I agree. The users would not even notice if you cut the power in half.
One 2 meter repeater we took over was running on the 10 watt exciter
with the amp bypassed for I don't know how long. The caretaker before
we got it bypassed the amp because of desense or intermod or self
oscillation
More likely he had the radio programmed wrong.
Chuck
WB2EDV
- Original Message -
From: MCH m...@nb.net
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, September 07, 2010 11:16 PM
Subject: Re: [Repeater-Builder] Re: no power out of duplexer SOLVED with
more questions - Thanks for
Thought the RB list might be interested in this one.
Here's a photo of one of our Colorado Repeater Association repeater sites near
Boulder, CO Monday afternoon around 4PM.
http://www.9news.com/9slideshows/09-06-10-Boulder-fire-aerials/9703.jpg
(Sorry it's small, use your browser's zoom
Hi all,
Does anyone have a scanned schematic and/or a pinout diagram for a Maxar 80
lowband? I moving one that is presently at 49.520 MHz, up to 50.065 MHz, but
have no idea what the pins are for PTT, etc. There is no microphone or other
cables that came with the radio. Thanks for any help.
I got this to work before but now, no joy. I am using CE8 software, have the
correct cable, and an older DOS PC. I get either a box saying there was
communication problems or it quickly flashes Done! but hasn't actually read
the repeater. Is there some special trick I have forgotten?
Read the repeater first
NIMS: 100 200 300 400 700 800
Arrl Extra Class VE
HAZ MAT- A O
sent from my blackberry mobile device
-Original Message-
From: wspx472 wpxs...@gmail.com
Sender: Repeater-Builder@yahoogroups.com
Date: Wed, 08 Sep 2010 19:24:15
To:
the last time that happened to me I needed a new cable.
- Original Message -
From: wspx472
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, September 08, 2010 3:24 PM
Subject: [Repeater-Builder] Can't get Vertex VXR5000 to program
I got this to work before but
I know that they are available on the Batlabs site... try
http://www.batlabs.com/nosynth.html and scroll down to the Moxy section. I
believe that the pinouts for the Maxar, Maxar 80, and Moxy were all the same.
George, KA3HSW / WQGJ
From: KP3FT kp...@yahoo.com
To:
Hi George,
Thanks for the reply. I had downloaded the diagram for the Moxy earlier from
that website, but discovered the connector is different for the Maxar 80. Not
sure if the pinout #s are the same though. I could spend the money and get a
manual, but that is another 20 dollars and more
That's what I was trying to do.
--- In Repeater-Builder@yahoogroups.com, Gary W. Gibbs ke5...@... wrote:
Read the repeater first
NIMS: 100 200 300 400 700 800
Arrl Extra Class VE
HAZ MAT- A O
sent from my blackberry mobile device
-Original Message-
From: wspx472
That has happened to me twice and I read it then it would program. Sorry it
didn't help you.
NIMS: 100 200 300 400 700 800
Arrl Extra Class VE
HAZ MAT- A O
sent from my blackberry mobile device
-Original Message-
From: wspx472 wpxs...@gmail.com
Sender:
Good evening, our club has a Wacom WP-639 four can duplexer as part of our
repeater system. Input Fq is 147.915 and Output Fq is 147.315. We have a
600kHz (+) offset. Very simply, our main problem is when we run the
transmitter at full power 100 watts, there is a HUGE desense on the receive
What repeater are you running? Is it a GE Mastr II by chance?
Andy
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of RichardK
Sent: Wednesday, September 08, 2010 3:11 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Wacom
At 03:11 PM 9/8/2010, RichardK wrote:
Good evening, our club has a Wacom WP-639 four can duplexer as part
of our repeater system. Input Fq is 147.915 and Output Fq is
147.315. We have a 600kHz (+) offset. Very simply, our main problem
is when we run the transmitter at full power 100 watts,
At 04:38 PM 9/8/2010, Andrew Seybold wrote:
What repeater are you running? Is it a GE Mastr II by chance?
---You hinting at the issue of Mastr II amp going spurious when the
power is turned down too far?
Ken
--
Hi George,
If you don't mind going to the trouble, that would be great. Just verifying if
the pin number/functions are the same as the Moxy would be good because I
already have the Moxy pinout.
73
Jeff KP3FT
--- On Wed, 9/8/10, George Henry ka3...@att.net wrote:
From: George Henry
i'm at work right now--I will get that info tomorrow!!
