9 Oct 2021

10m WSPR TX

For the first time in many months, I am on WSPR TX with 500mW using my W5OLF stand-alone beacon. The beacon was turned on at 1300z.  

As 10m is moving to a decent F2 daytime DX band, it will be interesting to see where this beacon is spotted. 

I think more people are now on FT8 than WSPR, but I was surprised by how much WSPR there still was on 10m back in the Es season.

I have been spotted by local G4KPX (14km) so I know it is working.

UPDATE 1318z: 4 spots already with furthermost FY5KE (7110km).

UPDATE 1417z: Someone pointed out an error on the WISPY TX schematic. Where it shows 9t, it should be 22t with the oscillator collector resonating at 28MHz, the second harmonic of the crystal. 35 spots of me so far today on 10m WSPR TX.

UPDATE 1806z:  EA8BFK (2880km) has been spotting me as strongly as an incredible +11dB S/N. This implies he would spot me at uW levels.

UPDATE 1919z: 
 4 unique stations have spotted me today. The furthermost is PY1EME (9453km).

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