Radio Shack PRO-668 - Backing Up Your Scanner; Reprogramming Your iScan

30 31
Specications
Receivingmodes ........................ ...................................................AM, FM,
............................................FM-MOT (Motorola), LTR (EF Johnson),
.................................................................... CTCSS, DCS, NAC on P25,
..................................EDACS wide/narrow (GE/Ericsson/HARRIS),
................................................ P25-Phase I, X2-TDMA, P25-Phase II
Receivingsystem .............................................................................................
....................................................Triple conversion PLL super heterodyne
WXfrequencies ...................... ...................162.400, 162.425, 162.450,
...................................................162.475, 162.500, 162.525, 162.550 MHz
Display .................................. Full dot matrix bitmap LCD (132X65 dots)
Sensitivity .............................................................................(FM 12 dB SINAD
............................................................ quieting unless otherwise noted)
VHF Low ......................................................................................... 0.2 μV
VHF Aircraft (20 dBq AM) ......................................................... 0.4 μV
VHF High 137–174 MHz............................................................. 0.3 μV
VHF High 216–300 MHz ........................................................... 0.4 μV
UHF Low 300–406MHz ............................................................ 0.8 μV
UHF/UHF-T 406–512 MHz ...................................................... 0.4 μV
UHF High 764–960 MHz ........................................................... 0.5 μV
1240–1300 MHz .......................................................................... . 0.5 μV
Squelchsensitivity (band center)
Threshold ......................................................................... AM/FM 0.5 μV
Tight ...................................................... (S+N)/N: AM 20 dB, FM 25 dB
Spurious rejection .......................... VHF High at 154.1 MHz: 40 dB
(Except Primary image)
Signal to noise ratio ................................................ 35–40 dB typical
(100 μV input signal)
Scanningrate(non-trunking) ....138–47.9 MHz:70ch/second (in 100
kHz Intervals)
Searchrate ..................................... 162.25 − 167.25 MHz: 80 steps/sec.
ScanandSearchdelaytime...................................................... 2 seconds
Audio max. power RF input :100 μV at 154.1 MHz
(DEV:3kHz at 1kHz)
8 ohms Resistor Load at speaker terminal
(BTL): 500 m Watts
Intermediatefrequency
1st ............................................................................................. 380.8 MHz
2nd ............................................................................................... 21.4 MHz
3rd ................................................................................................... 455 kHz
Currentdrain ............................ 8 Ohm internal speaker at 154.1 MHz,
5V Ext Power, Squelched: 170 mA
(Back light o/without charging)
Antennaimpedance ...................................................................... 50 Ohms
Temperaturerange(optimal) .............. 14°F to 140°F (–10°C to 60°C)
Speaker .................................. Built-in 36 mm 8 ohms dynamic speaker
Operatingvoltage.................DC 4.8 Volts (4 AA Ni-MH batteries)
....................................................DC 6 Volts (4 AA alkaline batteries)
Externalpowerandchargevoltage ..... USB Power (DC 5V 500mA)
Dimensions(HWD) ..............5.31 X 2.12 X 1.06 in. (135 X 67 X 28mm)
Weight .................................................................................... 7.4 oz. (210g)
Without antenna and batteries
Frequency Coverage
25.000–26.960 MHz ......................... (in 10 kHz steps/AM)
26.965–27.405 MHz .......................... (in 10 kHz steps/AM)
27.410–29.505 MHz .............................. (in 5 kHz steps/AM)
29.510–29.700 MHz .............................(in 5 kHz steps/FM)
29.710–49.830 MHz ...........................(in 10 kHz steps/FM)
49.835–54.000 MHz.............................(in 5 kHz steps/FM)
108.000–136.9916 MHz................(in 8.33 kHz steps/AM)
137.000–137.995 MHz ......................... (in 5 kHz steps/FM)
138.000–143.9875 MHz ................ (in 12.5 kHz steps/AM)
144.000 –147.995 MHz ......................... (in 5 kHz steps/FM)
148.000–150.7875 MHz ................ (in 12.5 kHz steps/FM)
150.800–150.845 MHz ........................ (in 5 kHz steps/FM)
150.8525–154.4975 MHz ................(in 7.5 kHz steps/FM)
154.515–154.640 MHz ........................(in 5 kHz steps/FM)
154.650–156.0450 MHz...................(in 7.5 kHz steps/FM)
156.0500 MHz ..................................................................... (FM)
156.0525–156.1725 MHz .................(in 7.5 kHz steps/FM)
156.1750 MHz ...................................................................... (FM)
156.1800–156.2475 MHz ................(in 7.5 kHz steps/FM)
156.2500–156.2550 MHz ................... (in 5 kHz steps/FM)
156.275–157.450 MHz .......................(in 25 kHz steps/FM)
157.470 –160.8225 MHz ...................(in 7.5 kHz steps/FM)
160.8250 MHz .....................................................................(FM)
160.830–161.5725 MHz ...................(in 7.5 kHz steps/FM)
161.600–161.975 MHz ......................... (in 5 kHz steps/FM)
162.000–174.000 MHz .................. (in 12.5 kHz steps/FM)
216.0025–219.9975 MHz ....................(in 5 kHz steps/FM)
220.000–224.995 MHz ........................(in 5 kHz steps/FM)
225.000–379.99375 MHz ............ (in 6.25 kHz steps/AM)
380.000–419.9875 MHz ...............(in 12.5 kHz steps/FM)
420.000–450.000 MHz ....................... (in 5 kHz steps/FM)
450.00625–512.000 MHz.............(in 6.25 kHz steps/FM)
764.000–781.996875 MHz ......... (in 3.125 kHz steps/FM)
791.000–796.996875 MHz .........(in 3.125 kHz steps/FM)
806.000–823.9875 MHz ...............(in 12.5 kHz steps/FM)
849.000–868.9875 MHz ...............(in 12.5 kHz steps/FM)
894.000–939.9875 MHz ...............(in 12.5 kHz steps/FM)
940.000–960.000 MHz ................. (in 6.25 kHz steps/FM)
1240.000–1300.000 MHz ............(in 6.25 kHz steps/FM)
137.000–174.000 MHz ....... (in 5 kHz steps/FM ) Canada
380.000–512.000 MHz .....(in 12 kHz steps/FM) Canada
*Excludes frequencies utilized by the Cellular Mobile
Radiotelephone Service: 824–848.9875 MHz and
869–893.9875 MHz
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