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1
Antenna Analyzer Roundup
Antenna Analyzer Roundup
::2012/01/06::
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2
Using an MFJ-259B Antenna Analyzer
Using an MFJ-259B Antenna Analyzer
::2013/03/29::
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3
TRRS #0050 - MFJ 266 Antenna Analyzer, Part 1
TRRS #0050 - MFJ 266 Antenna Analyzer, Part 1
::2011/11/10::
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4
Review T100+ Antenna Analyzer With Slim Jim Antenna
Review T100+ Antenna Analyzer With Slim Jim Antenna
::2013/01/23::
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5
AA30 Antenna Analyser
AA30 Antenna Analyser
::2013/11/01::
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6
SARK-110 Antenna Analyzer Tour
SARK-110 Antenna Analyzer Tour
::2013/12/08::
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7
The FG-01 Antenna Analyzer | Cheap and Effective!
The FG-01 Antenna Analyzer | Cheap and Effective!
::2012/01/17::
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8
Use an Antenna Analyzer WITH your Manual Antenna Tuner for maximum results - AF5DN
Use an Antenna Analyzer WITH your Manual Antenna Tuner for maximum results - AF5DN
::2013/09/29::
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9
MFJ Presentation: Demo with Antenna Part 1 of 2
MFJ Presentation: Demo with Antenna Part 1 of 2
::2010/04/04::
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10
MFJ Presentation: Testing Coax Cables Part 1 of 2
MFJ Presentation: Testing Coax Cables Part 1 of 2
::2010/04/05::
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11
YouKits FG-01 Antenna analyzer
YouKits FG-01 Antenna analyzer
::2011/11/06::
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12
MFJ Presentation: Antenna Analyzer Product Line PART 2 OF 3
MFJ Presentation: Antenna Analyzer Product Line PART 2 OF 3
::2010/04/04::
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13
The RigExpert AA230Pro Antenna Analyser - A Review - M0VST [HD] Part 1
The RigExpert AA230Pro Antenna Analyser - A Review - M0VST [HD] Part 1
::2012/09/12::
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14
iPortable iP60z Antenna Analyzer
iPortable iP60z Antenna Analyzer
::2012/07/24::
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15
Agilent FieldFox Cable and Antenna Analyzer Training Video
Agilent FieldFox Cable and Antenna Analyzer Training Video
::2012/01/05::
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16
Ham Radio MFJ-259B Antenna Analyzer Repair
Ham Radio MFJ-259B Antenna Analyzer Repair
::2011/07/30::
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17
Amateur Radio 2 Meter & 70 CM Testing With VHF/UHF Antenna Analyzer.wmv
Amateur Radio 2 Meter & 70 CM Testing With VHF/UHF Antenna Analyzer.wmv
::2013/01/14::
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18
SARK100 Antenna Analyzer
SARK100 Antenna Analyzer
::2013/06/15::
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19
Antenna analyzer with Arduino uno
Antenna analyzer with Arduino uno
::2013/08/20::
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20
MFJ-269 Antenna Analyzer Test with 4-stack and X510N
MFJ-269 Antenna Analyzer Test with 4-stack and X510N
::2014/03/11::
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21
RigExpert AA-54 antenna analyzer demo
RigExpert AA-54 antenna analyzer demo
::2013/01/23::
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22
MFJ-259b Antenna Analyzer Review
MFJ-259b Antenna Analyzer Review
::2010/03/07::
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23
RigExpert AA-54 antenna analyzer demo by PA3HHO
RigExpert AA-54 antenna analyzer demo by PA3HHO
::2011/09/08::
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24
TRRS #0056 - MFJ-266 Antenna Analyzer Review (Part 2 of 2)
TRRS #0056 - MFJ-266 Antenna Analyzer Review (Part 2 of 2)
::2012/02/27::
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25
RigExpert AA-520 Analizador de Antena Antenna Analyzer Test
RigExpert AA-520 Analizador de Antena Antenna Analyzer Test
::2012/10/26::
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26
RigExpert Antenna Analyzers
RigExpert Antenna Analyzers
::2010/10/20::
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27
MFJ-1786 on an Antenna Analyzer
MFJ-1786 on an Antenna Analyzer
::2012/03/19::
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28
CRAM TV 18 - AIM 4170C Antenna Analyzer
CRAM TV 18 - AIM 4170C Antenna Analyzer
::2012/07/15::
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29
Antenna analyzer with Arduino Nano
Antenna analyzer with Arduino Nano
::2013/10/15::
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30
CRAM TV 01 - Analizador de Antenas AEA/AEA Antenna Analyzer (English CC)
CRAM TV 01 - Analizador de Antenas AEA/AEA Antenna Analyzer (English CC)
::2009/04/10::
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31
HF vector antenna analyzer Lisic review and tutorial
HF vector antenna analyzer Lisic review and tutorial
::2014/01/22::
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32
#MWC14: JDSU Cable Antenna Analyzer Demo
#MWC14: JDSU Cable Antenna Analyzer Demo
::2014/02/27::
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33
PA1ARE Antenna Analyzer V2
PA1ARE Antenna Analyzer V2
::2014/04/11::
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34
MFJ Presentation: Antenna Analyzer Product Line PART 1 OF 3
MFJ Presentation: Antenna Analyzer Product Line PART 1 OF 3
::2010/04/04::
Play Video
35
Rigexpert AA-200 Antenna analyzer
Rigexpert AA-200 Antenna analyzer
::2009/04/05::
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36
Analizador de Antena Feature Tech AW07A
Analizador de Antena Feature Tech AW07A
::2012/10/02::
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37
Comet CAA-500 Antenna Analyzer
Comet CAA-500 Antenna Analyzer
::2013/10/17::
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38
WD8DSB Antenna Analyzer Demo
WD8DSB Antenna Analyzer Demo
::2013/06/18::
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39
WD8DSB antenna analyzer (using VK5JST detector, linearization, and VFO circuits)
WD8DSB antenna analyzer (using VK5JST detector, linearization, and VFO circuits)
::2013/04/18::
Play Video
40
A Short Demo Using The MFJ 209 Antenna Analyzer
A Short Demo Using The MFJ 209 Antenna Analyzer
::2011/05/21::
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41
Anritsu Site Master S332E Cable & Antenna Analyzer
Anritsu Site Master S332E Cable & Antenna Analyzer
::2014/04/22::
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42
Exporting data from Sark100 antenna analyzer
Exporting data from Sark100 antenna analyzer
::2013/04/30::
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43
MFJ Presentation: Antenna Analyzer Product Line PART 3 OF 3
MFJ Presentation: Antenna Analyzer Product Line PART 3 OF 3
::2010/04/04::
Play Video
44
RigExpert Antenna Analyzers - 2013
RigExpert Antenna Analyzers - 2013
::2013/02/09::
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45
HP 8920A Service Monitor and AW07A Antenna Analyzer
HP 8920A Service Monitor and AW07A Antenna Analyzer
::2011/11/22::
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46
Product video: R&S®ZVH Cable and Antenna Analyzer - for more efficiency in the field
Product video: R&S®ZVH Cable and Antenna Analyzer - for more efficiency in the field
::2011/10/12::
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47
Anritsu S332B Cable Antenna Analyzer 25MHz 3.3GHz
Anritsu S332B Cable Antenna Analyzer 25MHz 3.3GHz
::2014/04/22::
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48
Times Technology T100+ Antenna Vector Impedance Analyzer.wmv
Times Technology T100+ Antenna Vector Impedance Analyzer.wmv
::2013/01/11::
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49
AW07A antenna analyzer images
AW07A antenna analyzer images
::2012/02/24::
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50
youkits fg-01
youkits fg-01
::2013/03/19::
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RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
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An antenna analyzer measuring SWR and complex impedance of a dummy load. MFJ Enterprises Inc. MFJ-269.

