Advantech INTRAC-305 - Manual (Page 42)

OPERATION INTRAC-305
Page 30 INTRAC-305 MANUAL - Issue 3.2 ©2011 Advantech Wireless
FINE TUNE - Offsets
Resolver Sense:
Azimuth >true<
Elevation inv
Pol Angle inv
To change offsets:
Press the manual drive keys
(with FAST key if reqd) to
adjust the displayed angle
1
2
3
4
5
6
(not used)
(not used)
(not used)
(not used)
Toggles between ‘Select Pol Axis’ &
Select Az/El Axes’ moving the highlight
box to the labeled parameter
speeds up the effect of the currently
pressed manual Drive Key
Current Mode Tracking
Control State Local
Beac Freq 11.452000 GHz
Beac Level -10.05 dB
El Angle 25.37 o
Az Angle 210.50 o
Pol Angle 27.4 o
Select
Pol
Axis
Function
Press EN to EXIT Fine Tune
FAST
Path
See “FINE TUNE - Sense” on previous page.
Description This menu allows an offset to be inserted between the “angle”
from the resolver and the displayed angle in order to calibrate
the system for any difference between the actual antenna
angle and the resolver angle.
The actual pointing angles of the antenna are accurately
established and the displayed angles are set to those angles
using this facility.
Azimuth & Elevation or Polarisation are selected using menu
key 5.
The setting of the offset is done using the manual drive keys.
For Az & El the right and left keys offset the Az and the upper
and lower keys offset the El. For Pol the right and left keys
are used.
The angles displayed in the upper section of the menu screen
change in real time. Menu Key 6 may be used together with
the direction key to increase the rate of change.
The actual amount of offset is not displayed.
The offset can be returned to zero for any angle by pressing
the opposite keys at the same time.
Care should be taken to release both keys at the same time
otherwise another offset will be inserted.
Note This should only be carried out at commissioning or on the
installation of a new resolver or if the relationship between the
antenna and a resolver has changed.
Caution Inserting any offset will reset the orbit model.