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Billy, as well as watching Hans' video, maybe look for the pinned comment that lists all the tips and what time they appear on the video. I plan to have this list handy when I start my build. 73,

Well, you had at least two VERY HAPPY builders reporting in the emails today ... don't be so negative !! Follow the instructions carefully and either use a ZM-2 or equivalent manual tuner to tune

who picks these oddball spinoff company names? imo, HP THREW AWAY their entire fabulous brand name and market confidence when they rebranded to 'Agilent' ...

Billy, You can do this!? Just be careful during assembly to 1) remove all the enamel from the toroid wires before soldering, 2) check the continuity between VCC, VDD, and +12 against ground prior to

Just one more comment on the excellent "52 tips for building your QMX successfully" youTube video: With regard to the BNC connector, if you test its output to ground, you will see a short even though

Hi Billy, my QMX worked just fine from the first power up.! There are still a few bugs that Hans will smooth out over the next firmware updates.? AGC, eratic volume control...to mention a few..?

This prototype can be used only on 6m! 6

Bob, Jim, et al, Further to the 8/6m prototypes I previously posted, I’ll now post the details of an 8m only prototype. Schematic Analysis Implementation BPF is 11t on an T50-6, squashed up so

Pacific Antenna also offers a "Mini SWR Indicator Kit" for $5. Works great. 73 Kees K5BCQ

Just take your time Billy.? I spent about an hour a night for nearly a week.? QMX #332 worked right off the bench with no problems. Go slow and double check everything as you go so there is no

Billy, my QMX worked properly from the moment I fired it up. 100% smoke free! Just some minor screen issue that was my fault, and I soon corrected. One of my friends, who ordered a QMX kit two or

Actually I stuffed up again. The 8/6m QDX LPF Is this 6

Before making a radical change to the PA transistor (BS170s) thermal design it is necessary to fully understand the the thermal parameters.? As Hans ha pointed out: * The six layer board conducts

Hans, Well, you did it. 1. I will carefully read the messages from now on - many have some germ of good info. 2. Right, why waste time posting when you have better things to do. 3. Telling

If you want to send it to me, I’m sure I can help out. ?At this point I’ve fixed over 20 QMX rigs. ?Contact me for details of where to send it.

Schematic that was missed off last email Next I’ll send the 80m only QDX Sent from my iPhone 6

I believe Chris is correct. Me personally, I have never added a heatsink to any of my QCX, QCX+, QCX-mini, QDX and QMX, and I have yet to burn up any BS170s other than that night earlier this year

Sorry iPhone sent by a light touch of finger by mistake. Bob, Jim and others, Here’s a pic of the 6m prototype. Firstly, I printed my own T50-0 toroids; secondly, you’ll note the T50–6 in the

Yes try GPT4 its much better, and as from yesterday they are offering an Enterprise edition that keeps all company data private and safe. Its loads better than chatgpt but costs $20 a month, well

Before making a radical change to the PA transistor (BS170s) thermal design it is necessary to fully understand the the thermal parameters.? As Hans ha pointed out: * The six layer board conducts