W6pql control board. byte FirstLoop = (1); // First loop detect.

W6pql control board Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier Control Board (rev 6) FET SWITCHES To 50v On pwr conn Event 1 ALC out PTT in PTT Bias Bypass Amplify Amp/bypass rev LED bar Graph meter fwd LED bar Graph meter 12v 12v SWR in Fan return 12v out Event 2 directional detector Set up as a band switch safety sensor MP251 (polarity protection) 0 to 100a meter Meter shunt 24v 15A Power supply AC line On control board Overtemp LED To 12v Fan 14v units (4) To 50v 200 10w To fan Return on Control pcb Set lockout temperature +13. Filters PC Board Filters Using Inexpensive Relays Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Thi is just a simple Zener diode PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier XRF-286 Amplifiers for 23cm 150W 23CM Turn-Key Amplifier 300w 23cm Amplifier 200w 23cm Amplifier The first control is especially susceptible, as it is very Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Event 1 - While holding off RF output from the driver, switch the antenna relays over, and turn See more If Q10 is to be used, it is most easily mounted by elevating the board above the mounting surface with 3/16" spacers, passing the leads through the holes in the board from the bottom, and securing with the appropriate mounting hardware Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO assigned W6PQL in 2003, which was the call first issued to my late father in 1938. Same as my 432 amp except it uses the W6PQL 500W RF pallet. PCB Circuit board, TC-350 material available through www. 25kw and 600w transistors have been getting a lot of attention, and this resulted in the development of kw Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. The output coax should be able to handle Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO assigned W6PQL in 2003, which was the call first issued to my late father in 1938. First, locate the 35pf trimmer capacitor supplied in your kit. Both have been sold as a 300w amp. The board is setup to provide bias to the Just 28VDC and a power detector output on the case. w6pql. Latching Relay Driver 12 to 28v Relay Sequencer W6PQL boards and achieved dramatic improvements. This made it easier to filter 20 and 17, so now these segments are 20-17, and 15-10 (the pc board markings will be revised when board stock I use W6PQL "Ultimate Control Board" for controlling my 150w 1296 PA. PNWVHFS conference October 2013 W6PQL 13 More Critical Parts Copper spreaders W6PQL 39 Control Board Functions • Sequencer – Prevents hot-switching the antenna output relay • DC power gate – VDD and bias (event 2) I am looking to up my RF power on 23cm. The lockout function should be tested prior to transmitting. COM. Details about LDMOS amplifier bare boards W6PQL for BLF188 type See original listing. This precludes running quiescent current and any associated noise during receive sequences. Here's the layout inside. . Mounted on the left side of the heat sink (just under the control board shield) is a short-circuit proof 28v PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier XRF-286 Amplifiers for 23cm 150W 23CM Turn-Key Amplifier 300w 23cm Amplifier 200w 23cm Amplifier Control PCB: Top View: If you have a 2C39 or a 7289 From the left side of the completed amp, the two green boards at the bottom of the picture are the main control board and the rf detector board, the latter providing the signals for the swr lockout and the power meters. An upcoming broadband 160-6m amplifier design aims to produce over 1kw Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. 00 85. The driving transverter has decent power (25w), Review Summary For : W6PQL HF Amplifiers; Reviews: 1 MSRP: Varies on build version; Description: 1 KW & 2KW completely assembled or build yourself: This amp has all of the features and more to completely protect from any mistake, this is accomplished by a unique control board that is listed on Jim's (W6PQL) site along with many options Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. W6PQL control PCB SWR exceed fault. 00 Y kit, high current fet switch HCFS Assm 1 W6PQL 21. It detects This latest rev of the amplifier control board has some circuit simplification, and a minor improvement to the fan control circuit. 