Kirisun DP485 User Manual

DP485 Service Manual
31
Appendix 1 Abbreviations
AMP Amplify, amplifier
ANT Antenna
APC Automatic power control
BPF Band-pass filter
CTCSS Continuous tone control squelch system
DCS Digital code squelch
DEMOD Demodulation
E2PROM Electrically Erasable Programmable Read-Only Memory
HPF High-pass filter
IDC Instantaneous deviation control
IF Intermediate frequency
LED Light-emitting diode
LNA Low-noise amplifier
LPF Low-pass filter
MCU Micro control unit
MIC Microphone
MOD Modulation
MONI Monitor
PLL Phase lock loop
PTT Push-to-talk
RX Receiver
SPK Speaker
TCXO Temperature controlled crystal oscillator
TX Transmitter

Kirisun DP485 Specifications

General

Frequency	136~174 MHz, 400~470 MHz
Channel Capacity	256 channels
Channel Spacing	25 kHz/12.5kHz
Antenna Impedance	50Ω
Operating Voltage	7.4V
Rated Power	1W 16Ω
Transmitting Power	4W/1W@7.4V DC
Current Consumption	≤1.5A@ 7.4V DC
Working Temperature	-25℃~ +55℃
Microphone Impedance	2.2kΩ
Battery	Lithium-ion battery DC 7.4V , 2000mAh
Receiving Sensitivity (12dB SINAD )	-120dBm
Squelch Sensitivity (3-level)	≤-120dBm
Selectivity of Adjacent Channels	70dB@25KHz /60dB@12.5KHz
Intermodulation Immunity	65dB@25KHz/12.5 KHz
Blocking	84dB
Frequency Stability	≤±2.5ppm
Maximum Modulation Offset	±5kHz@25KHz /±2.5kHz@12.5KHz
Modulation Distortion	≤3%
Spurious Emission	≤-36dBm