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Still I couln't solve my second (Hi2 in the table) QDX (Ver4) Hi band 's power loss problem on 11m and 10m 73 muhsin TA1MHS

added 30m for QDX (Ver4) Hi bands

Hi I'm away from home but with all my QDXs in a village Had enough time to make QDX comparisons hope it helps - I had problems with the dummy load I have with me here (it wasn't good for 50MHz) -

I originally read that as ELVIS had a bad day. Maybe he's swapped his "working in the chip shop" job for working with Hans ;-) -- - 73 de Andy -

This will show you some your frequency info for now... https://wspr.live/gui/d/0SsoVzUZk/rx-station-frequency?orgId=1&var-sign=TI4JWC&var-band=7 Mike W9MDB

Yes... The program waits for 2 minutes for all the WSJT-X instances around the world to report their spots. It does take that long. Sometimes more. But waiting 2 minutes seems enough. For example if

Invest in a U3S, which is a practical 0-50Mhz multimode *beacon* TX. Offers WSPR / JT / CW / Hell / Opera / Pi4 etc mode with no need for a PC. Then you attach the GPS unit to it for freq calibration

John, It's only reporting on 20m and is updated every transmit cycle of 2 minutes. Best to just stay on 20m for a while and check TX errors soon after you have transmitted. Does that

John Note this is a 2-minute window. You show as -5 on 20m but not every 2 minutes. 73 Alan G4ZFQ

I am now TX & RX WSPR? 20, 30,40 meters. My spots are not showing up on the https://qrp-labs.com/images/wsprnet/rxerror.html to learn if I need to make a frequency adjustments. Please advise me if

Another similar way to generate accurate offsets from a base frequency is to manipulate the solution P1, P2, P3 terms directly.? I have been using this method just recently and I think it works.?

I have received what might have been one of the earlier high band QDX kits. It was missing the (expected) 30 pf cap, and insufficient 28AWG wire (also not a surprise). However, the kit was also short

BTW the pll in the 5351 should (in theory) attenuate some wide band input ref noise, but I recall from an earlier project that using the nb3n502 to multiply 10 to 25 MHz wasn't as clean as just

I'm on the road today,? but tomorrow will share what data I have from my measurements on the pll. It definitely adds some broadband noise. The Qdx works well with my mod but I haven't evaluated the

Hi Mike, there are many such cases, but unfortunately they are plastic. The case should be metal, preferably aluminum. 73 Zdenek

I know a bit more than I did before. ?And, I'll dig into the site info to see if my old flakey gray matter can figure out how to connect it. ?Many thanks.

Hi Pete Will email you 73 Gerry G4OJF -- gerry

Finishing up sharing this repair experience, not because I claim any great sherlock holmes detective ability, but in case it inspires anyone else like me who has been away from the hobby for a few

Hi Gerry, I have one spare. Nearly new (some dust hi) with all the knobs & extenders, buttons etc. Only 2 machine screws missing, 3mm I think. Purchased from BMA Tech in 2019, ?34.50. Are you

Hi Peter Thanks for the link. 73 Gerry G4OJF -- gerry