Title: Message
I have 3 of these
for sale $55 each contact me off list ... here are the
Spec's
BIRD COAXIAL
ATTENUATOR N TENULINE
Model: 8321
Impedance: 50 ohms
Frequency: DC -
500MHz Attenuation: 30db
Power: 50Watts RF
Continuous
Weight: 6.5 lbs
(2.9Kg)
Size: 10-11/32"L X
greenfin2002 wrote:
am using a 440 hub repeater to link 2 vhf repeaters. everything
worked except the normal squelch crash. i then added audio delay
boards to fix this now when i unkey from vhf repeaters i hear an
echo. usally the last 2 or 3 letters of the last word that was
spoken.
On Tue, 10 Jan 2006 03:38:37 -, fire22pa wrote:
Most Sub station transformers like the one in the video which form
the looks of the bushing size is at least
Whew..the period key is 2 to the right of the M key :)
Sorry, but I got out of breath just reading it.
Tedd Doda, VE3TJD
Most Sub station transformers like the one in the video
which form the looks of the bushing size is at least 69kv
or possible 138kv normally have fuseing on the High voltage
size and then go to buss work and feed distribution breakers
for the journy out to the line system so for my 2
Another quick n' dirty way to lay out racks is to use Excel. Re-size
the width of a column to make it approximately the same height-to-width
ratio such that one cell is about the size of 1 RU. Select the number
of cells to equal the number of rack spaces you have available, put a
fat border
On Tue, 10 Jan 2006 08:50:08 -0500, Jeff DePolo wrote:
What I'd like to know is how/why there was someone videotaping a
substation? Seems kinda fishy...
We had one (a smaller one) blow here a few years
ago, and it percolated for quite some time. The noise
brought out many home owners along with
Title: Message
Yes I'm interested. Is the 30Db switchable?
Tim
On Mon, 9 Jan 2006 22:51:53 -0700 "Ed Flipsen" [EMAIL PROTECTED] writes:
I have 3 of these
for sale $55 each contact me off list ... here are the
Spec's
BIRD COAXIAL
ATTENUATOR N TENULINE
Model: 8321
--- In Repeater-Builder@yahoogroups.com, Kevin Custer [EMAIL PROTECTED]
wrote:
Do the systems properly duplex on a dummy load? How about a dummy
on
the antenna port of the diplexer?
If the answer is yes to both (3), then I'd replace the antenna (as
I
have had folks complain to me that
Hello!
I would like to build UHF repeater, controlled with PIC micro.
I have some ideas, and i would like t share it, but i also need a help.
Firts of all, problem is filter for receiver. i want to use external
duplexer, so i can use same schematic with small exchange on it and in
firmware, so it
Original Message
Subject: For Sale: Clegg FM-76
Date: Tue, 10 Jan 2006 10:28:49 -0500
Organization: INSTRUCOM, INC.
To: [EMAIL PROTECTED] [EMAIL PROTECTED]
Hello All:
Need to get rid of some things around here not being utilized. One of
them is the subject Clegg FM-76
Well I picked up a 60 watt Mitrek with 4 sets of channel elements at
the magic price (free) locally. Now I need the wiring harness for it,
anyone have a spare Mitrek Wiring Harness they could part with? Let me
know, thanks.
Alexander
Many fire departments have a camcorder on the rig.
Chuck
WB2EDV
Jeff DePolo wrote:
What I'd like to know is how/why there was someone videotaping a
substation? Seems kinda fishy...
--- Jeff
Yahoo! Groups Links
*
You've got a big project there.
What is it exactly that you're looking to learn?
I'm asking, because you seem to want to take on a LOT of issues,
which may leave you broke and discouraged in the end.
If I were you, I'd start off with a repeater controller, a relatively
straightforward
Another option would be to go to a site like
http://www.symbols.net/electrical/ and dump the .gifs
into Visio and add connectors for easier wire routing.
Hmm.. Ransom note schematics :)
Also, Orcad has a demo version available for download
that should work great if all you want to do is
Do the systems properly duplex on a dummy load? How about a dummy on
the antenna port of the diplexer?
If the answer is yes to both (3), then I'd replace the antenna (as I
have had folks complain to me that the GP-9 doesn't duplex well after
its been up a while) and/or read this:
Your delay may be way too long. You only need about
1/4 to 1/2 second of delay, depending on how fast your
radio can squelch up.
