http://cxema.ru
18
Voice digitizing
13kbps RPE-LTP
19
Transmission speed
270.3 kbps
20
Diversity
Frequency hopping
21
Signal Reception
Double superheterodyne
22
Intermediate Frequency
1st:
1136 - 1161 MHz
2nd:
Tx 246 MHz, Rx 201 MHz
6.2.2 Tx Characteristics
1.
Frequency error:
±0.1ppm max., relative to base station frequency.
2.
Modulation phase error:
RMS:
≤
5°
Peak:
≤
20°
3.
Output RF Spectrum due to Modulation:
Offset from Centre Frequency (kHz)
Maximum Level Relative to the Carrier (dB)
±100
±200
±250
±400 to 1800
+0.5
-30
-33
-54 (Integral antenna)
4.
Output RF Spectrum due to Switching Transients:
Offset from Centre Frequency (kHz)
Maximum Level (dBm)
±400
±600
±1200
±1800
-23
-26
-32
-36
Measurement conditions for output RF spectrum measurements:
Frequency Span:
0Hz
Measurement Bandwidth:
30kHz
Video Bandwidth:
100kHz
Peak Hold
Issue 1
Section 6
MCUK980101C8
Revision 0
6 - 2
Service Manual
TECHNICAL SPECIFICATIONS