W6pql 50v switch. Then mount the two 1206 size 1000pf capacitors, the two 2.
W6pql 50v switch. Based on W6PQL design. I chose to build the modules along with items that did not require alignment: LPF, directional couplers, etc. Event 1 is normally used to switch antenna relays. I also purchased as complete assemblies, the input and output Mar 20, 2021 · The front panel has metering, status LEDs, a band change switch with indicator LEDs and bar graphs for forward and reflected power. 047uf 450v capacitors to be installed drain-to-gate (resistor/cap in series) on each device half, as shown in the photo. K. 00 Y kit, low pass filter w/dual detectors LPF 1 W6PQL 75. 8 to 54 MHz Dual Directional Detector. Designed to pull the relay return line to ground (up to 100v @ 3 amps max) Event 2 is normally used to switch on amplifier bias (12v bias port provided) and can simultaneously operate other devices, such as a high current FET power switch (used to gate VDD to the amplifier). This makes it an ideal match for most of the 10w radios in use today. Shut off the power supply, and remove current limiting. Automatic Transverter Interface. Filters 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 100w 23cm "brick" 100w 23cm Transverter 60w 23 cm Amplifier 23 CM Beacon 23cm Signal Generator 23cm Double Quad 23cm Kit I0JXX Pallet 200MOD1296 50V amplifier (old model). One daughter is an engineer, the other a CPA. Output circuit of sequencer can be modified for any 12/24/48V coaxial relay. The W6PQL design uses the BLF188XR (1250watts CW @ 50vdc) for the LDMOS transistor pair. The 430pf RF capacitors are clustered in groups of 3 at the four locations shown. Second 150w amplifier kit had not been built. Current at this port is only 5ma. Note: the current drawn by the bias supply (usually12v) is not what you are measuring hereyou must measure the idling current (IDQ) the LDMOS draws from the 50v supply. The next two positions (3 and 4) are 50V on transmit and feeds the 50V to the RF deck. Begin with the input (gate) board. This relay is supplied from 50V bus. 00 75. Turn on the 12v bias supply and note the idling current drawn from the 50v supply. Filters 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 100w 23cm "brick" 100w 23cm Transverter 60w 23 cm Amplifier 23 CM Beacon 23cm Signal Generator 23cm Double Quad 23cm First licensed in 1964; assigned W6PQL in 2003, which was the call first issued to my late father in 1938. THE PARTS: From W6PQL: PA PCB + Copper spreader + Heat sink, and sourced my own parts. Still, it only takes about 4w to drive this one to 1kw out on 222 MHz. To operate the switch, all that is required is grounding the 'on' port. 12v and 28v models can switch up to 35 amps, 50v or 65v models more than 45 amps The photo shows Rev 3, an upgrade to the FET switch shown in the technical article; rev 4 is the currently shipping model which has an extra disable pad and includes the aluminum oxide ceramic insulator upgrade which is shipping with all switches beginning Sept. 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. September 2016 Austin BBQ, 2016 4 50v. O. 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 is not centered between the two gate traces, it must be offset so the round part in the center does not sit above the opposite trace. (2019) 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). 00 Y For 50v, two sets of 24v 17 amp supplies (set to 22v) provide the last output, connected as shown. As the capacitors in the power supply charge and the inrush current subsides, the 50v output of the power supply rises enough to operate the bypass relay, which then closes and The second CMOS switch directs the common port to either the first transverter to be selected, or bypasses this port to the next switch. Figure 3 — Amplifier with front panel tilted down. Because is quit difficult to step down 50V to 24V without to using a big heatsink, i choose switching mode regulator solution. WD5Y Rating: 2016-12-24; 2KW W6PQL HF Amplifier Time Owned: more than 12 months. The RCS-4 antenna switch is actually modified, and is used only to remotely reconfigure the G5RV for 160m using ground radials. 1 KW 6 Meter LDMOS Amplifier. A larger fan and a 'high/low' fan speed switch were added to keep the amplifier really cool during EME skeds, but quiet for 'normal' 6m operation. 