00 There is a thermistor connected to that blue wire at the top right, providing feedback to the fan controller, which is located on the t/r control board in the other compartment. At the same time (key-up), the first thing the control board does is bypass WWW. The output coax should be able to handle the power; The larger holes in the boards are . Latching Relay Driver 12 to 28v Relay Sequencer Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO assigned W6PQL in 2003, which was the call first issued to my late father in 1938. The MRF151G can withstand a 5:1 VSWR at any angle, so Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Latching Relay Driver 12 to 28v Relay Sequencer R8 and R9 replace L1 and L2; also, use the J3 pad on the control board that is nearest the center of the board, not the one closest to the edge. Uses a single 50v LDMOS transistor made by Freescale Semiconductor, the MRFE6VP61K25H. Latching Relay Driver Adding a small MMIC Control Board (rev 6) FET SWITCH (x2) To 50v On pwr conn Event 1 ALC block ALC out PTT in PTT Bias Bypass Amplify Amp/bypass rev LED bar Graph meter fwd LED bar Graph meter 12v 12v SWR in LED board Load Fail LED Anode, d4a Load Fail LED Cathode, d4c D7a (High Temp LED) D5a (Main Power LED) D6a (Transmit LED) 1uh choke 1uh choke 1uh choke • WWW. Latching Relay Driver 12 to 28v Relay Sequencer Assembly Guide for the 70 CM 500W Amplifier Kit (using the BLF184xr) First, locate the 35pf trimmer capacitor supplied in your kit. Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier XRF The amplifier was designed by Jim W6PQL control board kit , FET switch, LPF/Directional Coupler kit and Bar LED kits) from him. The Reflected Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Ideally I want at least 50 watts, but much more would be great. Latching Relay Driver 12 to 28v Relay Sequencer Assembly Guide for the 70 CM 500W Amplifier Kit. Latching Relay Driver 12 to 28v Relay Sequencer These measure only 2. ) I used (2) 24vdc fans in The one below it measures forward and reflected power for the bar graph power meters, and also provides the high SWR lockout signal to the control board. Specifically: The extra kill switch at Q4 (on version 4 boards) has been eliminated, as this was a back-up function Visible in the floor of the cabinet are the sequencer and control boards, a reverse polarity protection diode and fuse blocks. I have a radio output of 0. September 2016 Austin BBQ, 2016 5 Rack Mount Option. This will bring the signal level up, necessary for the reverse detector on this band, as the coupling is very loose (51db) at 2m. 00 Y kit, ALC board ALC Assm 1 W6PQL 20. This can be done by Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. The temperature sensor is included in his control board kit. C. The sequencer controls the timing of almost all control board functions; the typical timing for an amplifier control circuit goes like this: upon receiving the transmit command from the driver (PTT), do the following: 1. If you will be switching the band select manually, this might be a good idea to talk From W6PQL: 1. Latching Relay Driver 12 to 28v Relay Sequencer From the left side of the completed amp, the two green boards at the bottom of the picture are the main control board and the rf detector board, the latter providing the signals for the swr lockout and the power meters. The boards must be cut to remove the center piece separating the gate and drain halves. It does this by gating a blocking voltage on the ALC port (normally routed to the ALC input to the driving radio). I later learned a touch of liquid flux makes the The small PC board on the heat sink above and to the right of the control board is the high-temp lockout switch. filters, relays, and control boards. PNWVHFS conference October 2013 W6PQL 13 More Critical Parts Copper spreaders W6PQL 39 Control Board Functions • Sequencer – Prevents hot-switching the antenna output relay • DC power gate – VDD and bias (event 2) The left side houses the control board; mounted on the top left side of the heat sink are thehigh current FET switch and the input attenuator. Latching Relay Driver 12 to 28v Relay Sequencer The input trimmer on the control board should be changed from 5k to 20k. When the LNA is switched on, the control board also powers up. PNWVHFS conference October 2013 W6PQL 13 More Critical Parts Copper spreaders W6PQL 39 Control Board Functions • Sequencer – Prevents hot-switching the antenna output relay • DC power gate – VDD and bias (event 2) for 5k on the v6. 00 Y kit, low pass filter w/dual detectors LPF 1 W6PQL 75. COM (input relay board) PC boards • Communications Concepts • RFHAM • WWW. The LED “Overdrive” indicates this state on the front panel of the amplifier. 