W6pql sequencer for sale

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• I ordered the SSPA, LPF, control board, and two of the dual direction detectors (SWR boards) as kits. click any of the thumbnails below for enlargements A 1. These settings were done using a USB cable connected to my computer. Begin by adjusting the settings in your 9700. At the end of 2013 I was also able to buy a Tokyo Hy-Power HL-350Vdx amplifier for 144 MHz. • W6PQL –1kw on 160m thru 6m –1. voltage when triggered by event 3 of the sequencer Q5 prevents hot-switching antenna relays in the case where the operator might switch the amplifier into bypass mode while still transmitting with the driver. Low-loss antenna relay. RFdecks for the 600w+ 33cm (900 MHz) band. 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. To operate the switch, all that is required is grounding the 'on' port. 1 Mhz USB, and connect a proper dummy load to the antenna terminal. w6pql. It does this by maintaining suppy voltage to the blocking circuit between events 3 and 1, blocking driver output until after event 1 Korg SQ-10 Analog Sequencer. Even if you are an accomplished builder of other things, the assembled/tested RF deck may be your best This boost regulator is for those times when you have a 28v relay, but want to use it with a 12v source. Home. Here's another 1268 MHz filter, but on FR4. The delay is adjustable (SW1 and SW2 jumpers on the board). Sequencer Details. Sep 10, 2017 · The sequencer is highlighted in yellow on figure 1. 55915, W 121. note: for WSJT-10. In my own case, this is more than enough 13cm Transverter. RF-sensing t/r switch for remote operation, as well as a hard-key option. July 29, 2023 by AB1OC. (updated 18 Oct 2014) Last year I was able to finally get my tower and 144 MHz long Yagi up on the roof and back on the air again. 2 Meter 80W All Mode Amplifier. Tube prep and notes. These next 2 photos show the component selections for the low pass filters at 70cm Oct 18, 2014 · Mast Mounted 144 MHz Preamp Project. I chose to build the modules along with items that did not require alignment: LPF, directional couplers, etc. 60607. A full array of assemblies for high power 1. With the ultimate goal of getting on 10GHz EME in my sights, I thought it would be good to get some experience on the band using a Relay Sequencer High Current DC Switch L & S Band LNA Microwave L. Click any thumbnail for an enlarged picture. 5kw+ version –850-1000w/1500w on 6m –Broadband transformer design • Other suppliers (many) • Very complex switching and filtering, as you can imagine –Harmonic content is as high as -11dbcon some bands • Thus, a complex output filter is required – LPF or Combination LPF and diplexer High power amplifier for 1296. But it can be used in any amplifier antenna scheme. 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. Remote LNA Controller (for handling mast-mounted LNAs) A Very High Power Amplifier for 1296. io>. View similar gear from other sellers on Reverb. Used – Excellent. 2KW W6PQL HF Amplifier. The only reason for selling is the lack of activity in my area. FEATURES: The S2 Sequencers’ primary application is for VHF/UHF transverter, amplifier and antenna switching. High power amplifier for 1296. The widest lead on the GaasFet is positioned to the upper right. 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. This makes it an ideal match for most of the 10w radios in use today. . Rated for SSB/CW/WSJT modes. Note the position of the shorting jumpers; about 2. Instructions for setting up an IC-9700 for WSJT-X and WSJT-10. When Q2 receives a large enough signal (negative-going) from an SWR May 15, 2021 · IF using time delay, then the goals is to make sure you switch to TX fast, hopefully before RF starts flowing. This one has higher insertion loss, and is a bit broader; +- 1db from 1220-1300MHz, and +-3db 1200-1320MHz before falling off. Internal fans, swr protection, alc circuit and LNA switching. Here is the all new custom 2 Meter Kilowatt Linear Amplifier built and designed by Jim/W6PQL. The NXP BLF184xr is another LDMOS device that can be used with this board. Most latching relays lock up properly after only 20ms, so this is plenty of time to get the job done. The children are all grown up now, on their own, and doing O. flow-solder service for LDMOS, if needed. 8V available on the same connector, via a 1. O. an output low-pass filter to comply with FCC regulations for harmonic and spurious suppression. I thought I could share pics of my old Yaesu FT736. 