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

[Joe]

How about even lay it down?

Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 1/23/2019 7:14 PM, Jeff Blaine wrote:
> Disconnect the other antenna.  Let it float.
>
> 73/jeff/ac0c
> alpha-charlie-zero-charlie
> www.ac0c.com
>
> On 23-Jan-19 6:02 PM, Todd Goins wrote:
>> Okay, after many requests, on and off list, I disconnected the 43' T 
>> 160m
>> antenna at its feed point and for good measure I disconnected the coax
>> feedline from the system too.
>>
>> It made a pretty substantial difference in the measurements. The 1.5 SWR
>> range is now only about 35 kHz wide but the 2.0 SWR range is still 
>> 100 kHz
>> which is probably still too wide.
>>
>> Freq  SWR  R    X     Z
>> 1800 1.9 31.8  -18.6 36.8
>> 1810 1.7 32.5  -14.1 35.4
>> 1820 1.6 33.3  -9.6  34.7
>> 1830 1.5 33.9  -5.3  34.3
>> 1840 1.45 34.6  -0.7  34.6
>> 1850 1.43 35.5  3.9  35.7
>> 1860 1.47 36.1  9.0  37.2
>> 1870 1.6 37.0  13.9  39.5
>> 1880 1.7 37.8  18.9  42.3
>> 1890 1.8 38.8  24.0  45.6
>> 1900 2 39.9  29.5  49.6
>> 1910 2.2 41.1  34.5  53.7
>> 1920 2.4 42.6  40.5  58.8
>> 1940 2.8 44.7  51.4  68.1
>> 1960 3.4 47.6  63.0  78.9
>>
>> I'll test it on the air tonight (using FT-8 and the RBN) with the 43'
>> antenna disconnected. Perhaps it will be better? The numbers look 
>> better,
>> right?
>>
>> Should I ground the 43' antenna instead of leaving it floating?
>>
>> Thanks guys.
>> 73,
>> Todd - NR7RR
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