1
How To Use An Antenna Analyzer - Basics
How To Use An Antenna Analyzer - Basics
DATE: 2015/03/25::
2
Antenna Analyzer Roundup
Antenna Analyzer Roundup
DATE: 2012/01/06::
3
Mini60 Antenna Analyzer
Mini60 Antenna Analyzer
DATE: 2015/01/04::
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
The amazing FG-01 Antenna Analyzer!
The amazing FG-01 Antenna Analyzer!
DATE: 2012/01/16::
7
TRRS #0050 - MFJ 266 Antenna Analyzer, Part 1
TRRS #0050 - MFJ 266 Antenna Analyzer, Part 1
DATE: 2011/11/09::
8
Using an MFJ-259B Antenna Analyzer
Using an MFJ-259B Antenna Analyzer
DATE: 2013/03/29::
9
SARK-110 Antenna Analyzer Tour
SARK-110 Antenna Analyzer Tour
DATE: 2013/12/08::
10
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::
11
HF vector antenna analyzer Lisic review and tutorial
HF vector antenna analyzer Lisic review and tutorial
DATE: 2014/01/22::
12
iPortable iP60z Antenna Analyzer
iPortable iP60z Antenna Analyzer
DATE: 2012/07/24::
13
TRRS #0507 - MFJ-223 Graphic Antenna Analyzer
TRRS #0507 - MFJ-223 Graphic Antenna Analyzer
DATE: 2015/03/02::
14
Cable and Antenna Analyzer Training Video | FieldFox Handheld Analyzers | Keysight
Cable and Antenna Analyzer Training Video | FieldFox Handheld Analyzers | Keysight
DATE: 2014/08/02::
15
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::
16
Ham Radio MFJ-259B Antenna Analyzer Repair
Ham Radio MFJ-259B Antenna Analyzer Repair
DATE: 2011/07/29::
17
YouKits FG-01 Antenna analyzer
YouKits FG-01 Antenna analyzer
DATE: 2011/11/06::
18
MFJ Antenna Analyzer, Hy-gain AV-18VS Vertical Antenna
MFJ Antenna Analyzer, Hy-gain AV-18VS Vertical Antenna
DATE: 2010/05/30::
19
SARK 100 ANTENNA ANALYZER
SARK 100 ANTENNA ANALYZER
DATE: 2014/07/11::
20
Antenna analyzer with Arduino uno
Antenna analyzer with Arduino uno
DATE: 2013/08/20::
21
FA VA Vector Antenna Analyzer Mk
FA VA Vector Antenna Analyzer Mk
DATE: 2009/11/15::
22
#MWC14: JDSU Cable Antenna Analyzer Demo
#MWC14: JDSU Cable Antenna Analyzer Demo
DATE: 2014/02/27::
23
Comet CAA-500 Antenna Analyzer
Comet CAA-500 Antenna Analyzer
DATE: 2013/10/15::
24
HOMEBREW ANTENNA ANALYZER HF
HOMEBREW ANTENNA ANALYZER HF
DATE: 2012/07/09::
25
Antenna analyzer with Arduino uno with Color TFT
Antenna analyzer with Arduino uno with Color TFT
DATE: 2013/08/22::
26
CRAM TV 18 - AIM 4170C Antenna Analyzer
CRAM TV 18 - AIM 4170C Antenna Analyzer
DATE: 2012/07/15::
27
A Short Demo Using The MFJ 209 Antenna Analyzer
A Short Demo Using The MFJ 209 Antenna Analyzer
DATE: 2011/05/21::
28
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::
29
WE-2705P Antenna Analyzer
WE-2705P Antenna Analyzer
DATE: 2013/02/16::
30
MFJ Presentation: Antenna Analyzer Product Line PART 1 OF 3
MFJ Presentation: Antenna Analyzer Product Line PART 1 OF 3
DATE: 2010/04/04::
31
MFJ-226 VNA Antenna Analyzer
MFJ-226 VNA Antenna Analyzer
DATE: 2015/05/05::
32
VK5JST - 2E0FCZ Antenna Analyzer mods and build HAM Radio
VK5JST - 2E0FCZ Antenna Analyzer mods and build HAM Radio
DATE: 2014/09/09::
33
MFJ Presentation: Antenna Analyzer Product Line PART 3 OF 3
MFJ Presentation: Antenna Analyzer Product Line PART 3 OF 3
DATE: 2010/04/04::
34
MFJ-259b Antenna Analyzer Review
MFJ-259b Antenna Analyzer Review
DATE: 2010/03/07::
35
Antenna analyzer with Arduino Nano
Antenna analyzer with Arduino Nano
DATE: 2013/10/15::
36
Exporting data from Sark100 antenna analyzer
Exporting data from Sark100 antenna analyzer
DATE: 2013/04/30::
37
How to operate the AW06A antenna analyzer de 9M6WST
How to operate the AW06A antenna analyzer de 9M6WST
DATE: 2014/03/11::
38
MFJ-213 SWR Antenna Analyzer, basic operation ( funciones de swr )
MFJ-213 SWR Antenna Analyzer, basic operation ( funciones de swr )
DATE: 2015/04/18::
39
ANTENNA ANALYZER
ANTENNA ANALYZER
DATE: 2012/12/13::
40
RigExpert AA-54 antenna analyzer demo
RigExpert AA-54 antenna analyzer demo
DATE: 2013/01/22::
41
GA-60 Antenna Analyzer 1-60MHz
GA-60 Antenna Analyzer 1-60MHz
DATE: 2015/03/20::
42
PA1ARE Antenna Analyzer V2
PA1ARE Antenna Analyzer V2
DATE: 2014/04/11::
43
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
DATE: 2013/01/13::
44
Antenna analyzer Arduino Uno
Antenna analyzer Arduino Uno
DATE: 2013/08/19::
45
Anritsu S332B Site Master, Cable and Antenna Analyzer, 25 MHz to 3300 MHz  for sale
Anritsu S332B Site Master, Cable and Antenna Analyzer, 25 MHz to 3300 MHz for sale
DATE: 2011/11/21::
46
Rigexpert AA-200 Antenna analyzer
Rigexpert AA-200 Antenna analyzer
DATE: 2009/04/05::
47
RigExpert AA-520 Antenna Analyzer with AC MAXX Hard LCD Protector
RigExpert AA-520 Antenna Analyzer with AC MAXX Hard LCD Protector
DATE: 2012/11/13::
48
MFJ-259C Antenna Analyzer (First Ever YouTube MFJ-259C Video) Unboxing/Review
MFJ-259C Antenna Analyzer (First Ever YouTube MFJ-259C Video) Unboxing/Review
DATE: 2014/05/03::
49
AIM-4170 antenna analyzer with bluetooth
AIM-4170 antenna analyzer with bluetooth
DATE: 2010/01/24::
50
MAX6 antenna analyzer and Android over BT & USB
MAX6 antenna analyzer and Android over BT & USB
DATE: 2013/04/10::
NEXT >>
RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
Jump to: navigation, search
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]

Wikipedia content is licensed under the GFDL License
Powered by YouTube
MASHPEDIA
LEGAL
  • Mashpedia © 2015