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900 MHz - Your NLOS Friend
Are you planning a wireless network where obstructions such as trees or buildings are in your line of sight? NLOS or Non-Line of Sight applications require lower frequency radio waves to penetrate obstructions found along the way.

Of the unlicensed ISM frequencies used in the United States, 900 MHz is the perfect choice for NLOS wireless networks. The 900 MHz frequency allows wireless transmissions to travel distances of up to 1,500 feet with obstructions such as tree and buildings in the way using a directional antenna with around 15dBi of gain.  For indoor wireless NLOS applications, some higher powered 900 MHz radios can penetrate up to 10 walls!

Limitations

For all of the benefits of using 900 MHz in NLOS applications there are also some drawbacks and limitations including:

 

  • A limited amount of unlicensed bandwidth in the 900 MHz spectrum (only 26 MHz). This means that if there are a lot of other devices nearby using the same spectrum range then excessive "noise" from the other devices could adversely affect the signal quality
  • 900 MHz supports lower data rates than the 2.4 and 5 GHz ISM frequency bands, in most cases only 1 to 1.5 Mbps maximum
  • In most countries outside of the United States, 900MHz is not open for unlicensed use

So if your application involves NLOS conditions and lower data rates then 900 MHz is the answer.


Check out our wide range of 900 MHz wireless products and remember that L-com can custom manufacture wireless connectivity products to your exact specifications.

 

900 MHz Antennas 900 MHz RF Amplifiers 900 MHz Filters & Splitters


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