E F Johnson Company 2425M80 Benutzerhandbuch

Draft 02 - Sep 1 2015

4-20

The “GPS” function allows the user to turn GPS on or off. Pressing the button will toggle 
the GPS. The display will show “GPS On” or “GPS Off”.

GPS Icon

The GPS icon is only applicable to the LCH. The standard Viking Series control head does 
not have a GPS icon. The GPS icon has the following three modes:

LRRP is the TIA standard that defines sending and receiving location commands and 
location data. The radio supports receiving commands from an LSHS and sending data to 
the LSHS. The following table shows the LRRP messages supported by the radio. These 
interactions do not cover all possible interactions defined in the standard. See the TIA Tier 
2 Location Services Document for the full LRRP specification (TIA-102.BAJC).

Table 4.3 GPS Icon Modes

Off

The icon is not visible because GPS hasn’t 

been enabled or has been turned off.

Flashing

GPS is enabled and turned on but has not 

gotten satellite sync.

On

The radio has satellite sync and valid data. 

Table 4.4 Supported LRRP Messages

Immediate-Location-Request

Sent from the LSHS to the radio. The radio responds with data or an 

error.

Immediate-Location-Report

Send from the radio to the LSHS in response to the Immediate-

Location-Request.

Triggered-Location-Request

Sent from the LSHS to the radio. Radio determines if it can do the 

specified trigger and responds.

Triggered-Location-Answer

Sent from the radio to the LSHS in response to the Triggered-

Location-Request. Contains information about whether or not the 

radio can support the requested trigger.

Triggered-Location-Report

Sent from the radio to the LSHS when a trigger happens.