----- Original Message -----
From: "Eric Lemmon" <[EMAIL PROTECTED]>
To: <Repeater-Builder@yahoogroups.com>
Sent: Saturday, April 10, 2004 11:24 AM
Subject: Re: [Repeater-Builder] repeater control
> Alan,
>
> Yes. Part 97 Rules require that the Control Operator be able to shut
> down a repeater in the event of a malfunction, and this can be done over
> a radio or wireline link. A link that is used solely to exercise
> control need not be a full-duplex link, and it can even be one-way, so
> long as it works. For example, you could have a 440 MHz receiver that
> would pass only a carrier with a specific PL or DPL code, followed by a
> simple DTMF decoder. You could key up your control radio and send a
> brief string of DTMF digits to knock down the repeater or bring it up.
> You could also use DTMF to change power levels, switch antennas, or
> unlock the door.
Just to clear up a fine point. The control (as defined by the RCC) is mainly
used to turn the transmitter off. The others you mentioned are not
concidered control functions but ancillary functions.
97.205
(e) Ancillary functions of a repeater that are available to users on the
input channel are not considered remotely controlled functions of the
station.
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