8 to 54 MHz amplifiers. An enable signal to the sequencer will produce sequential output commands to a RX relay, a TR relay, an amplifier and a transverter automatically, plus a High power amplifier for 1296. In the 1/2012 issue of Dubus magazine, F5FLN showcased his KW amplifier for the 70cm band. Sequentix P3 Sequencer. This changes allow to use the … N 37. This amplifier combines a pair of 500w RF decks, using input and output couplers; the device used is the 600w Freescale MRFE6VP5600H. Even a low power (2w) transverter will still produce Nov 21, 2018 · The sequencer has the following properties: Sequence time adjustable from 10-100ms. RFHAM is currently offering board kits for these 500w amplifier units, which contain the more difficult-to-get parts However, if you have one of the QRP 5w or 10w radios, this attenuator can be bypassed via rear-panel jumpers. Watch. Sell Yours. 9pf gets the job done nicely. I also purchased as complete assemblies, the input and output The XRF-286 is a wonderful part for use on 1296, and one of the few choices available for developing significant solid-state power on that band. Remove the cover plate on the UX-910 and set it aside. The two radios it was designed for are the Yaesu FT-817 and Flex 6500. Time Owned: more than 12 months. The two parameters affecting the input match were IDQ and trimming pads. 1 KW 2M LDMOS Amplifier. 0; after you make the initial MENU SET CONNECTORS adjustments on the 9700 listed just below this sentence, skip to this section. The fan is sitting on the rear panel and blows cold air into the cabinet. 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 The lock-out circuit was designed to operate a gate feeding the main power to the amplifier under control. Used & new. 0 Part 14 – New 1. TX inhibit freely configurable + 5V or ground for Hi / low inhibit. Delivering to. 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. Set the main band to 1296. I just posted a video on Youtube about a dedicated sequencer for the IC-9700. Each output is protected from transient spike. This one (on Ro3006) is optimized for 1296, yet will still work well for L. Asking $1495 shipped. The digital modes used for EME on 2m ( JT65 and Q65) require an amplifier that can sustain full output Oct 21, 2019 · The sequencer is essential to provide safe changeovers between receive and transmit and to protect the preamplifiers and the power amplifier during high power operation. 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). Even though this is a relatively small kit, it was a great ice breaker for SMT as I've had little experience in this area. In the DEMI display, the first few segments are green, the middle ones are yellow, and the last 2 or 3 are red; makes a nice eye Hello to the group. The 23 cm amplifier pictured here delivers more than 300 watts with 10 watts drive. Output voltage can be varied by adjusting the ratio of resistor values on the feedback pin. It's water-cooled, thermally stable, and very smooth-tuning. The lock-out circuit was designed to operate a gate feeding the main power to the amplifier under control. Instructions for setting up an FT991 for digital modes using WSJT-X. Un-grounding this port turns the switch back off. I-SEQ via the C-IV port of the IC-9700, will switch to transmit / receive, enabling / disabling LNA and PA depending on the band in which it is transmitted. This boost regulator is for those times when you have a 28v relay, but want to use it with a 12v source. PTT over 12V or ground. Hobbies other than amateur radio include wine making, precision shooting, golf and tennis. K. Here's how it works: Q3 is normally on during closure of PTT (transmit), and supplies power to the sequencer timer. 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. The In the 1/2012 issue of Dubus magazine, F5FLN showcased his KW amplifier for the 70cm band. com/relay_sequencer. View More Details. Turn the radio on. The built-in power supply has two power connectors and can be daisy-chained to other Pods. It basically combines the functions of several different boards onto one, saving some space and wiring. 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. The dual directional detector provides the signals for the SWR lockout, and also drives the LED forward and reverse power meter bar graph displays. Tube 1 - 7289 #1. World's leading amateur radio web site with news, technical articles, discussions, practice exams and more. First licensed in 1964; assigned W6PQL in 2003, which was the call first issued to my late father in 1938. Since new, it has been used only a few times to verify its operation. It happens like this: Great, Low Cost, Functional Sequencer! Time Owned: 3 to 6 months. 5k resistor, to a set of contacts on the relay that Functions as a direct replacement for sequencing fan and heat. 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. 