Trimble Outdoors 5700/5800 - Manual (Page 60)

4 General Operation
4 8 5700/5800 GPS Receiver User Guide
5700 GPS Receiver Oper
ation
On Port 3, the output voltage is approximately 0.5 V less than the input
voltage. For example, if power is being supplied from the internal
Lithium ion batteries, the maximum battery voltage is 8.4 V, so the
maximum output voltage is 7.9 V.
Note – When you start a survey using the Trimble Survey Controlle
softwarer, and you are using an external radio, the software automatically
enables power output on Port 3.
47.4
Firmware
A receiver’s firmware is the program inside the receiver that makes the
receiver run and controls the hardware. When you need to upgrade the
firmware for your 5700 receiver, Trimble recommends that you use the
WinFlash software. For more information, see The WinFlash Software,
page 67.
C
WARNING – Upgrading the firmware deletes all application files on the
5700 receiver.
An alternative method of upgrading your firmware is to copy the .elf file
directly to the CompactFlash card from your computer.
To do this:
1. Connect the CompactFlash card to your desktop computer.
2. Using Windows Explorer, copy the .elf file from your computer to
the CompactFlash card.
3. Disconnect the CompactFlash card from your computer and
insert it into the receiver.
4. Turn the receiver off.
5. Hold down [D] and press [P] .
The receiver starts up in Monitor mode, automatically detects
the newer version of the firmware, and installs it. In Monitor
mode, the red SV Tracking LED is lit solidly and the yellow
Logging/Memory LED flashes slowly.