My apologies if this has been asked and answered already. As I await my QCX Mini arrival I wanted to have suitable power supply ready. I've seen a few posts around power supplies and they seem to be f

Hi Everyone Mini build and basic alignment all good. When I tried to connect the QLG1 to adjust frequencies looks like the regulator failed short-circuit and sent 12v down the 5v line. Didn't see any

Glad to say my QCX Mini up and running now. I had a bit of a wait from the supplier for the NE5532 chips, but the replacements for IC8 and IC10 went in nicely and the tune up was a snap thanks to the

Some help please, I am having an issue with the alignment of a recently built QCX mini on 20m. I can not get a tone for the BPF peak, my level is at a constant 3 with no audio coming from the headphon

Hi all An update on the topic discussed last month - the rules have apparently changed again see https://www.gov.uk/government/publications/notice-143-a-guide-for-international-post-users/notice-143-a

I built this little guy just for the fun of it, never planning to keep it. I have many other radios. Built by experienced builder. Works as expected. Output 5.08 watts with 12VDC input. I'll sell it f

A few years back, someone posted an STL for a 3d printed case for the QLG1 GPS board, does anyone have a copy of the file, or do I need to design one and post it? 73's Denis KC6AUP

I am adjusting the audio phasing in a QCX+. I get a good IQ balance and a good Low null, quite deep actually, but the High phasing adjustment runs out of pot at 50k. Measuring across R21 with the rig

Checked a web SDR receiver last night to see what 40m was looking like. A strong signal was found coming from KM1CC. Quickly turned the rig on and waited while he worked a couple of stations. When he

Anyone have the turns count on T1 and L4 for QCX on 10m and 6m??? The lpf toroids are easy enough (ultimate 3 series). and any other cap changes neccesary?.

Hum, I have installation of Windows survived in work environment for 10years straight, no one of my Linux "evangelists" colleagues was able to survive that much, reinstall please(and repeat!). Most pr

I had a great time building my 20m QCX-mini, probably my best soldering ever, but I am unable to Adjust the I-Q Balance or Audio Phase Shift. When powered up the screen works great, I am able to navig

I got my QCX+ 30m completed last night. I looked it over a few times looking for issues and finally powered it up. As expected the screen needed adjustments and I now have a clear screen. It asked me

Hi to Hans and the group, Whilst familiarizing myself with the various parts of the mini, I found that IC2 is MIA. The anti-static foam is there and the socket is seated in the foam. However, no sign

LM4562 $1.60 quiescent current 10ma, primo low noise op amp used for ic5 NE5532 $0.52 “ “ 8ma, jellybean quality audio op amp good enough per Hans OPA2277 $4.39 “ “ +/- 0.79ma, hi quality audio op amp

If someone has ordered a bunch of FST3253 mixers and has an extra you could spare. I'd like to buy it from you. Send me a direct message or to my email on QRZ.com. Thanks. -- 73, Dan - W2DLC

Class E, or not Class E, that is the question: Whether 'tis nobler for the FET to suffer The swings and transients of outrageous voltage, Or to take amps against the Q of networks... (with apologies t

Hi All, I am sure this is a simple question that I am confused about. Anyway, in QCX+ 3.64 says ON/OFF switch should be back square to the left like the picture, right? Just want to be sure I understa

Hello all, I need assistance placing the QRP LABS TCXO Module on the Synthesizer Board. This is not the Fox Module or similar I have searched this Forum and the QRP LABS Website for information I am n

Hi Hans , I recently aquired a couple of the 9850s is this compatible with the v fo kit I have which is running version 1 software as a direct plug in. Thanks John G4DXY