Having the phase harness the wrong dimensions may cause this. You can
either rebuild the harness or atempt to lengthen the center conductor
inside the reject capacators.
At 07:51 PM 04/19/07, you wrote:
I have a remote base setup on a UHF machine running an RC-210. I would
like to be able to remotely rotate a beam antenna via DTMF over the
repeater. I have figured a way to do this via the controller, but I have
not yet figured out how to know where the beam in
At 08:21 PM 04/18/07, you wrote:
The only sure way to keep these silly connectors from coming loose is to use
Lock Tight! No other way to keep them on when the radio is
installed in heavy
equipment and farm vehicles. Just make it permanent and when the
radio needs to
be removed cut the coax
Mike Morris WA6ILQ wrote:
I've had no problems after I put a o-ring around the center pin and
pushed it up inside the plug.
Great idea Mike! I can see how the o-ring will keep a little pressure on the
connector threads to keep it from vibrating loose.
Thanks,
Dex
At 07:52 PM 04/21/07, you wrote:
I am converting a full duplex Micor base station to a repeater. The
station was pulled from service on the UHF MED channels and won't repeat
but will full duplex.
I have looked over repeater-builder.com and am not finding an article
describing the procedure. Can
At 10:31 PM 04/21/07, you wrote:
I am having an issue tuning a Q202 duplexer. I reviewed the past 144
or so posts regarding Q202 issues, but haven't found any past posts
mentioning the following issue.
The unit was originally on 165MHz. It has the horizontal
copper/dielectric reject stubs which
From: Dexter McIntyre W4DEX [EMAIL PROTECTED]
Reply-To: Repeater-Builder@yahoogroups.com
To: [EMAIL PROTECTED], Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Mini - UHF Connector
Date: Sun, 22 Apr 2007 02:51:52 -0400
Mike Morris WA6ILQ wrote:
I've had no problems after I
--- In Repeater-Builder@yahoogroups.com, Gareth Bennett
[EMAIL PROTECTED] wrote:
Hi Group,
Can anybody out there enlighten me on the power amp failures on
the earlier Kenwood TKR-750 Repeaters? I recall that Kenwood was
scrambling around changing these under warranty when the 750 was first
Go to an authorized Kenwood dealer and most likely Kenwood will ask for the
sale date and warranty it if not contact me off the list and ill see what
I can do.
Oregon Repeater Linking Group
Mike Mullarkey
6539 E Street
Springfield, OR 97478
[EMAIL PROTECTED]
www.orlg.org
Brian,
First choice, Quantar or MTR2000. Get the preselector and the software + pgm.
cable
EIther one will do VERY nicely.
Fall back position, Radius M1225 again get the optional preselector and the
software + pgm. cable
Milt N3LTQ
- Original Message -
From: [EMAIL PROTECTED]
Brian
Can you contact me off list
Ed Folta
Com/Rad Inc
Des Plaines IL
[EMAIL PROTECTED]
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com ; [EMAIL PROTECTED]
Sent: Sunday, April 22, 2007 8:13 AM
Subject: [Repeater-Builder] Repeater Dream List
there is a little more then that. look at the back terminal board and the
filters that need to be added to the receive connections.
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, April 21, 2007 10:52 PM
Subject:
Hi All!
Here is a tough problem. A high ranking official in Law enforcement has
approach me to recommend equipment for a UHF repeater to be used by hams to
back
up to local police/public safety. He sounds like he has deep pockets, the
money sounds like it is coming from 9/11
I tried to lenghthen the inside element of the reject capacitor rods
using #10 copper from a piece of romex, but not much difference. The
reject notch remained on the wrong side of the pass. Is the copper not
compatible with the existing materials the reject assembly is made of?
--- In
Brian,
Save yourself the work and the money... I have one already operating in your
back yard!! Besides, coordinated 440 pairs are hard to come by in Illinois
anymore.
Machine details: 444.550 PL:114.8
Located on the Will County tower on Owens Rd, between Laraway and Delaney
Roads.
Yup... best advice is get the correct manual for the station and get to
know both very well It will save you and your neighbors a lot of greif.
73
Mike
K5JMP
www.k5jmp.us
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Maire-Radios
The split is in the same direction. Old pair was 165.7/164.6. I
made sure the low/hi relationship stayed the same. The old 165.7 is
now 146.8, and the 164.6 side was moved to 146.2
--- In Repeater-Builder@yahoogroups.com, mch [EMAIL PROTECTED] wrote:
Are you tuning the new high pass on
On Sat, 21 Apr 2007 22:51:04 -0700, Mike Morris WA6ILQ wrote:
I've had no problems after I put a o-ring around the center pin and
pushed it up inside the plug.
