# What is the talker ID of this GPS receiver?

A popular GPS communication protocol is the one specified by NMEA (see here). Communication is done in "sentences", which start with $-- where -- is the talker ID. Page 18 of the linked specifications gives a list of possible talked IDs. I cannot seem to be able to find the talker ID of my GPS receiver (the datasheet is available here). I expect that it is one of CR, GN, GS or SN, but I don't know for sure. What is the talker ID of my GPS receiver. [Note: I am writing test software for a board for which the components only arrive in about 1 month.] • Have you asked the manufacturer? You could ask for a sample NMEA output log... Or just wait a month :) – Justin Apr 27 '12 at 14:34 • DO note that many manufacturers may provide additional information using their own proprietary prefixes. It may not be a bad idea to actually hunt down the official list of sentences the module emits. – AndrejaKo Apr 27 '12 at 16:35 ## 1 Answer NMEA is used to connect several kinds of marine equipment with a PC, GPS is just one of these. GPS receivers should identify themselves as "GP". (GLONASS has "GL" as talker ID.) Example GGA sentence: $GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47