Clear Nvram Using Tru; Cleaning And Storing The Receiver - Topcon MR-2 Operator's Manual

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The specified baud rate is incompatible with the baud rates the modem supports.
– The baud rate is the rate at which the receiver transmits differential messages to the modem and vice
versa.
– Change the baud rate to that which the modem supports. Refer to the modem's manual for
information.
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The base and rover modems use different radio link parameters.
– Configure the Base and Rover radio modems according to the procedures listed in the applicable
section. See the
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The distance between the base and rover is too far:
– Close the distance between the base and rover.
– Use repeaters to increase radio coverage.
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There may be a source of radio interference that disrupts radio communications:
– Change the RF channel (if possible).
– Use a spectrum analyzer to detect the radio characteristics of the interfering signal and change the
system's configuration accordingly.
– Remove the jamming signal source or relocate the radio antennas (if possible).
– The radio may not be properly connected to the receiver.
– Double-check all cable connections.

Clear NVRAM Using TRU

The receiver's Non-volatile Random Access Memory (NVRAM) holds data required for satellite tracking, such as
ephemeris data and receiver position. The NVRAM also keeps the current receiver's settings, such as active
antenna input, elevation masks, and recording interval.
Even though clearing the NVRAM is not a common (nor normally a recommended) operation, there are times
when clearing the NVRAM can eliminate communication or tracking problems. Clearing the receiver's NVRAM
can be interpreted as a "soft boot" in the computer.
After clearing the NVRAM, the receiver requires time to collect new ephemerides and almanacs (around 15
minutes).
Clearing the receiver's NVRAM will reset the receiver to factory default values.
To clear the NVRAM:
1. Connect the receiver and computer. See "Step 2: Connect to a Computer or Display Unit and RTK
Correction Source" on page 13 for this procedure.
2. Open TRU, and connect to the receiver. See "Connect The Receiver to TRU" on page 20.
3. Click the Tools icon in the main screen. The Tools dialog box appears, enabling you to reset the receiver
and clear the NVRAM.
4. Click Factory Reset, and then click Yes to continue.

Cleaning and Storing the Receiver

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Use a clean cloth moistened with neutral detergent or water.
•
Never use an abrasive cleaner, ether, thinner benzene, or other solvents.
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Always make sure the receiver is completely dry before storing it. Dry any moisture with a soft, clean cloth.
Clear NVRAM Using TRU
Topcon Receiver Utility TRU
(
P/N: 1011907-01
Online Help
) , embedded in the software.
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