You beat me to it Mike! I've been using this trick
for many years on excavating equipment or any other
vehicle that takes a beating.
I usually use a 3db pad on the generator output and another on the
ant input of the tracking generator. Another important item is a 50-
ohm load on the unmeasured side of the duplexer. I use a small 25w
load from an old circulator.
I'll try to use a few elbows to lenghten the harness and
Another interesting technique I learned about a couple of years ago for
setting FM deviation, if you don't have something to measure it handy, is
the Bessel-Null method.
This would seem to relate well to the poor-man's service monitor topic.
Randy KC6HUR published some information on this for
On 4/22/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Hi All!
Here is a tough problem. A high ranking official in Law enforcement has
approach me to recommend equipment for a UHF repeater to be used by hams to
back up to local police/public safety. He sounds like he has deep pockets,
the
Keep in mind that there are two notches, one on each side of the pass.
They are spaced about 10-15 MHz apart. When the low notch is at 146MHz,
you will find the upper notch in the 154-156MHz area roughly. The reject
coaxial capacitor (or the piston cap in the newer version) adjusts both
On 4/21/07, skipp025 [EMAIL PROTECTED] wrote:
The price of Service Monitors is all over the map right now. I
see prices and availability directly related to the state of
the LMR Industry, location and Ebay Action.
Definitely, Skipp. I hunted for the right deal for my IFR-1500 for three
In a message dated 4/22/2007 9:08:05 AM Central Daylight Time,
[EMAIL PROTECTED] writes:
there is a little more then that. look at the back terminal board and the
filters that need to be added to the receive connections.
The filters should already be there if it was a full duplex MED
Nate Duehr [EMAIL PROTECTED] wrote:
how are people testing/working on their D-Star systems?
I can't think of a single SM that knows how to do bit-error
rates and/or other AMBE vocoder functions.
The fudge answer is... most people just connect the equipment
and press the go (power on)
Eric, I had the identical issue with this duplexer. Eric Lemmon helped
me solve the problem by commenting that the arrangement that Sinclair
uses has a reject notch on both sides of the cavity resonance. A sweep
of the cavity will show the two notches that can be moved in unison
around the
Neat to look at Nate,
My first poor mans service/deviation monitor was a display tacked
onto the a$$-end of a radio shack scanner. Once I saw and recorded
the relative deviation values from a known service monitor (on the
most popular bands)... I could fudge a deviation pretty darn close.
If money isn't an object, Motorola MTR2000.
[EMAIL PROTECTED] wrote:
Hi All!
Here is a tough problem. A high ranking official in Law enforcement has
approach me to recommend equipment for a UHF repeater to be used by hams
to back up to local police/public safety. He sounds like
Jack, I used an older Bearcat hand-held scanner as a signal generator
for years. It has a 10.8 mHz IF and you can calculate the offset
frequency that has to be entered in the scanner to give you the
frequency you want. To prevent stray radiation and provide a means of
attenuating it, I program
General best to look at the eye pattern on the receiver. Steve
I am just getting started with Dstar - have worked Pro Voice and Aegis for a
while. sb
On 4/22/07, skipp025 [EMAIL PROTECTED] wrote:
Nate Duehr [EMAIL PROTECTED] wrote:
how are people testing/working on their D-Star systems?
Brian,
My recommendation is the Motorola MTR2000. I have three of these units in
Amateur service, and two in commercial service, with a third to be added
very soon. The MTR2000 is a high-tier station that is built for continuous
duty at full power. One of my UHF stations is only 100 feet or so
What value of cap should be used as a minimum for TX RX controller
inter-connection. 1000pf, 5000pf?
Doug - GM7SVK
Jim, I have a couple of Q202G's that most likely could be restored. Would
appreciate
a copy of the manual.
73 de Jack - N7OO ([EMAIL PROTECTED])
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, April 22, 2007 9:39 AM
Subject:
There's no easy answer to that question. The two biggest factors to
consider when selecting the right value are:
a) What frequency range are you trying to filter out? If your problem is
keeping an AM broadcast station out, you'll need larger values as compared
to targeting your own VHF/UHF
I have 2 VHF MSR2000 Repeaters that I'm building up at the same
time. Both units have the same problem and I'm hoping someone with
MSR2000 experience can give me a suggestion on where to look next.