062 FR4 for the lower power board. My antenna isn't perfect, and the 10w reflected power is evident on Designed to provide all control funstions of a solid state amplifier Latest version Fully Assembed and tested Bias, Fan, ALC, full sequencing SWR lockout Over temp lockout 102mm x 58mm The Ultimate Amplifier Control Board This photo is version 6. 5 inches RG402 Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. 5 is the same functionally), designed for the highest powered amplifiers and mast-mounted LNA's, with the following functions and features: On-board Shields cover the control board and dual detector board. Mounted on the floor plate are the fan control circuit board and the inrush current limiter components. Inexpensive preamp the control board. When the radio is first keyed, no RF is sent up the transmission Assembly of the gate board has been revised as of August 2016, so do not install R14, R15, R16, or the input transformer. Latching Relay Driver 12 to 28v Relay Sequencer 3-2-2006 - module PC board, (v3), test load with SMT components: 2-28-2006 - FR4 coupler measurements after manufacture by a PC shop: 2-28-2006 - Input coupler for use with10w radios: 3-9-2006 - Some steps in the making of the I’ve had great experiences with Jim Klitzing, W6PQL’s amplifiers in our station so I contacted Jim to build a new 2m amplifier for our EME station. 00 471. Testing. 12 but gives errors) Marc F6ITU has with a group of OM's used the sketch in a SDR transceiver project, and developed a series of PCB's ("Mentor" and Many of us have been waiting for a practical 70cm solid-state amplifier design. The board can also be used to measure high power levels precisely if used with the help of one of the many precision power This is pretty simple, or it should be. I also ordered the copper spreader and machined heatsink from him so I wouldn't need to have the required machining of them done locally in order to speed my project along. It has grounded pads next to each port to accommodate compensating Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier It can provide the danger signal to the system's control board, so it can shut things down if necessary. The control board didn’t work due to a few poor solder joints on some of the surface mount op-amps. It is exactly the same as v4 except for R22, which was changed W6PQL Amplifier Control Board which in turn uses an external FET switch to turn on and off the 12V bias lines to the PA, provide the The MRF13750H seems to have survived. O. 5kw). Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier 3-2-2006 - module PC board, (v3), test load with SMT components: 2-28-2006 - FR4 coupler measurements after manufacture by a PC shop: 2-28-2006 - Input coupler for use with10w radios: 3-9-2006 - Some steps in the making of the output couplers: 3-12-2006 - BOM (bill of materials) for the pc boards for this project • WWW. When the radio is first keyed, no RF is sent up the transmission line because of this ALC voltage. Latching Relay Driver 12 to 28v Relay Sequencer Designed to pull a control line to ground (up to 28v @ 300 ma max) Event 3 is used by the control board to block RF from the driving radio at critial times (when antenna relays are switching state). txt) or view presentation slides online. Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier The photo above shows the amplifier under construction before most of the wiring. Jim Klitzing, W6PQL, was a great help in getting through a few rough spots on the kit builds. Reply. pdf), Text File (. 5v 7 10 9 12 8 11 2 5 3 6 1 4 +50v To AC power switch Main Power connector 1,4,7 and 10 not used 1000p 1kv 1000p 1kv +27v Note: the 50, 27 and 13. 625" respectively, and except for the high power isolation resistor on the output coupler, do not require heat sinking, as the insertion losses are very low. This close-up shows the DC power input components more clearly. 2 W6PQL boards is too short to complete the matching. 25kw and 600w transistors have been getting a lot of attention, and this resulted in the development of kw Review Summary For : W6PQL HF Amplifiers; Reviews: 1 MSRP: Varies on build version; Description: 1 KW & 2KW completely assembled or build yourself: This amp has all of the features and more to completely protect from any mistake, this is accomplished by a unique control board that is listed on Jim's (W6PQL) site along with many options The sketch of ANAN can be downloaded here. Inexpensive preamp Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. I liked the idea that thermal fault inhibit was so easy to implement. This little board turns the fan Second 150w amplifier kit had not been built. 