User Manual

ATP Tests68P09255A57-2
Aug 2002
SC4812ET Optimization/ATP Manual Software Release R16.1.x.x
PRELIMINARY
4-7
NOTE
TX output power is set to +40 dBm by setting BTS power level
to +33.5 dBm to compensate for 6.5 dB increase from pilot gain
set to 541.
The calibrated communications test set measures and returns the
attenuation level of all spurious and IM products in a 30 kHz resolution
bandwidth with respect to the mean power of the CDMA channel,
measured in a 1.23 MHz bandwidth, in dB, verifying that results meet
system tolerances at the following test points:
 1.9 GHz
- at least -45 dB @ + 885 kHz from center frequency
- at least -45 dB @ - 885 kHz from center frequency
 800 MHz:
- at least -55 dB @ + 750 kHz from center frequency
- at least -55 dB @ - 750 kHz from center frequency
- at least -60 dB @ + 1980 kHz from center frequency
- at least -60 dB @ - 1980 kHz from center frequency
The BBX2 then de-keys, and, if selected, the MCC is re-configured to
assign the applicable redundant BBX2 to the current TX antenna path
under test. The test is then repeated.
Figure 4-1: TX Mask Verification Spectrum Analyzer Display
- 900 kHz
+ 900 kHz
Center Frequency
Reference
Attenuation level of all
spurious and IM products
with respect to the mean
power of the CDMA channel
.5 MHz Span/Div
Ampl 10 dB/Div
Mean CDMA Bandwidth
Power Reference
+750 kHz
+ 1980 kHz
- 750 kHz
- 1980 kHz
FW00282
4