My other repeater is a piece of MASTR-II
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Ye' Olde ICOM RP-3010 finally needs retirement, so
I am in the market for a MASTR-II UHF Base or Repeater station, Rack
Mount, Something in the 20-50 watt range. Preferably in Phoenix or Las
Vegas for pickup. Let me know what you have and what you need for it.
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Does anyone know where to find COS in a syntor X?
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http://mc4.mohave.edu/mc4/images/lan3/CIMG0017.jpg
http://mc4.mohave.edu/modules.php?name=Forumsfile=viewtopict=29
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/
Radio J1 pin 14 _\
For mode select tying pin 13 and 14 on J1 will select Mode 1.
Hope this help, 73 de Michel VA2MAA
[EMAIL PROTECTED]
- Original Message -
From: "Matt Krick" [EMAIL PROTECTED]
To
? if so I may be able to send you a sketch
of the entire modification.
Bob
From: Matt Krick [EMAIL PROTECTED]
Date: 2004/04/12 Mon PM 03:31:08 EST
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Syntor X Control Cable
Does any one have information on the value of pots
Does any one have information on the value of pots and or capacitors used on a
Syntor X control head for the volume and squelch signals? Or can somebody draw
a sketch of what does what? I had a manual but some one disapeared with it.
Thanks
--Matt
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Are these Band pass, Band Reject? or Pass only?
Changing the cables will help alot since you are 20 MHz off. You would have an
easier time if your cans were in the 150-155 MHz range.
But a good way to be sure is to just test one cavity by its self and see if you
can make spec at your
I'm planning basicly the same thing only on UHF. But the mountain is 7200' and
valley is 3000 feet. I decided on using 4 Bay folded dipole array. Offset off
the tower for the 9 dB lobe pattern. This will still give a thick enough
pancake and the antenna looks like it will survive the
Anyone have any information preferabley a service manual or at least the
crystal forumula for a Standard C-790? I was given a box of these radios with
no documentation or control heads. They look well suited for amateur use as the
internals look like that of a RPT-21 and the crystals have
You still have the problem of VoIP not passing audio above 5 kHz
Instead of taking a S-Meter reading you need to convert the amount of
high frequency noise to a PL tone. Basicly build a SuperSquelch-IIIB
and use a 9400 voltage to frequency converter on the "S-Meter" pin.
Remember this is
Wanted: Dead or Alive.
Please check your clubs scrap heap.
Preferable Alive, ACC Computer Interface Board for RC-850 and/or Front
Display Panel
or Preferable Dead RC-850 with Computer Interface Board
Dead or Alive, ACC Digital Voice Recorder (DVR).
Lemme know whatchya got and what you need
Find a telephone company storage yard and steal it.
Or if you are not that adventurous, or just plain out of shape...
You can get CAT-5 Shielded Twisted pair. But you will need to splice it
your self, And I think the longest you can get it is 1000 feet. And
look to spend $80 to $150 per box
Had this problem with 146.64, the only way to cure it was to replace
all of the cable in the house and the drop to the cable co tap with
RG-11, and terminate all unused outlets in the house.It is still there
slightly but perfectly watchable
Chuck Kelsey wrote:
Cable channel 18 is 145.25
My thoughts They may be incorrect,
If a duplexer was constructed so that the Inner conductor to outer
conductor ratio was constant the length to the tunning rod, you wouldnt
have the swr dips. Sure the main part is the proper ratio, but none of
the designs take into account the evil
I'd rather I didnt read that. Makes me almost not want to climb
anymore... But it gets me out of the office.
http://www.kgmn.net/Our%20Engineer.htm
--Matt
Mike Morris WA6ILQ wrote:
http://www.cdc.gov/elcosh/docs/d0500/d000568/d000568.html
Mike
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[EMAIL PROTECTED] wrote:
is called latchup. That is what happens to an CMOS IC when you go
out of MAXIMUM specs on VCC.
This is the only CMOS IC I have had it happen on. Does it on all
varients, 202, 204, 22204 Mc141???.
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I have to throw my $0.02, So my research says.
I always had a preference for the SSI-204 and SSI-202 but my later
designs use MT8870s for the simple reason that they are still being made
by a variety of manufacturers and the 204's are no longer availible
unless you find a surplus vendor
The duplexer design I am working on will use 1/2 solid rod Copper, Brass or
Invar 36 with 6-8 inches for 2 meters tapped with fine threads at the top, and
a bolt soldered to it for the tunning plunger. The tunning rod will be
supported at the bottom by a teflon disc
When using Invar the
On a related note, Does anyone know where I can get 1/2 solid Invar 36 rod in
24 long segments?
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Find an old UHF television translator/transmitter. Figure out which radio shop
does the countys translators, and make friends with them the first day.
Any thing made by Larcan-TTC will have at least 1 circulator, there are at
least 3 in the newer XLS series. These will retune nicely to the UHF
On the sets I have I had to add about 2 1/2 of copper brasing rod to the rod
that is in the center of the tunning capacitor.
Also if you have PL-259s on the cans the Tees like to go bad, I had one
disintegrate in my hand once.
If you have N connectors, the solder joints from the connector
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