The difference between GSM antenna and GPS antenna

There are many antenna products and excellent performance, which play an increasingly important role in daily life. However, there are too many types, and many of my friends are really stupid. I don’t know the difference between different types of antennas. Today, let’s take a look at the difference between GSM antennas and GPS antennas.

GPS is a circularly polarized antenna for satellite communications at a frequency of 1575.42 +/-10 MHz L2: 1227.60 +/- 10 MHz.

GSM is a linearly polarized antenna for mobile communications, China Mobile GSM frequency: up 890-909MHZ; down 935-954MHZ.

GPS antenna

The GPS antenna is a kind of navigation antenna. It receives or navigates by receiving satellite signals. The satellite signals are divided into L1 and L2 with frequencies of 1575.42 MHz and 1228 MHz, respectively. L1 is an open civil signal and the signal is circularly polarized. The signal strength is about 166-DBM, which is a relatively weak signal. Its components are: ceramic antenna, low noise signal module, cable, connector. Nowadays, the application of car GPS antennas is more and more common, but some car explosion-proof membranes will affect the GPS antenna signal, so an external antenna with magnets (which can be attached to the roof) is very necessary for car GPS.

GSM antenna

The GSM antenna is a digital mobile phone system that is widely used in Europe and other parts of the world. The GSM antenna uses a variant of time division multiple access and is the most widely used of the three digital radiotelephone technologies. It includes several frequency bands such as GSM900:900MHz, GSM1800:1800MHz and GSM1900:1900MHz; the GSM antenna can digitize the data, compress the data, and then send it out from the channel together with the other two user data streams, the other two User data streams have their own time slots. Because many GSM antenna network operators have roaming agreements with other foreign operators, they can continue to use their mobile phones when they arrive in other countries.

In addition, the interface between the GPS antenna and the GSM antenna is also different. The interface of the GPS antenna should be matched with the external antenna interface of the navigator or the GPS Bluetooth satellite module; and the GSM hand antenna is generally a car mobile phone hands-free system via Bluetooth. For the connection of the mobile phone, select the external antenna to match the external antenna interface of your car phone hands-free system.

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From：http://www.hj-antenna.com/difference-gsm-antenna-gps-antenna/