Potomac Instruments FIM-21 - Page 8

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SECTION l . GENERAL DESCRIPTION (Cont.)
Table 1 -1. S pe ci f ications: Typ e FIM - 21 Field Strength Meter (Cont. )
Audio
Outputs :
Recorder
Output:
Lights:
Batteries (6 re q uir e d):
Battery Life:
Environmental:
Dimensi ons:
Weight:
External RF In p ut:
RF Input Switch:
METER Switch:
Logarithmic Dynamic Range:
1- 2
Front panel loudspeaker, weather
treated cone
Headphone j
ack, high and low Z
(disconnects speaker)
0.4 to 4 v olts DC proportional to
field i ntensity for each attenuator
range, 2000 ohm source resistance
Frequency dial and m et e r; panel
switch for night use
Standard l½ volt C-~ unrr cells or
l½ volt .Alkaline cells for extended
life at very low temperat ur es
Greater than 1000 FI readings (re -
duced
life with frequent use of l ights
and/or high speaker volume)
Continuous e:xposure -
10° F to +130° F;
lower temperature ope ration practical
for
11
reading time
11
expos ur es
8-3/4
11
high, 11-1/2
11
wide, 5- 1/8
11
deep
with cover closed; 3-7/8
11
deep with
cover open (gr i pping width)
Approximately ll-1/2 pounds
535 KHz to 1605 KHz, lO microvolts to
10 vol ts
Selects loop antenna ( ANT) or Panel
Connector (EXT)
Selects normal linear ( LJN) or l oga-
rithmic (LOG) operation
60 db compressed input range for FI
meter and recorder output