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I well remember when you could walk into a WH Smiths newsagent in the town high street, back in around 1982, and touch a real Sinclair ZX Spectrum 16K RAM computer with its squiggy rubbery keys. I was

I've had this linear bench supply for 7 years with adjustable voltage and current limit. It's what I use first for everything I build.

Oh do come on guys! It is simple enough to make one, make an analogue one (with a transformer) [email protected]> wrote:

I'm actually super excited about getting BASIC on my QMX. A surprising language choice at first sight maybe, but it makes sense in the context of the limited resources. I didn't know MicroPython was

Hi John Yes, exactly... nobody is suggesting writing a large general purpose application using BASIC or QDOS. It's for scripting the behaviour of a radio and to some extent, customizing the radio and

Hi all, My 2d’s worth. QDOS is extremely limited in the number of available commands compared with other languages. BUT I have been using it with a U4B and have the following comments: It is very

--------------------------- Hangul CW Decoder by DS1TZE ---------------------------

You could just try 'Morse Expert' on your Android mobile. It is very good at decoding morse from the audio output from your rigs speakers. https://www.youtube.com/watch?v=seYjG9PY6xQ

Hi all, next Monday, September 16th, is the next *QCX WARC Party*. See https://www.qrp-labs.com/qcxmini/qcxwarc.html ( https://www.qrp-labs.com/qcxmini/qcxwarc.html ) for all info Join the discord

OM Derek Brown WF4I et al, I have just ordered this module suggested by OM Derek. I am in urgent need of a current limiting PSU. I love to maintain my equipment. BTW is there any chance of getting the

Alternative is to use volume control from truSDX, hold right encoder down and turn right or left to change band. I’m sure Hans will produces neat solution --------------------------------- 73 de

I have not tried this yet, but it may be possible to feed audio from the other transceiver to the node *C40/R51/R52* (see schematic) Use antoher 100 nF cap in series, since this node is at 2.5V DC !

I'm finally getting around to assembling my QMX Rev. 1 transceiver. Everything went splendidly right up to the T501 RWTST winding instructions. It would help very much if the photos in

One more solution is the one created by comunity for usdx clones. Tune the frq Up with vfo, if you doble press after, band changes Up. Tune the frq Down if you double press band changes Down.

Don. I see you’re in Chandler. I’m in Peoria. I’d be happy to look at it for you if you like. If you’re not coming out this way for some reason you could mail it to me. My address is good on

I use a buck-boost converter with a 12V LiFePO4 battery:

Under stand Ron? , will try and do that? ,? here,s my problem , i paid for a Assembled working radio and that`s not what a have ,? not very happy with QRP LAPS sorry just venting so i`m not very

I posted this a while back. 2.17 Installing power supply boards. I think this is easier. Execute steps 1 through 5. Skip step 6 (solder right angle to main board). Execute step 7 (solder top side to

Hi Adam, Practice mode is very good as it is. The background sound which is very useful in learning in a real life context is one of its best attributes. Most of the other changes, you can easily

Hi Don. If it’s deaf and mute both you need to first check the low pass filter. Do a continuity test from the center pin of the BNC connector to the C29 end of L3. If that has no continuity check