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1
How To Use An Antenna Analyzer - Basics
How To Use An Antenna Analyzer - Basics
DATE: 2015/03/25::
2
Mini60 Antenna Analyzer
Mini60 Antenna Analyzer
DATE: 2015/01/04::
3
Antenna Analyzer Roundup
Antenna Analyzer Roundup
DATE: 2012/01/06::
4
Basics of Using an MFJ Antenna Analyzer by W5LA
Basics of Using an MFJ Antenna Analyzer by W5LA
DATE: 2014/08/14::
5
SARK100 Antenna Analyzer
SARK100 Antenna Analyzer
DATE: 2013/06/15::
6
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
DATE: 2013/09/29::
7
Using an MFJ-259B Antenna Analyzer
Using an MFJ-259B Antenna Analyzer
DATE: 2013/03/29::
8
TRRS #0050 - MFJ 266 Antenna Analyzer, Part 1
TRRS #0050 - MFJ 266 Antenna Analyzer, Part 1
DATE: 2011/11/09::
9
The amazing FG-01 Antenna Analyzer!
The amazing FG-01 Antenna Analyzer!
DATE: 2012/01/16::
10
SARK-110 Antenna Analyzer Tour
SARK-110 Antenna Analyzer Tour
DATE: 2013/12/08::
11
HF vector antenna analyzer Lisic review and tutorial
HF vector antenna analyzer Lisic review and tutorial
DATE: 2014/01/22::
12
GA-60 Antenna Analyzer 1-60MHz
GA-60 Antenna Analyzer 1-60MHz
DATE: 2015/03/20::
13
iPortable iP60z Antenna Analyzer
iPortable iP60z Antenna Analyzer
DATE: 2012/07/24::
14
Antenna analyzer with Arduino uno
Antenna analyzer with Arduino uno
DATE: 2013/08/20::
15
Ham Radio MFJ-259B Antenna Analyzer Repair
Ham Radio MFJ-259B Antenna Analyzer Repair
DATE: 2011/07/29::
16
RigExpert AA-54 antenna analyzer demo
RigExpert AA-54 antenna analyzer demo
DATE: 2013/01/22::
17
SARK 100 ANTENNA ANALYZER
SARK 100 ANTENNA ANALYZER
DATE: 2014/07/11::
18
UNBOXING  AW07A SWR HFVHFUHF Antenna Analyzer 1 5 490Mhz New Verison 220Mhz Included  DV3SJM OKok
UNBOXING AW07A SWR HFVHFUHF Antenna Analyzer 1 5 490Mhz New Verison 220Mhz Included DV3SJM OKok
DATE: 2014/10/29::
19
TRRS #0056 - MFJ-266 Antenna Analyzer Review (Part 2 of 2)
TRRS #0056 - MFJ-266 Antenna Analyzer Review (Part 2 of 2)
DATE: 2012/02/27::
20
FG01A Antenna Analyzer
FG01A Antenna Analyzer
DATE: 2014/04/27::
21
RigExpert AA-54 antenna analyzer demo by PA3HHO
RigExpert AA-54 antenna analyzer demo by PA3HHO
DATE: 2011/09/08::
22
Exporting data from Sark100 antenna analyzer
Exporting data from Sark100 antenna analyzer
DATE: 2013/04/30::
23
MFJ Antenna Analyzer, Hy-gain AV-18VS Vertical Antenna
MFJ Antenna Analyzer, Hy-gain AV-18VS Vertical Antenna
DATE: 2010/05/30::
24
Comet CAA-500 Antenna Analyzer
Comet CAA-500 Antenna Analyzer
DATE: 2013/10/15::
25
HOMEBREW ANTENNA ANALYZER HF
HOMEBREW ANTENNA ANALYZER HF
DATE: 2012/07/09::
26
A Short Demo Using The MFJ 209 Antenna Analyzer
A Short Demo Using The MFJ 209 Antenna Analyzer
DATE: 2011/05/21::
27
WE-2705P Antenna Analyzer
WE-2705P Antenna Analyzer
DATE: 2013/02/16::
28
HP 8920A Service Monitor and AW07A Antenna Analyzer
HP 8920A Service Monitor and AW07A Antenna Analyzer
DATE: 2011/11/22::
29
Low-cost Antenna Analyzer 1hz~3ghz
Low-cost Antenna Analyzer 1hz~3ghz
DATE: 2015/04/11::
30
YouKits FG-01 Antenna analyzer
YouKits FG-01 Antenna analyzer
DATE: 2011/11/06::
31
CRAM TV 18 - AIM 4170C Antenna Analyzer
CRAM TV 18 - AIM 4170C Antenna Analyzer
DATE: 2012/07/15::
32
Review T100+ Antenna Analyzer With Slim Jim Antenna
Review T100+ Antenna Analyzer With Slim Jim Antenna
DATE: 2013/01/22::
33
Running my new antenna analyzer
Running my new antenna analyzer
DATE: 2015/01/30::
34
MFJ Presentation: Antenna Analyzer Product Line PART 1 OF 3
MFJ Presentation: Antenna Analyzer Product Line PART 1 OF 3
DATE: 2010/04/04::
35
Rigexpert AA-1000 antenna analyzer review demo
Rigexpert AA-1000 antenna analyzer review demo
DATE: 2015/03/11::
36
CRAM TV 01 - Analizador de Antenas AEA/AEA Antenna Analyzer (English CC)
CRAM TV 01 - Analizador de Antenas AEA/AEA Antenna Analyzer (English CC)
DATE: 2009/04/10::
37
VK5JST - 2E0FCZ Antenna Analyzer mods and build HAM Radio
VK5JST - 2E0FCZ Antenna Analyzer mods and build HAM Radio
DATE: 2014/09/09::
38
MAX6 antenna analyzer and Android over BT & USB
MAX6 antenna analyzer and Android over BT & USB
DATE: 2013/04/10::
39
Comet CAA-500 Antenna Analyzer
Comet CAA-500 Antenna Analyzer
DATE: 2013/10/17::
40
Antenna Analyzer - MAX6 - BlueTooth - version 8 button - Program V2
Antenna Analyzer - MAX6 - BlueTooth - version 8 button - Program V2
DATE: 2013/01/10::
41
MFJ Presentation: Antenna Analyzer Product Line PART 3 OF 3
MFJ Presentation: Antenna Analyzer Product Line PART 3 OF 3
DATE: 2010/04/04::
42
ANTENNA ANALYZER
ANTENNA ANALYZER
DATE: 2012/12/13::
43
Antenna analyzer Arduino Uno
Antenna analyzer Arduino Uno
DATE: 2013/08/19::
44
PA1ARE Antenna Analyzer V2
PA1ARE Antenna Analyzer V2
DATE: 2014/04/11::
45
MFJ-259b Antenna Analyzer Review
MFJ-259b Antenna Analyzer Review
DATE: 2010/03/07::
46
Agilent FieldFox Cable and Antenna Analyzer Training Video
Agilent FieldFox Cable and Antenna Analyzer Training Video
DATE: 2012/01/18::
47
Antenna analyzer
Antenna analyzer
DATE: 2014/08/07::
48
Rigexpert AA-200 Antenna analyzer
Rigexpert AA-200 Antenna analyzer
DATE: 2009/04/05::
49
ANTENNA ANALYZER METROVNA LT IZ7LDG
ANTENNA ANALYZER METROVNA LT IZ7LDG
DATE: 2014/05/06::
50
MFJ Presentation: Antenna Analyzer Product Line PART 2 OF 3
MFJ Presentation: Antenna Analyzer Product Line PART 2 OF 3
DATE: 2010/04/04::
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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 circuit where two legs are frequency-dependent complex-valued impedances. One leg is a circuit in the analyzer with calibrated components whose combined impedance can be read on a scale. The other leg is the unknown – either an antenna or a reactive component.

To measure impedance, the Bridge is adjusted, so that the two legs have the same impedance. When the two impedances are the same, the bridge is 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 side of the diagram below. 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 antenna 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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