In the dim & very distance past I think the GPS validation feature in either the U3S or the QCX (it's too long ago.....) caused problems even when used in conjunction with the Labs own QLG1, If your U

#u3s

I fully expect I'm in a group of one. But especially as the QCX was first requested and now being offered as field optimised....... Imagine the gods gave were kind hearing the rarest of rare DX statio

#poll-notice

I think Hans had stated before in the past & repeated in https://groups.io/g/QRPLabs/message/50684 The firmware will be common to all QCX form factors. With no available program storage space for alte

#qcx

https://www.qrp-labs.com/images/qcx/assembly_A4-Rev-4f.pdf pages 109/10 Alan

#cat

If you are already logged in a direct link should work;- https://groups.io/g/QRPLabs/files/ARRL%20Basic%20Antennas.pdf Alan

#antenna #qrp-dx

I read that the QSO party is neither QCX or QRP exclusive. Work any other none QCX QRP station or let the QRO big boys do the heavy lifting with their fancy radios, power up to their licence maximum a

You had to pull /TX line down during the bias set up. You still have this in place? Alan

http://shop.qrp-labs.com/kits/qcxptcxo?sort=pd.name&order=ASC http://shop.qrp-labs.com/kits/qcxpdev?sort=pd.name&order=ASC Alan

+1 Gary. Lets not forget late last year there were requests made to make the QCX more accessible for a wider cross section of first time & less dexterous builders. Hans has spent the time to incorpora

Hi Phil, There is a paper on the web, just that it's somewhere! from memory it's written by one of the well known amateur beacon builders or possibly one of the microwave guys, early on with the rapid

Guy, are you sure the GPS kit was not purchased around mid 2018? In which case it's possible the GPS module has the wrong firmware from manufacture, see http://qrp-labs.com/qlg1/gps2018.html Alan

Hi George, The manuals :-[ have it printed in Red / Black & White. As you are using the sotabeams TX I guess you have constructed the PA according to the simple assembly manual? " 4.2 Bias adjustment

You have the advantage of having the item in front of you, there is little advice that can be offered by third parties without knowing the basics such as voltage checks. Hans provides you a table in t

Hans, Was this really posted on the QRP-Labs group? or is it a ghost in the yahoo workings Thanks for your efforts producing a new kit, looks a little different to the dead bug proof of concept. With

U3 and QCX requires it to be added to the firmware I think Hans already has already experimented with FT8, in addition a code module was written by one of our members. The problem may be more of a tim

http://wsprnet.org/drupal/node/8244 Reply No#7 of the thread? Alan

Not being following that closely, but I think noted at the time he was an external programmer? One of the "fuses" select internal / external clock oscillator for the MCU. The blank ATmega chip is defa

I think it's a personal choice. Just like your favourite OS or Auto brand. Much is discussed about what construction to use, the IC socket supplied for the uPC in the QCX kit is of leaf construction,

Do you see supply volts on the PA FET(s) Drain pin, It's supply is fed off a separate pad on the PCB maybe you have wired it for something other than the same 5v supply for the logic? Does the PA curr

https://groups.io/g/QRPLabs/message/39815 Alan