Hi all,
I haven't used a lot of the advanced features of the tmv71a yet, but I have 
noticed that this rig is a lot less sensitive to intermod and more sensitive 
to out-of-band signals as I'm using my rig on a diskcone antenna.
Tom, the channels are numbered that way by the National Weather Service.  I 
think the first channel they used was 162.550.  Channels 4-7 are in order 
with the exception of channel 3 which is 162.475.
Bob, [log in to unmask], K8LR
Skype Name: bobtinn
Life is full of challenges, that's what makes it interesting!