Mike,
Did you just build up these repeaters? If so, you need to remember to install a
load on the audio output of the receiver audio amplifier. This can be placed at
the speaker connections. If there is not an 8 Ohm load on the audio output, it
will produce a low level oscillation in the
it be found?
Is the programming software and cables only available
from Motorola?
I can tune the RF stages of the repeater and I have
all the necessary RF test gear to do this. I need to
find out how to program the amateur frequencies, get
the software or find out where to get this done.
Thank You,
John
.
Thanks,
John Lloyd, K7JL
Intermountain Intertie
http://utahvhfs.org/snowlink.html
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of
kc7ght
Sent: Friday, March 16, 2007 1:13 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Coax for cabinet
several VHF and UHF repeaters.
John Lloyd, K7JL
Utah VHF Society Frequency Coordinator
Posted by: k7pfj [EMAIL PROTECTED] k7pfj
Date: Sun Feb 25, 2007 7:52 am ((PST))
Being the chairman on a repeater cordination councel
and having many operational UHF repeaters. One could
only wish
is A+ or 13.8 volts.
Let me know what you found out.
John Lloyd, K7JL
Intermountain Intertie
http://utahvhfs.org/snowlink.html
3. Service speaker not workinng
Posted by: Daniel M LePage
[EMAIL PROTECTED] dmlgnnv
Date: Sun Dec 10, 2006 2:12 pm ((PST))
When I changed the shelf
Dave,
You can build your own 6 Mtr duplexer. Find some 1-5/8
heliax and put one together.
Look at http://www.wa7x.com/ki7dx_rpt.html
Thanks,
John, K7JL
Utah VHF Society
http://utahvhfs.org/snowlink.html
1a. 6M duplexer wanted in UK
Posted by: dave_g7uzn [EMAIL PROTECTED]
Kevin,
This sounds like a classic intermod problem. Does your
repeater and the new one each have a dual isolator on
its transmitter?
Yes, you will need a dual isolator on your repeater
transmitter as well as the new one 30 khz away.
John Lloyd, K7JL
Intermountain Intertie
http://www.ussc.com
Note: forwarded message attached.
__
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* To visit your group on the web, go to:
I am looking for a GE manual for the UHF exciter 19D423865G4.
It is GE manual LBI30200.
I searched for it on the GE manual listings at Repeater Builders but it
is not there.
Does someone have a .pdf copy of this manual that they send to me via
email?
Thank You,
John Lloyd
K7JL
Yahoo
Have you tried Tessco?
www.tessco.com
John, K7JL
From: Al Wolfe
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, March 09, 2005 8:12 PM
Subject: [Repeater-Builder] Antenna mounting brackets
Anyone got any ideas on where to find standoff
mounting brackets for a DB224? Also interested
manufactures on the
market.
Thanks,
John Lloyd, K7JL
Intermountain Intertie
www.ussc.com/~uvhfs/snowlink.html
***
Message: 3
Date: Mon, 28 Feb 2005 14:22:15 -
From: johnmichaelwelton [EMAIL PROTECTED]
Subject: Colocating second UHF rptr
I
The Care and feeding of RF Isolators by EMR corp is
found by going to:
http://www.emrcorp.com/technical_cover.htm
and then clicking on The Care and feeding of RF
Isolators
John Lloyd, K7JL
__
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Yahoo! Sports - Sign up
are removed at the bottom mounting pipe
to remove the inside antenna elements.
John Lloyd, K7JL
Intermountain Intertie
http://www.ussc.com/~uvhfs/snowpix1.shtml
Date: Sun, 09 Jan 2005 10:49:09 -0500
From: Kevin Custer [EMAIL PROTECTED]
Subject: Re: Re: Decibel Products DB-224 Antenna
Noise
Message: 12
Ed,
You need to contact APCO to get the coordinator for
Fire Frequencies.
http://www.apcointl.org/frequency/
Thanks,
John Lloyd, K7JL
Utah VHF Society Frequency Coordinator
Date: Thu, 6 Jan 2005 04:15:40 -0800 (PST)
From: Ed Lemley [EMAIL PROTECTED]
Subject: Re
I am looking for the service manual for the older Grey Voting Selector.
It is LBI 30002.
I am looking for the schematic for the voter module, 19D413994G1, that
uses discreet components.
Does someone have this in a PDF format that they could emain to me?
