Button and LED operations

SPS985/SPS986 GNSS smart antenna only.

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 smart antenna is receiving corrections. The smart antenna 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.

Action	Power button	Description
Turn on the smart antenna	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 smart antenna	Hold for 2 seconds and then release	When holding down the Power button; the battery LED remains on. 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 smart antenna 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.
Delete application files	Hold for 30 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 and stays on for 15 seconds, then turns off to indicate that it is time to release the Power button. The smart antenna 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.

Receiver mode	Satellite LED Amber
No satellites or < 1 satellite tracked	Off
	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	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.

Radio mode

Radio LED Amber

Description

No receive

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.

Wi-Fi LED

Receiver mode	Wi-Fi LED Amber
Wi-Fi off	Off
Wi-Fi is access point	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)

Lemo port

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

Button/LED	Appears
	On
	Off
	See the section Button and LED operations.
	Off