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. The photo above shows the amplifier under construction before most of the wiring. The topology of sequencer is almost same with W6PQL schematic or Handbook examples. For 50v, two sets of 24v 17 amp supplies (set to 22v) provide the last output, connected as shown. Designed to pull a SWITCH #2 LNA disable line 12v to LNA Event 2 1N4148 Low Pass Filter And dual directional detector assembly MP251 (polarity protection) 0 to 50a meter 1 milliohm Meter shunt 24v 15A Power supply AC line (remote AC switch) 15 50w 15A forward reflected 560 5w 0 to 100v meter Input relay High-power Output relay 25 ohms 25w 1uh 1uh 50v in 1uh 1uh 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. A switch on the front panel simply routes 12 volts to the needed set of relays. Amplifier under construction. I ordered the SSPA, LPF, control board, and two of the dual direction detectors (SWR boards) as kits. 8 v. 2 Meter 80W All Mode Amplifier. These final instructions refer to the degenerative f eedback components included in your kit; two 440 ohm 3w metal film resistors and two . Push-Button for turning on 50V supply; Switch to select StandBy/Operate; Green LED for 50V indication; Low-Pass-Filter from W6PQL (only 10, 20, 40 and 80m assembled) Assembly Guide for the 70 CM 500W Amplifier Kit. Excessive current +50v in TX mode (''electronic fuse'') Excessive output power ANAN100D SDR, Hybrid Transverter,600w 50v LDMOS amp: Elecraft KX3, hybrid transverter and hybrid amplifier: Elecraft KX3 and a hybrid transverter: 140 ft horiz. Each line going to the relays is connected to a front panel led which shows which band has been selected. I purchased most [1] of the boards in kit form, rather than pre-Figure 2 — Amplifier rear panel. The children are all grown up now, on their own, and doing O. With as little as 2 watts in you can have over 1000 watts out. W6PQL 1 Solid State Kilowatt Amplifiers Transfer switch Dow Key model 412 SPDT model 402. 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. PRF/MRF13750 1296MHz power amplifier; 6-7w in for 600w + output, 50v @ about 22amps : Instructions for setting up an IC-9700 for WSJT-X and WSJT-10: Instructions for setting up an FT991 for digital modes using WSJT-X: Remote LNA Controller (for handling mast-mounted LNAs) Solid-State 23cm Amplifiers For 1296 –600W+ using a single MRF13750 (50v LDMOS) W6PQL -October 2018 PNWVHFS 2019 conference (Seaside Oregon) A very simple circuit layout High Current DC Switch L & S Band LNA Microwave L. First, locate the 35pf trimmer capacitor supplied in your kit. 2uf and two 220uf electrolytics (observe the polarity on the electrolytics). (more info to be displayed) First licensed in 1964; assigned W6PQL in 2003, which was the call first issued to my late father in 1938. Jim Klitzing, W6PQL . Update (20 March 2018); assembled/tested RF decks, basic kits, and complete turn-key amplifiers are now available for shipment. COM. Attach ground, bias (12v?) and VDD (50v) wires to the RF deck, but do not apply power yet. PRF/MRF13750 1296MHz power amplifier; 6-7w in for 600w + output, 50v @ about 22amps : Instructions for setting up an IC-9700 for WSJT-X and WSJT-10: Instructions for setting up an FT991 for digital modes using WSJT-X: Remote LNA Controller (for handling mast-mounted LNAs) Solid-State 23cm Amplifiers Attach ground, bias (12v?) and VDD (50v) wires to the RF deck, but do not apply power yet. 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 monitoring forward and reflected RF power (remotely in the ham shack). PNWVHFS conference October 2013 W6PQL 30 Antenna Relays (output) 12v and 28v models can switch up to 35 amps, 50v or 65v models more than 45 amps The photo shows Rev 3, an upgrade to the FET switch shown in the technical article; rev 4 is the currently shipping model which has an extra disable pad and includes the aluminum oxide ceramic insulator upgrade which is shipping with all switches beginning Sept. Install all of the parts you see here except for R14,15 and 16. - zleffke/eagle_fet_switch. +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. September 2016 Austin BBQ, 2016 13 Transfer switch Dow Key model 412 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. W6PQL. 00 Y LED pcb, 4 position LEDPCB Assm 1 W6PQL 0. Positions 7 and 8 are 12V from the power supply First licensed in 1964; assigned W6PQL in 2003, which was the call first issued to my late father in 1938. 1. 8 to 54 MHz combiner set. It uses a single 50v LDMOS transistor made by Freescale Semiconductor, the MRFE6VP61K25H. supplied with FET switch kit: 2: W6PQL: input attenuator, 6, 10, 13 or 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). 1 KW 222 MHz LDMOS Amplifier. Excessive idle current of +50v in RX mode. Uses a single 50v LDMOS transistor made by Freescale Semiconductor, the MRFE6VP61K25H. Many of us have been waiting for a practical 70cm solid-state amplifier design. You can High Current, DC, High Side, P-Channel MOSFET Switch. Testing wall of the amp) the first two circuits are 50V continuous when the power switch is on. Freescale Semiconductor's recent offerings of 1. P1db for them is >+20 dbm, well above the levels used here. 00 21. Event 3 - 50 milliseconds after event 2, enable RF output from the driver. 5v connector pins are each bypassed with a 1000p 200v 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 (remote AC switch) 15 50w 15A 560 Mar 20, 2018 · A Very High Power 50v LDMOS Amplifier for 1296MHz. Then mount the two 1206 size 1000pf capacitors, the two 2. 5 KW LPF for 160-6m. Aug 2022 : This PA is now driven by an IC-7610 transceiver and powered by a Huawai R4875G1 'server supply' . Internal fans, swr protection, alc circuit and LNA switching. ANAN100D SDR, Hybrid Transverter,600w 50v LDMOS amp: Elecraft KX3, hybrid transverter and hybrid amplifier: Elecraft KX3 and a hybrid transverter: 140 ft horiz. 