Alcatel MDR-8000 User Manual page 216

Microwave digital radios
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Determine PA nominal high
c
and low output level:
PA nominal high output level =
level at top of stack + insertion
loss of diplexer filter/XMT filter
(marked on label on filter).
XMTR nominal low output level
= XMTR nominal high output
level -10 dB.
e
Set your Tx Level to 10 dB below nominal
HIGH power using the (XMT LVL ADJ)
potentiometer on your TRANSMITTER
module. After this is done, click Next.
Abort
g
Set your Tx Level to nominal HIGH power
using the (XMT LVL ADJ) potentiometer on
your TRANSMITTER module. After this is done,
click NEXT.
Abort
5-68
ELMC Address:
Description:
d
f
Next
h
Back
Next
i
Proceed to
Sheet 3
Figure 5 - 28 PA Output Level Calibration (Sheet 2 of 5)
TRANSMIT POWER CALIBRATION
RACK6
Communicating*
MDR-8000
CLICK CALIBRATE A OR B SIDE
Calibrate A Side
Carrier Null A
XMT LVL
ADJ
PWR MON
FREQ CONT
XMT PWR
ALM
ON LINE
I CARR NULL
Q CARR NULL
TRANSMITTER
Example:
Expected output level at top of stack = 29 dBm.
Label on diplexer filter/XMT filter shows insertion loss is 2 dB.
Nominal high power out of PA = 31 dBm
(29 dBm + 2 dBm = 31 dBm).
Set nominal low power level for 21 dBm
(10 dB down from 31 dBm).
12:17:01 PM
10-May-99
Calibrate B-side
Carrier Null B
MDR-1068
10/04/04

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