In 20.37 16/05/00 , Rik wrote:
Question to Marco : what was your ERP last night (+/- 22 UT) ?
Would it be possible to decrease it with 3 to 6 dB, to allow to test
Spectran on a really weak signal.
It was at 10 mW. Now (tuesday evening, 19z) it is running at 2mW
level (250 mA into about 32 Ohm antenna Z, -30 dB gain).
It's difficult to regulate the power ... the final draws 2A at 1.6V of Vdd!
I will let it running until you like with the same parameters:
QRG 137.791, -792, -793 kHz (each minus 0,2 Hz on my counter)
Speed 30 s dot, 10 s space
Lower frq is "space", middle is "dot", higher is "dash".
[I propose a QRP award for the best bit-per-sec-per-km-per-mW
performance. Anyone willing to think the rules?]
If anyone wants lower power, let me know ....attenuators are available !
73 - Marco IK1ODO
[email protected]
Rivalta, ITALY JN35SA (N 45 01' 25.6", E 7 31' 09.4")
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