Sunday, June 7, 2009

Low Pass for abt 14MHz

Not much done today, radio-wise. Removed the lowpass-filter from the low-power oscillator and gave it it's own perf-PCB. Still thinking of the keying. The un-used gates of the 74HCT00 will be used for waveform-shaping. The hottest present idea is to use a transistor as attenuator (antennuator) and have it's supply switched. I hope in this manner, TX wont draw any extra current from the stabilizer, and thus, the oscillator's frequency stability remains unharmed. That's at least the hope...

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