[Kenwood] TS-440 Phase Noise

[ken.d.brown at hawaiiantel.net]

The TS-440 is a nice radio, but compared to more recent rigs it has high 
phase noise. This raises the receiver noise floor when operating in 
crowded conditions, such as in a contest, and can also cause 
interference to others when transmitting. I wonder if anyone has done 
any work to try to improve the phase noise in a TS-440? I am guessing 
that some time constants could be changed in one of the PLL loops to 
reduce the phase noise, but there would be some kind of trade off. 
Perhaps tuning across a band would be slowed down or TX/RX changeover 
time would be increased. If you know of any such attempts to reduce 
phase noise on a TS-440 please tell me, or tell me who to talk to.

Thanks, Ken N6KB