00 relay, rf input relayin Assm 1 W6PQL 20. This FET WWW. On the side of the heatsink the W6PQL control board can be seen with some of the control wiring. 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 sequencing necessary, generate an ALC voltage (just in case I need it later), generate an external PTT out for switching VLNAs or other external gubbins. There is an inrush current limiting resistor on the 240v source input to all supplies; this resistor limits the turn-on surge current so the AC on/off switch won't weld shut, as inrush currents will far exceed the ratings of the switch. 00 LPF support bracket and shield supplied with cabinet fitting 1 W6PQL 0. Upon switching back to receive, these events A 1. Transfer Switch 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. The first components to mount are the capacitors. Both have been sold as a 300w amp. C. PA DB6NT 3/50W Innovative Power Products: Dual directional coupler - RF Terminations - 90 Degree Hybrid Couplers W6PQL: PA controller - High Current FT switch - Hybrid Couplers Coaxial relays NARDA and Dow-key Fans ebmpapst 4114H - 2x285 m3/h on TX mode and 2x100 m3/h in RX mode. (2019) 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. Hobbies other than amateur radio include wine making, precision shooting, golf and tennis. If your kit was purchased after July 2016, the following parts have been changed (see the update notes and the photos there as noted below). assembled. 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. square loop antenna, window line feed, 2dbi; 6m Moxon: 7 element Yagi, 12dbi: 10 element Yagi, 14dbi: 15 element Yagi, 16 dbi: 46 element stacked Yagi array, 21 dbi W6PQL -October 2018 PNWVHFS 2019 conference For 1296 –600W+ using a single MRF13750 (50v LDMOS) W6PQL -October 2018 PNWVHFS 2019 conference (Seaside Oregon) The power switch in the amplifier is rated at 15 amps, and is protected from high inrush currents (common to switching supplies) by a 12 ohm high-power resistor. 500w 70cm Amplifier. 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). Testing High Current DC Switch L & S Band LNA Microwave L. These switches have excellent isolation (> 50db up to 200 MHz). Efficiency is over 70%; 50v at 28a, or 1400w DC input. The one at top right is used to sense whether the band switch is in the correct position (the wrong position can cause damage); if it isn't, it locks out the RF deck (via the control board). Painted the case metalic Black . 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 Rear Fans (4 x 28cfm) Fan return 12v out Event 2 1N4148 dual directional detector assembly MP251 (polarity protection) 0 to 50a meter 1/2 milliohm Meter shunt 24v 15A Power supply AC Q7, the event 1 switch, is designed to pull the return line of a relay (or relays) to ground, and can switch up to 100v at several amps. Following parameters are constantly (perhaps 100x per second) monitored - if any fault is detected, the amplifier is instantly put in STBY mode and the 50v supply is cut off : Over- and under voltage of 50v, 28v, 13. I use this event to operate a solid-state FET switch, which gates VDD to the amplifier. 00 20. 00 Y kit, ALC board ALC Assm 1 W6PQL 20. If Q10 is to be used to provide 12v from a 28v, 50v or 65v rail, a 25 ohm 25w current-limiting resistor should be placed in series with the connection to the rail to protect Q10 and D18 from damage due to accidental shorting of the 12v rail (it can happen to the best of us). 8 to 54 MHz 1 KW Amplifier Assembly Guide. 1 KW 2M LDMOS Amplifier. kit, high current fet switch HCFS Assm 1 W6PQL 21. CAUTION - for the initial test, you should place a 3 to 5 ohm 50w power resistor in series with the VDD, or use a current-limited power supply (limited to 5a). If that all sounds a bit too hard then you can order a W6PQL filter board online, complete with relays. Adjust IDQ for 2 amps. Filters 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 100w 23cm "brick" 100w 23cm Transverter 60w 23 cm Amplifier 23 CM Beacon 23cm Signal Generator 23cm Double Quad 23cm High Current DC Switch L & S Band LNA Microwave L. 5A - approx 1400W in A Very High Power 50v LDMOS Amplifier for 1296MHz. The front panel has metering, status LEDs, a band change switch with indicator LEDs and bar graphs for forward and reflected power. Position 5 is 5V from the power supply and is not used as is position 6 not used. Q8, the event 2 switch, also designed to pull a control line to ground, can handle up to 28v at up to 300ma. The latest technical update is shown at the end of this page. square loop antenna, window line feed, 2dbi; 6m Moxon: 7 element Yagi, 12dbi: 10 element Yagi, 14dbi: 15 element Yagi, 16 dbi: 46 element stacked Yagi array, 21 dbi Feb 16, 2017 · Testing the BLF188XR amplifier1KW out @50v 26. Ammeter 12v regulator FAN 5k thermistor 12v 9. Rated for SSB/CW/WSJT modes. brlbw vhmvhe rjb lmlgiy iyhxi mmelxt pcuu eefdf wqdeif niz