I found those 4.224 Crystal oscillators (ex equipment) on eBay .
Divide 4224 by 32 (first 8 and then make the quadrature signals), and the LO frequency ends up on 132 kHz. Not bad for a 136 kHz SDR.
Opening on the 40 MHz band between the UK and Australia - 8th Nov 2025
-
Even though we have passed the peak of the current sunspot cycle,
conditions on the higher HF bands and the low VHF region are still very
good.
On the 8...
23 hours ago
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