Radio Shack PRO-70 - Manual (Page 52)

52
SPECIFICATIONS
Frequency Coverage:
Ham ............................... 29–30 MHz (5.0 kHz steps)
VHF Lo .......................... 30–50 MHz (5.0 kHz steps)
Ham ............................... 50–54 MHz (5.0 kHz steps)
Government ............... 137–144 MHz (5.0 kHz steps)
Ham ........................... 144–148 MHz (5.0 kHz steps)
VHF Hi ....................... 148–174 MHz (5.0 kHz steps)
Ham/Government .... 380–450 MHz (12.5 kHz steps)
UHF Lo .................... 450–470 MHz (12.5 kHz steps)
UHF Hi (T) ............... 470–512 MHz (12.5 kHz steps)
Channels of Operation: ................................ 50 Channels
and 1 Monitor Memory
Sensitivity (20 dB S/N):
29–54 MHz ......................................................1.0
µ
V
137–174 MHz ..................................................1.0
µ
V
380–512 MHz ..................................................1.0
µ
V
Selectivity:
±
10 kHz ........................................................... –6 dB
±
18 kHz ......................................................... –50 dB
Spurious Rejection:
29–54 MHz .................................... 50 dB at 40 MHz
137–174 MHz .............................. 50 dB at 154 MHz
Scanning Rate ........................Up to 25 channels/second
Search Rate ................................. Up to 50 steps/second
Delay Time ...................................................... 2 seconds
Intermediate Frequencies (IF):
1st.............................................................. 10.7 MHz
2nd............................................................... 455 kHz
IF Rejection: 10.7 MHz ....................... 70 dB at 154 MHz
Squelch Sensitivity:
Threshold....................................... Less than 1.0
µ
V
Tight................................................... (S+N)/N 25 dB
Antenna Impedance........................................... 50 Ohms
20-310.fm Page 52 Wednesday, August 4, 1999 10:49 AM