I'm having a terrible time with receiver desensing, transmitter
hanging on and audio
Tom,
The VHF MSR2000 stations generally come in one of three splits: 132-150.8,
150.8-162, and 162-174 MHz. Some of the symptoms you describe result from
operating the exciter, harmonic filter, and PA outside of the band they were
made for.
What modifications were done to move them from the
Does anyone know how would I go about changing the audio response on a
CAT-1000 controller? I'm seeking to make the audio flat.
Thanks.
At 4/22/2007 12:21, you wrote:
What value of cap should be used as a minimum for TX RX controller
inter-connection. 1000pf, 5000pf?
Doug - GM7SVK
Jeff's answer completely accurately answers the question; I can only
offer my personal choices of filter types values.
For any DC supply lines, I
Have you run your duplexer and antenna system successfully with another
radio---i.e.., no desense etc.?
If yes---probably radio trouble.
If noThere are lots of possibilities
Check the duplexer first--Put a dummy load on in place of the antenna and
an iso-tee in the receiver input
Hi Art,
Have you found the data you were looking for? If not, I might be able to
help. I found manuals for both the VHF and UHF Repco receivers and
transmitters
in the S-COM archives. They're referred to as the RDL series of RF Link
Devices, and apparently there were both voice and data
On a CAT? I'm not sure that's possible.
You may end up changing the entire audio path. ;-
Joe M.
Tony L. wrote:
Does anyone know how would I go about changing the audio response on a
CAT-1000 controller? I'm seeking to make the audio flat.
Thanks.
Dear Sir,
Please guide me how to construct 470 MHz Filter.
Thanks in advance.
vikash gupta
-
Check out what you're missing if you're not on Yahoo! Messenger
My name is Jeff, NJ5R. I am new to this group. I need help locating a
kxn1052 and a kxn1024 channel element for my 'new' micor repeater. 73
Jeff
The MTR2000 has been a good repeater for us too.
Just be prepared for the $1200.00 flat rate repair when it's out of
warranty. I've been told there are no field serviceable parts for the
MTR2000 unless you have a boneyard or spare to pull from.
Randy
Eric Lemmon wrote:
Brian,
My
I have a Cushman Field Service Monitor that has a couple things not
working right. Anyone know of a reliable shop that services these old
Cushmans?
Re: REPCO 2 watt vhf transmitter strip- info request
Bob..! you nice guy you! I've also been looking for the
VHF Manual for some time. I'd pay you some type of a big bribe
to make copies for me/us. I will of course scan them into a
pdf file (if not received as scans) and pass copies into to
Guys,
Thanks for the replies. I guess once I downloaded the manual and
studied the cabling diagrams, I now understand what you all were
saying about the cables attached directly to the cavities. The
original cables were 11.5 inches on low side, and 10.5 inches on the
high side. The high side
Right at the start of my conversion information I mention you
should begin with the repeater working well at the original
frequency. I probably should include the advice to do the
frequency conversion first before you do my or anyone's modification.
Just so you know you are not fighting
I have a bunch of MSR2000s here. I know the Canadian version was
offered as a 132-150 version, but the USA versions I have here are
rated 146-174MHz. I know the Micors are band-split for VHF, but from
what I read in the MSR manuals, I think there is only one 146-174
slpit MSR, no?
I have a
Most of the CAT controllers that I have delt with have no provision for
deemphasizing the audio in the controller. You can not feed
discriminator audio directly into them without using a de-emphasis
circuit in the audio path. One way is to take the discriminator audio
through a 15K series
- Original Message -
From: kk2ed [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, April 22, 2007 8:53 PM
Subject: [Repeater-Builder] Re: Need VHF MSR2000 Repeater help
I have a bunch of MSR2000s here. I know the Canadian version was
offered as a 132-150 version,
Re: Seeking feed thru' cap value.
The min value is no feed-through capacitor... just a straight
feed-through although pretty much anything you use will have
some Capacitance... resistance and inductance included.
You're going to see a whole lot of different cap values used
by various
I've had great service from from Bob at Cardinal.
www.cardinalelec.com/
Jim-WA9FPT
- Original Message -
From: Randy
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, April 22, 2007 3:37 PM
Subject: [Repeater-Builder] Cushman Service Monitor Repair
I have a Cushman
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