That might be true, but your original implication stated that changing
the element spacing was done to get downtilt; which is not possible.
Your original implication also said nothing about the harness which
would lead others to believe that the only thing needed to obtain
downtilt on a
When I converted my 224 to VHF amateur band, the element length went
from 35 inches (150mhz unit) to 37 inches (144mhz). The spacing on
the elements was somewhat limited by the new harness length. Had to
work with it a good bit to get somewhat equal spacing on the pole.
Had to lengthen
, 2005 5:46 PM
Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
russ wrote:
Hey every one,
Let us not forget that they change the spacing to get down till on the
DB-224.
Wrong.
The only way to get downtilt on a binary fed exposed dipole array is to
either build
KAG0378
EIEIO 2722
Acworth Georgia
-Original Message-
From: Chuck Kelsey [mailto:[EMAIL PROTECTED]
Sent: Monday, January 24, 2005 6:46 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110
Mhz?
Mike's suggestion is the best method
- Original Message -
From: Kevin King [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 24, 2005 10:29 PM
Subject: RE: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
There is a model folded dipole I saw for 30 megs that had tunable rods at
the top
,
- Original Message -
From: Kevin Custer [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 24, 2005 5:46 PM
Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
russ wrote:
Hey every one,
Let us not forget that they change the spacing to get down
This is also why you get different spacing on
the dipoles. It also depends what year in time
your harness was made. Over the years they
changed coax with new owners (of DB) and that
also
has a spacing change. Be careful. If you are
and do it right you will not have to buy a new
DB-224.
If
Hi all
I've followed this thread with great interest seeing that our club
just purchased a DB224E to replace an aged stationmaster.
Question...We ordered the 138-150 mHz model, Tessco part # 62446.
There was nothing in the paperwork referencing element spacing or
anything else along those
Well we all deal with Tessco but when you deal with
the
large box house you get NO consumer service. And
no
tech support. Yes you could have ordered your 224
from
Tessco tuned for your transmit but you would have
had
to wait for it.
Good luck!
Dean,
Yahoo! Groups Links
To
, January 25, 2005 9:01 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
The thread concerns taking an out of band antenna down to the ham portion of
the band - necessitating a new harness and different spacing. If yours
- Original Message -
From: rtoplus [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, January 25, 2005 8:55 AM
Subject: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
Hi all
I've followed this thread with great interest seeing that our club
just purchased
At 05:55 AM 1/25/05, you wrote:
Hi all
I've followed this thread with great interest seeing that our club
just purchased a DB224E to replace an aged stationmaster.
Question...We ordered the 138-150 mHz model, Tessco part # 62446.
Tessco is a out of sight, out of mind organization.
They do not
Thanks all for the infowipes nervous perspiration drops off
brow I thought it would be fine, but I wanted to make sure. We
will be side mounting the antenna so I will be ordering the DB5001
mounting kit.
73
Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892
Yahoo! Groups Links
*
I have seen the screw in the ends modification and am leaning in
that direction. But they need to be well sealed I am sure to prevent
corrosion and the associated noise that can be produced.
I understand that the element to the support contact needs to be
welded also to remove that
The distance from the top of the pole to the top dipole is not
critical and could easily be moved up to get more room down below for
more spacing. The dipoles need to work up against the pole for proper
impedance but if the top of the top dipole is 3-4 down that should be
OK. If you still
, 2005 9:00 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
The distance from the top of the pole to the top dipole is not
critical and could easily be moved up to get more room down below for
more spacing. The dipoles need to work up
is the
same group that uses a mag mount mobile antenna.
Just an observation. You may disagree.
Chuck
WB2EDV
- Original Message -
From: Mike Morris WA6ILQ [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 24, 2005 12:20 AM
Subject: Re: [Repeater-Builder] Re: DB224
Hello All,
Do not count on this info being right.
The top needs to be right from the
top of the mast support pipe to the
1st dipole and then center to center
on each after. If the support pipe is
not long enough get a longer one. They
come in different lengths one for 222
is shorter then
Part of the different's is between the harness.
Different'sin factors in the coax used.
That is why we have to watch out here at
work when repairing DB-224's. Be careful.
