wrote in message
ups.com...
- Wondered..

Have a non SSB portable that whistles in a descending tone as you tune
in a station..
Is this the same thing as sync detect??
If not, is there a name for it?

It could be a synchronous detector. If the tone rapidly disappears as the
pitch gets very low and the signal is clear and stays that way (for a stable
signal), it is. What make and model is the radio?
Knowing that, someone would be able to answer your question definitely.

Tom