Andrew Wireless Innovations Group RPT-MR801 Manual De Usuario
M0050A0B.doc
Id.-No. 148222
Page 5 of 12
11-Mar-99
2 Integrating a conversion module and programming
communication bus address
2.1 What you have to know of your system before the setting
Prerequisite for the adjustment is to know the bandwidth of the filters used in the module.
(Can be gained using the VER command.) With this bandwidth and the desired values the
start frequency and stop frequency (and thus the bandwidth and centre frequency) of the band
can be set. The following formula shows how to calculate the values that have to be entered.
(Can be gained using the VER command.) With this bandwidth and the desired values the
start frequency and stop frequency (and thus the bandwidth and centre frequency) of the band
can be set. The following formula shows how to calculate the values that have to be entered.
2
1
filter
Start
BW
f
CF
+
=
2
2
filter
Stop
BW
f
CF
−
=
;
where
CF1 is the centre frequency of the first filter (to be entered)
CF2 is the centre frequency of the second filter (to be entered)
f
CF1 is the centre frequency of the first filter (to be entered)
CF2 is the centre frequency of the second filter (to be entered)
f
Stop
is the stop frequency of the desired band (upper frequency)
f
Start
is the start frequency of the desired band (lower frequency)
BW
filter
is the bandwidth of the two filters of the module (can be gained with VER command)
BW
BW/2
f
Start
CF1
f
Stop
CF2