Rich K
W2RRK
x
To: Repeater-Builder@yahoogroups.com
From: aseyb...@andrewseybold.com
Date: Wed, 8 Sep 2010 16:38:49 -0700
Subject: RE: [Repeater-Builder] Wacom WP-639 Duplexer question
What repeater are you running? Is
On 9/8/2010 6:11 PM, RichardK wrote:
Good evening, our club has a Wacom WP-639 four can duplexer as part of our
repeater system. Input Fq is 147.915 and Output Fq is 147.315. We have a
600kHz (+) offset. Very simply, our main problem is when we run the
transmitter at full power 100
Bcc to 2010 VoIP Conference List
-Original Message-
From: David Cameron (IRLP) [mailto:dcame...@irlp.net]
Sent: Wednesday, September 08, 2010 7:56 AM
To: Kent Johnson
Subject: Re: Possible to purchase IRLP node numbers for AllStar
Kent, the short answer is no. I have had far too many
I'm not surprised- you're asking too much of a duplexer that has four 5
cans. According to my CommShop program, a duplexer with an 80 dB spec is
more suitable with transmitter power in the 10-15 watt range, assuming a
solid-state PA and a receiver sensitivity around 0.35 uV at 12 dB SINAD. On
a
Good evening Eric,
Maybe this is why when the trasmit power is dropped to the 20-50 watt range,
the receive opens way up like it should. However, according to the spec sheets
regarding the Wacom SP-639 Duplexer, it is rated for 200 watts. So, again, not
sure what's going on. We will be
At 06:18 PM 9/8/2010, Richard Kelly wrote:
We will be trying other things such as adding a second ground rod
outside the shack instead of the single one we use now. We will
also try isolating the amp some more and replacing the coax feed
line with hard line.
--That is a complete waste
Rich,
Eric speaks the truth. The will HANDLE 200 watts without arcing, etc, but
do not provide nearly enough isolation at 600 KHz spacing to handle 100
watts. For a 35 watt transmitter, I run cans that provide around 96 dB of
isolation. the 85 dB your cans can provide just ain't gonna cut
I'm afraid your wasting your time. According to the document for the
Wacom 639 duplexer, this is what it says:
MIN. FREQ. SPACING: 600 KHz
POWER: TO 200 WATTS
Notice that it says TO 200 watts. That would be if you were at 2MHz
of spacing or more. You are only at 600KHz spacing, so you
Hello again Ken,
Thank you for replying with more info, we appreciate it. My email address if
you want to get off this posting is w2...@arrl.net
How would we go about providing MORE isolation than what we have done so far?
Rich Kelly W2RRK
x
To: Repeater-Builder@yahoogroups.com
At 9/8/2010 18:24, you wrote:
At 06:18 PM 9/8/2010, Richard Kelly wrote:
We will be trying other things such as adding a second ground rod
outside the shack instead of the single one we use now. We will
also try isolating the amp some more and replacing the coax feed
line with hard
I got a set of 4 sinclair cans, like a Q202g on a GE mastr II running 100 watts
with pll exciter and GE preamp with no desense. Antenna is roughly 300' away
fed with LDF7-50A. Is this a miracle or typical?
- Original Message -
From: Repeater-Builder@yahoogroups.com
Rich,
The short answer is: You need to find a bigger duplexer. Four 8 cans
would work well such as a Wacom WP-641. You could simply call and order
one if Wacom was still in business. (RIP) Unfortunately Tx/Rx bought
them years ago for the name and to quash competition. They can be found
At 08:21 PM 9/8/2010, n...@no6b.com wrote:
Replacing copper-braided coax with RG-214 or hardline is hardly a waste of
time.
--Notice I said:
More grounding and replacing coax with hardline (unless your coax
isn't doubleshield to start with) will buy you nothing.
I was assuming he wasn't
The PLL exciter is why you're having such good success running a 4-cavity
duplexer. If you had a PM exciter, chances are you'd be experiencing
desense. The PLL exciter produces about 22 dB less noise at 600 kHz offset,
reducing the noise supression requirement of the duplexer by a like amount.
Rich,
While there have been a lot of good suggestions thrown at you, you are fighting
an uphill battle without knowing the spec's that were obtained when the
duplexer was re-tuned the last time or finding someone with a tracking
generator or network analyzer to verify the duplexer tuning.
On Wed, 8 Sep 2010, Kent Johnson wrote:
Bcc to 2010 VoIP Conference List
-Original Message- From: David Cameron (IRLP)
[mailto:dcame...@irlp.net] Sent: Wednesday, September 08, 2010 7:56 AM
To: Kent Johnson Subject: Re: Possible to purchase IRLP node numbers
for AllStar
Kent,
I am tossing around the idea of building a 6 meter repeater. This will have
to be single site if I do this. What are you guys using for the repeater,
duplexer, and antenna?
Thanks,
Charles KC5DGC
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