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How can I extend the range of Linx RF modules?

We are often asked if one can extend the range of Linx RF Modules. This depends on the radio module. The 300 and 400MHz radios (LR Series, LT Series, KH3 Series) as well as the narrowband 868 and 900MHz radios (NT Series) are capable of achieving the maximum output power allowed for unlicensed operation under government regulations (FCC Part 15, Industry Canada, Europe’s ETSI). In most cases, increasing the output power of the modules would make them illegal. It is possible to add an LNA onto the radios, but that would result in a marginal range increase. A higher gain antenna is also an option on the receiver. The transmitter output power will likely need to be reduced by the same gain added by the antenna, making it pointless on the transmitter.

The 900MHz FHSS radios like the HumPRO Series, HumRC Series, HumPRC Series and TT Series can use an amplifier to increase the transmitter output power. In fact, we added an amplifier to the HumPRO Series to make the Amplified HumPRO Series in order to increase the range. Adding another amplifier to these will run afoul of government regulations. A high gain antenna can also be used with these, but the transmitter output power will need to be reduced.

Contact Linx Technical Support for further details. Also, be sure to check out our Wireless Made Simple blog for the latest in wireless innovations and trends.

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Linx Technologies

159 Ort Lane
Merlin, OR, US 97532
Toll Free: 1-800-736-6677
Intl: 1-541-471-6256
Fax: 1-541-471-6251
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