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Re: Topband: Inverted L improvements - Part 3 (now with data)

To: topband@contesting.com
Subject: Re: Topband: Inverted L improvements - Part 3 (now with data)
From: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Mon, 21 Jan 2019 19:54:06 -0600
List-post: <mailto:topband@contesting.com>
Todd, get on the contest and rock and roll.  I don't know of anyone on 160m who has not given their antennas an iterative workout over time.  Bet you will do just fine.  RX is the tougher nut anyway.  Good luck

73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com

On 21-Jan-19 7:47 PM, Jamie WW3S wrote:
did you try transmitting with it, and see if any skimmers pick you up? just try sending test de urcall and check the RBN network, see how you are getting out....

-----Original Message----- From: Todd Goins
Sent: Monday, January 21, 2019 8:45 PM
To: topband@contesting.com
Subject: Re: Topband: Inverted L improvements - Part 3 (now with data)

Hello,

Per many people's recommendations I added 800ft of radials today. That is 8
x 100ft each.  It made a difference on the analyzer which I'll summarize
below. It was dark when I finished but here are a few data points. I think
it is better. The wide SWR curve still bothers me but the resistance is
coming up.

This is also using the new K9YC cookbook choke with 18 turns of RG400
around a 2.4" type 31 toroid.

The values are Freq, SWR, R, X, Z

1810  1.43  42.0  -14.5  44.5
1820  1.31  43.2  -10.7  44.5
1830  1.21  44.1  -6.7   44.7
1840  1.13  45.0  -2.5   45.1
1850  1.10  45.9  1.7   45.9
1860  1.14  47.0  5.7  47.3
1870  1.23  48.0  10.1  49.1
1880  1.34  49.1  14.7  51.2

Any thoughts?  The 160 CW contest is only 4 days away, I don't have a lot
more time to make changes but I could run a "few" more radials...

73,
Todd - NR7RR
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