Specifications – Radio Shack PRO-90 User Manual
Page 62
62
SPECIFICATIONS
Frequency Coverage: ........ 29–54 MHz (in 5 kHz steps)
108–136.9875 MHz (in 12.5 kHz steps)
137–174 MHz (in 5 kHz steps)
406–512 MHz (in 12.5 kHz steps)
806.0000–823.9875 MHz (in 12.5 kHz steps)
849.0125–868.9875 MHz (in 12.5 kHz steps)
894.0125–956.0000 MHz (in 12.5 kHz steps)
Channels ................................................................. 300
Number of Banks ....................................................... 10
Sensitivity (AM/FM):
NFM: 20 dB S/N at 3 kHz deviation):
29–54 MHz ................................................... 0.5
µ
V
137–174 MHz ............................................... 0.4
µ
V
406–512 MHz ............................................... 0.4
µ
V
806–956 MHz ............................................... 0.6
µ
V
AM: 20 dB S/N at 60% modulation):
108–136.9875 MHz ...................................... 1.5
µ
V
Spurious Rejection (at 40.84 MHz) ...................... 50 dB
Selectivity:
10 kHz ........................................................... –6 dB
15 kHz ......................................................... –50 dB
IF Rejection (at 162.4 MHz) ................................. 80 dB
Operating Temperature .. –4
°
to 140
°
F (–20
°
to
60
°
C)
Scan Speed:
Normal ................................. 100 Channels/Second
Service ........................... 100 Frequencies/Second
Search Speed:
Normal ....................................... 100 Steps/Second
Hypersearch .............................. 300 Steps/Second
Priority Sampling .......................................... 2 Seconds
Delay Time ................................................... 2 Seconds
IF Frequencies ... 380.7 MHz, 10.85 MHz, and 450 kHz
Antenna Impedance ........................................ 50 Ohms
Audio Output .................... 180 mW nominal into 8 Ohm
Internal speaker
38 mW nominal into 32 Ohm Stereo Headphones
9 mW nominal into 64 Ohm Earphone
Built-in Speaker Size .......................... 1
1
/
2
-inch (36 mm)
20-520.fm Page 62 Wednesday, August 4, 1999 3:06 PM