Industry News

Home > NEWS > Industry News

Company News

Industry News

GPS performance indicators

source:Industry News release time:2022-12-07 Hits:     Popular:realtime gps tracker online


  G500L -4G OBD GPS Tracker

  1. Satellite trajectory

  There are 24 GPS satellites orbiting the earth along six orbits (every four satellites in a group). Generally, no more than 12 satellites are on the same side of the earth. Most GPS receivers can track 8 to 12 satellites. At least 3 satellites are required to calculate LAT/LONG (2D) coordinates. Add another one to calculate 3D coordinates. For a given position, the GPS receiver knows which satellites are nearby at this time, because it continuously receives update signals from satellites.

  2. Parallel channel

  Some consumer GPS devices have 2-5 parallel channels to receive satellite signals. Because at most 12 satellites may be visible (the average is 8), this means that the GPS receiver must access each satellite in order to obtain information about each satellite.

  Most GPS receivers on the market are 12 parallel channels, which allows them to continuously track the information of each satellite. The advantages of 12 channel receivers include fast cold start and initialization of satellite information, and they can have better reception effect in forest areas. Generally, a 12 channel receiver does not need an external antenna unless you are in a closed space, such as a cabin or carriage.

  3. Positioning time

  This refers to the time it takes for your GPS receiver to determine its current position when you restart it. For a 12 channel receiver, if you are near the last positioning position, the positioning time is generally 3-5 minutes in cold start and 15-30 seconds in hot start, while for a 2-channel receiver, the cold start time is more than 15 minutes, and the hot start time is 2-5 minutes.

  4. Positioning accuracy

  The horizontal positioning accuracy of most GPS receivers is about 5m~10m, but this is only when SA is not turned on.


Read recommendations:

fleet gps tracking

4G GPS Tracker Vendor

VSL100 GPS Speed Limiter, Speed Governor

Talk about the advantage of the use of pet smart positioner.realtime gps tracker online manufacture

GPS vehicle tracking and dispatching function

Last article:GPS positioning accuracy

Next article:Automobile GPS Global Positioning System

Related Information

Magnetic gps tracker Vendor

2023-04-23

fleet gps tracking wholesale

2023-04-23

gps tracker online

2023-04-11

Dog gps tracker Factory

2023-04-23

Asset GPS Tracker

2023-04-11

mini gps tracker wholesaler

2023-04-23

gps tracker for bike Factory

2023-04-23

SecumoreGPS

2023-03-16

GPS Tracker wholesale

2023-04-11

car gps tracker price

2023-04-11

G08L - 4inch Smart Tail Light Tracker

2022-06-20

GF20-Mini Magnet GPS Tracker

2022-06-21

G09L -6 inch Tail light tracker

2022-06-20

personal gps tracker Production

2022-09-06

TK100B- Accurate Pro version GT06/TK100

2023-10-06

Principle of GPS indoor positioning technology

2022-11-25

how to install gps locator

2022-07-09

Composition and characteristics of GPS system

2022-11-07

Little White-fronted Goose No. 12 spent nearly 4 months in the summer breeding season near the Berin

2022-09-17

GPS principle

2022-07-23

GPS positioner type installed on the mortgage vehicle.fleet solution webfleet solutions

2023-03-22

GPS Starry Structure and Solving Process

2023-02-10

Solution to faults such as GPS vehicle management system not being online or offline.car gps tracker

2023-09-23

Do you know the working principle of the pet GPS positioner?realtime gps tracker online wholesaler

2023-03-10

GPS Principles.Pet GPS Tracker manufacturer

2023-07-14

GPS positioning manufacturers introduce the composition of satellite positioning systems.Dog gps tra

2023-06-14

Design of GPS Vehicle Satellite Positioning Simulation System

2022-08-24

GPS navigation software.Hidden GPS Trackers Factory

2023-08-12

GPS intelligent bus stop

2022-12-09

What are the emphasis on the installation of the GPS positioner?rastreador de GPS wholesaler

2023-03-16