On Sun, 11 Oct 2009, Jacob Suter wrote:
I thought the prefered poor-man's repeater antenna was a J-pole?
Single folded dipole IMO.
Out of curiosity - are the 'square dipole' (or 'gapped loop' or whatever
they want to call them) antennas usable for repeater use? Example:
Hi again,
We are looking to replace that used antenna after getting 100 feet of new
Andrews 1/2 donated to our club.
Now I realize that the DB type antenna is the best, but we do not have 800
bucks to buy one.
So, my question is should we just get a new G7-144 to replace the used G7 or is
@yahoogroups.com
Date: 10/11/2009 10:09:31 AM
Subject: [Repeater-Builder] Antenna question
Hi again,
We are looking to replace that used antenna after getting 100 feet of new
Andrews 1/2 donated to our club.
Now I realize that the DB type antenna is the best, but we do not have
800 bucks to buy one
W3ML wrote:
Hi again,
We are looking to replace that used antenna after getting 100 feet of new
Andrews 1/2 donated to our club.
Now I realize that the DB type antenna is the best, but we do not have 800
bucks to buy one.
So, my question is should we just get a new G7-144 to replace the
: Sunday, October 11, 2009 10:09 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Antenna question
Hi again,
We are looking to replace that used antenna after getting 100 feet of new
Andrews 1/2 donated to our club.
Now I realize that the DB type antenna is the best
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of W3ML
Sent: Sunday, October 11, 2009 7:09 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Antenna question
Hi again,
We are looking to replace that used antenna after getting 100 feet of new
Andrew 1/2 donated to our club
On Sun, 11 Oct 2009, Thomas Oliver wrote:
Buy a commercial one and cry once.
What he said. Give until it hurts, but a DB-224 or a Super Stationmaster
with upper brace are a necessity in environments where ice damage is a
possible. Do it once, do it right.
Or do it every week/month/year. Are
Kris Kirby wrote:
On Sun, 11 Oct 2009, Thomas Oliver wrote:
Buy a commercial one and cry once.
What he said. Give until it hurts, but a DB-224 or a Super Stationmaster
with upper brace are a necessity in environments where ice damage is a
possible. Do it once, do it right.
Or do it
.
David
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Eric Lemmon
Sent: Sunday, October 11, 2009 11:45 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Antenna question
John,
My suggestion
Our group has a Sinclair 8 dipole array for UHF.
The repeater was recently moved, and has not been behaving as usual.
It hears OK, but seems weak on transmit.
One of the members went up to the site last night with an MFJ antenna
analyser - and he measured SWR at 3:1 - with no real resonant
]
To: Repeater-Builder@yahoogroups.com
Sent: Friday, September 05, 2008 9:43 AM
Subject: [Repeater-Builder] Antenna question
Our group has a Sinclair 8 dipole array for UHF.
The repeater was recently moved, and has not been behaving as usual.
It hears OK, but seems weak on transmit.
One
, 2008 8:44 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Antenna question
Our group has a Sinclair 8 dipole array for UHF.
The repeater was recently moved, and has not been behaving as usual.
It hears OK, but seems weak on transmit.
One of the members went up to the site
--- On Fri, 9/5/08, Ian Miller [EMAIL PROTECTED] wrote:
From: Ian Miller [EMAIL PROTECTED]
Subject: [Repeater-Builder] Antenna question
To: Repeater-Builder@yahoogroups.com
Date: Friday, September 5, 2008, 9:43 AM
Our group has a Sinclair 8 dipole array for UHF.
The repeater
Ian,
As some others have pointed out, I too have seen a little odd response
from the MFJ analyzer too. I very recently used one to toy around with
several DB420 antennas. The MFJ wasn't wrong really, but it did not
give the same response that two different SWR/Wattmeters powered by
two
Message -
From: Ian Miller
To: Repeater-Builder@yahoogroups.com
Sent: Friday, September 05, 2008 7:43 AM
Subject: [Repeater-Builder] Antenna question
Our group has a Sinclair 8 dipole array for UHF.
