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Hans, A little off topic here but what power out can you expect with 3x BS170 on 50MHz? I know QDX is not a 6M rig ( yet ). Would 1X BS170 be better than 3 (at 50Mhz) to lower gate capacitance? TNX!

I bought one of the Chinese tuners and sat on it for a while.? Eventually I decided I would rather have a Z-match tuner instead.? (see attached picture).? Most of the parts worked in the new

Sorry I meant 500mA current. Typo. Power dissipation rating 833mW "More powerful transistors" go hand in hand with higher device capacitance. Efficiency goes down, driver power goes up, heat

I was just digging into this. I am only 20 db down on 20M and 80M and 10 db down on 30M and 40M. Is there a way in hardware to adjust the phase of the IQ signal? Thank you, -- Colin Kaminski - K6JTH

I'm using WSJT-X 2.5.4 on Linux (Raspbian). For audio input and output, I use: plughw:CARD=Transceiver,DEV=0 ...in mono. And it works. Sometimes. I already made a couple of QSOs with these settings.

Hans Summers <hans.summers@...> wrote: It makes me wonder... do you think it would be a good idea to swap them with more powerful transistors? Not to get more power, but to get more protection

Sold

Hi Gary Not necessarily an oversight, but certainly a compromise. Adding current protection and VSWR protection can be considerable extra cost and complexity and many QRP radios do not include these

Dagenham Dustbins ( https://slangdefine.org/d/dagenham-dustbin-7c9.html ) anyone ? - 73 de Andy -

Caution!!! Voltage is not the problem with the QDX, and winding T1 with 2 or 3 turns has little relevance, other than to say that 3 turns enhances the exposure. There are two built in design

My father (WA8AED - SK) worked in the auto industry, Detroit, and said the same thing about cars, don't buy one made on a Friday or Monday. Friday, the workers have already started drinking and

Dean

Pay for VNC. Audio streaming is not available in the free version, unfortunately. Joshua

A new chat has been created: Hi, I am suffering with the QDX power on some of the bands. Perhaps you have an idea. Here is the pwr and low pass filters (LPF) per bands: 80m - 5W - OK-LPF1 60m - 5W -

I'm having a long weekend, so I'll see you next Tuesday ;-) - 73 de Andy -

Hey Guys, I am not a programmer but got it to work in the end. It really makes the QDX come alive. I hated not being able to hear what was going on with this radio. Now, you clever guys…how do I VNC

I'd translate that to "The courier had started drinking early". 8*) 73, Willie N1JBJ

doh, found i had missed the actual bit that says... 'You can find the program files for firmware revision 1.03 here ( https://www.rosenatthewheel.com/qdxsdr103.zip ) (the revision 1.04 version is in

Hello Milt I think there are some problems if the sweep goes beyond the specified band limits. However I have corrected this in a beta version that I am working on. 73 Hans G0UPL http://qrp-labs.com