Definitely sounds like he needs to back off on the delay.
I once had my Arcom delays set to max.. It was pretty funny, although
it DOES train you to hold the key
I've used AutoCAD for several years now. I drew several equipment racks last
and inserted DXF's of various equipment, amplifiers, network devices, etc.
Things are a little tougher when CAD drawings for various pieces of
equipment don't exist, but people would post what they have into the Files
I once use a GP-9 for a repeater antenna, was not happy with the performance.
But one thing you can do to help is REMOVE all the set schrews for each
section, then fill them up with solder. 10 years later, my antenna was
still operating as well as the first day (which isn't saying much).
I have a Phelps Dodge/Celwave PD-522-509 according to the factory
label. I cannot find any info on this duplexer anywhere, does somebody
have the specs of this duplexer set? It almost looks like a PD-526
without the Band Reject ADJ, but has the 4 RX/TX/TX,RX ports on the
top. Thanks for any
greenfin2002 wrote:
am using a 440 hub repeater to link 2 vhf repeaters. everything worked
except the normal squelch crash. i then added audio delay boards to
fix this now when i unkey from vhf repeaters i hear an echo. usally
the last 2 or 3 letters of the last word that was spoken.
The 522-509 is an odd creature. There are two pass and two notch on the
transmitter side, and one pass and one notch on the receiver side.
Discussions about this duplexer came up a while back on this list -
maybe it's in the archives? I think Bob NO6B posted measured
performance of one he put on
Well,the suggestions to check the power setting evidently has helped.
We increased the power to 30W after lunch today and no more noise this
afternoon. We have taked on it for 15-20 minutes at a time, several
times, then let it rest and do it's voice ID, and no noise. Cross your
fingers, looks
HiI have bought a new rfs band pass cavity and I am just checking about tuning it .it was advertised to work from 400-500 mhz but when I apply a signal around 480 mhz through it it doesn't seem to improve the filtering .When new do the elements inside need to be cut to suit the frequency
- Original Message -
From: Jeff DePolo [EMAIL PROTECTED]
What I'd like to know is how/why there was someone videotaping a
substation? Seems kinda fishy...
--- Jeff
Jeff,
Like many people I carry my video camera with me all the time. You never
know when something will happen, and
Chuck Kelsey wrote:
Many fire departments have a camcorder on the rig.
Chuck
WB2EDV
I doubt it had been going that long that they were already there, but maybe.
Actually looking at the video, it looks like it's at the edge of a golf
course... the nicely trimmed trees and bushes someone
This is a funny story from the Broadcast Engineering mail list...
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Ron Castro
Sent: Tuesday, January 10, 2006 12:31 PM
To: Broadcast Radio Technical Forum
Subject: Re: [RT] Re: Local interference issues and
Bob,Jeff thanks. I'll browse the archives and see what I find. If not I'll try the new "RFS/Celwave" for info.Andy
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Visit your group
Hi Group,
I live in an area that has lots of wideband UHF repeaters across the
US-MEX border, about 60 miles away. They mostly operate wideband. I
am thinking of using narrowband in order to squeeze inbetween them.
However, I have absolutely no experience in narrowband operation,
especially in
--- In Repeater-Builder@yahoogroups.com, Kris Kirby [EMAIL PROTECTED] wrote:
How much current can the Maxtrac GPIO outputs sink for a low condition?
Are they open collector or ... ?
_
Pin 4 - Programmable Output OnlyThis
It looks like I will soon own some scrap copper or brass rigid coax. This
is 3 to 4 inches in diameter, in 20 feet lengths with flanges on both ends.
The TV station that I work for is going to be scrapping this. Does anyone
have a need for some to possibly make UHF or higher duplexers/filters
--- In Repeater-Builder@yahoogroups.com, JOHN MACKEY [EMAIL PROTECTED]
wrote:
I once use a GP-9 for a repeater antenna, was not happy with the
performance.
But one thing you can do to help is REMOVE all the set schrews for
each
section, then fill them up with solder. 10 years later, my
At 1/10/2006 16:11, you wrote:
The 522-509 is an odd creature. There are two pass and two notch on the
transmitter side, and one pass and one notch on the receiver side.
Discussions about this duplexer came up a while back on this list -
maybe it's in the archives? I think Bob NO6B posted
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