Many of the tones that tha Com-Spec TS64 series borads will do are
non-standard tones (per EIA). Has anyone used any of these??
especially the low ones like 33 Hz??
James
kc0rtx wrote:
254.1 - 0Z - NON EIA STANDARD TONES
Randy
KC0RTX
-
Original Message
Hi Wade,
Nice drawings. I would suggest a 47K resistor from the transistor base to
ground. I have had several occasions where the input to the base floated
(neither pulled high or to ground) and it caused the transistor to operate
erratically.
73, Tony VE3DWI
Subject: Re: [Repeater-Builder]
On Sat, 4 Dec 2004, Al Wolfe wrote:
normal tone. With this system any transient could access any PL100
compliant system by transmitting the universal tone of 100 htz. A
distinctive tail message or other mechanism could be used to discourage
common usage of the PL100 system but still allow
Make sure all the coax jumpers are OK. They should be good RG-214 and
DEFINATELY not 9913. If you find any 9913 jumpers replace them with Rg-214.
-- Original Message --
Received: Sat, 04 Dec 2004 04:36:49 PM CST
From: Rick Stoneking [EMAIL PROTECTED]
To:
Gee now this sounds like a DITTO. Had the
exact same problems today with the repeater here in Indiana. Most of mine
was due to a piece off 9913 that was in line, and yes I know it was not suppose
to be there, temporary situation. Anyways, replaced that with hardline and
took care of most
In broadcasting, 25 hertz is commonly used to key up the Marti type
repeaters, both mobile and fixed. Just like the old automation cue tones, it
may be slow but it works and is easy to filter out.
Al, K9SI
Date: Sat, 4 Dec 2004 20:20:56 -0600
From: Gregg R. Lengling [EMAIL
PL100 is not a new idea but I don't know anyone who has tried it. It
does seem to answer the issue of the transient user, one of the arguments
put forward for having carrier squelch available.
Motorola figured it out back in the late fifties, that they could have
about ten times as
Try wacking the guy wires with a 2x4 during the time that the noise is
present. Also try wacking the tower. If either of these changes or
eliminates the noise, you have dissimilar metal rectification of the RF.
This would be due to loose hardware or rusty guy wires.
73
Glenn
WB4UIV
At 07:48
John is right, but good jumpers can include RG142, RG400, 1/4 Heliax...
Laryn K8TVZ
--- In Repeater-Builder@yahoogroups.com, JOHN MACKEY [EMAIL PROTECTED] wrote:
Make sure all the coax jumpers are OK. They should be good RG-214 and
DEFINATELY not 9913. If you find any 9913 jumpers replace
Not just the second harmonic. A power supply with a 120 Hz ripple on it
(poorly filtered full wave rectification) could deviate the TX sufficiently
to cause some PL decoders to see it as a 118.8 Hz PL tone.
Tony, VE3DWI
-Original Message-
From: Steve Grantham [mailto:[EMAIL PROTECTED]
Hey John and every body,
Make sure that there is a /u on the end of your RG-214 or RG-214/U big
difference between RG-214 and RG-214/u
Good Luck,
73 Russ, W3CH
- Original Message -
From: JOHN MACKEY [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, December 04, 2004
--- Gregg R. Lengling [EMAIL PROTECTED] wrote:
Using tones below 60 Hz usually doesn't work for 2
reasons. #1 reason is that the transmitter will not
reproduce that low of a tone without distortion and
overdrivingand the receiver audio won't recover
it. #2 the lower the frequency the
I love Micors for what they are (radios built when radios required lots of
aluminum, steel, and trunk space!) but they came out over what, 25 years ago?
I put out a challenge; look at something newer. Mitrek VHF to 220; (or
MSR2000; a quick look at the manuals will confirm they're pretty
There are conversions out there for the Maxtrac radios. I have not
tried it yet myself.
James
kb4mdz wrote:
I love Micors for what they are (radios built when radios required lots of aluminum, steel, and trunk space!) but they came out over what, 25 years ago?
I put out a
kb4mdz wrote:
I love Micors for what they are (radios built when radios required lots of
aluminum, steel, and trunk space!) but they came out over what, 25 years ago?
