Radio Shack PRO-106, Руководство по обслуживанию

Страница: 3 / 73

3
Unit Nominal Limit
Spectrum sweeper sensitivity at 450 MHz dBm -60 -50
Sensitivity
FM: (S+N)/N=20 dB
25-54 MHz μ V 0.3 1
Dev.: 3 kHz at 1 kHz 108-136.99166 MHz μ V 0.3 1
137-174 MHz μ V 0.5 2
216.0025-224.995 MHz μ V 0.5 2
225-299.99375 MHz μ V 0.5 2
300-405.9875 MHz μ V 0.8 3
406-512 MHz μ V 0.5 2
764-960 MHz μ V 0.7 3
1240-1300 MHz μ V 0.7 4
AM: (S+N)/N=20 dB 25-54 MHz μ V 1 3
Mod.: 60% at 1 kHz 108-136.99166 MHz μ V 1 3
137-174 MHz μ V 1.5 5
216.0025-224.995 MHz μ V 1.5 5
225-299.99375 MHz μ V 2 6
300-405.9875 MHz μ V 3 10
406-512 MHz μ V 2 6
764-960 MHz μ V 2 6
1240-1300 MHz μ V 3 12
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 1 3
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 sec. 2 1-3
Audio output power 10% THD mW 170 140
Current drain (using AC or DC adapter) Squelched mA 140 170
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 6V DC negative ground only
4AA batteries or a suitable adapter
Jacks Antenna, earphone, PC/IF, and external power
Dimensions (HWD) 5 3/4 x 2 9/16 x 1 5/8 inches (145 x 65 x 42 mm)
Weight apporox. 8.5 oz. (240 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.