Clock - Zte ZXC10 CBTS Technical Manual

ZXC10 CBTS (V1.0)Technical Manual
Working bands
Code
(inactive channel)
Total power
Waveform quality
Pilot time tolerance
Pilot channel and code-
division
tolerance
Pilot channel and code-
division phase tolerance
Pilot power
Output power of amplifier
Output
range
RF (Tx) front end VSWR

Clock

1. BTS Clock technical parameters
Frequency benchmark: The accuracy of frequency 10 MHz is better
than 10
status.
The temperature variation is required to be less than ±0.5 ×10
2. Clock Synchronization Source
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1.9 GHz and 2.1GHz
(RBW 1MHz)
> 4MHz offset:
< -36 dBm(RBW 1 kHz) @ 9KHz < f <150 kHz
< -36 dBm(RBW 10 kHz) @ 150KHz < f < 30
MHz
< -36 dBm(RBW 100 kHz) @ 30MHz < f < 1
GHz
4-16MHz offset:
< -30 dBm (RBW 30 kHz) @ 1 GHz < f < 12.5
GHz
16 M ~ 19.2 M offset:
< -30 dBm (RBW 300 kHz) @ 1 GHz < f <
12.5 GHz
domain power
32 dB less than the total output power
Rated power -4 dB ~ rated power + 2 dB
(refer to IS-97D for the definition and test of
total power)
ρ > 0.97
< 3 us; ±1 us between every two CDMA
channels of the same BTS; If the outer system
clock is interrupted, the time difference
between the BTS and CDMA should be kept no
more than ±10 us during 8 hours' time
< ±50 ns in the same CDMA channel
channel time
≤ 0.05 (in radian) in the same CDMA channel
Ratio of pilot power / total power ≤ ±0.5 dB of
the configured value
LPA: 40W; DPA: 40W /80W
linear dynamic
> 30 dB
< 1.50
-11
in GPS locked status and is better than 10
-10
in the holdover
-9
.