Thank You,
John Lloyd, K7JL
Rick,
Make sure you check other nearby towers for loose or
rusty hardware. I had a similiar problem with a nearby
tower, 100 Ft away from our 146.940 repeater antenna
and the owner used a non galvanized anchor plate for
his guy wires. Well it rusted over time and became the
intermod generator
was under 1 db and the isolation
was 75 DB on frequency. I got mine from Bill Hance,
KD7CWA. Bill knows his stuff and is good to work with.
John Lloyd, K7JL
Date: Sun, 3 Oct 2004 01:18:22 -0400
From: Q [EMAIL PROTECTED]
Subject: Intermod problem?
Trying to troubleshoot an intermod??? problem
I have had my 2 mtr, 147.180 repeater at the same site
location here in Utah at 11,000 Ft since 1974. Does
this longitivity and elevation qualify?
John, K7JL
Is there a repeater on the space station?
That's gotta about as high as you can get I would
think..
I wonder if it is a Mastr-Pro
can see some
pictures of them on our web page.
John Lloyd, K7JL
http://www.ussc.com/~uvhfs/snowlink.html
Date: Mon, 20 Sep 2004 12:27:13 -0400
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
Subject: New Sinclair 2M Antenna Question
We just purchased a new Sinclair 2-Meter Collinear
antenna
Our group here in Utah has a low band 6 Mtr Amateur
repeater on top of a 9,000 Ft mountain. It uses a 1
Mhz split on 53.15 output and 52.15 input. The Radio
is a GE MastrII and we built a band pass band reject
Duplexer out of 4 DB products cavities. The antenna is
a modified Celwave omni. You can
Some time ago I remember seeing a discussion about a
recording program that runs on a personal computer to
record the audio from a repeater. Can some one direct
me to where I can find this information?
I have searched the messages and have not found it.
Thanks,
John, K7JL
in
the Amateur bands. His receives at 443 and transmits
at 448 Mhz. That's two TKR-850 repeaters that I know
of that have been tuned successfully to the 440-450
band from the 450-470 band.
I received my manuals in PDF format. I will check to
see if I can send you a copy.
Thanks,
John Lloyd, K7JL
a
bandpass cavity in front of the Spectrum Analyzer
tuned to your receiver frequency to verify on
frequency interferrence.
John Lloyd, K7JL
Intermountain Intertie
http://www.ussc.com/~uvhfs/snowlink.html
Message: 10
Date: Tue, 10 Aug 2004 23:51:05 -
From: Coy Hilton [EMAIL
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
Several years ago, I had a similar problem with AM stations 1510 and 910
that were 600 khz apart. They were both about 5 miles away from our
repeater. Our 146.94 repeater when it keyed up was hearing the audio
combination of both AM transmitters that were on during the day. The
problem went away
Richard,
Have you tried installing a low pass filter between your 2 Mtr duplexer
and the antenna feed line?
I am talking about the large low pass filters that were found in the old
VHF Motorola base stations that were about 1 inch in diameter and about
14 inches long.
I have a similar situation
Robert,
Have you looked at the audio level coming out of the repeater receiver?
I sometimes find the Mastr II and Exec II receiver audio output level
pot intermittent or dirty which results in what you are experiencing.
This Pot is located in the shielded compartment by the detector. This
sets
Skipp and group,
Yearsago back in the 60's when we planned our Amateur 420-450 band we
probably were considered a "rural" area. Now we haveevery commercial two
way frequency,FM and TV Broadcast and even the 2 Mtr and 440 Amateur bands
are full with transmitters and they are at multiple
Skipp,
You made a comment about your local 440 Amateur repeaters using the High
in and Low out plan and by doing this you suggest that your area in
California is a trend setter. I thought that I would share some
information about the logic that went into our band planning and actions
here in
Kevin,
I have that manual in a .pdf file that I will send to you directly. It
is GE LBI-30731.
Let me know when you get it.
Enjoy,
John Lloyd, K7JL
[EMAIL PROTECTED]
Message: 12
Date: Tue, 03 Feb 2004 13:55:04 -
From: w5kgt [EMAIL PROTECTED]
Subject: Multi-Receiver Power Supply
cap that I need to replace. It is Motorola part
number 25D82253N01C and its value is 64,000 uf at 20 WVDC. It is 2-1/2
inches round and 4-1/4 tall.
Any help will be appreciated.
Thank You,
John Lloyd, K7JL
Intermountain Intertie
http://www.ussc.com/~uvhfs/snowlink.html
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