CDMA450


Sample/Wholesale
Price
Shipping
Carrier
Buy it Now
1 pcs sample
USD
/pcs
USD
Airmail 25days

pcs
USD
/pcs
USD
Airmail 25days


CDMA450

Ultimately found that the program is the best choice to solve the scattered areas communication.
SCDMA wireless technology as a means of access fixed-line telephone business. SCDMA in addition to have the full functionality of the PHS, as well as the following advantages:
Security and confidentiality, which is one of the biggest advantage of the SCDMA system. Allegedly SCDMA is a spread spectrum communication system, its unique mobile phone smart antenna beam greatly improve the performance of the anti-eavesdropping SCDMA is “large and well-informed” with complete independent intellectual property rights, to increase security measures in accordance with government security requirements, this solves phone tapping issue.
The call quality is good. SCDMA is “well informed” static call voice quality can be comparable with the fixed, mobile case fairly to the GSM mobile phone call quality. In the urban area, move up to 100 kilometers per hour, to continue its normal call not dropped calls in the suburbs speed of 120 km. SCDMA is “well informed” call to switch a success rate of more than 95%.
The large and well-informed coverage of base station 4000 m, far greater than the PHS 500 m indicators. Base station coverage radius increases significantly bring two advantages: One is the greatly reduced the number of handovers between, during the move, do not frequent in the different base stations rotation, dropped calls similar to the PHS also be greatly reduced; the second is the number of base stations required to cover the city deep reductions, and thus alleviate the pressure of a huge network construction cost of the project, for example, Beijing laid the PHS system needs more than 10,000 PHS base stations, and large well-informed only five hundred reduce the cost of building a network by a third.
In addition, a large well-informed dispense with the PHS signal, the call is not good the shortcomings, with a good signal, easy to dropped calls, high-speed mobile call. In order to achieve these effects, well-informed system combines smart antenna, synchronous CDMA, software radio, and full-quality voice compression coding and other advanced technologies, which technically exceeds the PHS system.

 

CDMA 450-470MHz yagi direction amtnna


Sample/Wholesale
Price
Shipping
Carrier
Buy it Now
1 pcs sample
USD
/pcs
USD
Airmail 25days

pcs
USD
/pcs
USD
Airmail 25days


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