5 ports 4 event sequencer US4ICI design This sequencer is designed for CO-OP work with VHF radio equipment including transceiver, PA and LNA. Remember, the sequencer 741's are triggered by a +12V impulse. With reasonably fast relays, often The first thing we need to do is set the transmitter output to a useful level. The transceiver switch (s1) selects the radio, and switches RF, key line, and ALC feedback. This next picture shows the output pulse driving a high-power Dow-Key latching transfer Jim Klitzing, W6PQL . Nov 20, 2023 · Sent: Monday, November 20, 2023 6:30 PM. 5 Kw Linear Amplifier. N 37. $1,000. Three events must take place in a specific order when PTT is activated and the system switches from RX to TX. Relay Sequencer High Current DC Switch L & S Band LNA Microwave L. Jun 2, 2021 · F1IOZ XML Subscriber QRZ Page. The Arduino and Shield operate from either 5V via the onboard USB socket or 7 – 20V (ideally max 12V) via the power socket / Vin connector. 1. 2016-12-24. Some changes were applied to the scheme. Fan data Sunon, 50 mm x 50 mm x 10 mm, MB50101V2 N 37. 99260, CM97an - former call: WB6MYC. It is the later, dual meter model and comes with a Meanwell power supply wired for 115 or 220 VAC. Automatic Transverter Interface. A copy of the data sheet can be found on the internet in Under those conditions the amplifier can operate continuously at 125-150w output. Rig: Yaesu FT-817. It includes a TR switch, relay sequencer, and all controls necessary to operate the amplifier safely and reliably. Click here for a parts layout photo. A 1. PRF/MRF13750 1296MHz power amplifier; 6-7w in for 600w + output, 50v @ about 22amps. When Q2 receives a large enough signal (negative-going) from an SWR Product Description. Prefer pick up and Anan 100D excellent condition plus extras for sale $2000 shipped to lower 48 Photos available In 2022 I sent to Doug W5WC to check over, update to P2 firmware, and install a 10Mhz TCXO daughter card. After considerable experimenting with prototypes, the final results were terrific; with about 40w drive, it can produce 600w (saturated), and covers the entire band (1240 to 1300 MHz). v6. This project all started due to my need to switch multiple transverters on my flex radio. Setting up the IC-9700 for WSJT-X. It is based on an Arduino and the "I-SEQ" software developed by EA7HG. Transverter Selector. However, if you want to lengthen the pulse to 100ms or so, R5 and R6 can be changed to 10k. For example, 2m transverter can be made to receive (and transmit) on the 10m band 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: Event 1 - While holding off RF output from the driver, switch the antenna relays over, and turn on the cooling fan (s) Event 2 This sequencer is designed for CO-OP work with VHF radio equipment including transceiver, PA and LNA. The main device's assignment – ensure the inclusion order of devices listed above with correct order and delays. In the DEMI display, the first few segments are green, the middle ones are yellow, and the last 2 or 3 are red; makes a nice eye Pod32E Enclosure. 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 The sequencer is connected to the CAT/Tuner connector on the back of the FT-897. The sequencer protects those expensive RF relays from damage. 100w 23cm Transverter. Adjust R61 for max receiver gain on 430. Relay Sequencer. Full Article. 5 KW LPF for 160-6m. 3 is the same as version 6. 5 Kw Amplifier. Here's a killer 1296 rover setup --- a small (FT-817) I. Ship to Store. Reinstall the UX-910 23cm module. It has a built-in sequencer and low-loss Dow-Key antenna transfer switch. service at 1268. click a picture to enlarge. 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. board spacer set, if ordering the basic kit. This stage is used to switch the output / input of the driving radio to the corresponding RX IF output or the TX IF input depending the current state of the relay sequencer. + $50 Shipping. Usually, only one or two of the input trimming pads were needed with IDQ set between 1. PTT + LNA + 4 switching stages. I purchased most [1] of the boards in kit form, rather than pre-Figure 2 — Amplifier rear panel. Figure 3 — Amplifier with front panel tilted down. Watch this gear and we'll notify you if it becomes available again. 8-54 MHz. Jul 8 - Jul 9. 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. It's a beautiful piece of gear built by Jim/W6PQL. It is an unmatched 26v LDMOS transistor that was once made by Motorola, and can still be found in surplus PCS amplifiers made by Spectrian. We buy, repair, sell and trade. 