Topband: Titanex Vertical SWR problem

[Ragnar Otterstad]

>>I've just installed a Titanex V160S vertical (87') with a V160AS (160m
>>only) tuning unit. Yesterday I connected 12 radials (130') each, adjusted
>>the taps on the tuning unit coil with an MFJ SWR analyzer, and got the
>>resonant point down to about 1850 khz. with tolerable SWR (less than
>>1.5:1) at 1805 khz. So, here's the problem: today I added another 16
>>radials, and the resonant point moved up to 1900 khz. The SWR is now high
>>enough at 1825 khz that the amp shuts down. I tried adjusting the taps on
>>the coil in the tuning unit, but to no avail.
>
>
>>Anyone have any suggestions as to how to get the resonant point to a lower
>>point in the band? Thanks.
>
>
>>73, Jim   W1YY/7


As the MFJ unit seems to be affected by signals other than yours, perhaps
they way I did it will work better for you.

I took a TS-50 with me out to the feedpoint and with 10 W and a SWR bridge
in series I tuned it at 1830 kHz centre frequency without any problems.
Later I have added radials, which seem to have no effect on the SWR.

73

" RAG "  Ragnar Otterstad   LA5HE JW5HE OZ8RO

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