Radio Shack PRO-2018 ユーザーズマニュアル

Specif

icat

ions

52'%+(+%#6+105

Frequency Coverage (MHz):

10 Meter Amateur Radio............................... 29-30 (in 5 kHz steps)

VHF Lo.......................................................... 30-50 (in 5 kHz steps)

6 Meter Amateur Radio ................................ 50-54 (in 5 kHz steps)

Aircraft ...................................... 108–136.9875 (in 12.5 kHz steps)

Government .............................................. 137–144 (in 5 kHz steps)

2 Meter Amateur Radio.............................. 144-148 (in 5 kHz steps)

VHF Hi ....................................................... 148-174 (in 5 kHz steps)

Amateur Radio/Government ................ 380-450 (in 12.5 kHz steps)

UHF Standard ...................................... 450-470 (in 12.5 kHz steps)

UHF “T” ................................................ 470-512 (in 12.5 kHz steps)

Channels of Operation ................................................ 200 channels

Sensitivity (20 dB S/N):

29-54 MHz ............................................................................. 0.5 µV

108-136.9875 MHz ................................................................ 1.0 µV

137-174 MHz ......................................................................... 0.5 µV

380-512 MHz ......................................................................... 0.7 µV

Spurious Rejection (FM @154 MHz) ..................................... 50 dB

Selectivity:

±10 kHz................................................................................... –6 dB

±18 kHz................................................................................. –50 dB

Search Speed .................................................... Up to 50 Steps/Sec

Scan Speed ................................................. Up to 25 Channels/Sec

Delay Time....................................................................... 2 Seconds

IF Frequencies:

1st IF..................................................................................10.7 MHz

2nd IF................................................................................... 455 kHz

IF Interference Ratio (10.7 MHz) ....................... 70 dB at 154 MHz

Squelch Sensitivity:

Threshold .............................................................. Less than 0.5 µV

Tight (FM) ............................................................... (S + N)/N 25 dB

Tight (AM) ............................................................... (S + N)/N 20 dB

Antenna Impedance.......................................................... 50 Ohms

Audio Output Power (10% THD) ............................... 0.8W Nominal

Built-In Speaker ......................................3 Inches (77 mm), 8 Ohms

20-424.fm Page 33 Monday, September 9, 2002 9:44 AM