thanks Phil. I have about 15 RPi lurking, from the first B production run to the zero, zeroW, A, A+ and now a 4gb RPi4. I'll have a look at your github tomorrow. I have RPi3B+ running with WSPRDAEMON

???

Thankyou everyone who replied. It turned out to be a faulty USB Dongle. I think it was occasionally outputting a spike, no idea how, that was killing the serial input pin on the progrock. Replacing th

OK, I've been playing with a Progrock today and I've worn out my fingers typing in repetitive frequencies over and over again to adjust for drift and signal requirements. Please, come the next softwar

Interesting. Now, how do you do calibration with the adaptor ?

Your comments appreciated Hans. Adding a bias-tee circuit to QRPL RX board ... comments? stay covid free.. 73 Mike

Fluke 77 and Aneng AN8009, Fluke on bench, Aneng in pocket The Aneag is only about £20 and measures far more things than I could ever want. The Fluke is ex-military ( marked E.P Labs ) purchased for £

Oh Bu***r, On a new build QRPLabs RX+Progrock mounted on sheet metal base, pcb's grounded through brass nuts and bolts to the base. . I've just killed two Progrock controller chips in quick succession

Good, with that attitude, we don't want you.

Thems them.

Looked at in that way, grid frequency is useless for accuracy. the DS3231 can be programmed for 1pps,is temprature compensated, but does drift over a week or so.

Greg, what is the point of sending a post to someone, who is'nt identified, without quoting anything to which you refer?

Has anyone fitted an agc for the qcx? istr a mod, but unable to locate it. seasons greetings to all, 73 Mike G8NXD

I imagine that hand capacity effects would be a major issue.

but the DT's make sending good morse a little difficult

Congratulations on yet another hit kit. Seasons greetings to you, yours and your employees. vy 73 Mike G8NXD

A good point, Richard. I have occasionally seen the regulated voltage change on the LM2596 boards when handling it, Its probably when fingers jumper across the Vreg preset pot. It could also happen if

What converter was it ? I hav'nt seen this with the MP2307 or the LM2596

I vote for 'Elite', I already have 'Snake' on my phone <vbg>

could this be down to incorrect setting of clock bits while programming?

#qcx #qcx40