like the audio and video situation
than the SWR problems we see at RF.
73 - Jim W5ZIT
--- In Repeater-Builder@yahoogroups.com, Nigel Johnson [EMAIL PROTECTED]
wrote:
Very interesting theory. I am teaching SWR at present to my third
year college students. Could be a good discussion point since
a special cable (not standard RS-232)
in order to program it via computer. The cable is documented in the
manual and you will find that older units will operate a sub-set of the
commands shown in the manual.
73 - Jim W5ZIT
-Original Message-
From: Maire-Radios [EMAIL PROTECTED
Do an ebay search for ge mastr. You will find a large number of GE
Base stations at the present time that can be operated as repeaters
listed.
73 - Jim W5ZIT
-Original Message-
From: lou_c1357 [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tue, 10 Jul 2007 6:43 am
You guys have missed one that I saw used repeatedly over the working
years. It is SWAG - we would SWAG a bid on a task, and everyone knew
what we ment. scientific wild ass guess
73 - Jim W5ZIT
-Original Message-
From: n9wys [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
How about TU (Tango Uniform) for any item, box, chip that was dead.
(Txxx Up)
73 - Jim - W5ZIT
-Original Message-
From: Mike Morris WA6ILQ [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sat, 7 Jul 2007 12:47 pm
Subject: Re: [Repeater-Builder] Acronyms-a little OT
to the RCA input on the IF board. This might
account for the burned resistor mentioned.
73 - Jim W5ZIT
-Original Message-
From: ve7ltd [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Fri, 29 Jun 2007 8:30 pm
Subject: [Repeater-Builder] Re: Retuning 11.2 Mhz oscillator
legalized.
73 - im W5ZIT
-Original Message-
From: mch [EMAIL PROTECTED]
To: [EMAIL PROTECTED] Repeater-Builder@yahoogroups.com
Sent: Mon, 25 Jun 2007 8:31 pm
Subject: [Repeater-Builder] First repeater?
I know this is somewhat controversial, but I'm looking for the date/year
the first ham
interfaced to the radio at the office, such as the Zetron
38A, with a relay that can be controlled by a particular tone could
alert the office that an access was in progress. Also a log of the
access would be kept in the Zetron and could be read out at any time.
73 - Jim W5ZIT
-Original Message
and the access code would reset to factory default. After a few
minutes, plugging the RAM chip back in resulted in a reset to the
original factory access code, and factory parameters. From there is was
follow the manual to set them up to the parameters I wanted. 73 - Jim
W5ZIT
-Original Message
of the few
controllers to offer this option. I have an old Zetron 38A on a
repeater with an inband link using this trick and works like a charm.
73 - Jim W5ZIT
Nate wrote:
You also forgot to mention Al Psion's GE card cage controller too
-- it's a NEAT product for a stand-alone GE MASTR II station
with only the 440 repeater
connected directly to the antenna.
He has now done away with the 440 repeater and operates the 2 meter
repeater with a direct connection from the duplexer to the GP9 antenna
and is very happy with the performance.
73 - Jim W5ZIT
-Original Message-
From
meter input.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Fri, 27 Apr 2007 8:58 AM
Subject: RE: [Repeater-Builder] Re: Repeater Antenna Question
I don't think any of them have cavities in them. I would suspect that
the
telewave
the flattened tubing. I then measure the length
projecting from the end of the loop and cut it back to two inches.
I have not had to modify the harness to get satisfactory operation in
the ham band.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder
the cavity on the lower side from 10.5 to 12.5 inches and
they tuned just fine in the ham band.
Eric scanned the manual for my duplexer and I can send you a copy if
you are interested.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent
well as long as there is zero
radiation from the signal source.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sat, 21 Apr 2007 9:20 PM
Subject: Re: [Repeater-Builder] Service Monitors
I suspect the accuracy of the deviation
resistor with a .22 mFd cap to ground on the
output side of the resistor and feed that into the CAT receiver audio
terminal. That should give you flat audio for the TT decoder to see and
good sounding audio on the repeater output.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED
and COS from the 2 meter repeater as soon as the 2 meter user unkeys.
