FCC Field Strength Measurements
 

In article ,
Jim wrote:

Anyone know how the FCC makes their field strength measurements in the
HF region? I seem to remember them using a 1 meter long dipole that
gave readout in microvolts, and they would measure at a certain
distance in meters from the antenna. I think the unit was calibrated
and sealed so that the measurements could be used in court. They
would make measurements at a certain distance, and then go into the
violators home and have him tune up at 1 kw input, then read the
strength again.

I wonder what they use today?

Can anyone point to an article on how to make an accurate field
strength meter that would give a readout in microvolts/meter. I did a
search but haven't found anything yet.

Jim


Usually a Selective RF Field Strength Meter which was Cal'd to NIST,
or other Federal Standards, with a HP Spectrum Analyser watching
for significant changes in phase and power levels, during, and after,
original measurments. Usually all it took was,"a knock on the door"
and a Station Inspection to get the "Parties Attention", then if
there was a problem, after that, the FCC Field Agent would return
with a US Marshal in tow, and if that didn't work, it was off to the
IronBar Hotel, for the guy. If it was a vessel, then a USCG Chief PO
or Officer would replace the US Marshal, if he was busy elsewhere.
Nothing like a little Federal Mucsle to Get a bit of attention,
when required.

Me been there, done that.....