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I installed new caps, removed turns from L1, L2, and L3. I checked the voltages on the IC chip (IC3 I things). Never did figure it out. Based on the other input I’ve received, I’m just leaving

Yes, it’s in the Bamatech metal case.

Hi Rob Is your QCX in a metal case? If so I may be able to shed some light as I had similar experiences, If it is not in a metal case then I don't have any solution for you! Cheers Ian G4GIR Sent:

Many thanks to Greg, W7GA, for pulling my QRP sigs out of the mud on 14062 kHz, using my QCX-17 xcvr with external freq control...and external filtering :0) 72 / 73, Bill, N4QA

I had problems when I ran it on iambic A, but finds mine works fine on iambic B. Not sure if that helps.

No Hans I think you are being quite a realist in your comment about a huff'n'puff kit. Afterall there is a reason that Cumbria Designs no longer sells the X-Lock kit which I now wish to essentially

Based upon advice from many helpful folks here, I decided to leave well enough alone on the low power issue and I have my QCX ready to go with a minor modification that added a momentary switch to the

Plenty of FT8 sigs...even a few JS8 sigs on 20m right now using the QCX-17. The attached screen shot shows my 'app' ;0) and RBN spots of the QCX-80 and QCX-17 under external freq control. BTW, some

Hi Mike. I get that a lot when my rig, PC etc try to become part of my antenna system, especially when using an external 'amplified speaker'. Could you describe your antenna & feedline...and any audio

Hahaha yeah Bill you're right. But did you notice my callsign? A PTO is a new game for the kid after all the vxo stuff gets old. Joe -VE3VXO

Just finished my QCX 40 kit and it went together well. Came right up with good alignment and output at 12-16v. Problem is cw sounds terrible through the headphones/speaker. I get a loud click at the

Hi, I have a similar problem. When I change the keyer configuration to IAMBIC (A/B), it works sometimes fine. Alternating dits and dahs, next time it works well. Also it seems to depending on the

Once conditions had faded here on 5000 kHz late this morning, playing with the QCX-80 became less fun so, I unhooked the??Chameleon?interface from the QCX-80 and connected it to the QCX-17. WWV has

Hans and Mike I would encourage Mike to try building his own H&P frequency stabilizer. Initial look at the design may seem a bit overwhelming for such a trivial circuit, but it really is not that

Thank you Axel, I find a lot of contradictory information on all sorts of subjects. My own experience with PFR-3 - has several 'polyvaricons' - suggests they are suitable at low power levels. That is

I worry about this, because using other tuning capacitors than these would be difficult ("big"). I did a search for W7ZOI's test and found this http://w7zoi.net/twofaces.pdf. According to page 19, he

Should have said "I'd say that's about right, but NO more". - Andy -

https://www.ebay.com/itm/1Pc-Inline-Switch-With-Female-Power-Cable-Dc-Connector-Switch-5-24V-KW/163621868702?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649 Reckon I'll cut off the doo dads

I've also characterized the LP filters (maybe 5 or 6) with my Siglent spectrum analyzer and had similar results. I think the best performance I had at a band edge was ~0.3 db down the worst was about

Look, Ma ! No mechanical rotations ! 3.7 = CW-R 4.8 = 800 Also tuning around, listening to AM SWBC stations. Audio is a bit pinched... Off camera, those three little wires are connected to pins? "1",