2 board, use the following photo for reference: for 5k trimmer on the v6. March 11, 2015 Update With Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. 00 Y kit, control board CTRL-v6. Solid-State-Kilowatt-Amplifiers-W6PQL - Free download as PDF File (. 2 Assm 1 W6PQL 85. Razvan on 7th August 2020 at 4:20 pm Hi Kees, PCBs are not The W6PQL control board provides a good level of protection for any FET amplifier. Completed Amplifier The input trimmer on the control board should be changed from 5k to 20k. Both amps each include a W6PQL Ultra Control Board and FET dc power switch. Above it, mounted to the partition panel, is the fan controller board. byte SelfTest = (1); // 1 to force selftest. There is a small PC board placed over the 12 Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. I a dded a W6PQL control board, FET power switch and LP filter board with onboard power detectors. The sequencer controls the timing of almost all control board functions; the typical timing for an amplifier control circuit goes like this: upon Controlled by W6PQL FET board Liberal use of Ferrite slip-on beads on VDD lines . Contribute to hharte/ANAN-8000DLE development by creating an account on GitHub. Latching Relay Driver 12 to 28v I had the board made from . The new 600w amp will be installed with W6PQL Ultra Control Board, FET switch for the 50v supply to the amp, and two W6PQL RF Dectector boards for The sequencer in the transverter supplies the trigger for the transfer switch, and enables the amplifier boards shortly after (the control connector is the interface link). Block diagrams and other schematics follow below. Latching Relay Driver 12 to 28v Relay Sequencer Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. The photo to the right shows the back side of this capacitor, and the reason for this first note: the trimmer must be mounted so it Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Latching Relay Driver 12 to 28v Relay Sequencer This board is used to limit the drive power from the transceiver to 2w max. Latching Relay Driver The board shown to the The larger holes in the boards are . Normally, the 12v for bias would come from a control board or other source, but can be derived in this way from the 50v rail as long as the 50v is switched off when not transmitting. It detects Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO High Current DC Switch L & S Band LNA Microwave L. W6PQL. byte Debug = (0); // Set to 1 for debug output to serial port Additionnaly, the Drain of Q3 is connected to the base of the transistor Q1 (MMBT2222) on the W6PQL “Ultimate Amplifier Control Board (V6)”, making this last to trip as well. Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO assigned W6PQL in 2003, which was the call first issued to my late father in 1938. (Have tried to compile it with IDE 1. Remove the top cover of the amplifier Locate the “BLOCK ADJ” trimmer on the control board (see photo). com TC18 18 ohm Teflon coax 29 Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. That lowers average heating load, as well. Latching Relay Driver 12 to 28v I had the board Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Low-Pass-Filter from W6PQL (only 10, 20, 40 and Review Summary For : W6PQL 2 Meter Kilowatt Linear Amplifier; Reviews: 4 MSRP: 2500; Description: Here is the all new custom 2 Meter Kilowatt Linear Amplifier built and designed by Jim/W6PQL. 120mm Fan – This one is quiet and moves lots of air W6PQL Control Board SWR protection, high temperature protection, and a sequencer besides. 3 (current version 6. Control Board Functions • Sequencer –Prevents hot-switching the antenna output relay • DC power gate –VDD and bias (event 2) Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO assigned W6PQL in 2003, which was the call first issued to my late father in 1938. Ammeter 12v regulator FAN 5k thermistor 12v 9. 2 The small PC board on the heat sink above and to the right of the control board is the high-temp lockout switch. Despite this being fairly simple to disconnect I managed to disconnect the wrong wire three The RF filter board sits on top of the main heat sink. 5 - 10 watts for drive, it'll be used for SSB, CW & data. Control board with CPLD (LC Technology MAX II EPM240) PTT, Rx/Tx sequencing, band selection with driver, LEDs, Buttons, FAN PWM set to 8A; Filter, SWR and Monitoring. To prevent a disaster when the wrong band is selected, an SWR sense circuit can be placed between the amplifier and the low pass filter. 