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5

Step 4 - Enter the Antenna Serial Number
and Calibrate the Gyros

Follow the steps below to enter the antenna serial 
number through the web interface and calibrate the 
gyros. Since the main board stores the bias values 
for the antenna’s gyros, you need to calibrate the 
gyros whenever you replace the main board.

a. If your computer is disconnected from the 

TV-Hub, 

reconnect now to access its web 

interface. (

Refer to the TracVision system’s Quick 

Start Guide for details.

)

b.

At the Support page of the web interface, select 

Command Line

.

c.

At the command line, enter and send the 

following commands:

   •  HALT

   •  DEBUGON

   •  EEUNLOCK

   •  =CALACCELOFFSET

d.

After gyro calibration is complete, and the TV-

Hub returns a 

“PASS

” message, enter and send 

the following command:

=CALNEWGYRO

NOTE: Gyro calibration can take up to fifteen 
minutes. The command line will display 

“INITIALIZING”

 during the process.

e.

After gyro calibration is complete and the 

TV-Hub returns a 

“PASS

” message from both 

gyros, enter and send the following command:

   •  ZAP

f.

Reconnect to the TV-Hub web interface and run 

the 

Setup Wizard

 to select satellites and 

services.

Important!

Calibrate the gyros only while the vessel is 
stationary in calm seas or the vehicle is parked.

=SERNUM,<9-digit antenna serial number> (example: =SERNUM,140802543)

Figure 11:  Command Line

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