3
2. Specification
2.1 TPD-8424
General
Frequency Range
Frequency Stability
Programmable Channels
Channel Spacing
Digital Vocoder
Dimensions
Weight
Power Source
Current Drain (maximum)
A : 410 ~ 450 MHz, B : 440~470MHz
±1ppm (-30 to +60
℃
)
16 Zones / 32 Channels
12.5KHz
AMBE++
99mm(H) x 51mm(W) x 21mm(D)
160g
DC +3.7V Li-ion 2,000mAH Battery
Receive mode, rated audio out – 320 (Audio Max)
Transmit mode – 1,800mA
Standby mode – 120mA
Receiver
Sensitivity
Squelch Sensitivity
Selectivity
Spurious and Harmonic Rejection
FM Hum and Noise
Audio Output Power
Audio Distortion
Audio Response
Input Impedance
0.25uV 12 dB SINAD
0.22uV 10dB SINAD
65dB (12.5KHz)
70dB
40dB (12.5KHz)
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
50 ohms
Transmitter
RF Power Output
Spurious and Harmonic
FM Hum and Noise
Audio Distortion
Audio Frequency Response
Output Impedance
3Watt
70dB
40dB (12.5KHz)
3% maximum with 1KHz modulation
+1, -3dB from 6dB per octave pre-emphasis Characteristic
from 300 ~ 3000Hz
50ohms
50 %
Duty Cycle
