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Saber systems changing band
Posted: Sun Nov 13, 2005 7:34 am
by beaujo_fire
I did a search for this question and did not find anything. Maybe i didn't search right, but here is the question.
I have a system saber that is in the government uhf band 403-440 or whatever it is exactly. Anyhow, is it possible to change the bandsplit in this radio. I am assuming that I have to change the rf board and then blank the radio and reload a new codeplug in to the radio.
Is there more to it than that?
If so what else must I do?
Are the RF boards available somewhere such as ebay or do some of the member on here have one. I am wanting to change the radio to uhf 450-470 range so that it can be used for ham radio freqs. Or if possible I would even change it to vhf 148-160 range for 2mtr ham freqs.
I am not new to programing motorola gear at all. I have just never changed the bandsplit of a radio before.
Thanks
Dave
Posted: Sun Nov 13, 2005 7:51 am
by RESCUE161
This is all from the late Monty!
403-430============>438-470
NLE9431A Receiver=====>NLE9432A Receiver
NLE9461A Synthesizer===>NLE9462A Synthesizer
NLE9471A Power Amp===>NLE9472A Power Amp
The FDS NFE6061A covers the entire range from 403-470 Mhz
So , all you need to do is [ carfully ] install the modules, and
create a NEW RPF ( Radio Personality File ) for the range chosen
and it should work A-OK
Posted: Sun Nov 13, 2005 2:48 pm
by AEC
In addition to the previous post, you also can NOT swap modules from a UHF radio to a VHF radio, they are band specific, not to mention the UHF receiver module has a completely different design and will not retrofit a VHF radio.
The UHF models do not have a separate filter module in them either, which is located just left of the filter/detector/switch module on a VHF band radio.
Remember to NEVER over torque the rear cover screws, nor use longer screws that are supplied, if you are tepted to use a longer cover screw set, be prepared to buy a new synthesizer module as you will dig into the board and kill that module.
They can be repaired, but they are not easy to remove from the housing, there are several solder points to desolder, not to mention the CMOS static hazard as well.
Torque on the rear cover is 2.5 inch pounds MAX.
As stated, simply swap the required modules and create a new RPF and then run the radio through the service menu again, forget the old values, they are now worthless.
And remember to use DOS ONLY, and NOT in a windows shell, along with a slloooow computer, like 33 Mhz.
DOS 6.22 is the preferred program...in 'native' dos mode only.
One word of caution when swapping modules...do NOT bend those pins, they are phosphor bronze(I think) and will break if bent even a couple of times.
Have fun!
Saber bandsplit change...
Posted: Sun Nov 13, 2005 3:52 pm
by Tom in D.C.
David,
438-470 mHz Sabers are so relatively inexpensive today that you might be
better off just getting another radio, especially if the one you now have has a
nice case that you could put on the "new" unit.
Posted: Sun Nov 13, 2005 6:20 pm
by beaujo_fire
Thanks for all the replies. The radio I have has a case that is in very very nice shape. I was hoping to find just the uhf board to swap in there. Anyone on here have one laying around, otherwise I would just find another radio all together.
Thanks for all the input. I appreciate it.
Dave
Posted: Tue Nov 15, 2005 8:11 am
by phrawg
Hmmm.... You repeated the words UHF BOARD. The only BOARD that
is uhf is the main back plane board. It covers all ranges.
it is MODULES on the main board you need to change to change
the band split within the uhf band. Not like a jedi series where
there is a controller and a rf "board". Phrawg