This is a common problem when linking a repeater to EchoLink or IRLP
and this solution seems to work best when the link is in-band.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder
is not permitted on this list, and apologize for this
response. But a common misconception about Sky Command is that it does
some control on 2 meters. In fact, it only uses the 2 meter band to
transmit the receive audio from the remote installation.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL
Be prepared to have your sweet spot move around due to different
atmospheric conditions and foliage variations. It may not work 365 days
a year.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Fri, 20 Apr 2007 8:42 AM
Subject
.
Also, Zetron does not support the older units. No repair or firmware
upgrades are available beyond a few years back. A unit sent in for
repair will be returned without a repair, beyond a certain firmware
version.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: [EMAIL
Did you order a receive crystal on the high side injection for the new
frequency? The GE receivers can do some strange things with a low side
injection crystal in the 443.xx range.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wed, 11 Apr 2007 2
Jim, you may be my last hope. I have an HW-24 talkie and need to change
the encode/decode tone frequency. Most functions are pretty straight
forward, but for the life of me I can't remember how to set the tone
frequency.
If you could enlighten me, I would sure appreciate it.
73 - Jim W5ZIT
Same thing happened to me when I tried to join Ken Arcs RC-110 group.
I got two messages back that said the moderator failed to allow me in
the group. Guess I must be a troublemaker or something.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder
reliable
operation. In later years I have used the anti-kerchunk capability of
the CAT-300 to do the same thing. Setting it to a half second does the
trick.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tue, 27 Mar 2007 9:29 AM
Subject
things to
work with a low SWR in the 2 meter ham band.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tue, 27 Mar 2007 12:40 PM
Subject: RE: [Repeater-Builder] Re: 4 bay folded j pole questions
-Original Message-
From
than the 27 or so miles the rule of thumb would
suggest. More like about 35 miles to the best of my knowledge. So maybe
the rule does not work all the time - (or the tower is taller than I
think it is)
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder
Off subject, but do you remember a time back in the '70s that this
repeater was shut down due to a duct to Hawaii that let an 82 repeater
in Hawaii come booming through in LA. I had a Wilson handi-talkie with
a 1/4 wave ant taped to the roof of my rent car in LA and worked a guy
walking on the
will probably get
reliable operation down into the noise with the tone detector only
controlling your repeater.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Fri, 23 Feb 2007 8:05 AM
Subject: [Repeater-Builder] Tone squelch vs. carrier
But don't mount it upside down. The base is not waterproof when
inverted -
I learned that the hard way!
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tue, 20 Feb 2007 3:19 PM
Subject: [Repeater-Builder] Re: Antenna gain specs
with 6 meter traps in the 300 ohm antenna leads to the
outside antennas. That seemed to clear up most of my TVI problems.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sun, 18 Feb 2007 1:12 AM
Subject: [Repeater-Builder] Re: 1953
used them on 440 also, as I gathered some out of a metal scrap
yard and put them in service. Fins knocked off ect from being thrown
out of the back of a truck to a scrap pile but still worked OK for the
most part.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater
Looking at the inside of an older Zetron 38A I thought I was looking at
the original Apple II. Same processor, same amount of memory ect. If
you find a schematic, let me know. I have not found one either.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater
to the decoder is set too high.
I hope this helps -
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Wed, 31 Jan 2007 9:35 PM
Subject: [Repeater-Builder] Help CG Decoder Mastr ExecII
Hello, anybody of you can tell me how can I retune the band
of the 4N36 will allow interface to your controller.
It provides an open collector closure to the emitter when the LED on
the radio is lit. Applying +5 or +12 volts to the collector will
provide a positive going output on the emitter of the 4N36 when the LED
is lit.
73 - Jim W5ZIT
it
more susceptible to a reverse burst than a normal tone decoder.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Fri, 19 Jan 2007 2:27 PM
Subject: [Repeater-Builder] Re: Reverse Burst Comments (Com Spec RB-1)
--- In Repeater-Builder
linear supply - so there is no drop across a regulator to
cause extra dissipation in the power supply. Very good efficiencies can
be obtained with a ferro resonant supply - with acceptable regulation.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder
and bandwidth from this simple antenna
until the demise of the coax. It was located on top of a light standard
at the football field.
