User Manual

AS4000 Operations and Maintenance
Section
605-0000-431
6
. Issue 1.6. Date3/2/99
DLP-015
Page 19 of 60 © Copyright Airspan Communications Corporation 1999
5. Enter the sum of the component losses for the system.
The losses for the cable are recorded on a cable attenuation record attached to
the top of the cable. Cable A is supporting modem shelves one and two. Cable
B is supporting modem shelves three and four.
454-0010-019 Issue x
CABLE ATTENUATION
MHz dB
1865 - x.xx
1880 - x.xx
1895 - x.xx
2049 - x.xx
2067 - x.xx
2088 - x.xx
2330 - x.xx
2346 - x.xx
2362 - x.xx
3431 - x.xx
3452 - x.xx
3477 - x.xx
A
The coupler loss is recorded on the coupler using a similar label and the internal
loss for the LCU is recorded on a Label on the LCU.
The path loss entered using the hand held terminal is the loss occurring in the
transmitted signal from the LCU before reaching the CT LNA. Therefore path
loss for signals to all shelves is the same.
The path loss for both modem shelves 1&2 and 3&4 = Loss coupler (LNA) +
loss Cable + internal loss of LCU.
5. Key F6 to return to the previous menu
6. Select Mode Select.
Shelf : 1 0E-
>Mode Select< 1-R
Path Loss Set 0--
CT RX Trim ---
7. Set to Continuous
Mode SH:1 0E-
1-T
Mode:Continuous 0--
0--