Transmitter
|
Frequency Range
|
400-470MHz
|
136-174MHz
|
Channel Spacing
|
12.5kHz/25kHz
|
Frequency stability (-30°C、+60°C、+25°C)
|
+ / - 1.5 ppm (XiR M8260)
+ / - 0.5 ppm (XiR M8268)
|
RF output
|
25-40W
|
25-50W
|
Modulation limit
|
+ / -2.5dB@12.5kHz ; + / -5.0dB@25kHz
|
FM hum& noise
|
-40dB@12.5kHz / -45dB@25kHz
|
Conducted/radiated emission
|
-36dBm<1GHz / -30dBm>1GHz
|
Adjacent channel selectivity
|
-60dB@12.5kHz / -70dB@25kHz
|
Audio Response
|
+1、-3dB
|
Audio Distortion
|
3%
|
FM modulation
|
12.5kHz :11KOF3E /
25kHz :16KOF3E
|
4FSK digital modulation
|
12.5kHz data: 7K60F1D
12.5kHz data & audio: 7K60FXD
|
Digital vocoder
|
AMBE+2TM
|
Digital protocol
|
ETSI-TS102 361-1、-2、-3
|