Hi Jim,
If you want to do this the brute force way, choose Option A. For the easy way,
skip immediately to Option B!
Option A: I suggest you run some numbers to see if what you are trying to do is
realistic. Are there any off-periods for the LP station? Put up an omni antenna
and measure the difference in signal strengths of the two stations. This
difference plus 2-3db is your target. In order to get acceptable reception of
the remote station, you will need to use antenna patterns, and nulling
strategies to get its strength just a few db better than the LP station. For
many receivers, capture will occur with as little as a couple of db difference.
Option B: http://www.kcsm.org/fm_listen.html
Good luck!
Jim
[TowerTalk] MATV-Quality FM Broadcast Yagi
from [Jim Brown] [Permanent Link][Original]
To: "Tower Talk List" <towertalk@contesting.com>
Subject: [TowerTalk] MATV-Quality FM Broadcast Yagi
From: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Mon, 05 Jun 2006 18:06:11 -0700
List-post: <mailto:towertalk@contesting.com>
I have a tough reception condition at my new QTH -- a LPFM is 1.5
miles away and on the same channel as San Francisco's great jazz
station (KCSM). Luckily they are about 160 degrees away in azimuth,
so I may have a chance if it throw a serious antenna at it (and maybe
even a cancelling antenna to null the LPFM. I'm having a hard time
finding good choices though -- the two best bets seem to be a 10
element Winegard and a 13-element model (12 ft boom) from Antenna
Performance Specialties. Both cover the entire FM band, but I care
only about the bottom 4 MHz, so I'd gladly buy a narrow band antenna
that is tweaked for a bit more gain and F/B. And F/B is far more
important than an extra few dB of gain.
Any ideas? Other options? Is there an MATV product that might be
narrow band? Has anyone used the APS product or know anything about
them?
Please email me off list, since this is a bit off topic.
Thanks,
Jim Brown K9YC
Jim Idelson K1IR
email k1ir at designet.com
web http://www.k1ir.com
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