[TowerTalk] re Gap Titan radials

[Jim Lux]

At 07:33 AM 6/12/2006, Rob Atkinson, K5UJ wrote:
>If you string out the radials for your Titan, it would be interesting to 
>do an A/B test, With Radials and Without them, and report back here.

Tricky to do a real A/B because you'd have to remove the radials (not just 
disconnect them) to get one of the test conditions.

If you had two of the antennas, you could set them up in similar 
conditions, some distance apart, one with radials and one without, and 
compare simultaneously.



What might be a way to do the test is to do a A/B/C comparison.

Set up a reference antenna (C) which doesn't change during the test.  It 
could be a short dipole, or one of those short active whips.

Then, setup the Titan w/o radials.  Call that A.  Compare A and C over some 
length of time, and record the average difference between them (let's 
assume that our C antenna is kind of lame, so the A antenna is, on the 
average 10 dB stronger).

Then roll out the radials.  Call that B.  Compare B and C... record the 
differences.  See if they're significantly different than the A/C differences.




Jim, W6RMK



>   I for one would sure be interested in the results as I have a Titan 
> also.   Having a radial screen under a vertical dipole is done by WWVH 
> because they are on sand and experience ground loss.   If a vertical 
> dipole is close enough to the earth's surface this can be a problem.
>
>tnx
>
>rob / k5uj
>
>_________________________________________________________________
>FREE pop-up blocking with the new MSN Toolbar ­ get it now! 
>http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/
>
>
>
>_______________________________________________
>
>
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk at contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk