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Author Topic: WANTED: PWM Generator from Commercial Tube BC Rig  (Read 1294 times)
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K1JJ
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"Let's go kayaking, Tommy!" - Yaz


« on: January 01, 2021, 02:33:47 PM »

Anyone have the PWM generator from a BC PWM rig?  The PWM generator is likely an all solid state board and drove a tube modulator like a 3CX-2500, 4-1000A, 4-400A, etc.

I need a more advanced method to handle closed loop or analog compensation of the PWM modulator to enable cleaner pulses below -90% negative.


Thanks.

Tom, K1JJ
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Use an "AM Courtesy Filter" to limit transmit audio bandwidth  +-4.5 KHz, +-6.0 KHz or +-8.0 KHz when needed.  Easily done in DSP.

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