Research Concepts RC2500 User Manual

Page 52

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RC2500 Antenna Controller

Chapter 5

Modes

45

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www.researchconcepts.com

After the 47th entry has been displayed, the first screen will appear again and the entire process will

repeat. To exit this option, press ENTER to return to the MENU screen.

MODIFY

From the main MENU display hit the 2 key to select the MODIFY system.

UPDATE CHECK 0-999 HRS: 72 MENU TRAK K

SAT NAME SCROLL ^v,ENTER TO EXIT

There are 8 data items that the user is allowed to modify with this option. Each is successively accessed

by pressing the SCROLL UP/DN keys and advancing through the list. Each entry is explained in Table 1.

TABLE 1

Entry Name

Range

Description

UPDATE CHECK

0-999 HRS

The period of time between track table basepoint update

checks. Default 33 hours.

SEARCH RETRY

0-999 MINS

The period of time between successive SEARCH

attempts when no signal is present and track table data is not available. Default 10 minutes.

BAND: C,K

1 or 2

For dual band inclined orbit satellites, this prompt allows

the user to change the frequency band. Note that the current band is displayed in the upper right hand

corner of the LCD.

CLEAR TRACK

0 or 1

Press 1 to clear the track table entries, or 0 to leave as

is. Be careful with this one!

RESET UPDATE

0 or 1

Press 1 to clear the track table UPDATE flags, 0

to not modify the existing data.

FORCE UPDATE

0 or 1

Press 1 to set the track table UPDATE flags, 0 to not

modify the existing data. (Opposite function of RESET UPDATE.)

MAX ERROR

1-30

Specifies the maximum tracking error in tenths of a dB.

Default value is 5.

SEARCH WIDTH

1-10

Specifies a normalized scaling factor that increases or

decreases the width of the search window. Values greater than 3 increase it, less than 3 decrease it.

Default value is 3.

To exit this option, press ENTER at any time to return to the MENU screen.

REPEAK, SEARCH, or ALIGN

Hitting the 3 key followed by the ENTER key at the main MENU display will initiate some action by the

controller. The action taken depends on the TRACK sub-mode which is active. Table 2 describes the

action taken for each of the track sub-modes.

TABLE 2

Sub-mode

XXXXXX

Action

STEP

REPEAK

Causes the controller to immediately repeak the

antenna.

SEARCH

SEARCH

Causes the controller to initiate another search.

PROGRAM

.ALIGN

The controller will reposition the antenna based on the

current sidereal time and the current az/el data in the track table.

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