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. Comments? email to. W6PQL 2 Meter 1. LDMOS transistor, if ordering the basic kit. Feedline plans call for a run of 7/8″ Hardline Coax for transmit and a pair of LMR-400uF Coax cables for the H and V receive polarities. Although it was designed for 28v amplifiers, it can be used on 12v systems as well, or at any 100w 23cm Transverter. The use of the i/o connector is optional; it was added to the board to facilitate testing with a factory test fixture for the assembled-and Pulse width is about 50 ms. This board combines the functions of a relay sequencer, amplifier bias switch, temperature-controlled cooling fan and a high-VSWR cutoff switch. 500w 70cm Amplifier. 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). Even a low power (2w) transverter will still produce 200w output (the amp has 20db gain). In my own case, this is more than enough Relay Sequencer High Current DC Switch L & S Band LNA Microwave L. This piece of gear has sold. Switch 430 to the main band and refer to page 5-7. Includes the original box, manual, power cord and custom dust cover by Stan/W6ON. assembled. I’ve recently upgraded the Amplifier for our 2m EME station to one that can provide full-duty cycle operation at 1500 watts. The POD32E is 32HP with 1. The material is microwave substrate with 2oz copper both sides, necessary to handle the higher RF currents this amplifier produces. Pickup at South Loop. The main device’s assignment – ensure the inclusion order of devices listed above with correct order and delays. It requires 10 watts drive to produce the 150 watts output. Current at this port is only 5ma. Mar 19, 2023 · With the joys of tax time, and having multiple to 2m amplifiers, spare to my needs is this W6PQL design 1kw 2m amplifier RF deck with front panel LED bar graph, forward and reverse power metering, an amp meter, LED status lights and built-in T/R relay. Please read about our business and pricing here before continuing. I am downsizing and offering my W6PQL KW 144 MHz amplifier for sale. RFHAM is currently offering board kits for these 500w amplifier units, which contain the more difficult-to-get parts 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 amp has two blf188xr modules so it will loaf at legal limit. 1 KW 6 Meter LDMOS Amplifier. The relay sequencer is spilt in to two parts. internal sequencer and high VSWR protection. It has the essential features; a quiet, temperature-controlled cooling fan, sequencer, ALC output to the driving radio, output power meter, and high VSWR fold W6PQL 39 Control Board Functions • Sequencer – Prevents hot-switching the antenna output relay • DC power gate – VDD and bias (event 2) • Fan control • Reverse power lockout (high VSWR) • Over-temp lockout • Sequenced LNA power feed and drive power gating if required (event 3) Aug 7, 2017 · http://www. I use the TX Gnd to activate the sequencer via a DIL relay on the sequencer board. LNA power supply 12V directly possible. This switch box was built to allow the use of 2 different radios to be used with 3 different transverters. Resistor R5 is not used on this band. When used with two of the 1kw RF decks (1. Jun 9, 2016 · Description. 5 days ago · Mon Jul 1 02:46:07 2024. F. I started working stations off meteors on FSK441 and even a few stations on JT-65b. From early analog sequencers that send control voltage and gate to your vintage or modern analog gear to later arpeggiators and digital models with MIDI. With as little as 2 watts in you can have over 1000 watts out. Includes an Xtronic XDC-1 signal sampler with cables JFW 50DR-055 N adjustable attenuator DB25 breakout module for external connections W6PQL Sequencers For Sale. 2 with the exception of adding the 20-pin header connector, and substituting wire holes in place of the solder-to surface mount connection points. Warm air is exhausted through 8 holes on the front panel. Accomplishments to date: Distance: 315km - VA3TO in EN93SG to WW8M in EN72XF. I've added a small fan as I intend to run 1000 W through the filter. The circuit is built around the National Semiconductor LM2585, and uses the energy stored in an inductor to boost the 12v to 28. Version 6. To: frontrange6meter@groups. View similar gear. I. dk/seq/sequencer. oz1bxm. 6 and 1. 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 This leaves a total of 45 amps more available at any of the 3 outputs. Price $2,250. 8 amps. Korg SQ-10 Analog Sequencer. This gate can be a mechanical or a solid-state relay. I’ll only be listing the changes from the At 1296, it's only down an additional half a db from center. Designed with 2 switches for convenient use. The use of this Shield simplifies the overall construction and provides four switched events. Down East Microwave (DEMI) has a product offering that is a nice alternativeit's a LED bar graph display that uses a 20-pin LED package with 10 devices in it; the idea and basic design is credited to Dave (WW2R). 