[Elecraft] [OT] Diversity Receiving Antennas

[Dave Van Wallaghen]

Bill,

Yes, I would agree with you. My transmitting doublet runs N and S while my unterminated wire runs E and W with a height difference of almost 30'. So I'm sure it meets the criteria you laid out.

For my more permanent installation I plan to use one of the ICE RF limiters on the Beverage input.

Thanks again for your comments. I'm starting to get a better picture of what I'm going to do.

73,
Dave W8FGU
------Original Message------
From: Bill W4ZV
Sender: elecraft-bounces at mailman.qth.net
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] [OT]   Diversity Receiving Antennas
Sent: Jul 27, 2009 7:21 AM


Dave et al,

A diversity RX antenna doesn't need to be complicated.  All you need is
something that is somewhat different than your TX antenna.  By "different" I
mean:

1. different polarization (e.g. a vertical if you're using a Yagi).
2. different takeoff angle (e.g. a low tribander you're using a high one)
3. different azimuth angle (e.g. a tribander pointed in a different
direction)

Your "Beverage" was probably acting like a low horizontally polarized
antenna with a high takeoff angle, so it filled several of the above
criteria.  If you do use another Yagi, take precautions to limit the RX ANT
input when transmitting.

73,  Bill
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