While QRN levels were a little elevated, I was able to copy some of the WG2XFQ “Fressenden Event” AM Christmas broadcast last night. Near the end of the audio recording is the CW ID. Brian is running a vintage 1920 MOPA with Heising modulation.
WG2XFQ WAV Recording (22.6 MB)
I recently modified a spare “F” HRO-5 coilset (500-960 kc) to bandspread the 630M band, providing 10 divisions per kilohertz now.
There is some frequency drifting on the order of +/- 20 Hz, but I wanted to see how well the receiver would hold up decoding WSPR stations on the band. Continue reading …..
Running a newly built 1930s style MOPA transmitter in the Stew Perry (TBDC) Warmup this evening. The transmitter is running a 89 Clapp oscillator, 802 buffer, 811 final; one of my favorite tube / circuit lineups. Output power is approximately 75W. The rig is keyed with a 1962 Vibroplex Champion.
Thanks to everyone that answered my CQs!
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