[Elecraft] K3S vs. K3

[Bruce Beford]

> The improved SYNTH provides improved receiver noise and improvements 
> in fast CW speeds.  This enabled extended use below 490-KHz to 
> include the 630m and 2200m bands.  Receiver reception is limited to 
> above 250-Hz by the current KPBF3 so minor mods to it and the RF 
> boards extends this to 100-Hz.
 
250/100 KHz, not Hz. I _do_ have a radio that receives well down to 50Hz,
but the K3 isn't it...
Bruce N1RX