Clearing The Nvram; Use Minpad To Clear Nvram - Javad Prego Operator's Manual

O P E R A T I O N
4

Clearing the NVRAM

When recording only L1 data:
SS = 183 + 22*N
When recording L1 and L2 data:
SS = 230 + 44*N
Clearing the NVRAM
The receiver's non-volatile RAM (NVRAM) keeps data required for satellites
tracking, like ephemeris and receiver position. NVRAM also keeps the current
receiver's settings like active antenna input, elevation masks, recording interval
and information about the receiver's internal file system.
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 NVRAM in your
Prego can be interpreted as a "soft boot" in your computer.
Tip: Firmware versions 2.2p1 or higher keep the
PDL modem on after clearing NVRAM.
After clearing the NVRAM, your receiver will require some time to collect the
new ephemerides and complete almanacs (around 15 minutes).
Clearing the NVRAM of your receiver will not delete any of the files already
recorded in your Prego's memory. However, it will reset your receiver to
factory default values.
In addition, the NVRAM is used to keep information about the receiver file
system. Note that after clearing the NVRAM the receiver's REC LED will flash
orange for a few seconds indicating that the receiver is scanning/checking the
file system.
There are two ways to clear NVRAM:
1. In the field, using MinPad.
Using PCView.
1.

Use MinPad to Clear NVRAM

1. Press the power key to turn off the receiver.
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