You guys who own 590SG's , will they do 4 kHz audio on TX ?
TIA
Kenwood TS-590 stated bandwidth is:
1. 10 to 3000 hz TX voice bandwidth
2. 10 to 3000 hz TX DATA bandwidth
3. 00 to 2210 hz RX voice bandwidth
4. 50 to 2210 hz RX DATA bandwidth
Anything over that is wasted bandwidth for most receivers cannot pass a wider bandwidth. The TS-590 is not a TS-2000 that could transmit up to 5000 Hz bandwidth.
If you look at most waterfall signals the majority of the transmit audio power is under 1000 Hz.
Why do you need 4000 Hz bandwidth?