And don't forget to discharge the element to ground before connecting to your
measuring device. Static is NOT your friend in this case.
Lee K7TJR
-----Original Message-----
From: Topband <topband-bounces+k7tjr=msn.com@contesting.com> On Behalf Of Rob
Atkinson
Sent: Saturday, November 12, 2022 3:50 PM
To: topband@contesting.com
Subject: Re: Topband: How good is good enough
>Just cut 20 more 70' radials. Time to go play in the yard.
If that were all I could add, I'd switch them to 40 35' radials.
The R component of my inverted L on around 1840 is 11 ohms. X is around 20.
That's with 101 radials. I look for a R of at least 15 ohms where X is minimal
on an analyzer sweep. At that point the ground system is getting good. The
vertical part of the L should be
at least 50 feet. Just ground the analyzer and put the vertical
element right into it.
73
Rob
K5UJ
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
|