VISAR Frequency Bands

[panserv]

Can anyone tell me if the 4 the Position of the Standard Model Number System for VISAR radios, stands for the freg. bands, in this fashion: Q=403-437, R=438-482, S=470-520 ?

I have seen guys selling R models, and claiming the radio is 403-470.
Is this a messed about with radio, or can it do this band with no signal degradaion?

As you can see I am new these items and would like to know more.
Thanks All !!

[wavetar]

I'm not at work to verify, but I'm pretty sure the Visar, being a Jedi product, will do the entire UHF band straight from the factory. The VHFs should do their entire range as well.

Todd

[RadioSouth]

UHF Visar bands are:
(R) 403-470
(S) 450-512

(there are no 'Q' bandsplits)
Hope this hels

[panserv]

Thanks guys, like I said I'm learning the ropes here.
Ok, but if the radio can do both bands , what's the point of having 2 splits? ( R and S).
Maybe it can do it but there is some trade off, like spurii or RX reduced sensitivity.

You guys can tell me if for the same model (VISAR) J=136-162, K=146-178 ??
Thanks again,
Vincent

[RadioSouth]

Vincent,
Radio is only capable of one of those
bandsplits 403-470 OR 450-512, but there are ways to get about +-10 MHz on the Visar rated
bandsplit.
The 136-162 and 146-174 VHF bandsplits you mention are the rated splits for GP-300/P110.
The Visar VHF (K) does the whole band 136-174 MHz.
JIm

[panserv]

OK, I am beginning to get the picture. One reason for my confusion was a:
"Standard Operating Procedure" paper I got off the Moto. site concerning Model numbers
after 3-19-92. Paper title is 20.40H.92
I wrongly assumed modern VISARS to fall under this paper. In it the bands are different.
One last Question for you ...
Does position 7 refer to the channel spacing:
4=12.5, 6=20/25, 8=12.5/25Khz, 9=variable/program.
Thanks guys,
Happy new year to yourselves and families,
Vincent.