Len
Try orienting the yagi horizontally. That should increase side rejection of
the offending signal.
Jeff - - NJ5R
--- On Sun, 9/28/08, n2len [EMAIL PROTECTED] wrote:
From: n2len [EMAIL PROTECTED]
Subject: [Repeater-Builder] UHF LINK ANTENNA QUESTION HELP NEEDED!
To:
Although it really only masks the problem, you can use CTCSS tone to avoid
hearing the distant transmitter. Of course, the repeater you're linking to
must encode CTCSS, and your link must decode it.
A more technical approach is to use a modest-gain Yagi antenna pointed
directly at the offending
For now I received permission to link directly on their input until
the club installs a remote base and yagi next spring.
There repeater is about 20 air miles away. I am using a 5 element UHF
Yagi about 45 feet up a 170 Rohn 65 at my hub site!
The Yagi is facing due West. The link works
You can try lowering the antenna.
You can try a better antenna, one with a better front to back ratio
and better side lobe rejection.
If that does not work, you can try something that we do to our
microwave dishes when we receive off axis interference, place a
shield near the side of the yagi
repeaters and
links.
Very best of 73,
Russ, W3CH
- Original Message -
From: Tedd Doda [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, March 29, 2004 10:41 AM
Subject: Re: [Repeater-Builder] UHF link
On Mon, 29 Mar 2004 09:31:02 -0500, russ wrote:
We
posted as to how we make out the 927 repeaters
and
links.
Very best of 73,
Russ, W3CH
- Original Message -
From: Tedd Doda [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, March 29, 2004 10:41 AM
Subject: Re: [Repeater-Builder] UHF link
On Mon, 29
I doubt if you would get repeater council approval to link at that power
level, most linking is done 15-20 miles with 3-5 watts and then someone
might turn it up to 10 watts to overcome foliage and insure a reliable
path in horrible weather.
dy3lmk143_13mhz wrote:
I've never had experience on
-Original Message-
From: dy3lmk143_13mhz [mailto:[EMAIL PROTECTED]
Sent: Sunday, March 28, 2004 5:39 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] UHF link
I've never had experience on UHF. any experience how far would a 50
watts UHF link (440 MHz) can get?
I can't help you much with the connection method, but I can give you an
example of how much power is needed to link repeaters. My IRLP node, located
at my house, is linked to the repeater using small beam antennas over a
distance of about 12 miles. Even with an intervening hill, it is done using
Line of sight should give you 100 miles with only 5-10 watts. I've done 65
miles with one watt.
Chuck
WB2EDV
- Original Message -
From: Richard [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, March 28, 2004 9:31 PM
Subject: RE: [Repeater-Builder] UHF link
I
Well I don't know how far one can link with 440. However I have a link of 50 miles with 10 watts. Fred KF4QZN - Original Message - From: dy3lmk143_13mhz Sent: Sunday, March 28, 2004 7:39 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] UHF link I've never had
Here in Southern California the surrounding border-areas, there are
several systems with long paths on 420MHz (the same as 440MHz path
behavior). One of the longest is ~165 miles @ 13W before duplexer/feedline
losses. 10-20W is quite typical for links, and 50W is overkill for most.
Most of
repeaters and
links.
Very best of 73,
Russ, W3CH
- Original Message -
From: Tedd Doda [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, March 29, 2004 10:41 AM
Subject: Re: [Repeater-Builder] UHF link
On Mon, 29 Mar 2004 09:31:02 -0500, russ wrote:
We are going
On Mon, 29 Mar 2004 09:31:02 -0500, russ wrote:
We are going to change it from 420
MHz to 927 MHz over the week end of April 4th.
Hi Russ:
What are you using for radios? Also, any foreseen problems
from cordless phones?
Thanks,
Tedd Doda, VE3TJD
Lazer Audio and Electronics
Baden, Ontario,
Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, March 28, 2004 10:31 PM
Subject: Re: [Repeater-Builder] UHF link
Here in Southern California the surrounding border-areas, there are
several systems with long paths on 420MHz (the same as 440MHz path
behavior
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