Midland Radio 77-120ESP 사용자 설명서
Owner’s Manual 77-120 ESP
www.midlandradio.com
Page 12 of 13
TECHNICAL SPECIFICATIONS
GENERAL
Frequency range ..........................................................................26.965-27.405 MHz
Channels ..............................................................................................................40
Modulation type ...................................................................................................AM
Antenna impedance .......................................................................................50 Ohm
Loudspeaker ...................................................................................................8 Ohm
Microphone ..................................................................................................Electret
Power Supply ....................................................................13.8 VDC negative ground
RECEIVER
( CB, 26.965-27.405 MHz )
Sensitivity at 10db S/N......................................................................................0.6 uV
Selectivity .............................................................................................6 db @ 5 Khz
Squelch range ......................................................................................0.5 uV-500 uV
Audio output power ..................................................3.0 W @ 8 Ohm ( 10% distortion)
Distortion at 1000 mV ............................................................................................3%
Audio frequency response ........................................................................400-2400 Hz
Intermediate frequency .......................................................I ° 10.695 MHz II ° 455 Khz
Spurious response ................................................................ .............more than 45 db
TRANSMITTER
RF Output Power ................................................................................................4.0 W
Frequency Tolerance .........................................................................................0.005%
Harmonic Suppression ..........................................................................More than 60 db
Modulation ...........................................................................................AM 90% ( ± 5%)
SPECIFICATION - WEATHER RECEIVER
CHANNELS
00 163.275
05
162.450
01 162.550
06
162.500
02 162.400
07
162.525
03 162.475
08
161.650
04 162.425
09
161.775
Sensitivity _________________________________1.0 uV for 20 db
Audio Power _______________________________3.0 W
Audio Load ________________________________8 ohms
Intermediate Frequency ______________________455 Khz