[BC] Remote Control
Glen Kippel
glen.kippel
Sat Feb 24 11:03:33 CST 2007
On 2/24/07, DHultsman5 at aol.com <DHultsman5 at aol.com> wrote:
>
>
> It is my understanding that the FCC doesn't care how you monitor or what
> you
> monitor but you must have positive control of the carrier on-off.
> That
> can be any means you can devise.
>
> Remember you or, one of your operators, may have to prove they have
> positive control over the carrier on-off.
>
> --------------
I agree. Almost. Yes, the operator (if there is one anymore) must be able
to turn the carrier off if the transmitter is running out of licensed
parameters. Thus, it is necessary to know whether or not the transmitter is
indeed operating legally. It is not necessary to keep track of the plate
voltage and plate current, as in olden days. You do need to know that the
output power is below 105%. If it is below 90%, you need to be aware of
that and fix it within 10 days, so you don't need an immediate alarm for
that. But it is nice to know. Modulation must be kept below the legal
limit, so I have tended to use a Modminder (R) with the outputs tied into
the remote control. I know it is highly unlikely that all of a sudden the
audio chain would go bonkers and cause the transmitter to overmodulate, but
I consider this due diligence. I also like to monitor the building
temperature so that if the A/C conks out I can dispatch a repairperson, but
that is obviously not something that the FCC is concerned about. It just
may keep the equipment from getting fried.
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