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QEX - 2024
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May-June
Perspectives
Contents
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March-April
Perspectives
Contents
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January-February 2024
Perspectives
Contents
QEX - 2023
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November-December 2023
Perspectives
Contents
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September-October
Perspectives
Contents
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July-August
Perspectives
Contents
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May-June
PerspectivesContents
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March-April
Perspectives
Contents
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January-February
Perspectives
Contents
QEX - 2022
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November-December
Perspectives
Contents
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September-October
Perspectives
Contents
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July-August
Perspectives
Contents
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May-June
Perspectives
Contents
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March-April
Perspectives
Contents
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January-February
Perspectives
Contents
QEX - 2021
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November-December
Editorial
Table of Contents
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September-October
Editorial
Table of Contents
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July-August
Editorial
Table of Contents
Free Article Amateur Portable Radios (Handheld Transceivers): Exposure Considerations Based on SAR, by Richard (Ric) A. Tell, K5UJU
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May-June
Editorial
Table of Contents
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March-April
Editorial
Table of Contents
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January-February
Editorial
Table of Contents
QEX - 2020
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November/December
Editorial
Table of Contents
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September/October
Editorial
Table of Contents
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July/August
Editorial
Table of Contents
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May/June
Editorial
Table of Contents
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March/April
Table of Contents
Editorial
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January/February
Table of Contents
Editorial
QEX - 2019
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November/December
Editorial
Table of Contents
Free Sample Article: Building an LDMOS Amplifier with an Arduino Interface by Michael L. Foerster, WØIH
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September/October
Editorial
Table of Contents
Free Sample Article: Patterns and Polarizations of Modestly-Sized Loop Antennas by Darrel Emerson, AA7FV; G3SYS
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July/August
Editorial
Table of Contents
Free Sample Article: Receiver Step Attenuator by Scott Roleson, KC7CJ
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May/June
Editorial
Table of Contents
Free Sample Article: An Unusual Multi-Band WSPR Transmitter by Dr. George R. Steber, WB9LVI
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March/April
Editorial
Table of Contents
Free Article: "Baseband Quadrature Multi-Band Modulator" by Braddon Van Slyke, AC0ZJ
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January/February
Editorial
Table of Contents
Free Sample Article: Wide Dynamic Range Field Strength Meter by Thomas Alldread, VA7TA
QEX - 2018
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November-December
Editorial
Table of Contents
Free Sample Article: The Story of the Broadband Dipole by Dave Leeson, W6NL
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September-October
Editorial
Table of Contents
Free sample article: Amplifier Overshoot-Drive Protection by Phil Salas, AD5X
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July-August
Editorial
Table of Contents
Free Sample Article: Adapt Your Equipment to Operate at Millimeter Waves up to 32 GHz by Euclides Lourenço Chuma, PY2EAJ
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May-June
Editorial
Table of Contents
Free Sample Article: An Optimized Grounded Base Oscillator Design for VHF/UHF by Ulrich L. Rohde, N1UL and Ajay K. Poddar, AC2KG.
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March-April
Editorial
Table of Contents
Free Sample Article: High-Power HF Band-Pass Filter Design by Jeff Crawford, K0ZR
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January-February
Editorial
Table of Contents
Free Sample Article: A Tunable RF Preamplifier Using a Variable Capacitance Diode by George R. Steber, WB9LVI
QEX - 2017
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November/December
Editorial
Table of Contents
Free Sample Article:
All-Pass Networks in a Speech Chainby James L. Tonne, W4ENE
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September/October
Editorial
Table of Contents
Free Sample Article: The MSK144 Protocol for Meteor-Scatter Communication by Steven J. Franke, K9AN
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July/August
Editorial
Table of Contents
Free Sample Article: Automatic Tracking Filter for DDS Generator by Riccard Gionette, I0FDH
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May/June
Editorial
Table of Contents
Free Sample Article: Improve Performance of Your Octopus V/I Curve Tracer Using a Single Voltage Transformer by Paulo Renato F. Ferreira, PY3PR
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March/April
Editorial
Table of Contents
Free Sample Article:
The Polar Explorer by Brian Machesney, K1LI and Tony Brock-Fisher, K1KP
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January/February
Our 300th Issue!