The repeater was recently moved, and has not been behaving as usual
For what it's worth, I'll add my two cents:
After assembling and tuning a 2 meter Ringo antenna, I wiped it down with
rubbing alcohol and then sprayed it with urethane spar (marine) varnish, which
I bought at K-mart. I used an entire can (12 ounces maybe). The antenna
performed well through
OK guys, along this same line, I have a VHF all copper J-Pole and plan on
building UHF all copper J-pole.
Is common clear lacquer OK to prevent corrosion on the copper elements? I have
used automotive type black silicone under 2 wide electrical tape to seal
connections and the coax itself.
On Sun, 4 May 2008, Bruce Bagwell wrote:
OK guys, along this same line, I have a VHF all copper J-Pole and plan
on building UHF all copper J-pole. Is common clear lacquer OK to
prevent corrosion on the copper elements? I have used automotive type
black silicone under 2 wide electrical tape
At 08:44 AM 05/01/08, Ron Wright, N9EE wrote:
(big chunk cut out)
One other plus for
folded dipole antennas, the fiberglass antennas are much more prone to
become toothpicks with a lightning strike where a 224 will most likely
survive.
Plus in windy areas they need a top support to prevent
At 5/3/2008 11:44, you wrote:
At 08:44 AM 05/01/08, Ron Wright, N9EE wrote:
(big chunk cut out)
One other plus for
folded dipole antennas, the fiberglass antennas are much more prone to
become toothpicks with a lightning strike where a 224 will most likely
survive.
Plus in windy areas
hi all,
I am about to replace a DB224 side mounted at 1175 ft above ground. The
antenna is close to the Gulf, 0.5 mi, and think the salt air got to it. It has
been up about 12 years and now has an SWR of 2:1. The coverage is very
noticeably less.
I am thinking of a Super Station Master
] On Behalf Of Ron Wright
Sent: Thursday, May 01, 2008 9:39 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] antenna question
hi all,
I am about to replace a DB224 side mounted at 1175 ft above ground. The
antenna is close to the Gulf, 0.5 mi, and think the salt air got
for
install. All of what you did was done, but not sure about this antenna.
73, ron, n9ee/r
From: Paul Finch [EMAIL PROTECTED]
Date: 2008/05/01 Thu AM 10:44:37 CDT
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] antenna question
Ron,
I am a big proponent of the DB line
Paul Finch wrote:
I have posted this several times on R/B and will do it again. When you get
Maybe it should be an article? :-)
Nate WY0X
to think on the DB224 or Station Master. I like
both, but lean toward the Station Master.
73, ron, n9ee/r
From: Paul Finch [EMAIL PROTECTED]
Date: 2008/05/01 Thu AM 10:44:37 CDT
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] antenna question
Ron,
I am a big proponent
: RE: [Repeater-Builder] antenna question
Ron,
I am a big proponent of the DB line of antennas but I also add that they
must be set up correctly before they are installed, especially in a high
humidity/salt air environment like you are talking about. The following is
what I learned form the two
Ron Wright wrote:
I'm giving myself about a week to think on the DB224 or Station Master. I
like both, but lean toward the Station Master.
Heh, my usual comment... everyone will be expecting this one...
Have you considered a Sinclair with the harness internal to the antenna?
I still think
Subject: Re: RE: [Repeater-Builder] antenna question
Paul,
I talked with my friend about the DB224. He said as you did. When you get
it you have to tighten the hardware. Some was more than finger loose. This
is for all antennas, but more for DB Products.
He has used the Scotchkote. He likes
Nate,
My problem is not the harness, but the exposed dipoles.
73, ron, n9ee/r
From: Nate Duehr [EMAIL PROTECTED]
Date: 2008/05/01 Thu PM 07:00:56 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] antenna question
Ron Wright wrote:
I'm giving myself
: [Repeater-Builder] Antenna Question
It depends on band, split, power, and antenna gain.
