Topband: 'the old ways...'

DAVID CUTHBERT telegrapher9 at gmail.com
Fri May 4 09:01:18 PDT 2012


On May 4, 2012 9:43 AM, "DAVID CUTHBERT" <telegrapher9 at gmail.com> wrote:

> Dan that is how I do it and have measured the base referred ground loss
> resistance of my 30' vertical to be around 5 ohms.
>
> Dave WX7G
> On May 4, 2012 9:22 AM, "Dan Edward Dba East edwards" <
> dan.n.edwards at sbcglobal.net> wrote:
>
>> whatever happened to the 'old way' of measuring ground loss?
>>
>> back in the 80's we would look up the predicted impedance from LaPort,
>> then measure it as accurately as possible with a General Radio 1606..and
>> figure the difference is 'ground loss'...
>>
>> today, with better software ( EZNEC5 ), we can model our antennas
>> over 'perfect ground', and with better hardware ( i like my VNWA2 ),
>> measure with some confidence of reasonable accuracy. and again, figure the
>> difference is 'ground loss'...
>>
>> this at least gives you a clue what is happening, beyond 'just put out as
>> many radials as you can, as long as you can make them'....in my case, with
>> scant available real estate for radials, i come up with about 6 ohms of
>> ground loss...
>>
>> respectfully submitted...tell me why this is 'wrong'....73 w5xz, dan
>> _______________________________________________
>> UR RST IS ... ... ..9 QSB QSB - hw? BK
>>
>


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