3
Unit Nominal Limit
Signal Stalker II sensitivity at 450 MHz dBm -60 -50
Sensitivity
FM: (S+N)/N=20 dB 25-54 MHz μV 0.3 1
Dev.: 3 kHz at 1 kHz 108-136.99166 MHz μV 0.3 1
137-174 MHz μV 0.5 2
216.0025-224.995 MHz μV 0.5 2
225-299.99375 MHz μV 0.5 2
300-405.9875 MHz μV 0.8 3
406-512 MHz μV 0.5 2
764-960 MHz μV 0.7 3
1240-1300 MHz μV 0.7 4
AM: (S+N)/N=20 dB 25-54 MHz μV13
Mod.: 60% at 1 kHz 108-136.99166 MHz μV13
137-174 MHz μV 1.5 5
216.0025-224.995 MHz μV 1.5 5
225-299.99375 MHz μV26
300-405.9875 MHz μV310
406-512 MHz μV26
764-960 MHz μV26
1240-1300 MHz μV312
Selectivity AM 25-27.995 MHz -6 dB kHz ±4 >±2.5
-50 dB kHz ±6 <±12
Other frequency -6 dB kHz ±7 >±4.5
-50 dB kHz ±13 <±18
Spurious rejection (Except Primary image) at 154.1 MHz dB 40 30
Acceptable radio frequency displacement (EIA RS-204D) kHz ±6 ±3
Residual noise Volume control, set to its minimum, squelched mV 2 5
Scanning rate without trunking channels/sec. 55 45-66
Search rate at 162.25-167.25 MHz steps/sec. 90 80-100
Scan delay time Default setting sec. 2 1-3
Audio output power 10% THD W 1.5 1.0
Working memory 1,800 programmed object using flexible scannable object system
Display Liquid crystal display (16-charactor x 4-line, plus icon)
Receiving system Triple conversion PLL super-heterodyne,
1st IF: 380.8 MHz/2nd IF: 21.4 MHz/3rd IF: 455 kHz
Power source 13.8V DC negative ground only
Jacks Antenna, earphone, PC/IF, external speaker, and power
Dimensions (HWD) 2 1/4 x 7 1/4 x 5 5168 inches (55 x 185 x 135 mm)
Weight apporox. 42.3 oz. (1200 g) without antenna and batteries
Note: Nominal specs represent the design specs. All units should be able to approximate these specifications.
Some units will exceed while some may drop below these specs. Limit specs represent the absolute worst condition
still considered acceptable. A unit should NEVER fail to meet limit specs.
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