Radio won't take narrow band freq

[Ett1033]

I have a radio (brand name withheld) that won't accept the frequency 158.7975 or 154.2725. It defaults to 158.800 and 154.275. Any ideas why? It takes other narrow band frequencies such as 154.2875. What am I missing here? Aren't all radios recently manufactured supposed to do the narrow freqs?

[Tom in D.C.]

Your radio is probably capable of doing 12.5 kHz channels but not the even
narrower 6.25 kHz splits, at least that would be my first guess.

[Pj]

Without knowing the make/model of the radio, the question cannot be answered properly.

[thebigphish]

he probably didn't want to be modded down or bagged for posting a kenwood model # on a moto-centric board...

[Vern]

Same thing happened to me, I think there was some confusion early on in the rebanding process. The manufacturer of my radio used 6.25 khz channel steps on VHF, instead of 7.5 (or 2.5) khz. The radio would only accept freqs that were a multiple of 6.25 khz.


Vern

[Tom in D.C.]

This thread prompted me to look closely at the setup boxes on the
Vertex programs I use for my two VX900 radios. One is VHF and the
other is UHF, and each shows a different set of channel steps, with
one being 5 and 6.25 kHz and the other being 5, 6.25, and 1.25 kHz.
So it looks as if one radio would be able to do the 7.5 kHz split where
the other one wouldn't. I'm going to ask my friendly Vertex dealer to
try to explain to me what is going on, but it looks as if the moral of
the story is to check carefully before you buy anything these days.