User Manual

TX Spectral Purity Transmit Mask Acceptance Test – continued
PRELIMINARY 2
SC 4812ET BTS Optimization/ATP – CDMA LMF
July 1999
4-12
Prerequisites
Before attempting to run any ATP tests, ensure the following have been
completed:
 CSMs, GLI2s, BBX2s, and MCCs have correct code load and data
load.
 Primary CSM, GLI2, and MCCs are INS.
 BTS has been optimizes/calibrated per Chapters 2 and 3.
 BBX2s are OOS–RAM.
 Test equipment is connected for ATP tests (see Figure 3-16 through
Figure 3-19).
 Test equipment is warmed up 60 minutes and calibrated.
 Test cables are calibrated.
 GPIB is on.
 LMF is logged into the BTS.
TX Mask Test Procedure
Follow the steps in Table 4-5 to verify the transmit spectral mask
specification on all TX antenna paths using all BBX2s equipped at the BTS.
Table 4-5: TX Mask ATP
 Step Action
1 Select the BBX2(s) to be tested.
2 From the Tests menu, select TX Mask.
3 Select the appropriate carrier(s) (carrier – bts# –sector# –carrier#) displayed in the
Channels/Carrier pick list (use the Shift or Ctrl keyboard key to select multiple items).
4 Type the appropriate channel number in the Carrier n Channels box and click OK.
5 Follow the cable connection directions as they are displayed.
6 Click on OK to close the status report window.
NOTE
The communications test set will measure and return 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.
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