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

[Jeff Blaine]

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 at 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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