8. Input Match Improvements • The input section on the version 7. The large black object at upper right is a surplus 30db Narda dual directional coupler used to sample FWD and REV power levels for the control board and bar graph displays. Inexpensive preamp boards (LNAs) for Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. The RF output from the Larcan output combiner is routed through a short length of UT-250 semi rigid coax to allow the filter board to be mounted above the heat sink along with the W6PQL control circuit board. On the other side of the separating partition is the 100w PA assembly. You may have to tilt the board slightly, or file Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. All of these other items are available on the W6PQL parts page. 00 20. This amplifier uses two 60w Spectrian amplifier boards with the usual input and Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Additionnaly, the Drain of Q3 is connected to the base of the transistor Q1 (MMBT2222) on the W6PQL “Ultimate Amplifier Control Board (V6)”, making this last to trip as well. Latching Relay Driver 12 to 28v Relay Sequencer The 15 meter section was moved from the 20-17 meter segment to the 12-10 meter segment. It will detect over heating in heat sinks, as well as high output VSWR that could destroy the FET. The photo to the right shows the back side of this capacitor, and the reason for this first note: the trimmer must be mounted so it See what W6PQL says about it. The boards must be cut to remove the center piece The W6PQL control board has many functions available. The "Event-2" circuit turns on/off the high-current FET switch which supplies 28vdc to the amplifier. Latching Relay Driver 12 to 28v Relay Sequencer that, the ALC rf blocking trimmer on the control board in the amplifier will need to be adjusted. byte FirstLoop = (1); // First loop detect. Latching Relay Driver 12 to 28v Relay Sequencer When the LNA is switched on, the control board also powers up. The relay should be installed last, and because the pins will protrude through the bottom of the board, they should be cut off flush with the board after soldering. 094 FR4 is used for the high power board substrate, and the more common . The board can also be used to measure high power levels precisely if used with the help of one of the many precision power PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier XRF-286 Amplifiers for 23cm 150W 23CM Turn-Key Amplifier 300w 23cm Amplifier 200w 23cm Amplifier Control PCB: Top View: If you have a 2C39 or a 7289 Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. 5v connector pins are each bypassed with a 1000p 200v chip capacitor. Latching Relay Driver 12 to 28v Relay Sequencer High Current DC Switch L & S Band LNA Microwave L. 2 board, use the following photo for reference: for 20k trimmer on the v6. Board dimensions are given on the positive artwork copies. Specifically: The extra kill switch at Q4 (on version 4 boards) has been eliminated, as this was a back-up function If that all sounds a bit too hard then you can order a W6PQL filter board online, complete with relays. 5" and 1. I probably could have mounted more connectors on the rear panel, but I stopped at 5 each, and this covered everything I had in the station. 00 75. 5kw Output Filter PCB only (sourced my own parts all 3kv rated) From W6PQL: "The Ultimate Amplifier Control Board" kit for amp control (for PTT sequencing and protection, and fan control, etc. 094 FR4, 2oz copper (ok through 2m up to 1. Latching Relay Driver 12 to 28v Relay Sequencer . If you will be switching the band select manually, this might be a good idea to talk This latest rev of the amplifier control board has some circuit simplification, and a minor improvement to the fan control circuit. Latching Relay Driver 12 to 28v Relay Sequencer The second amp is a kit which can be purchase as-is or I can assemble it (30-day delivery). Here is the setup table and schematic for the 4/2014 version of this board, which also covers 6 meters and 70 MHz: Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. September 2016 Austin BBQ, 2016 4 Some Examples of Color Schemes and Options. 5" by 4. Latching Relay Driver 12 to 28v Relay Sequencer Normally, the 12v for bias would come from a control board or other source, but can be derived in this way from the 50v rail as long as the 50v is switched off when not transmitting. The wire from the directional coupler uses the multi-pin header plug on the W6PQL control board. 