On Tue, 22 Apr 2008 02:00:23 -
Christopher Hodgdon HYPERLINK
mailto:chris.hodgdon%40kaufman-ares.org[EMAIL PROTECTED]
wrote:
We are looking at setting up a basic (I know there is no
such thing
At 07:00 PM 04/21/08, you wrote:
We are looking at setting up a basic (I know there is no such thing)
repeater. What I need to know, if you do not have a duplexer to run
your antenna through, but have two antennas, with one on the TX and
one on the RX how far apart do they have to be to be able
We are looking at setting up a basic (I know there is no such thing)
repeater. What I need to know, if you do not have a duplexer to run
your antenna through, but have two antennas, with one on the TX and
one on the RX how far apart do they have to be to be able to correctly
operate?
It depends on band, split, power, and antenna gain.
On Tue, 22 Apr 2008 02:00:23 -
Christopher Hodgdon [EMAIL PROTECTED]
wrote:
We are looking at setting up a basic (I know there is no
such thing)
repeater. What I need to know, if you do not have a
duplexer to run
your antenna
:00 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Antenna Question
We are looking at setting up a basic (I know there is no such thing)
repeater. What I need to know, if you do not have a duplexer to run
your antenna through, but have two antennas, with one on the TX and
one
There is a DB224 with internal harness. Not made for Ham band, but for
150-160, etc.
73, ron, n9ee/r
From: Larry Wagoner [EMAIL PROTECTED]
Date: 2008/03/24 Mon PM 05:41:52 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Antenna question
At 05:37 PM
7:57 AM
Subject: Re: Re: [Repeater-Builder] Antenna question
There is a DB224 with internal harness. Not made for Ham band, but for
150-160, etc.
73, ron, n9ee/r
From: Larry Wagoner [EMAIL PROTECTED]
Date: 2008/03/24 Mon PM 05:41:52 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re
At 10:07 AM 3/25/2008, you wrote:
Maybe that's what he has, even though he said it wasn't a DB products. But
he said antenna rod, not tubing. Was that particular model made with rod?
Chuck - have been told by someone else that it is a Sinclair. I can
find no tag or ID on it that tells me that
I have what may see to be a dumb question ...
I have in my possession what I am told is a Sinclair 224 VHF four-bay
folded dipole.
My MFJ 259 says the antenna is resonant at 147.1 - which is close
enough for the frequency where I want to use it: 145.150.
This is an older antenna - and I am
You may have something else. The SRL-224 has an external harness.
Chuck
WB2EDV
- Original Message -
From: Larry Wagoner [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, March 24, 2008 6:09 PM
Subject: [Repeater-Builder] Antenna question
I have what may see
At 05:37 PM 3/24/2008, you wrote:
You may have something else. The SRL-224 has an external harness.
Hmmm - this thing has a harness interior to the mast and which runs
through the center of the arms which hold the bays.
Ideas?
Larry
N5WLW
Sent: Monday, March 24, 2008 6:41 PM
Subject: Re: [Repeater-Builder] Antenna question
At 05:37 PM 3/24/2008, you wrote:
You may have something else. The SRL-224 has an external harness.
Hmmm - this thing has a harness interior to the mast and which runs
through the center of the arms which
At 05:48 PM 3/24/2008, you wrote:
Is there a blob of heat-shrink tubing at the middle of the element -
furthest away from the mast?
Nope - just aluminum rod
Larry
N5WLW
At 05:48 PM 3/24/2008, you wrote:
Is there a blob of heat-shrink tubing at the middle of the element -
furthest away from the mast?
One other thing ... the arms holding the dipole away from the mast is
only about 8 inches long - and extends to both the inside and outside
of the dipole.
Not
Subject: Re: [Repeater-Builder] Antenna question
At 05:48 PM 3/24/2008, you wrote:
Is there a blob of heat-shrink tubing at the middle of the element -
furthest away from the mast?
Nope - just aluminum rod
Larry
N5WLW
Than it's not a SRL-224. On those, the element attaches directly to the mast
(and the harness is external).
