FM540
Digital Mobiles

Features Specifications Brochure Back

GENERAL
Frequency Range 400 - 470MHz / 136 ~ 174MHz
Channels Capacity 256
Channel Spacing 12.5KHz (Analog), 6.25K (Digital)
Normal Operating Voltage 13.8V
Operating Temperature -30℃ ~ +60℃
Storage Temperature -40℃ ~ +85℃
ESD IEC 61000-4-2 (level 4)
Dimension (with battery and antenna) (mm) 150 x 131 x 43
Weight (g) 1310
RECIEVER
Frequency Stability ±1.5 ppm
Digital Sensitivity 0.22µV / -120dBm
Intermodulation 65dB
Adjacent Channel Selectivity -60dB @ 12.5KHz / -50dB @ 6.25KHz
Spurious Response Rejection -70dB @ 12.5/6.25K
Conducted Spurious Emission -57dBm@ < 1GHz, -47dBm @ > 1GHz
Blocking 84dB
Rated Audio Distortion 3% (Typical)
Hum and Noise -40dB @ 12.5kHz
Audio Response +3dB, -3dB
TRANSMITTER
Frequency Sensitivity ±1.5 ppm
Power Output 25W
Modulation Limiting 2.5KHz @12.5KHz
FM Hum and Noise -40dB @12.5KHz
Conducted/Radiated Emission -35dBm @ <1GHz, -30dBm @ >1GHz
Adjacent Transient Channel Power 60dB @ 12.5KHz,/6.25k
FM Modulation Mode 12.5KHz: 11KOF3E 25KHz: 10KOF3E
Digital Modulation 4FSK
Digital Modulation Accuracy 5% @ 25℃, 10% @ extreme temperature
Modulation Maximum Deviation 2.5KHz @ 12.5KHz
Audio Response +3dB, -3dB
Audio Distortion 3%
Digital Protocal ETSI TS 102 658