Following on from the antenna modelling I did a with EZNEC a few
months back I am now building the antenna and planning the ground
system. I want to do some measurements of the antenna (approx 48ft
vertical) with different ground system components. I can measure the
differences in feed impedance easily enough (I use Larry N8LP's
LP-100 vector RF wattmeter). In addition I want to measure the field
strength with the different ground system components as well. (also
using the LP-100). My question is how far away from the antenna
should I measure the field strength? I am primarily interested in
160/80/40m Two options spring to mind...
1) A friend just over 1 mile away
2) I could set up in the back of my car about 400yrds away.
Any thoughts or advice would be appreciated.
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