Hello,

A dipole mounted too close to a metal pole will cause a cardioid pattern.
The coordinates don't mean much to me, but a picture would with all the
station TXs and your marked on it .
The problem is, if you have a local 10K transmitter and try to null it out
in favour of a distant station, it will probably not work. Calculate the
loss of say 20 or 30dB to a local TX.
Buy a DAB instead (if you like MW sound quality as they TX in MONO). You
might hear the stations that way.

"Richard" wrote in message
...
I'm trying to receive some a distant FM stations, but I have locals
0.1Mhz
away that block the desired station out. I could try to use a big gain
directional yagi, but perhaps the solution is to make use of a null.

Anyone know of any antenna system that would produce a real good null in
the FM band? Would that be to try for a cardoid pattern? Or is there
something better than that?


Detail:

Intended Coord.of Interfering Coord.of Angular
station + antenna station + antenna sep. of
Freq. Freq. stations
Mhz Mhz from my

QTH
-------------------------------------------------------
Scarboro' 00w24/ RadioAire 01w34/ 45
96.2 54n16 96.3 53n44 degrees

Bridlington 00w12/ Pulse FM 01w45/ 114
102.4 54n05 102.5 53n48 degrees

Whitby 00w36/ Sunrise Radio 01w45/ 75
103.1 54n29 103.2 53n50 degrees


As you see the seperation between the wanted stations and the interfering
stations range from appx.45 degrees to 114 degrees. Intefering stations
are
always anticlockwise to the wanted station, but perhaps that makes no div.

BTW I think the Bridlington transmitter antenna coordinates are
00w12/54n05.
Wonder if anyone can confirm this.

Data obtained from:

http://www.ukwtv.de/fmlist/countries.html

Where Bridlington is on107.4 Mhz, which is now incorrect, because
Bridlington is on 102.4Mhz.

TIA.Rich.