Since spot is used to zerobeat a particular signal, the 10 Hz rate is necessary. I like the feature, and always thought is was done that way on purpose. One needs to know it will do that, however. Spot function needs no particular tuning rate no more than sidetone! Dan / WG4S / K2 #2456 <snip> push SPOT, the receiver tuning rate goes to 10 Hz. </snip>