In addition to mounting all but the inductors and transformers for 80m the Warbler and a few more components for the 40m WSPR Warbler I have built a RockMite 30, for use as a Grabber RX only for 30m.
The evening welt with getting the Local oscillator (10.140MHz Xtal) down to 10.138.700. This is done by bypassing the frequency switching, using a simple serial connection of a 10uH inductor and a variable capacitance ( 12 - 30pF ).
The input Xtal filter will be added later, after stability test of the local oscillator, and will probably be a simple SIngle Xtal tunable filter.
Tomorrow will be busy with some non radio activities, so progress will be much slower than it has been this week end.
TX5EU
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TX5EU in the Pacific BG66ED has been coming in with remarkably good signals
from Austral Island, even now with the SFI dropping just above 100. The
radio p...
1 hour ago
Interesting... one may also consider penning down a crystal... hmmm, I will look into this.
ReplyDelete73, Joachim