As frequency decreases, so does the importance of keeping the dipoles
exactly above one another. This is why you can get away with mounting
the bays of a LB array around a smaller tower (like Rohn 25) and still
have very good omni-directional performance. Positioning the bays
around a
Agreed, Eric... but being affiliated with public safety, I also see that
some agencies (mostly municipalities with limited budgets) are waiting as
long as possible before being forced to bite the bullet.
Mark - N9WYS
-Original Message-
From: Repeater-Builder@yahoogroups.com On Behalf Of
We have the following surplus equipment available:
1 each Telewave ANT-150D single dipole antenna 138-172 NOS with all hardware
$175.00 each
2 each Telewave ANT-150D 4 bay dipole antenna 138-172 NOS with all hardware
$600.00 each
1 each Telewave ANT-150F2 fiberglass antenna 148-172 Demo/spare
At 8/9/2009 05:47, you wrote:
As frequency decreases, so does the importance of keeping the dipoles
exactly above one another. This is why you can get away with mounting the
bays of a LB array around a smaller tower (like Rohn 25) and still have
very good omni-directional performance.
At 8/8/2009 21:33, you wrote:
As have many other parts of the country - to 12.5 kHz on 440.
But, when you say narrowbanding, are you talking the actual users
switching from NBFM (16.0 kHz BW) to SNFM (11.0 kHz BW) or are you just
talking about the bandplan going from 25.0 kHz channels to 20.0 kHz
It was indeed the Telewave ANT-150D that I had seen; I just found the ad in
the August QST.
Unfortunately, the Telewave is out of the budget for this project though.
Is anyone familiar with the Antenex YDA1364? (4 dipole array)
http://www.ameradio.com/product/9449/description.html Has
Martin,
The best place to get that information is from the company that built it.
Contact Sinclair Technologies at 800-263-3275.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of cruizzer77
Sent:
Does anyone have a source for these capacitors,
Which are used in Motorola Micor power supplies?
TPN1106A? C1006-C1009? 2000 mfd, 100V @10%
C1012, C1013? 17,500 mfd 20V @10%
TPN1110A???C1? 6 mfd @ 660v
C2-9 17,500 mfd 20v @ 10%
TPN1151A? C1-2? 8000 mfd 35v @ 10%
73's,??? Jim?Kh6jkg.
Lots of comments on the unidirectional pattern which I suggested might
not work well.
Any comments on having the elements on one side of the tower right on
the leg?
Joe M.
n...@no6b.com wrote:
At 8/9/2009 05:47, you wrote:
As frequency decreases, so does the importance of keeping the
If you want to get better omni coverage, you'll need to attach the dipoles
to a mast and use stand-off brackets to hold it away from the tower. The
pattern will still be affected by the tower, but not as drastically.
Chuck
WB2EDV
- Original Message -
From: MCH m...@nb.net
To:
DOH! Let me rephrase that...
Lots of comments on the omnidirectional pattern which I suggested might
not work well.
Any comments on having the elements on one side of the tower right on
the leg?
Joe M.
MCH wrote:
Lots of comments on the unidirectional pattern which I suggested might
not
What was the spacing between the tower legs at the mounting location of the
dipoles in your model?
Allan Crites WA9ZZU
-- In Repeater-Builder@yahoogroups.com, n...@... wrote:
At 8/9/2009 05:47, you wrote:
As frequency decreases, so does the importance of keeping the dipoles
exactly
That will work well to favor one area.
Chuck
WB2EDV
- Original Message -
From: MCH m...@nb.net
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, August 09, 2009 7:40 PM
Subject: Re: [Repeater-Builder] 2M Vertical Dipoles
DOH! Let me rephrase that...
Lots of comments on the
Chuck, Would that be with the dipoles all pointed in the same direction, of
set up so they face different directions for Omni reception. I picked up an
almost new DB224 but no mast so I am following this thread with interest.
73 JIM KA2AJH
From: Repeater-Builder@yahoogroups.com
I was speaking of pointing all the elements in the same direction - away from
the tower, all mounted on the same leg. You should see good gain for about 180
degrees in the direction the elements are pointed. Hard to say whet you'll get
off the back of the tower, but it might not be as bad as
Anyone have any info on a Regency Micro-Comm U10R ?
Especially the pinout of the 15-pin Molex plug?
I have one here and was wondering if it was worth resurrecting.
Mike WA6ILQ
At 8/9/2009 16:41, you wrote:
What was the spacing between the tower legs at the mounting location of
the dipoles in your model?
No tower. Only the rooftop-mounted mast 4 dipoles, which is what I was
using at the time.
Bob NO6B
Comtech I believe has the modeling for antenna side mounting from tower and
it's affect on gain...
On Sun, Aug 9, 2009 at 7:14 PM, n...@no6b.com wrote:
At 8/9/2009 16:41, you wrote:
What was the spacing between the tower legs at the mounting location of
the dipoles in your model?
No
re: An advocate for a little audio compression.
Yeah, I know a decent number of you are in-stone
same-in to same-out repeater audio levels types.
However, I've changed my opinion.
A number of operators don't seem to have voices that
drive their radios with adequate audio and I always
seem
what equipment have you used to do the compression?
-- Original Message --
Received: Sun, 09 Aug 2009 08:07:45 PM PDT
From: skipp025 skipp...@yahoo.com
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] An advocate for a little audio compression
re: An advocate for a
I use a Behringer MDX2200.
I think it has been discontinued for some time. It has all the hot
stuff you want. Compressor, limiter, and a noise gate. It doesn't
take very long to tune it in. If you don't have it right, you'll know it...
Looks like they are going for about $75 on eSlay.
John
Let me be a little more specific and I'm sure the following
will stir up the normal bees nest I seem to always find.
I enjoy bringing up the average audio level using the
transmit limiter. In some cases that circuit is an agc
type and in some it's a straight forward limiter. I don't
normally
Me too. When the ACC RC850 audio levels are adjusted properly, the on-board
AGC gives around the 6-10db of AGC you describe. I believe it works pretty
well and is not annoying.
I used the term AGC intentionally. In the 850 the ratio is around 2:1, and
moderately slow to release. If release
Skipp, I generally agree, but it's not the fault of the user's voice. It's a
lack of training in mic technique, sometimes combined with audio circuits that
aren't easily user-accessible. Compression on the repeater eliminate's the
user's need to get things right at the source, and one day, he's
I have a micor Station , I did the mod for the cos on the audio sq board . I
have 9.6v no signal , with signal 0 volts. I need o volts no signal and 5 volts
or more for signal. I did the invert logic mod , with the 10 k npn 2n
transiter not enough voltage less than 1 volt. Any Ideas ?
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