At 08:08 PM 09/21/08, you wrote:
>Does the Motrac style preselector tune on the high end of 6 Meters,
>53.7 MHz without capacitor changes? It seems that modifications to the
>preselector would be difficult, as it appears to be hand wired -
>assembled. Breaking a coil seems easy to do.
20 odd ago
Thia unit is a slide-out drawer from a PURC5000 paging transmitter.
It was used as a 72MHz link receiver to receive analog modem tones
from a paging control point. The audio then fed the controller in the
PURC5000 to digitally moduate the transmitter with Pocsag or other
data.
These drawer uni
I have tuned Motrac L receivers (both extender and non-extender versions) to
52.525 MHz and 53.29 MHz and the front ends tuned up fine with no slugs
visibly near the edge of their range.
What you will have to change on the Motrac L receiver in the injection chain.
3 caps need to be lowered in val
I can't be 100% sure about your particular radio, but years ago I had
a Motrac on 52.525 and I do not remember changing any parts. It was a
high split radio on 47 MHz. I do remember it had the noise blanker
option and it tuned up very well and met rated sensitivity and the
power out was right on al
Does the Motrac style preselector tune on the high end of 6 Meters,
53.7 MHz without capacitor changes? It seems that modifications to the
preselector would be difficult, as it appears to be hand wired -
assembled. Breaking a coil seems easy to do.
One of my 900 MHz PURC5000 manuals has several Micor receivers in it, including
72 MHz. There's also a section that seems to cover the chassis, although I
don't know if it's the same one you have. It might be. One board has a squelch
pot and an RJ45 jack on it. If that's mounted directly behind
I agree. It's probably the PURC5000 Link Receiver option C659 to C663, or
C850. The manual 6881064E10 is still available from Motorola Parts for
about $17.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Milt
Sent
Sean, I have been answering your emails regarding the repeater and they
all bounce back to me as undeliverable.
Do you have another email address I can try?
Randy
Sounds like the 72 MHz RX option for the PURC 5000 series radio. A seperate
manual as I recall.
Try Moto parts ID for more info.
Milt
N3LTQ
- Original Message -
From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
To:
Sent: Sunday, September 21, 2008 1:35 PM
Subject: [Repeater-Builder] Motor
Mark,
I have a manual for a 68P1056A35 MOTRAC C74MSY-3101AY and BY community
repeater. It shows the BY uses a TLN1684A master decode. I didn't come
forward before because I didn't see that number mentioned. part # TLN5803A
is the kit number for the master decode board in a TLN1684A module.
P
Mark,
Sorry to hear that you are still fighting this problem.
I think we were on the right track when this kinda ended last month,
in that what you need to find is a Motrac series community repeater
manual that might show the TLN5803A Master Decoder. I have not been
able to turn one up yet.
I do
> > We feed Vol/Sq Hi into the S-Com's with the de-emphasis
> > capacitor recommended by them added at the receiver input
> > inside the 7K... the audio "inside" the controller is
> > de-emphasized "normal" audio... and then back out into
> > the normal audio inputs of the MASTR II...
Have yo
Larry,
I think you are headed in the right direction. I have most of a
MSF-5000 purc station and it has a UHF receiver much as you described
your 72 MHz receiver. I was surprised when I removed the covers and
found a Micor UHF receiver and Micor PL decoder inside the chassis.
I have the receiver,
I recently picked up a 72-MHz MICOR receiver off of the big auction site (won't
mention the name lest someone get all [EMAIL PROTECTED]&!).. This MICOR
receiver appears to be in a 3-1/2" high MSF-5000 series box, with the
spring-loaded releases on the black front panel. It has a squelch control
Mark,
Now, I'm the one who is confused! I just looked at a UHF community repeater
and noticed that it has a TRN6421APR backplane. However, it is equipped
with a TRN6165A Master Decoder. I therefore wonder if the TLN5803A Master
Decoder you have even belongs to that machine. I confirmed, as you
Eric,
The original thread started 08/11... and (forgive me for the bandwidth
usage) I captured most of it here. I did take the liberty to edit out some
of the stuff I felt was "unimportant" or "non-productive".
At one point in the build, I *thought* I had this problem resolved... but
apparentl
I thought the community repeaters could decode and encode separately. In other
words, there's no requirement that the received PL tone match the transmitted
PL tone. If that's the case, then the PL decoder is supposed to remove any
received PL tone, which sounds exactly like what yours is doing.
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