At 05:11 PM 08/06/09, you wrote:
Hello Repeater Builders!
I am seeking info on making an Icom IC-RP4520 (450-470
25 watt version) work on 442.825.
Background story: I am a member of the Shoreline ACS (near Seattle,
WA) and our primary repeater is very old and is failing. It needs
parts (tripler I am told) that we have been unable to find.
We were recently given an Icom 4520, and are hoping to use it as a
replacement.
Our repeater site is at a place called CRISTA here in Shoreline -
our antenna is 183' up on their tower. It has great coverage (when
it works!).
Any information would be greatly appreciated. Thanks!
-Josh KD7PAJ
The 4530 service manual is downloadable as a PDF from
the Icom page at www.repeater-builder.com
What is the primary repeater? This mailing list has over 4600 members, and
there are a LOT of junque boxes out there (for those unfamiliar with the term,
junque is high class junk). Someone is bound to have the part you need.
If it's a UHF Micor station (which are famous for eating triplers)
then I suggest
that you read this:
http://www.repeater-builder.com/micor/micor-uhf-station-tripler.html
That article references the UHF mobile low level amplifier.
Mods to it are covered here:
http://www.repeater-builder.com/micor/micor-uhf-mobile-lla.html
I think that if you repair the Micor that you will find that when properly
set up it will easily outperform the Icom.
Mike WA6ILQ
