An antenna analyzer or in British aerial analyser (also known as a noise bridge, RX bridge, SWR analyzer, or RF analyzer) is a device used for measuring the input impedance of antenna systems in radio electronics applications.
In radio communications systems, including amateur radio, an antenna analyzer is a common tool used for fine tuning antenna and feedline performance, as well as troubleshooting them.[1]
Antenna bridges have long been used in the broadcast industry to tune antennas. A bridge is available which measures complex impedance while the transmitter is operating, practically a necessity when tuning multi-tower antenna systems.[2] In more recent times the direct-reading network analyzers have become more common.
- ^ Wilson, Mark J.; Reed, Dana G., eds. (2007). The ARRL Handbook for Radio Communications. Newington, CT: The American Radio Relay League. ISBN 978-0-87259-976-5.
The comprehensive RF engineering reference
ISBN 978-0-87259-976-5 - ^ Battison, John. "Using the operating impedance bridge". Radio magazine (online ed.). New Bay Media. Archived from the original on 18 July 2016. Retrieved 20 July 2016.
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