About The Oaf; Checking The Receiver's Oaf - Topcon GR-5 Operator's Manual

About the OAF

Topcon issues an Option Authorization File (OAF) to enable the specific options that you purchased. Topcon's OAF system allows
you to customize and configure the receiver according to your particular needs, therefore purchasing only the options you
require.
The GR‐5 receiver typically ships with an OAF as per initial purchase of the receiver kit configuration. There are several upgrade
options available with the receiver that can extend the receiver's functionality to better suit your job requirement. Examples of
upgrade options are listed below:
•
GLONASS L1, L2 signal tracking
•
GPS L5 signal tracking
•
RTK and update rate 20, and 50 Hz (10 Hz standard)
Contact your Topcon dealer or a representative for a complete listing of available options and pricing information.

Checking the Receiver's OAF

To use TRU to view the status of the receiver's options:
1. Connect the receiver to a computer and open TRU. See the Topcon Receiver Utility (TRU) Online Help for more
information about connecting the receiver to a computer.
2. In TRU, connect to the receiver.
3. Click the Options
the current authorization options and upload new ones.
About the OAF
icon in the main window. The Receiver Options window (Figure 22) displays, so you can view
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