No Boards will be produced, however those interested can contact Darrell VE1ALQ for Drawing and Gerber files needed to get boards produced. By Jim Klitzing, W6PQL the core of this 23 cm amplifier is a Russian tetrode, the GS 15B, modified for water-cooling as shown in Figure 1. Specifications. I have a radio output of 0. If you purchased an assembled/tested RF deck, here are some observations and the instructions for making Here is the all new custom 2 Meter Kilowatt Linear Amplifier built and designed by Jim/W6PQL. Un-grounding this port turns the switch back off. The dump port on the output coupler is terminated with a 125w chip resistor (shown at upper left). 5 KW Low Pass Filter for. 9pf gets the job done nicely. 5dBm. jf mh bm eo bn zz hb ei pv oi