At 08:52 AM 8/19/05, you wrote:
>I have a motorola micor repeater that has the exciter keyed up all the
>time, the TLD5322. I'm told if it is not setup like this that it will
>have a delay in the keyup. The signal can be heard for a few miles
>from the repeater site. Is there another alternative to this?
>
>Mathew
Your problem is that the channel element is running all the time
and someone has probably left a shield plate off. Or it came
that way and he does not know it's missing. Maybe someone
can take a photo of a station with all the shields in place and
post it. In fact, that might make a good web page - especially
if it listed all the part numbers.
The basic Micor station can be configured as a base (with
an antenna relay) or as a duplex base or as a repeater (both
of which have no relay). The antenna relay output is a fairly
robust switching transistor (an open collector output).
The repeater-builder.com web site has a Micor page that has
a bunch of conversion articles. One step in the basic mod
jumpers the channel element enable pin to ground.
An alternative mod uses the antenna relay output to key
the channel element. This trick resolves situation you are
seeing.
Your fix? You will remove the jumper from the transmitter
channel element enable pin to ground, and replace it with
one that goes from the element to the antenna relay output.
(I think it is on the station control card, but I forget which
pin it is.)
But look for a missing shield as well.
Mike WA6ILQ
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