----- Original Message -----
Sent: Sunday, July 11, 2004 10:01
PM
Subject: RE: [Repeater-Builder] GMRS
Repeater Info Wanted
Also Matt, since GMRS is limited to 50 watts, you can
use a mobile type duplexer, like a Celwave/RFS 633 series, which I've seen
for less than $100 on ebay, and have even seen some around $50. If you can
get the mobile radios cheap at a hamfest, and a mobile duplexer cheap, you
could probably set up a GMRS machine for less than $200, including crystals,
if you use a crystal type radio, since you already have an antenna and
hardline.
Kevin
K2KMB
There is nothing preventing you from using duplexed
mobile gear like Micors or Mastr II's, or Motorola Maxtracs/Radius type
radios as GMRS repeaters as long as the station ID'ing is handled
properly.
Kevin
K2KMB
Thanks Eric. License I Know is required. Issue that is at hand, I
think you answered, is type of equipment allowed. I have read issues
where guys are building them out of GE and Micor units, and that is what I
want to know if this is allowed, or must it be certain types of
equipment. Antenna and cable is already there, 7/8" Andrews and DB 8
Bay antenna, duplexer is something I will purchase after I decide on the
repeater.
Mathew
Before you can put a GMRS repeater on the air, you must have a
GMRS
license. You also need to read and understand the applicable FCC
Rules
in Title 47 USC Part 95. The current edition of Part 95 is
dated
October 1, 2003.
A GMRS repeater should be FCC Type-Accepted
for Part 95 operation, but
you can use a repeater that is Type-Accepted
for Part 90. This
requirement rules out any repeaters built from parts.
Some repeaters
that are relatively inexpensive include the Yaesu
VXR-7000, the Kenwood
TKR-850, and the Motorola GR1225 or RKR1225. The
important features to
have are a built-in ID-er and the capability to
decode CTCSS or CDCSS.
You will quickly learn that a good antenna,
duplexer, and feedline cost
more than the repeater.
Although the
Part 95 Rules limit GMRS power to 50 watts, there are some
high-powered
"pirate" stations operated by unlicensed individuals who
ignore all of
the rules. I suggest that you not seek advice from
such
people!
73, Eric Lemmon WB6FLY (and GMRS
KAF4211)
w9mwq wrote:
>
> I have been looking
into setting up a GMRS repeater for community
> access, and have been
doing some reading on them. I am coming up
> with conflicting stories
and need to know. What can be used as far
> as a repeater. I am told
it has to be a certain type, then I read
> where they are building
them out of spare parts, but then am told
> the spare parts units are
not FCC approved. So what is the truth
> here? What can be used as a
GMRS repeater? And what would be a low
> cost unit available for such
use? Thanks.
>
>
Mathew
