JAVAD Radio Products

JAVAD Support

Active Member
Staff member
5PLS
JAVAD GNSS
https://www.javad.com/products/radios/

JAVAD radio communication solutions provide highspeed, wireless UHF and Spread Spectrum data radios designed for operation in harsh conditions.
Combined with GNSS receivers, the JAVAD radio communication solutions provide flexible configuration options and rugged reliability.

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John Rosco

Active Member
JAVAD GNSS
Effective Radiated Power (ERP), Transmit Power with various antenna gain from a 'base' UHF radio.

ERP Transmit Power versus Antenna Gain.jpg


The higher the antenna gain, the more horizontal directivity the UHF signal is focused and transmitted . . .
 

John Rosco

Active Member
JAVAD GNSS
UHF Radio Range:

o The key to UHF radio range reception is the height of the UHF antenna.
The higher the antenna above the ground the longer the range attainable as opposed to RF power being transmitted.

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Fresnel zone: At any particular distance from the transmitter and receiver predicts whether obstructions or discontinuities along the path will cause signal interference issues.
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UHF Radio Signal 'Viewshed' coverage using Google Earth:
UHF Radio Viewshed coverage.jpg


Footnote: See Thread “Leapfrog your base..."
 
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