A new chat has been created: I have built the kit with a GPS. The first time I started it I got the "Diagnostic Mode" in the LCD screen. I then configured it to see the GPS and display the GPS informa

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Hi I have just measured the power from my U3S, using an Rhode and Schwarz calibrated NRP 11, the output is after the low pass filter, and I get 75.1mW. I have not mesured the LPF loss but assuming 3dB

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I would like my U3S to cycle through 1. 30,10,12,15,17,20 (relays are 0, to 5 in 0=30m, 1=10m, 2=12m, 3=15m, 4=17m, 5=20m, as 10m (highest frequency), must be in position 1. if I read this correctly.)

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Got the kit built up aligned and working. Was seeing a good 5 Watts out at 15V. However, I noticed some intermittency in the output varying 0.5 a watt or so. This morning I can’t get more than 1 – 1.5

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I'm using one and have been very happy with it. I sourced mine from ThePartsPlace from k5nwa; here's their page: http://www.thepartsplace.k5nwa.com/index.php?route=product/product&product_id=61 price/

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A new chat has been created: I had the same problem and thought it was the lack of a dot memory but was assured it had one. If you try and use IAMBIC B most of your problems will go away. Jim N6JF Vie

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A new chat has been created: Anybody have a suggestion? I am out of ideas for troubleshooting my power amp. View/Join This Chat

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A new chat has been created: Dear Friends, when I switch on the QCX the final PA transistors became very hot. What have I done ? What can I do ? Thanks! 73 de mario ik2cmn View/Join This Chat

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A new chat has been created: hi all what is the full frequency range of the 40 mtr kit View/Join This Chat

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Hi all , hands up I've made a fatal mistake with my s3 ! I had it running perfect last night on test . Today I've added the extra bs170s and added the cable for 12v . You've guessed it I've managed to

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A new chat has been created: Hi All, i was wondering how you set up a U3S and a receiver and a single antenna as portable station. I am wanting to put a WSPR beacon at my second property which is many

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Did you have a load on the amplifier? Try it with a small speaker. If the cw reception is ok for you, you've achieved what you need. I use one and don't expect hifi ssb reception :) Steve Fabricant

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A new chat has been created: I attempted to upgrade the firmware on my QCX 20m from 1.00e to 1.00f. I am using the instructions from "How to update the firmware on the QCX using an arduino uno and AVR

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A new chat has been created: Hi all, Months after I purchased the kit, I found some spare time to build it. I think everything went fine during the alignment process. I am able to find a maximum in th

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A new chat has been created: After aligning the my qrx the readout suddenly quit. All I see is two rows light blocks. Voltage can be adjusted from 0 to 5 volts. No shorts anywhere and all soldered joi

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A new chat has been created: If anyone is looking at this chat, I'm setting up for 20m for the first session at 13:00Z I can't use 14.060 because of a continous solar panel QRM, so I will be a bit hgh

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A new chat has been created: Hi guys, I am comparing the current consumption of the Si5351 under the same conditions (same VCC, same 68 ohm load resistor, full power, unused outputs turned off, steady

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A new chat has been created: GD, QCX 2017 / 2 #2306 - worked vy well with abt 3 Watts until .... In QTH TA3 2019 suddently no transmit. But not the PA Transitors (changed and OK). Today removed Q4 / Q

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Installing the LCD connectors into a transceiver PCB can be a little tricky. Here's a method to do it right with no problems. 1 put the male and female pin connectors together after removing the test

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A new chat has been created: Hey all! After some months I tried getting my QCX ready for 20m. Troubleshooting didn't result any positive solutions. Here, some of the problems: No RF power (TX not work

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