7309 Grove Road Unit D
Frederick, Maryland 21704
Potomac Instruments supplies audio test and RF monitoring gear.
Since its founding in 1968 it has become best known for the Field Intensity meters (FIM-21, FIM-41,and FIM-71) and the audio test sets (AG-51 and AA-51).
|FIM-21 Field Intensity Meter
.54 MHz to 1.61 MHz
|FIM-41 Field Intensity Meter
.54 MHz to 5.0 MHz
|FIM-4100 Field Intensity Meter
.52 MHz to 5.1 MHz
|FIM-71 Field Intensity Meter
VHF 45-225 MHz
|FIM-72 Field Intensity Meter
UHF 450-960 MHz
|SD-31 Frequency Generator
|AG-51 Audio Generator|
|AA-51 Audio Analyzer|
|TU-16 Remote Metering|
|AM-19 Antenna Monitor|
|AM-19D Antenna Monitor|
|1900 Antenna Monitor|
Audio Program Analyzer
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