User Manual

Optimizing Companion Frame – continued
SC4812ET BTS Optimization/ATP — CDMA LMF
Jan 2002
K-2
Optimizing the RX section of
the Companion Frame –
RX (Main) Optimization/ATP
To test the RX Main antenna system follow the instructions in Table K-2
and refer to illustration Figure K-1(3–sector configuration).
Table K-2: Optimizing the RX (Main) section of the Companion Frame
Step Action
1 Connect the RX test cables to the antenna ports 1A–3A (for 3–sector optimization) or
antenna ports 1A–6A (for 6–sector optimization).
2 Login the LMF and select MPC (see Figure K-2 for display screen and field location).
3 Run the RX tests.
RX (Diversity) Optimization/ATP (Single Frame)
To test the RX Diversity antenna system follow the instructions in
Table K-3.
Table K-3: Optimizing the RX (Diversity) on a Single Frame
Step Action
1 Connect the RX test cables to the expansion ports on the I/O plates labeled 1B–3B (for
3–sector optimization) or expansion ports 1B–6B (for 6–sector optimization).
2 Login the LMF under EMPC (see Figure K-2 for display screen and field location).
3 Run the RX tests.
RX (Diversity) Optimization/ATP (Two Frame)
To test the RX Diversity antenna configuration on a two frame
Companion BTS system follow the instructions in Table K-4.
Table K-4: Optimizing the RX (Diversity) on a Two Frame Companion Site
Step Action
1 Connect RX expansion cables from the expansion ports on the other Companion frame
labeled 1A–3A (for 3–sector optimization) or expansion ports 1A–6A (for 6–sector
optimization) to the 1B–3B (for 3–sector optimization) or expansion ports 1B–6B (for
6–sector optimization) see Figure K-1 for an illustration of the configuration.
NOTE
Connect the cables from the 2nd frame A ports to the B ports of the 1st frame.
2 Login using the LMF select MPC (see Figure K-2 for field location on LMF display screen)
NOTE
– Although the test will be done to one frame, the RX cable will be connected to the
other frame’s corresponding antenna ports.
– The other frame has to be powered up and include all the RX Path Components.
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