ZXSDR BS8800 Technical Manual
Item
Index
Transmitter
Output Frequency
Tolerance
<= 5×10
-8
Channel Bandwidth
1.25 MHz
Modulation Mode
Quadrature
Limitations
on Conducted
Spurious and
Radiated Spurious
Emmisons
> 4 MHz OFFSET:
< -36 dBm(RBW 1 kHz) @
9KHz f
150 kHz
< -36 dBm(RBW 10 kHz) @
150KHzf30 MHz
< -36 dBm(RBW 100 kHz) @
30MHzf1 GHz
4 ~16MHz OFFSET:
< -30 dBm(RBW 30 kHz) @ 1 GHz
f12.5 GHz
16 MHz ~ 19.2 MHz OFFSET:
< -30 dBm(RBW 300 kHz) @ 1
GHz f 12.5 GHz
Code
Domain
Power
The code domain power of inac-
tive channel should be less than
the total output power by 27 dB.
(Note: The Posts and Communica-
tions Technical Specifications YDN
091.2-1998 prescribes the differ-
ence as 32 dB while IS-97 27 dB.)
Total Power
The
total
transmitted
power
should lies in the manufacturer
rated power range from +2 dB to
-4 dB. (See IS-97D for the defini-
tion and test of total power.)
Waveform Quality
Cross
correlation
coefficient
ρ>0.97
Pilot Time
Tolerance
It should be less than 3us
and must not be more than
10us. All the
CDMA channels
under the same BTS should
keep
±1us
to one another.
Make sure that the timing error of
BTS
and the CDMA system clock
is not more than
±10 us within 8h in case of
the
external
system
clock
Pilot Channel to
Code Channel Time
Tolerance
< ±50 ns in one CDMA channel
Pilot
Channel to
Code Channel
Phase Tolerance
< 0.05 radian in one CDMA chan-
nel
Pilot Power
The ratio of pilot power to
total power should be in the
range of configured
value ±0.5
dB.
Output Power
Up to 80 W
38
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