Total posts : 45366
Buying your own field strength meter will not help unless you spend at least several thousand dollars on one. The equipment used to do this kind of testing is extremely expensive.
I don’t know what my ERP is that is why I had a field strength test done. I figured it was the best thing I could do and I wanted to do things right .
Another way to get an aproximate idea of your output is ,…
Most modern car radios produced in the pst 12 years have a useful sensitivity of about .5 to .1 microvolt. So using the inverse square law, you can see that you can detect a signal with a 250 uVm at 3 M up to a distance of about 1 to 1 1/4 miles under good conditions before the signal dissapeares completely. At this distance the signal may not be very readable at all but will be detectable to some degree.