Chuck
WB2EDV
- Original Message -
From: Larry Wagoner [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, March 24, 2008 7:36 PM
Subject: Re: [Repeater-Builder
I am looking into rebuilding a Diamond X510 antenna this spring and I
had a question about the moisture problems these antennas expierence.
I know the foam spacers are a bad idea from the start but has anyone
tried anything else? I once worked with an old Antenna Specialists UHF
omni that
I am looking into rebuilding a Diamond X510 antenna this spring and I
had a question about the moisture problems these antennas expierence.
I know the foam spacers are a bad idea from the start but has anyone
tried anything else? I once worked with an old Antenna Specialists UHF
omni that
Hi Steve,
First, avoid using LMR-400 for duplex use. This and 9913 are not good
for duplex. Aluminum shield and tinned copper braid rubbing together
and setting up corrosion causing noise. This is not a very long run,
try and get some 1/2 hardline, you will not be disappointed. Spend
At 02:24 PM 2/1/2008, you wrote:
Hi Steve,
The Diamond and Comet antennas will probably only last one or two
seasons in your weather! I could write two pages of faults in
construction on these brands. Just not build sturdy enough. They don't
last long here in Michigan. I am in the Detroit
@yahoogroups.com
Sent: Friday, January 25, 2008 3:43 PM
Subject: [Repeater-Builder] Antenna question for the forum.
Goodafternoon,
Me and a friend are putting up a secondary VHF repeater and have a
antenna question. Being we are on a budget but have looked at these 2
antennas as options
: Saturday, January 26, 2008 2:59 PM
Subject: Re: [Repeater-Builder] Antenna question for the forum.
If either takes a lightning strike the fiberglass will explode. I have had
that happen with both.
Check into Tram antennas. they seem electrically and mechanically similar to
the diamond
Goodafternoon,
Me and a friend are putting up a secondary VHF repeater and have a
antenna question. Being we are on a budget but have looked at these 2
antennas as options.
Diamond F22A monoband base or the Husler G6-144B
Any pros or cons to these antennas and which would you choose or you
: [Repeater-Builder] Antenna question for the forum.
Goodafternoon,
Me and a friend are putting up a secondary VHF repeater and have a
antenna question. Being we are on a budget but have looked at these 2
antennas as options.
Diamond F22A monoband base or the Husler G6-144B
Any pros or cons
-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Friday, December 30, 2005 11:52 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Antenna Question
Hello to the list. Has anyone used or using the MFB1503 Series
antenna
Hello to the list. Has anyone used or using the MFB1503 Series
antenna as a repeater antenna? If so, what do you think of it? This
will be for 2 meter use, at about 3,200' here in Washington state; will
get ice and snow build up. Any comments? Thank you.
Rod
Yahoo! Groups Links
* To
technical in nature nad some in PDF file
Mark Holman AB8RU
Happy Holidays
- Original Message -
From: talviar4499 [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, December 21, 2004 1:45 PM
Subject: [Repeater-Builder] antenna question for 2M ham. . .
OK.
One
OK.
One of the repeaters I help maintain (145.170 located in
Connellsville, PA on the mountain) recently lost an antenna in the
wind storms that hit us around the beginning of December.
Antenna we had on the tower was a Celwave PD340-3 (If you have never
seen a 4 bay folded dipole with the
Sinclair makes excellent dipoles. We switched to them several years ago
and never looked back.
http://www.sinctech.com/
Mike
K6MJU
OK.
One of the repeaters I help maintain (145.170 located in
Connellsville, PA on the mountain) recently lost an antenna in the
wind storms that hit us
Yes they do.
Chuck
WB2EDV
- Original Message -
From: mike [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, December 21, 2004 3:42 PM
Subject: Re: [Repeater-Builder] antenna question for 2M ham. . .
Sinclair makes excellent dipoles. We switched to them
Hello to the list. I know this topic has come up over and over before,
but, I have a question. I have a Stationmaster type antenna that I
want to retune. I am trying WD8CHL's mod. I have put three pieces
of aluminum foil on and it has not changed the SWR reading from
the first piece I put on.
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