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Field Strength Meter - This is a wide band signal strength meter
circuit which responds to small changes in RF energy, designed to be used
for the VHF spectrum and will respond to AM or FM modulation or just a
plain carrier wave….. [Andy Collison's circuit]
Field Strength Meter for 2.4 Ghz Wireless LAN - What can you use
to test how effective your antennas are for 2.4 Ghz? Which antenna has the
best gain or, how do you know that there is any 2.4Ghz RF transmitted?
Here are the details on how to build a general purpose 2.4Ghz Radio
Frequency Field Strength Meter. This one was built using the
microwave rated diode from a MICROTEK solid state microwave leakage
detector.... Circuit designed by John Samnin
Field Strength Meter MkI - This Field Strength Meter has been specially
designed for our FM bugs. It is capable of detecting very low power transmitters and
will assist enormously in peaking many of our FM transmitters that have a coil in the
output stage that can be adjusted for optimum output.....(schematic added 08/08/08)
Field Strength Meter MkII - This Field Strength Meter has been specially
designed for our FM bugs. It is capable of detecting very low power transmitters and
will assist enormously in peaking many of our FM transmitters that have a coil in the
output stage that can be adjusted for optimum output.....(schematic added 08/08/08)
Field-strength meter - I saw this circuit in an old issue of "73 Radio
Electronics". I built it, but it didn't work well, so I changed a few components to
get better sensitivity…..(design idea circuit added 09/08)
FSM Field Strength Meter - This is a wide band signal strength meter circuit
which responds to small changes in RF energy, designed to be used for the VHF spectrum
and will respond to AM or FM modulation or just a plain carrier wave… [Andy Collison]
Simple Field Strength Meter - This Field Strength Meter is simple and also
quite sensitive. It uses an ordinary digital voltmeter to measure RF signal strength
up to a few hundred MHz…. [Designed by Andy Collison]
