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Am not fond of heat-stripping enamel wire. Yes, a hot soldering iron can *eventually* strip off the enamel. Applying solder liberally helps this process. But a mess of burnt residue usually is left,

Here is Charley's most recent summary.............. 73 Kees K5BCQ

Several years ago, one of the AQRP members developed a standalone transceiver for PSK-31 and later added SSB. It utilized the HobbyPCB Transceiver as the RF frontend and a STM32F746G for the

Hey There Greg! A length of #28 sixteen conductor ribbon cable will work.? How long of a piece do you need?? Reply off the group (or whatever you call it).? My e-mail address is on QTH.com.? I'll

Do you need to extend it? Can you test with it removed? If you do not need to see it then it will do no harm and will not affect operation. 73 Alan G4ZFQ

Easiest/ fastest/ cheapest? solution might be to make up two 7pin/conductor cables using a male and female straight header.

Hi Alex The optional aluminium enclosure has external dimensions 145 x 68 x 74mm. I can provide the cross-section diagram in due course. 73 Hans G0UPL http://qrp-labs.com

The easy way of tinning self fluxing enamel is to apply iron tip and fresh cored solder to the cut end of the wire. The solder reacts with the exposed copper, the coating then melts back and the

I hope that later that Han's gives an idea of the case dimensions and what volume is taken up with the internal circuitry in the full all band version. Why? just to get an idea if there is enough room

Personally, I would be a fan of keeping it simple.? I'm no RF engineer, but it seems that more complexity will add more cost and more things to break. I am REALLY excited about this radio.? I think

Hi Alison, You are quite correct, *I omitted to name every radio that had this feature*. ?I'll throw in another there was a sota / mountain top 'lite' design that announced frequency via a Morse

Alan G4ZFQ wrote: Simon, Sorry, I did not realise they are your instructions. I do not use Averdudess but I see you have EEPROM "Write" ticked on your illustration. But maybe that does not matter as

Simon, I suspect John needs to tell us whether he obeyed "2) Program only the provided .hex file (see above); do not change the Fuse settings, or other memories (e.g. EEPROM)" 73 Alan G4ZFQ

Hans, Please let me know if the instructions need updating. 73 Simon VK3ELH

Hi John I will email you off-list. 73 Hans G0UPL http://qrp-labs.com

Hi Tom The U3S doesn't support 4-line displays 73 Hans G0UPL http://qrp-labs.com

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

Hi, Does anyone know of a source for a cable to use as an extender for the LCD.? I am having problems with my kit and want to be able to probe underneath the LCD but it's in the way. Thanks 73 Greg

Hi all,?I was bored this afternoon…one of the few days since retiring last December.?So I played with the U3S and set up a message on the U3S that looks like a sine wave on page 38 of the

Alan, You must have missed the work KB1OIQ did to take Raduino/uBitx and add voice out plus low vision or no vision aids to that. Allison