Button and LED operations

The LEDs on the front panel indicate various operating conditions. Generally, a lit or slowly flashing LED indicates normal operation, a LED that is flashing quickly indicates a condition that may require attention, and an unlit LED indicates that no operation is occurring. The following table defines each possible LED state:

The term...	means that the LED...
Very slow flash	is off and on equally with a 1.5 second cycle.
Slow flash	alternates on/off every ½ second.
Radio slow flash	is off longer than it is on when the receiver is receiving corrections. The receiver repeats this cycle typically once per second. is on more than off when the receiver is transmitting corrections. The receiver repeats this cycle typically once per second.
Medium flash	is off and on equally more than once per second.
Fast flash	alternates rapidly on/off every 1/10 of a second.
On	is lit steady.
Off	is unlit.

Power button

Action	Power button	Description
Turn on the receiver	Press (see the note below)	All four LEDs light up and remain lit for 3 seconds. Then all LEDs go off and then the power LED immediately comes back on.
Turn off the receiver	Hold for 2 seconds and then release	When holding down the Power button; the battery LED remains on. The Wi-Fi LED remains in its state and then turns off after 2 seconds. The Satellite LED turns constant and then turns off after 2 seconds. After releasing the power button, the battery LED stays lit for about 5 seconds and then all LEDs go blank.
Clear the ephemeris file and reset the receiver to the factory defaults	Hold for 15 seconds	The Radio, Wi-Fi, and Satellite LEDs turn off after 2 seconds. The battery LED remains on. After 15 seconds, the Satellite LED comes on to indicate that it is time to release the Power button. Upon restart, the Wi-Fi will also turn on in Access Point mode. This does not remove any receiver options or firmware.
Delete application files	Hold for 30 seconds	The Radio, Wi-Fi, and Satellite LEDs turn off after 2 seconds. After 15 seconds, the Satellite LED comes on and stays on for 15 seconds, then turns off to indicate that it is time to release the Power button. The battery LED then remains on for 15 seconds after releasing the Power button. The receiver then restarts.

The term “press” means to press the button and release it immediately. The term “hold” means to press the button and hold it down for the given time.

Satellite LED

Receiver mode	Satellite LED Amber
No satellites or < 1 satellite tracked	Off
Boot up or when in Monitor mode	On
Tracking fewer than 4 SVs	Fast flash
Tracking 4 or more SVs	Slow flash

Radio LED

Radio mode	Radio LED Amber	Description
No receive or transmit	Off
Receive	Radio slow flash	See the table at the top of this topic. This LED also flashes when using the Wi-Fi only for receiving corrections.
Transmit	Radio slow flash	See the table at the top of this topic. This LED also flashes when using the Wi-Fi only for transmitting corrections. By default, the R780 has xFill on. The firmware interprets this as receiving satellite corrections so the Radio LED flashes off more than on. If the R780 is in Base Transmit mode, you can optionally turn off xFill via the web interface. The Radio LED will flash on more than off when in Base Transmit mode.

Radio mode

Radio LED Amber

Description

No receive or transmit

Off

Receive

Radio slow flash

See the table at the top of this topic.

This LED also flashes when using the Wi-Fi only for receiving corrections.

Transmit

Radio slow flash

See the table at the top of this topic.

This LED also flashes when using the Wi-Fi only for transmitting corrections.

By default, the R780 has xFill on. The firmware interprets this as receiving satellite corrections so the Radio LED flashes off more than on.

If the R780 is in Base Transmit mode, you can optionally turn off xFill via the web interface. The Radio LED will flash on more than off when in Base Transmit mode.

Wi-Fi LED

Receiver mode	Wi-Fi LED Amber
Wi-Fi off	Off
Wi-Fi is access point (base mode/sending corrections)	Medium flash
Wi-Fi is client (and not connected to an access point)	Off
Wi-Fi as client (rover mode receiving corrections)	Very slow flash

Battery LED

Receiver mode	Power LED Green	Description
Off	Off
On. Healthy power	On	Either internal battery or external power
Low power	Fast flash	(<about 15% power)
Logging data internally	Flashes off every three seconds

Lemo port

When you load firmware using the WinFlash utility, the LEDs show as:

Button/LED	Appears
	On
	Off
	See the section Satellite LED.
	Off