An antenna analyzer (also known as a noise bridge, RX bridge, SWR analyzer, or RF analyzer) is a device used for measuring the efficiency of antenna systems in radio electronics applications.

Theory of operation[edit]

The antenna analyzer is essentially a bridge where two legs are frequency-dependent complex-valued impedances by impedance matching these legs. When the two impedances are the same the bridge will be balanced. Using this circuit it is possible to either measure the impedance of the antenna connected between ANT and GND, or it is possible to adjust an antenna until it has the same impedance as the network on the left hand side. The bridge can be driven either with white noise or a simple carrier (connected to drive). In the case of white noise the amplitude of the exciting signal can be very low and a radio receiver used as the detector. In the case where a simple carrier is used then depending on the level either a diode detector or a receiver can be used. In both cases a null will indicate when the bridge is balanced.

A typical antenna bridge, the trimmer capacitor (C) is adjusted to make the bridge balance when the variable capacitor on the left is half meshed. Hence the bridge will be able to detect if an aerial is either a resistive or inductive load.

Unlike an SWR meter which measures the standing wave ratio in the cable feeding the antenna, a complex-impedance antenna analyzer requires little or no transmitted power applied to the antenna. The SWR meter works by measuring the reflected wave from the antenna back to the transmitter, which is minimal when the antenna is balanced. A badly tuned antenna can produce enough reflected power to damage the transmitter. Since an RX bridge can be used without transmitting, there is no risk of transmitter damage.[1][2]

Uses[edit]

In amateur radio, an antenna analyzer is a common tool used for troubleshooting antennas and feedlines as well as fine tuning their performance.[3]

References[edit]

  1. ^ Practical Radio Frequency Test and Measurement: A Technician's Handbook by Joseph J. Carr, P. 319. Published by Newnes, 1999. ISBN 0-7506-7161-0, ISBN 978-0-7506-7161-3
  2. ^ Secrets of RF Circuit Design by Joseph J. Carr, Chapter 17, Building and using the RF noise bridge. ISBN 0-07-137067-6
  3. ^ The ARRL Handbook for Radio Communications 2007: The Comprehensive RF Engineering Reference by Mark J. Wilson, Dana G. Reed. Published by American Radio Relay League, ISBN 0-87259-976-0, ISBN 978-0-87259-976-5

See also[edit]

Wikipedia content is licensed under the GFDL License

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