Electrically the antenna was three half waves in phase, but the three
sections were not fed equal power.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED
with mine, and only require someone sending along
the EEPROM and return postage to program one. Drop me a note if you are
interested.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Fri, 12 Jan 2007 10:50 AM
Subject: [Repeater-Builder
manual is included also.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Fri, 12 Jan 2007 11:27 AM
Subject: Re: [Repeater-Builder] E-prom Reader-Writer for Phoenix
What software are you using with this RFGUYS programmer?
- Original
to that value as possible. Do this after the batteries
are charged and power is being supplied to the repeater from the power
supply and not the battery. This will minimize electrolyte loss while
providing a reasonable capacity from the batteries.
Hope this helps -
73 - Jim W5ZIT
-Original Message
at the link site. That
problem cleared up when the repeater was modified to get rid of the
user tone before the transmit tone was added.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Fri, 5 Jan 2007 5:06 PM
Subject: Re: [Repeater
to the third harmonic relationship. I have not seen
any degradation on the 2 meter receive, however using GE Mastr Exec II
radios. Power on 440 is limited to 20 watts.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sat, 6 Jan 2007 3:48 PM
to the 146 mHz region, I had to lengthen that cable on
each can by 2 inches, from 10.5 to 12.5. The notch would not tune till
that was done.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tue, 2 Jan 2007 2:19 PM
Subject: Re: [Repeater
W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Mon, 1 Jan 2007 7:37 AM
Subject: Re: [Repeater-Builder] Welcome to 2007...
* Mike Morris WA6ILQ [EMAIL PROTECTED] [2007 Jan 01 03:07 -0600]:
Happy 2007 to all the readers of this mailing list. May
You put the capacitor on the wrong side of the resistor. Put it on the
output side.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sat, 30 Dec 2006 3:26 PM
Subject: [Repeater-Builder] Re: audio equalizers for repeater audio
and does not
collect.
Hope some of this info helps -
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sat, 30 Dec 2006 6:02 AM
Subject: [Repeater-Builder] Solar Powered Repeater
To start the new year out on a positive note anyone
W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Wed, 27 Dec 2006 1:09 PM
Subject: [Repeater-Builder] Re: Bi-Polar Prom Programmer Wanted (please)
Hi Andy,
Thanks for your reply...
If I have to work with the eprom adapter I might get that far
Did you put a simulated speaker load on the speaker jack? Some audio
systems have problems unless they are properly loaded. A 10 ohm
resistor across the audio output jack might help.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent
and use
the transmit switch for local testing.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tue, 19 Dec 2006 10:24 PM
Subject: [Repeater-Builder] GE Mastr II Station
Hi!
Does anyone have repeater conversion info on the newer style GE
W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thu, 14 Dec 2006 10:34 AM
Subject: [Repeater-Builder] Newbie Information Time - Mystery Signal
In my opinion, is a slight flaw in the voice operation on
144.39 MHz below ... the FCC requires you
I can remember getting my Yaesu FT-5100 into some strange mode that
sounded exactly like that every time I keyed down. Three DTMF digits
(I never knew which ones) but the tones did not change between digits.
Sounded exactly like your wave file.
73 - Jim W5ZIT
-Original Message
I am trying to use a programming system originated by Niles Radio
Communications and the Rangr radios have two fields called:
CCT (a number is required)
STE (Yes or No)
What are these two terms referring to and what are the functions?
Thanks - Jim W5ZIT
Thanks Jeff. The information you gave me is exactly what I was looking
for.
Thanks again - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Mon, 11 Dec 2006 4:49 PM
Subject: RE: [Repeater-Builder] Radio Terms
CCT = carrier control timer
the emitter to ground. A common 2N can be
used, and the loading provided by the MIC input bias resistor will not
bring the audio down so much.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tue, 5 Dec 2006 3:12 PM
Subject: [Repeater
I inherited a DB 8 bay antenna 25 years ago and have been using it ever
since. On top of a 300 ft tower, no less. Still working great.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tue, 28 Nov 2006 9:54 AM
Subject: Re: [Repeater
, and you will find that some
won't erase at all. You just have to give it a try.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Fri, 24 Nov 2006 11:21 AM
Subject: [Repeater-Builder]Repeater Controller (new)
I am helping the club bring
manual.
It worked very well, and there is no way to get out of sync since the
control code sent to the radio selects a particular preset memory
channel.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thu, 16 Nov 2006 3:11 PM
Subject
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