M/A-Com P5100 Series, Installation Manual

Page: 45 / 100

MM102225V1, Rev. B
44
STEPS ACTION MISCELLANEOUS
3.
To place the DCX in Analog Mode,
enter the sequence of commands
indicated by bold script in the example
seen to the right.
Offline [CR]
;<Various status messages>
at@outmode0
[CR]
OK
save_config [CR]
OK
Reboot [CR]
; < The Base Station Reboots>
4.
Repeat Steps 1 and 2 for all other
DCX units.
5.
Ensure that the DCX and HPA under
test are powered up and the HPA is
offline.
6.
On the HP 8920, select the RF GEN
screen and set the following
configuration, (see adjacent photo):
RF Gen Freq: Set for the receive
frequency of the RF path under test
(45MHz below the Transmit
Frequency) .
Amplitude: -80 dBm
Output Port: RF Out
AFGen1 Freq: 1kHz
AFGen1 To: FM 3kHz
AFGen2 To: Off
AC Level: Set to dBm plus 10
sample averaging
SINAD dB: Set for an averaging
value of 10 samples
7.
Select the AFANL screen and set the
following configuration:
AF Anl In: Audio In
Filter 1: 300Hz HPF
Filter 2: 3kHz LPF
De-Emphasis: 750 µsec
Detector: rms