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Re: PA problem on new QRSS TX, some progress ;-)


Hans Summers
 


Hi Eddie & all

Many many emails are hitting my email box, as well as the ones coming through this forum. Many topics to consider. So please excuse me if I am delayed, or confused, etc :-)
?
Unfortunately my U2 will not produce WSPR much above the stated problem
frequency of the V2 version of the PIC. There is a WSPR data frequency
missing at 28MHz and the noisy, spiky wide bandwidth signal already
described.
I have appealed to Hans for a replacement PIC.

On this particular point, Eddie - the "problem frequency of the V2 version if the PIC": this is NOT related!! The v2.00 version issue was with a SYSTEM clock over 16,777,216MHz - means the crystal frequency of the microprocessor, i.e. the 20MHz crystal. NOT a problem with the OUTPUT frequency setting. Furthermore, the problem manifested itself as incorrect WSPR timing, not frequencies. So that is entirely unrelated. Sending you a new processor won't alter that. In any event you have v2.01, as does 100% of everybody who bought a kit, because no v2.00's were programmed. That problem was found already during beta testing. Anyway you can see that by observing the screen at startup - it will say v2.01, which is the only version out there at the moment!?

So unfortunately, whatever problems we have to solve, v2.00 vs v2.01 is NOT the solution :-(

Also note that it is an AVR processor, not PIC :-)

Still contemplating...

73 Hans G0UPL


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