Tom (M7XXI)Jan 12
Step 1 on the #qrp_labs #qmx+ done! All 12 diodes in place. Since last post I've bought some snips which have let me solve the problem of the #solder coming too high off the board and bridging to the metal case. I've also bought a desoldering pump which is extremely useful! There were some very close proximity pads, but nothing has shorted electrically that couldn't be removed and redone. Happy so far... but #toroids next (I think)... eek! #circuit #electronics #amateur_radio #ham_radio
Tom (M7XXI)Jan 7
I've just started the #QRP_labs #qmx+ transceiver kit. I've not done all that much soldering before so this is a big challenge for me, but this is the first three diodes in with no shorts or dry joints as far as I can see. I'm starting to feel like I have better control over the iron and my technique has improved on each of the diodes thus far. I'll keep updating this with the progress!
Show threadVenya (he/him/dude) 🇺🇦Dec 31

but seriously it does not get any better than this match on 40-meters

The antenna, handmade by N9SAB in Illinois:
https://www.etsy.com/listing/1362064414/ruggedized-2040-meter-ham-radio-dipole

#QRP #QRP_Labs

Show threadVenya (he/him/dude) 🇺🇦Dec 31

And by "reasons unclear" I mean of course user error

One of the slick features of the #QRP_Labs QMX+ I keep forgetting about is this handy SWR sweep test

The dipole I'm using has extensions that you can clip on to make it more useful for 40-meter. You need to UNplug them to use it on 20-meter. Once I did that, it was a great match.

The nice thing is I could still leave it attached physically but electrically unplugged, and so easily switch between 20 and 40 meters.

#QRP #AmateurRadio

Carsten G0SYPDec 1
Gave the #qrp_labs #QMXPlus a good workout in #CQWW CW. Our Multi OP at G5O was cancelled short notice so I put up a random length Inverted Vee on Saturday afternoon. Missed Sunday morning as well so mostly worked to the west.
Carsten G0SYPNov 28
It's alive #QMXPlus #qrp_labs #radio #homebrew
Carsten G0SYPNov 27
Finished the front panel assembly and the GPS module tonight. It all seems to fit together. I don't dare powering it up yet though. I'll get some sleep and do some reading first. #QMXPlus #qrp_labs #radio #homebrew
Carsten G0SYPNov 24
Connectors are on on the main board and started on the front panel board, too. #QMXPlus #qrp_labs #radio #homebrew
Carsten G0SYPNov 23
All inductors and transformers are on. No more winding to be done. #QMXPlus #qrp_labs #radio #homebrew
Carsten G0SYPNov 19
Another step forward. All LPF inductors are on. Probably need to distribute the windings a bit better but that's for another day. #QMXPlus #qrp_labs #radio #homebrew