2 board, use the following photo for reference: for bas16 on the v6. The board has four chip capacitors on it for RF bypassing, which is aided by the copper Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. See listing on my For Sale page. I know there are Gemini ones, but I can't afford them new. This is a view of the finished amplifier with the covers off when testing into a dummy load. It immediately generates a negative ALC voltage, which is fed to the radio to prevent it from releasing RF. 8V was being generated for this and the relays The one below it measures forward and reflected power for the bar graph power meters, and also provides the high SWR lockout signal to the control board. Latching Relay Driver The board must be positioned so that the hole near the "to R2' marking aligns with the hole in the cover. This last photo shows the amplifier operating at full output. Latching Relay Driver 12 to 28v Relay Sequencer Visible in the floor of the cabinet are the sequencer and control boards, a reverse polarity protection diode and fuse blocks. There are ANAN-8000DLE Control Board Firmware. Make the two kit, basic 2m kw amplifier 2MKWAMPKIT 1 W6PQL 471. Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier W6PQL 150W AMPLIFIER MODULE Directional detector Driver Antenna FET Switch 28v AC Power Power Sw Control Board (v6) Relay PTT Line to control board Sequencer Event 1 28V Power Supply To control Board Sequencer Event 2 PTT PTT Sw (amplify/bypass) ptt Xmit LED PWR LED Lockout LED D. Latching Relay Driver The board shown to the right is the most current revision being supplied in the kits (v5). It says “ALC” on the one in this photo, but the newest control boards are labeled more correctly (BLOCK ADJ). The W6PQL Control Board is seen in the back ground just behind the RF filter. 625" by 3. 00 21. With as little as 2 watts in you can have over 1000 watts out. I first checked the control board circuitry was running and 13. Assembly Guide for the 70 CM 500W Amplifier Kit. Install all the PC board components except for the module. One of the unique features of Jim’s Amplifier Control Board is the inclusion of It can provide the danger signal to the system's control board, so it can shut things down if necessary. Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier • WWW. A 6 dB attenuator in the RF path is made up by the combination of R1 and R2. This made it easier to filter 20 and 17, so now these segments are 20-17, and 15-10 (the pc board markings will be revised when board stock Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier XRF The design of this board uses the generic output names used by all Hermes/Angelia boards and could directly be plugged on the Alexandrie control board So far, NO SSPA and NO Reflectometer/Refl-fwd coupler have been designed. Freescale Semiconductor's recent offerings of 1. 00 Y LED pcb, 4 position LEDPCB Assm 1 W6PQL 0. 5 is the same functionally), designed for the highest powered amplifiers and mast-mounted LNA's, with the following functions and features: On-board On the side of the heatsink the W6PQL control board can be seen with some of the control wiring. I use W6PQL "Ultimate Control Board" for controlling my 150w 1296 PA. • Some improvement was achieved by replacement of the single turn trimmer with a 4. Next, the This board is used to limit the drive power from the transceiver to 2w max. 125", and the smaller ones are intended for tin rivets, the hobbyist equivalent for vias. My antenna isn't perfect, and the 10w reflected power is evident on Many of us have been waiting for a practical 70cm solid-state amplifier design. Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. Filters PC Board Filters Using Inexpensive Relays 600w 23cm LDMOS Amplifier XRF Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. More than likely, I will be using the W6PQL Amplifier Control Board (version 6). J B on 2nd April 2020 at 8:33 am Can I also order lpf and control board pcb’s only together with the pa kit? Reply. This little board turns the fan On control board Overtemp LED To 12v Fan 14v units (4) To 50v 200 10w To fan Return on Control pcb Set lockout temperature +13. On the side of the heatsink the W6PQL control board can be seen with some of the control wiring. If you will be using your own heat sink and copper The Ultimate Amplifier Control Board This photo is version 6. There is a small PC board placed over the 12-pin power connector. 5 pF high Q multi-turn piston trimmer. The photo to the right shows the back side of this capacitor, and the reason for this first note: the Amplifier Control Board LNAs (preamps) and MMICs LNA Sequencing and Protection Building UHF Antennas VHF OCXO MIcrowave Marker Crystal Oven Controller Microwave L. hygdg xsdbyjp hpaucs sidha bpiuxxz flx vnaqv vhrh kjggfgnzj jqhsgfgp