Hi Walter,
Actually we are evaluating ROIP products for a major dealer network where
my job is purely RF engineering for OEM compatibility.
Granted, I am casting a rather wide net here on a fact finding mission to see
if the group is aware of any other brands that I had not covered. As for
What is the makeup and configuration of your repeater? Brand of
different units? What is on the other ports of the triplexer? What
kind of an antenna and feedline? All this will help to sort out
potential solutions.
73, Joe, K1ike
Dr. Ron Johnson wrote:
We are using a comet 324 triplexer
Here in the states, the legal term for those is 'control stations'.
It's not 'semi-duplex', it's 'half-duplex'.
2 frequencies, receiver mutes during TX.
But you STILL haven't answered the main part of the question:
What features at what price point?
BTW, you might also want to ask this on the
At 10:14 AM 9/26/2008, Dr. Ron Johnson wrote:
We are using a comet 324 triplexer here for 2m, 220, and
440. Working with a triband antenna. Only problem is desense on 2m
through the triplexerany ideas other than throwing the thing
awayThe desense is present at very low levels of
Hi Ron,
You might be dealing with an intermod generation problem in the antenna.
I'd suggest using a coaxial signal injector, a 60dB coupler or a tee with
the third port center pin removed - something like that, on the common port
of the triplexer, or between it and the 2M receiver. Using a
Thanks for all the good suggestions. I am using hardline jumpers from the
duplexer to the triplexer and then a double shielded silver plated jumper over
to the 7/8 inch cable to the antenna. All connectors are factory spec, silver
plated...no junk and no homemade connectors. The 2m, 220,
Thanks BobI will try all those.
- Original Message -
From: Bob Donnell
To: Repeater-Builder@yahoogroups.com
Sent: Friday, September 26, 2008 2:22 PM
Subject: RE: [Repeater-Builder] Triplexer noise
Hi Ron,
You might be dealing with an intermod generation problem in
I didn't see anyone mention the coax leads on the triplexer itself.
These are probably copper braid and not suitable for duplex service.
I'd replace them with *silver* plated double shield coax or Superflex,
with properly installed connectors. Or, replace the triplexer with
one that has
It is the model with connectors on the bodyno pigtails.
rj
- Original Message -
From: Laryn Lohman
To: Repeater-Builder@yahoogroups.com
Sent: Friday, September 26, 2008 3:41 PM
Subject: [Repeater-Builder] Re: Triplexer noise
I didn't see anyone mention the coax leads
Since I have not yet succeeded in getting my hands on the MSR2000 manuals, does
anyone know offhand what the current draw is on the 9.6 volt supply? Looking
to build my own...
Thanks in advance!
George, KA3HSW / WQGJ413
Per the service manual the 9.4 volt regulator has the rating of 1.1
amps at 80 degrees C. The voltage range is 9.2 to 9.7 volts.
The 13 volts for the receiver and exciter is 1.4 amps.
George Henry [EMAIL PROTECTED] wrote:
Since I have not yet succeeded in getting my hands on the MSR2000
---I actually have a Instruction Manual. But because I'm not familiar
with what your looking for. Please email me direct.
Thankyou
.
In Repeater-Builder@yahoogroups.com, George Henry [EMAIL PROTECTED] wrote:
Since I have not yet succeeded in getting my hands on the MSR2000
manuals, does
Well,
Need I say more? . . . . . . . .
Don, KD9PT
- Original Message -
From: EZ Rhino
To: [EMAIL PROTECTED] ; Mac enthusiasts involved in amateur radio applications
; [EMAIL PROTECTED]
Sent: Friday, September 26, 2008 3:10 PM
Subject: [rfamplifiers] Old ham video
Recently, John
Hi All
I am looking for the AC power box with the lead to the power supply
for the MSF 5000 case. I have a TPN1185A I would like to get up and
working. Can anyone help?
Bob
kd7ikz
I'm in the process of converting a number of MSR-2000 repeaters
over to using switching power supplies (I'm paying the electric
bill). I've asked one or two people who have already completed
the task and they reportedly used adjustable 3-terminal regulators
on well heat sinked mounts for the
Maybe you could use a fixed 9 volt three terminal regulator and lift the
ground through a diode? Should give you 9.6 I think.
tom
[Original Message]
From: skipp025 [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Date: 9/26/2008 11:19:13 PM
Subject: [Repeater-Builder] Re: MSR-2000
At 9/26/2008 12:18, you wrote:
Thanks for all the good suggestions. I am using hardline jumpers from
the duplexer to the triplexer and then a double shielded silver plated
jumper over to the 7/8 inch cable to the antenna. All connectors are
factory spec, silver plated...no junk and no
At 9/26/2008 12:41, you wrote:
I didn't see anyone mention the coax leads on the triplexer itself.
These are probably copper braid and not suitable for duplex service.
Absolutely. If this is the one with pigtails (CFX-324A, as opposed to
CFX-324B), then that is almost certainly the problem.
If you look in the File section, there is a pdf called 12Vmicor. It
is a short write-up on what I am using to make my Micor's run off 12V
direct. No reason why it shouldn't work for the MSR2000 too... just
need to find a convenient place to mount the LM317.
Use the standard circuit found in the
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