8 to 54 MHz Dual Directional Detector. 4 days ago · W6PQL Transverter Switch Build. If the input to the transverter is split (separate RX and TX lines, then you can use the transverter to hold off RF with our sequencer a s long as needed for the downstream chain of relays to settle. Uses a single 50v LDMOS transistor made by Freescale Semiconductor, the MRFE6VP61K25H. 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. The circuit solution basis was taken from W6PQL. 1 KW 222 MHz LDMOS Amplifier. In the radio's menu system, the external LNA is set to 'on' and the transmission delay set to 30ms. A high-VSWR sensor will lock out and bypass the amplifier if it senses a load VSWR greater that 2/1 (internally adjustable). Features multipoise mounting for easy and flexible installation. I've actually driven it to 400w+. These next 2 photos show the component selections for the low pass filters at 70cm Jul 29, 2023 · EME Station 2. Current Projects. LNA circuit freely selectable switched on in RX mode, LNA always on, LNA off. It is fully remotable including power up, standby mode, and follows radio band selection by bcd method. 1 KW SSPA for 1. Additional details can be seen in the write up of the 70cm KW amplifier. 10 GHz VUCC: 6 Grids from EN93SG. Subject: [FrontRange6Meter] Pics of my updated 736. Turn the radio off. 7nh and C1 to 3. Working with 4ms, Eventide is able to offer a low-cost, portable, compact enclosure that turns the Misha™ Eurorack module into a table-top instrument. io <frontrange6meter@groups. Their uses vary, from a simple gain block used to amplify low-level signals to more useful levels (pre-drivers), to Low Noise Amplifiers (LNA) used in receiving systems for satellite TV, EME, or weak-signal terrestrial work. Whether it is an MMIC, E-PHEMET or GaasFET, they are all similar in form, usually in a small surface-mount package. 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: Event 1 - While holding off RF output from the driver, switch the antenna relays over, and turn on the cooling fan (s) Event 2 A 1. 5mm from the source leads. 8 to 54MHz High Power Combiner Set. It was published in Dubus magazine, and looked like a worthwhile project. A configurable input attenuator capable of matching any driver ranging from 50 milliwatts to 10 watts. 8 to 54 MHz combiner set. Fifty Watts input for 900 Watts out, a bit more for 1 KW. 8 and 28v outputs, it only has 45 amps left to contribute. Sequencer has four outputs, which able to sink up to 50 V, 3 amps (P1-P4) and another output up to 30 V, 7 amps (P5) for LNA and RF Relays. Jump To This close-up shows proper component placement for L band. 8 to 54 MHz), the result is an amplifier that will just loaf along at 1500w with lots of headroom. I purchased this from W6PQL in kit form and really enjoyed building it. 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 Thor Motor Coach Sequence RVs For Sale: 233 RVs Near Me - Find New and Used Thor Motor Coach Sequence RVs on RV Trader. 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). I also route the +13. This leaves a total of 45 amps more available at any of the 3 outputs. 600w 23cm RF deck kit assembly instructions. 0. The 9700 controls both the switching and sequencing of the LNA. The first is the power take off stage. Own one like this? Make room for new gear in minutes. A transverter, for those who may not be familiar with them is a device that allows a radio to use frequencies outside of it's operating range. I added the W6PQL sequencer board, which I copied the instructions off of the internet from a "6" station. W6PQL recommends adding a fan if the low-pass filter is used at power levels higher than 500 W. 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. htmhttp://www. Two jumpers let you set one of three delay values (SW1 – ON, SW2 – OFF; SW1 Sequencer: W6PQL 4 event sequencer kit w/ W6PQL latching relay driver kit. When the sequencer is not activated (The radio is receiving) K1 is Feb 24, 2020 · The heart of the sequencer is an Arduino UNO and a four relay board (Shield) that fits directly onto the Arduino. Water cooling is required at these power levels. 3″ (33mm) of available module depth. For 13cm, changing L1 to 2. HIgh power LDMOS transistors: ART700 (700w), BLF188xr (1400w), MRF1K50 (1500w), ART1K6 (1600w), MRF13750 (750w) kits and assembled/tested RF Decks for 500w 70cm Amplifiers. Disable the preamp (remove 12V from port 1) Change relay1 and relay2 from RX to TX (port 2) Enable the SSPA (port 3) When PTT is deactivated, the system switches from TX to RX. Different inductor values are also used. 3 control board. html Mar 6, 2015 · Step 1: Description. an vg ii nq yx ij fo xt hm ci