Here is some info for connecting a CAT controller to a RP-1520.
The pinout on the 1520 should be the same as the RP-1220.
Not sure if you have a RP-1210 or a RP-1220
-Sean
On Mon, 9 Aug 2004, Gary Kohtala wrote:
> I am trying to figure out how to interface an Icom 1.2 ghz
> repeater to an ext
AS stated in one of my posts, it's 144.510 MHZ. the remainder of the
equipment used to assist with eliminating this problem is as
follows. a Wacom WP641 duplexer, BpBr With an Additional BAnd Pass
cavity tuned to my receive frequency, also a Notch filter, a 5 pole
Helical front end feeding a
There is some info on a UHF repeater at www.repeater-builder.com,
on the Icom page. It might be a lead in the right direction.
Mike WA6ILQ
At 12:26 AM 8/9/04, you wrote:
>I am trying to figure out how to interface an Icom 1.2 ghz
>repeater to an external controller. I have been asked to
>do th
[EMAIL PROTECTED] wrote:
>
> The epoxy sealing the three recessed screws on 120 deg centers near the
> aluminum mounting tube meets the fiberglass must be removed.
I have removed these three allen head screws, however the epoxy is
wedged between the aluminum and the fiberglass. Will heating th
Neil McKie writes:
>
> Will? from a very long time ago ... in a galaxy (well, almost)
> far, far, away?
>
> ???
>
> Neil
YES!
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from t
Greetings. I am looking for service manuals for the
Mitrek for low, high, and UHF, and the same for the MastrII.
Please email me: n1iic at qsl dot
net.
Thank you
Jason
Yahoo! Groups Links
To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/
Hi
Since I posted the last msg I have built two cavitys and tested them
both are working well but don't have the narrow notch I require. they would
work fine on a repeater with a 5 meg split but we don't have that much split.
we only have .9 of a meg.
will post how I progress :/
regards
---
I am trying to figure out how to interface an Icom 1.2 ghz
repeater to an external controller. I have been asked to
do this without having any schematics, manuals, or reference
material. No manual came with the repeater. Icom has been
completely worthless when asked to support their product.
Thus
Coy,
You did not say anything about what receiver frequency
you are using that is getting hit by the 900 mhz
transmitter. Do you have a bandpass cavity on your
receiver? If you are using a BpBr type of duplexer,
then it has almost no rejection to the 900 Mhz signal.
You will need a bandpass cavity
No. Nothing on the air all of the time. Anytime that I see it if I
disable this transmitter it goes away. This transmitter is dirty.
I've been tracking and asking the owner for 3 months to fix it, and
they have been dragging their feet. I've been told that these
transmitters are notoriously noi
Read in part - as you sent yours in html which I quit using
several months ago.
"Yes, very interesting when you crunch the numbers:
"129 pagers a day, 5 working days a week ... (etc.) .
"You must be a salesman... "
No, I am not a salesman, but a technician who prefe
Joe:
I think you missed something. Neil didn't
say he did that every day; just one day at 129. For an 8 hr day (perhaps more)
that would equate to roughly 16 per hour or one pager every 4 minutes or so.
Easily doable if you don't take too many breaks.
Wayne-Vancouver
- Origin
Yes very interesting when you crunch the numbers:
129 pagers a day, 5 working days a week, 250,000 customers on a frequency for a large paging company equals 388 weeks or 7 1/2 years. Yes, I would say that it would be logistically impossible.
You must be a salesman..
JoeNeil McKie
Is there another transmitter that is on all the time, such as an FM broadcast station, AM station, TV station, service such as National Weather, or anything else that is keyed all the time? Anything even near the tower and not necessarily on the tower? You still may be getting a mix. It might
no, I did not try that to prove or disprove it. The antenna was
replaced by a diamond X-50 for a linking repeater at low height from
the ground on a hill top (20 ft)
James
Mike WA6ILQ wrote:
I don't
think that dipoles get tilted, but did you try demounting the
antenna and turning it over
This application is for low level repeater use. It will not be going on a
hill. The location will be a on a valley floor. Is there an easy way to test
the antenna for the uptilt angle, as if it's serious, it won't be useful even
for a for a repeater in this application.
Steve
WA6ZFT
On Mon
I don't think that dipoles get tilted, but did you try demounting the
antenna and turning it over and remounting it?
Mike WA6ILQ
At 05:45 PM 8/9/04, you wrote:
I had a DB404 (I think that was the
number, two dipoles each side of the stick, 5 or 6 ft long?). This
was made for 450-470 and the
There used to be a DB 406, it was a 4 or 8 pole antenna but the dipoles were
out of a flat aluminum, not the tubing. Got one laying around here
somewhere, at least some of the dipoles.
Paul
-Original Message-
From: russ [mailto:[EMAIL PROTECTED]
Sent: Monday, August 09, 2004 6:22 PM
To:
--- In Repeater-Builder@yahoogroups.com, James <[EMAIL PROTECTED]> wrote:
I had a DB404 (I think that was the number, two dipoles each side of
the stick, 5 or 6 ft long?). This was made for 450-470 and the SWR
was good at 441 (repeater output), however, I believe there was
possibly a ton of u
How interesting ...
Back in the mid 90's, I contracted to a company in the greater
Portland, Oregon area recrystalling their and customers pagers.
The most I did in one day including testing them was 129, April 16,
1997.
I would want to believe that may prove your theory somewhat
It's always when this Tx is up. In looking at it on a spectrun
analyzer, it only looks like crap some times. I have looked at many
other transmitters and found none to be on or of at the same time as
the noise. I do know if I kill this transmitter when it's happening
that it drops imediately I
They need to put a band pass filter on the thing. I have had the 900 MHz
guys raising the noise floor over 100 MHz from their signal. If they put
in a good TX/RX or other BANDPASS cavity, they will be good (unless your
on 900 as well)
James
Coy Hilton wrote:
>Does any one have any info on the
It's very possible that the PA has gone spurious. It's
also possible that you are experiencing intermodulation. Does the
interference always occur when the paging company keys up, or only
sometimes when they are keyed up? My point is, does some other
transmitter have to be on the air (or off
I had a DB404 (I think that was the number, two dipoles each side of
the stick, 5 or 6 ft long?). This was made for 450-470 and the SWR was
good at 441 (repeater output), however, I believe there was possibly a
ton of uptilt as the coverage off the hill was horrible (even a diamond
worked be
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