Let me ask you a question. In the last 30 years what RF technology has
evolved that makes any newer radio any better than a
You may want to try the group [EMAIL PROTECTED]
Also, I have extensive experience with the Micor on 220, so ask away.
http://www.repeater-builder.com/rbtip/222menu.html
As far as antenna go, if you like to build, try one of these with about
12 half waves in phase. It will fit in a old
I have to interject here...
Gregg R. Lengling wrote:
Using tones below 60 Hz usually
doesn't work for 2 reasons. #1 reason is that the transmitter will not
reproduce that low of a tone without distortion
Your statement Gregg that "the' transmitter will not reproduce that low
James wrote:
Kevin, you're just a show off (putting the com-spec code in there)
I'm allowed grin
0Z -
Find that one if ya dare :)
Okay:
http://www.n9jig.com/radio/PL.html
(254.1 Hz.)
Yahoo! Groups Links
To visit your group on the web, go
Rick Stoneking wrote:
All,
I am trying to resolve a problem
ona local repeater where they are having intermittent 'noise'
problems.
The noise may be related to weather (wet
or cold causing an increase in the problem) though it is not a
everytime event.
It was
Or put a 5 second time out timer on the 100 Hz tone access.
Users could make a call but not hold a long conversation.
Neil
Kris Kirby wrote:
On Sat, 4 Dec 2004, Al Wolfe wrote:
normal tone. With this system any transient could access any
PL100 compliant system by
Yes, it does happen.
Neil
Tony lelieveld wrote:
Not just the second harmonic. A power supply with a 120 Hz ripple
on it (poorly filtered full wave rectification) could deviate the
TX sufficiently to cause some PL decoders to see it as a
118.8 Hz PL tone.
Tony, VE3DWI
You better incude Bob S-Com's modified PM exciter, too, or he will be
disappointed. ;-
Joe M.
Kevin Custer [EMAIL PROTECTED] wrote:
--
I have tested many repeater transmitters and can verify that
'most' station exciters that employ FM
Hello Kevin All,
I have a Micor RX Strip model TLE8032A and noticed
that a shield is missing from being installed over the multiplier coils. I
could have sworn that another RX strip that I had (now in service on a mountain)
had that shield. It does NOT appear to have been removed but
I personally have
experienced more problems due to the antenna rods being loose especially the
Diamond colinear antennas. I have not had problems due to 9913 cable usage
before, its not out of the realm of possibilities but I would suspect the
connectors and how they are installed more
I have built or been involved in building dozens of repeaters, new and
old, many flavors. The absolute best sounding, trouble free and ruggedest
repeater or mobile radios, bar none, I have ever seen are the Micor radios.
Besides they have that awesome dynamic squelch and better audio than
Don't forget to consider power line noise due to cracked insulators and
poor connections on transformers. On highband fire radio systemhave
had a lot of trouble with the noise being due to 4160 volt primary
arching in high wind and fog conditions. Even on a calm day (windwise)
you could hit
List, not sure if this applies to the noise on the
repeater or not but Newline has confirmed a
snap-crack-pop noise.
ON THE AIR: THE NEW AMERICAN UHF WOODPECKER
Is the US. Military interfering with your UHF repeater
system? Could be, if
you live in the great American South-West. Take a
I am constantly acquiring used Standard GX-3000 transceivers from
various sources, for modification and use as repeaters and links.
Cracking them open for the first time is always a joy. Typically in
about 1 out of 5 transceivers, I find factory and field
modifications that net all kinds
Adam C. Feuer wrote:
Hello Kevin All,
I have a Micor RX Strip model
TLE8032A and noticed that a shield is missing from being installed over
the multiplier coils. I could have sworn that another RX strip that I
had (now in service on a mountain) had that shield. It does NOT
Rick,
Make sure you check other nearby towers for loose or
rusty hardware. I had a similiar problem with a nearby
tower, 100 Ft away from our 146.940 repeater antenna
and the owner used a non galvanized anchor plate for
his guy wires. Well it rusted over time and became the
intermod generator
Hmmm?? That's very interesting and thanks
Kevin. What's so interesting is that it just doesn't look like it was
removed, almost as if it were never there. My digital camera is at work, I'll
bring it home and send you a picture. Thanks for the
offer!
Adam N2ACF
- Original Message
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