[Lowfer] Lowfer EAR

Garry k3siw at sbcglobal.net
Sun May 15 11:26:28 EDT 2016


Once the morning frost evaporated away lowfer EAR began coming in fine 
via daylight groundwave. Thanks J.B. for keeping something on to listen to.

Have removed the lowfer SIW slash coder and replaced it with an 
Ultimate3S/GPS unit that generates WSPR-15 at the same 185.185 kHz 
frequency. When fall arrives I plan to alternate between WSPR-15 and 
QRSS30/60 at 185.2993 kHz, switching daily at local noon.

The synthesizer clock is an external TCXO with a bang-bang temperature 
controller set to 40C and 1C hysteresis. That's stable to within 1 Hz at 
27 MHz on the bench. Plenty of GPS signal on the bench even in the 
basement but may have a problem when water pools on top of the beacon 
box. Time will tell how well it performs in the field.

73, Garry, K3SIW, EN52ta, Elgin, IL
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