Modifications for the Kenwood TR-7730
TR-7730 Transmitter Freq Response, Voice or DTMF
Operator complaints of insufficient lows in transmit, or faulty Autopatch
operation traceable to incorrect twist (high to low tone group balance) may
be remedied by changing two capacitors at the mic amplifier input.
On the RX/TX unit X44-1450-61, change C78 and C81 from 0.1uf to 1.0uf, 35v
tantalum (CS15E1V010M) to increase low frequency transmitter frequency
response. Adjust Deviation (VR3) or mic gain (VR2) as necessary.
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