Topband: Broad band antenna approach for 160 Contesting

[Grant Saviers]

The nice thing about switched serial caps (if same values) for tuning 
upwards from a low resonance is the voltages are all the same. Plus caps 
and appropriate relays are cheap, easy, and small.

Rick, I think you might have suggested this to me, and my implementation 
was published in QEX May/June 2019.

Grant KZ1W

On 2/28/2021 07:10, Richard (Rick) Karlquist wrote:
> 
> 
> On 2/27/2021 2:23 PM, Artek Manuals wrote:
>> Rick et all
>>
> he feed, The taps are relay selected .  Taps selected for a dip
>> at 1816, 1840 , 1860, 1880, 1900 and 1920. SWR 1.3:1 from 1.8 to 19.5 
>> which the my KPA1500 and Alpha 9500 both love.
>>
>> Dave
>> NR1DX
>> manuals at artekmanuals.com
>>
> 
> Thanks for posting this suggestion.  Perfectly reasonable design.
> I use an alternative design using switched mica capacitors.
> I also use a 2.25:1 matching transformer, but the "windings"
> are implemented using coax.  Not sure if Sevick does this.
> 
> 73
> Rick N6RK
> _________________
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