de draaggolf ~~~~~
Joachim's Ham-Radio and Radio-Frequency Blog (A Solderful of Secrets) - from Longwave to Microwaves
Wednesday, May 6, 2009
captured
Jan (PA9QV) captured my signals...
Technical info on the transmitter:
5.0688MHz crystal oscillator (74HC86) pulled by a rectifier diode
active doubler (same 74HC86)
10.140MHz crystal as purity filter
74HCT240 as keyed PA
smt-Hell and QRSS-CW generated by a PICAXE-08M using PWM
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