Topband: Inverted L redux

[rgarrett5 at comcast.net]

Pete,

Traditional wisdom is, if you have the choice of short or long radials, more shorter ones are preferred over a few long ones.  However, 50 60 foot radials are not considered long for 160 meters.  I have found that 50 to 60 radials will do a great job.  At least 30 is a good starting point.  73, Bob K3UL  

-----Original Message-----
From: Topband <topband-bounces at contesting.com> On Behalf Of N4ZR
Sent: Monday, September 2, 2019 3:08 PM
To: topband reflector <Topband at contesting.com>
Subject: Topband: Inverted L redux

More as an experiment and a thought-provoker than anything else, I've started adding 50-60-foot, on-the-ground radials to my 135-foot inverted L.  In the latest incarnation I'm up to 4 radials.  On my ancient MFJ-259B the lowest SWR is 1.3:1 at 1825 KHz, with an R of 77. X=0 (the 259B doesn't give the sign of j) from 1808 to1894, which I assume is roughly centered on the actual cross-over point.

With my rudimentary knowledge of such things, I'm guessing that there remains something on the order of 50 ohms of ground resistance to be reduced for efficiency,  through addition of radials.  Question is, would I profit most by adding another 4 50-60 foot radials, or 2 radials each 100-120 feet?

Comments appreciated.


-- 

73, Pete N4ZR
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