What the mfgrs do is that they have to say for example ABC Brand Radio
Model number 123456789 they submit so many of that model number, the
units undergo the process with all the equiptment to see if they meet a
certain criteria something like this...
- Frequency Stability in ppm
- Mike Audio weather AM FM or SSB
- the spectrum analizer will show type certified signals filtered
to a certain db level
- Harmonics
- any unusual frequencies are they supressed?
- If say an RF Amplifier is it made to show Zero Db Gain on 26-27
Mhz. ( CB ) and cannot key the amp?
before the stamped OK is put on the documents the FCC wants to make
sure it will perform as stated besides would you want to hear endless
YACK YACK from a Dirty CB radio over your TV ? I have a Q. for those I
come into contact ... Say what if they decided to do away with all the
filtering, can you imagine going down the road listening to some pager
making all that DATA racket? .... makes these illegal operators think.
Now you get an idea why the FCC has these rules for Type Certified.
Paul Finch wrote:
Johnny,
What constitutes the loss of the FCC type acceptance? Does anyone have the
rules section pertaining to this question? Like I said, the worst thing you
do to some of these radios is removal of the antenna switch which has caused
some interference problems with near field transmitters.
Paul
-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Johnny
Sent: Monday, November 28, 2005 6:44 PM
To: [email protected]
Subject: Re: [Repeater-Builder] Re: GMRS in USA
No, it does not.
Johnny
Neil McKie wrote:
Question:
Does the Johnson 6060 meet FCC Type Acceptance for GMRS?
Neil - WA6KLA
Mike Morris wrote:
At 06:57 AM 11/28/05, you wrote:
Interesting. I have a friend who was just asking me about a
GMRS repeater for he and his wife. He has aprox. 50 acres of
woods that he likes to walk around in and is in his 70's. His
wife is concerned about him needing to contact her, so I got
them a pair of Midland GMRS radios. They don't quite do the
job because of a little terrain blockage due to a hill. I was
thinking of recrystalling a Repco repeater that I have and set
up a GMRS repeater, but don't know the details about how
feasible this would be. Any suggestions from the group?
Joe
Reminds me of a small repeater I saw a dozen years ago. A regular
outhouse building, but with no throne, off in the woods, but on the
crest of a small hill. Inside was a pair of car batteries, a
Johnson UHF PPL 6060 radio and a mobile duplexer. On the roof was
a 2 foot by 4 foot solar panel facing south. Next to the building
and strapped to it was a 30 foot pushup mast holding a short
stationmaster.
Taped to the Johnson was a xerox of a GMRS license.
There is a GMRS conversion of a 6060 at repeater-builder.
Mike WA6ILQ
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