---------- Forwarded message ---------- From: "DAVID CUTHBERT" <[email protected]> Date: May 4, 2012 9:43 AM Subject: Re: Topband: 'the old ways...' To: "Dan Edward Dba East edwards" <[email protected]>
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" < [email protected]> 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 > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
