Nigel M, former G1NDM wrote:
"Any suggestions on making or buying a replacement?"

I`ve installed coaxial antennas at VHF which worked well on boats. They
consist of a quarter-wave rod insulated and mounted on a quarter-wave
cylindrical skirt which surrounds the coax feedline. The match is good.
There are no radials to poke eyes. The assembly makes a half-wave
vertical antenna.

At 100 MHz, the wavelength is about 3 meters so the overall length of an
FM broafcast antenna should be about 1.5 meters. You likely can find
such an antenna for sale ready made. If not, it is not difficult to make
your own. The folded dipole made from TV twinlead also works well but
presents a 300-ohm impedance and may not work as well with your DIN
connector. It also requires suspension. The coaxial antenna usually is
equipped with a small mounting pipe surrounding the coax.

Best regards, Richard Harrison, KB5WZI

On Mon, 29 Dec 2008 08:29:15 -0600, (Richard
Harrison) wrote:

At 100 MHz, the wavelength is about 3 meters so the overall length of an
FM broafcast antenna should be about 1.5 meters.

I've got about half of this, maximum. What can I do?

Nigel M. wrote:
"What can I do?"

You are installing an FM receiving antewnna inside. Go for a twinlead
dipole about 5 feet long and accept the received signals you get. Range
is line of sight so the nearby stations with high antennas will probably
be received satisfactorily. MFJ may sell such a dipole readymade.

Best regards, Richard Harrison, KB5WZI

On Wed, 31 Dec 2008 10:25:15 -0600, (Richard
Harrison) wrote:

Go for a twinlead dipole about 5 feet long

Like I said in the post you replied to, I have about half this.

Go for a twinlead dipole about 5 feet long

Like I said in the post you replied to, I have about half this.

Try starting with a twinlead dipole of this length, and shape it into
a near-circle with around 6" between the ends of the arms.

This will give you a vaguely-omnidirectional pattern, using an antenna
which fits into a 2' circle.

--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
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