User's Manual

31
7.2 TM-8402 / TM-8404
General
Frequency Range
Frequency Stability
Programmable Channels
Channel Spacing
Dimensions
Weight
Power Source
Current Drain (maximum)
TM-8402A / TM-8404A : 400 ~ 475 MHz
TM-8402B / TM-8404B : 450 ~ 520 MHz
±1.5PPM (-30 to +60℃)
256 Channels/32 Group
Dual Channel Spacing 12.5/25 KHz
103mm (H)×52mm (W)×32mm (D)
1.,1 Kg
DC +13.6 ±15%
Receive mode, rated audio out – 1A(Audio Max)
Transmit mode – 11A
Standby mode - 300mA
Receiver
Sensitivity
Squelch Sensitivity
Selectivity
Spurious and Harmonic Rejection
FM Hum and Noise
Audio Output Power
Audio Distortion
Audio Response
IF Frequencies
Input Impedance
0.25uV 12 dB SINAD
0.22uV 10dB SINAD
70dB (12.5KHz), 70dB (25KHz)
75dB
40dB (12.5KHz), 45dB (25KHz)
1 Watt across an 16-ohm load
Less than 3% at rated output
+1, -3 dB from 6dB per octave de-emphasis Characteristic
from 300 ~ 3000Hz
45.3MHz and 455KHz
50 ohms
Transmitter
RF Power Output
Spurious and Harmonic
FM Hum and Noise
Audio Distortion
Audio Frequency Response
Output Impedance
40/25/10/5Watt
70dB
40dB (12.5KHz), 45dB (25KHz)
3% maximum with 1KHz modulation
+1, -3dB from 6dB per octave pre-emphasis Characteristic
from 300 ~ 3000Hz
50 ohms