Subj : Re: Antenna
To   : THOM LACOSTA
From : BEN RITCHEY
Date : Tue Jul 05 2005 11:48 am

* An ongoing debate between Thom Lacosta and Ben Ritchey rages on ...

BR>> I have a weather radio that get's poor reception so I'd like to
| TL> Some folks have used a "long wire" and coupled it loosely to the
| TL> receiver using a coil that resonates at the frequency of
| TL> interest....you could try wrapping a few turns of the insulated
| TL> antenna wire around the rod antenna.

Don't I need some sort of tank circuit to resonate the coil? Assuming a Freq of
162.4 MHz how many turns of #12 wire around a 1/4" rod would I need to resonate
properly, if feasible to do so that way?

| TL> Another factor to consider is the polarization of the transmitted
| TL> signal.  Most of VHF stuff is vertical....your sky catcher has a
| TL> decent amount of vertical capture.

I wondered about that. Assuming a long-wire antenna (2-4l), would excess
horizontal tend to attenuate the vertical portion of the reception?

| TL> If it were me...I'd play not only with the loose coupling, but also
| TL> the orientation of the wire....and at the same time look around for a
| TL> vhf pre-amp....

Sounds like a plan, thanks.

--
Be well    :^)

: Ben   aka cMech    http://bellsouthpwp.net/c/m/cmech617/
:
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