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1
Antenna Analyzer Roundup
Antenna Analyzer Roundup
::2012/01/06::
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2
TRRS #0050 - MFJ 266 Antenna Analyzer, Part 1
TRRS #0050 - MFJ 266 Antenna Analyzer, Part 1
::2011/11/09::
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3
The amazing FG-01 Antenna Analyzer! I love it.
The amazing FG-01 Antenna Analyzer! I love it.
::2012/01/16::
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4
Using an MFJ-259B Antenna Analyzer
Using an MFJ-259B Antenna Analyzer
::2013/03/29::
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5
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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6
MFJ-259b Antenna Analyzer Review
MFJ-259b Antenna Analyzer Review
::2010/03/07::
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7
Basics of Using an MFJ Antenna Analyzer by W5LA
Basics of Using an MFJ Antenna Analyzer by W5LA
::2014/08/14::
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8
SARK100 Antenna Analyzer
SARK100 Antenna Analyzer
::2013/06/15::
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9
SARK-110 Antenna Analyzer Tour
SARK-110 Antenna Analyzer Tour
::2013/12/08::
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10
Antenna analyzer with Arduino uno
Antenna analyzer with Arduino uno
::2013/08/20::
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11
Agilent FieldFox Cable and Antenna Analyzer Training Video
Agilent FieldFox Cable and Antenna Analyzer Training Video
::2012/01/04::
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12
Ham Radio MFJ-259B Antenna Analyzer Repair
Ham Radio MFJ-259B Antenna Analyzer Repair
::2011/07/29::
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13
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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14
iPortable iP60z Antenna Analyzer
iPortable iP60z Antenna Analyzer
::2012/07/24::
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15
YouKits FG-01 Antenna analyzer
YouKits FG-01 Antenna analyzer
::2011/11/06::
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16
SARK 100 ANTENNA ANALYZER
SARK 100 ANTENNA ANALYZER
::2014/07/11::
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17
Antenna analyzer Arduino Uno
Antenna analyzer Arduino Uno
::2013/08/19::
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18
RigExpert AA-54 antenna analyzer demo
RigExpert AA-54 antenna analyzer demo
::2013/01/22::
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19
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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20
MFJ Presentation: Antenna Analyzer Product Line PART 1 OF 3
MFJ Presentation: Antenna Analyzer Product Line PART 1 OF 3
::2010/04/04::
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21
MFJ-259C Antenna Analyzer (First Ever YouTube MFJ-259C Video) Unboxing/Review
MFJ-259C Antenna Analyzer (First Ever YouTube MFJ-259C Video) Unboxing/Review
::2014/05/03::
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22
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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23
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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24
HF vector antenna analyzer Lisic review and tutorial
HF vector antenna analyzer Lisic review and tutorial
::2014/01/22::
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25
RigExpert AA-520 Analizador de Antena Antenna Analyzer Test
RigExpert AA-520 Analizador de Antena Antenna Analyzer Test
::2012/10/25::
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26
RigExpert AA-54 antenna analyzer demo by PA3HHO
RigExpert AA-54 antenna analyzer demo by PA3HHO
::2011/09/08::
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27
FG01A Antenna Analyzer
FG01A Antenna Analyzer
::2014/04/27::
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28
Comet CAA-500 Antenna Analyzer
Comet CAA-500 Antenna Analyzer
::2013/10/15::
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29
MAX6 antenna analyzer and Android over BT & USB
MAX6 antenna analyzer and Android over BT & USB
::2013/04/10::
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30
ANTENNA ANALYZER
ANTENNA ANALYZER
::2012/12/13::
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31
HOMEBREW ANTENNA ANALYZER HF
HOMEBREW ANTENNA ANALYZER HF
::2012/07/09::
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32
AIM-4170 antenna analyzer with bluetooth
AIM-4170 antenna analyzer with bluetooth
::2010/01/24::
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33
MFJ Antenna Analyzer, Hy-gain AV-18VS Vertical Antenna
MFJ Antenna Analyzer, Hy-gain AV-18VS Vertical Antenna
::2010/05/30::
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34
AW07A ANTENNA ANALYZER BY PU2OKE
AW07A ANTENNA ANALYZER BY PU2OKE
::2014/07/15::
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35
WE-2705P Antenna Analyzer
WE-2705P Antenna Analyzer
::2013/02/16::
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36
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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37
Rigexpert AA-200 Antenna analyzer
Rigexpert AA-200 Antenna analyzer
::2009/04/05::
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38
Review T100+ Antenna Analyzer With Slim Jim Antenna
Review T100+ Antenna Analyzer With Slim Jim Antenna
::2013/01/22::
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39
Antenna analyzer
Antenna analyzer
::2014/08/07::
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40
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
::2013/01/13::
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41
CRAM TV 18 - AIM 4170C Antenna Analyzer
CRAM TV 18 - AIM 4170C Antenna Analyzer
::2012/07/15::
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42
MFJ-1786 on an Antenna Analyzer
MFJ-1786 on an Antenna Analyzer
::2012/03/18::
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43
Antenna analyzer with Arduino uno with Color TFT
Antenna analyzer with Arduino uno with Color TFT
::2013/08/22::
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44
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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45
VK5JST - 2E0FCZ Antenna Analyzer mods and build HAM Radio
VK5JST - 2E0FCZ Antenna Analyzer mods and build HAM Radio
::2014/09/09::
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46
Exporting data from Sark100 antenna analyzer
Exporting data from Sark100 antenna analyzer
::2013/04/30::
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47
Microwave antenna alignment tutorial using handheld spectrum analyzer
Microwave antenna alignment tutorial using handheld spectrum analyzer
::2013/09/12::
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48
#MWC14: JDSU Cable Antenna Analyzer Demo
#MWC14: JDSU Cable Antenna Analyzer Demo
::2014/02/27::
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49
RigExpert AA-520 Antenna Analyzer with AC MAXX Hard LCD Protector
RigExpert AA-520 Antenna Analyzer with AC MAXX Hard LCD Protector
::2012/11/13::
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50
FA VA Vector Antenna Analyzer Mk
FA VA Vector Antenna Analyzer Mk
::2009/11/15::
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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 capacitive 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]

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