Over the years and with change of ownership
DB has made changes along the way.
Dean Westbrook, EE,PE.
At 04:29 PM 1/23/05, you wrote:
I have seen the screw in the ends modification and am leaning in
that direction. But they need to be well sealed I am sure to prevent
corrosion and the associated noise that can be produced.
I understand that the element to the support contact needs to be
welded
] [mailto:[EMAIL PROTECTED]
Sent: Monday, January 24, 2005
5:44 AM
To:
Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder]
Re: DB224 Loop Lengths for 145.110
Mhz?
Hello All,
Do not count
on this info being right.
The top
needs to be right from the
top of the
mast
-
From: Mike Morris WA6ILQ [mailto:[EMAIL PROTECTED]
Sent: Monday, January 24, 2005 6:17 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
At 03:46 AM 1/24/05, you wrote:
Mike's suggestion is the best method and the one I would
-Builder@yahoogroups.com
Sent: Sunday, January 23, 2005 6:05 PM
Subject: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
I just measured mine (not as cold in North Florida as for you guys,
but it was interesting to measure the deminsions on my two antennas:
Both Had top element
russ wrote:
Hey every one,
Let us not forget that they change the spacing to get down till on the DB-224.
Wrong.
The only way to get downtilt on a binary fed exposed dipole array is to
either build the phasing harness so the electrical length feeding each
element is slightly longer in phase
Well I am not so sure on that one just yet. Was told that the first element
was 26 from the top, and each element was 58 1/4 center to center from
there, and if that is true, then I'm going to end up with my last element
down into the clamp area. I've been sick most of this week, so have not
This is 100% correct right of the DB chart.
You will be just fine if you set your DB-224
up this way!
Dean Westbrook, EE,PE.
Cook Towers, INC.
Yahoo! Groups Links
To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/
To unsubscribe from this
It is 28" from the top of the pipe not from the end
cap on the top of the antenna.
Dean,
Yahoo! Groups Links
To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/
To unsubscribe from this group, send an email to:[EMAIL PROTECTED]
Your use of
-Builder]
Re: DB224 Loop Lengths for 145.110
Mhz?
This is 100%
correct right of the DB chart.
You will be
just fine if you set your DB-224
up this way!
Dean
Westbrook, EE,PE.
Cook Towers,
INC.
Yahoo! Groups Links
To visit your group on the web
Ok, was given 26, might have wrote
it down wrong. Thanks for clearing that one up.
Mathew
From:
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 23, 2005
2:22 PM
To:
Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder]
Re: DB224 Loop Lengths
Thanks, I hope you feel better soon.
Russ
N4KOX
--- In Repeater-Builder@yahoogroups.com, Mathew Quaife [EMAIL PROTECTED]
wrote:
Well I am not so sure on that one just yet. Was told that the
first element
was 26 from the top, and each element was 58 1/4 center to
center from
there, and
pipe is the
wrong one.
Sounds like you will have fun when the weather breaks.
73 Russ, W3CH
- Original Message -
From: Mathew Quaife [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, January 23, 2005 5:08 PM
Subject: RE: [Repeater-Builder] Re: DB224 Loop Lengths
Oh indeed, will give it a shot and see what happens, hate to mess it up
since I have to redrill the holes for the new harness. As for fun when the
weather breaks, you bet, a 100' Self Support Pyrod to install, at least 4
other towers for GMRS and the repeater, all over 100'. Sounds like a busy
and it
has 35 inch loops on an 18 ft mast.
John Lock KF0M
Wichita KS
kf0m at arrl dot net
-Original Message-
From: Mathew Quaife [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 23, 2005 4:08 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Re: DB224 Loop Lengths
I just measured mine (not as cold in North Florida as for you guys,
but it was interesting to measure the deminsions on my two antennas:
Both Had top element center 26 from top of pipe (so that was OK.)
Both had 34.25 inch loops (top to bottom)(reasonable)
Both had 62 separations from center
element to extend them
out to the 37 inch dimension.
John Lock KF0M
Wichita KS
kf0m at arrl dot net
-Original Message-
From: highlandfl [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 23, 2005 5:05 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: DB224 Loop
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