Research Concepts RC2000A - Manual (Page 38)

38 RC2000A Dual Axis Antenna Controller Chapter 4 Modes
RE-SYNC ACCOMPLISHED
and will return to MANUAL mode.
6. With an assistant out at the antenna, validate the accuracy of the limits by moving the antenna to all
four limit positions (azimuth counter-clockwise, azimuth clockwise, down, and up).
4.8 AZIM SLOW Mode
This mode allows the user to interactively adjust the azimuth slow speed code. When this mode is
activated, the user is presented with the following screen:
ADJUST AZIMUTH SLOW SPEED AZIM SLOW
HIT ANY KEY TO CONTINUE - HINT, TRY 155
When any key is depressed, the user is presented with the following screen:
AZ: 700 SPEED:175 AZIM SLOW
USE SCROLL UP/DOWN, <>, ENTER TO SET
At this point, the SCROLL UP and SCROLL DOWN keys can be used to increment or decrement the
speed code, the LEFT and RIGHT ARROW keys can be used to jog the antenna in azimuth at slow
speed, and the ENTER key stores the currently displayed speed code into non-volatile memory. When
the user jogs the antenna, a voltage code appears in the lower right hand corner of the screen, and the
slow speed code which is displayed is used to control the speed of the antenna. When the speed code
is changed and the user jogs the antenna, the voltage code will slowly settle to a steady state range of
values. Make sure that the voltage code has settled before using the ENTER key to store the speed
code in non-volatile memory. Please see section 3.5 for more information on setting the slow speed.
4.9 ELEV SLOW Mode
This mode is similar to the AZIM SLOW mode. Please refer to sections 4.8 and 3.5 for information.
4.10 CONFIG Mode
The CONFIG mode allows the user to view and/or modify various controller parameters and to enable
or disable certain features. When this mode is active, the SCROLL UP and SCROLL DOWN keys may
be used to select various items for either viewing or modification. To change the value of a parameter
the user can simply key in a new value. The BKSP (backspace) KEY is active. If a new value is keyed
in, for the change to take effect and update the parameter's value in the controller's non-volatile
memory, the entry must be terminated with the ENTER key. If the present value of the parameter is
invalid, '*' characters will be displayed in the item's data field. If the user terminates a data entry with
the ENTER key and the value is accepted, the next CONFIG mode item will be displayed. If the user
terminates a data entry with the ENTER key and the data is not accepted, the CONFIG mode item will
not change. The MODE key can be depressed at any time to exit CONFIG mode.
Access to certain CONFIG mode items can be restricted depending on the status of the Expert Access
Flag and by the values currently assigned to certain CONFIG mode items. When the Expert Access
Flag is reset (see section 2.5), the only CONFIG mode items which will be accessible will be the
AutoPol Enable, Simultaneous Az/El Enable, and Expert Access Enable. When the Expert Access Flag
is set, access to the other CONFIG mode items can be restricted by the value of a controlling CONFIG
mode item.
An example will clarify the concept of a controlling CONFIG mode item. Three CONFIG mode items
related to access to the controller via its serial port are Remote Mode Enable, Comm Port Address, and
Comm Baud Rate. The Remote Mode Enable CONFIG item is the controlling item for the Comm Port
Address and Comm Baud Rate items. If the Remote Mode Enable CONFIG mode item has a value of 0
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