Editorial
Table of Contents
Free Sample Article: Re-Purposing an Obsolete Instrument Enclosure by Scott Roleson, KC7CJ
QEX - 2016
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November/December
Table Of Contents
Sample Article: How to Tune an L-Network Matchbox by Charles R. MacCluer, W8MQW
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September-October
Table Of Contents
Sample Article: "Crystal Test Oscillators" by Fred Brown, W6HPH
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July/August
Table Of Contents
Sample Article: Radio Frequency (RF) Surge Suppressor Ratings for Transmissions into Reactive Loads by Gene Hinkle, K5PA
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May/June
Table Of Contents
Sample Article: 6 m Monoband Conversion for Heathkit SB-1000 Amplifier by Ron Berry, WB3LHD
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March/April
Table of Contents
Sample Article: Elevation and Pseudo-Brewster Angle Formation of Ground-Mounted Vertical Antennas by Robert J. Zavrel Jr, W7SX
Click here to view errata for the article “Calculation of FM and AM Noise Signals of ColpittsOscillators in the Time Domain” by Dr. Ulrich L. Rohde, N1UL.
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January/February
Table Of Contents
Sample Article: A Digitally Tunable Band-Pass Filter
by Euclides Chuma, PY2EAJ
QST Companion Article: External Processing for Controlled Envelope Single Sideband
by David Hershberger, W9GR
Letters
2015 Index
QEX - 2015
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November/December 2015
Table of Contents
Sample Article: A Frequency Standard for Today's WWVB
By John Magliacane, KD2BD
This article as printed in QEX has several errors on the schematic diagrams of Figures 7, 12B, 13. and 16. The corrected drawings are included in the article posted here.
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September/October 2015
Table of Contents
Sample Article: Quality Factor, Bandwidth, and Harmonic Attenuation of Pi Networks,
By Bill Kaune, W7IEQ
Letters
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July/August 2015
Table of Contents
Sample Article: " An Arduino Controlled GPS Corrected VFO"
By Gene Marcus, W3PM / GM4YRE
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May/June 2015
Table of Contents
Sample Article: "$25 10 GHz Signal Generator"
By Jeff Wadsworth, KI5WL
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March/April 2015
Table of Contents
Sample Article: An Experimenter's Variable Voltage Transformer
By Ted Drell, W5HEU
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January/February 2015
Table of Contents
Sample Article: A Low Frequency Adapter for your Vector Network Analyzer (VNA)
By Jacques Audet, VE2AZX
2014 Index
QEX - 2014
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November/December 2014
Table of Contents
Sample Article: Controlled Envelope Single Sideband
by David L Hershberger, W9GR
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September/October 2014
Table of Contents
Sample Article: Hands On SDR by Scotty Cowling, WA2DFI
Letters
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July/August 2014
Table of Contents
Sample Article: An RF Filter Evaluation Tool by Gary Richardson, AA7VM
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May/June 2014
Table of Contents
Sample Article: RF Power Amplification Using a High Voltage, High Current IGBT, by Pete Horowitz
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March/April 2014
Table of Contents
Sample Article:" An 8 Channel Remote Control Antenna Selector," by Michael Dzado, AC0HB
Letters
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January/February 2014
Table of Contents
Sample Article " A Software Based Remote Receiver Solution," by Martin Ewing, AA6E
Letters
2013 QEX Index
QEX - 2013
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November/December
Table of Contents
Sample Article An Automated Method for Measuring Quartz Crystals by Richard Harris, G3OTK
2013 QEX Index
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September/October
Table of Contents
Sample Article: A 21 MHz Four Square Beam Antenna
By Garth Swanson, G3NPC
Companion QST article: A 21 MHz Four Square Beam Antenna
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July/August 2013
Table of Contents
Sample Article: The HF7070 HF/LF Communications Receiver Prototype
by Colin Horrabin, G3SBI
I apologize to Gary Richardson, AA7VM, author of the "cover article" in this issue for having his call sign wrong on the cover and in the "About the Cover" box on the Table of Contents page in the printed magazine. Gary's call is correct in the cover image posted here, as well as on the Table of Contents PDF file. -- Larry Wolfgang, WR1B.
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May/June 2013
Table of Contents
Sample Article: A Simple Yet Precise Function Generator for the Experimenter
by Rubens Fernandes, VK5FE
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