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Experimental Methods in RF Design -- Immerse yourself in the communications experience by building equipment that contributes to understanding basic concepts and circuits.

MFJ 20-meter CW Cub Transceiver Kit -- Enjoy countless hours operating this tiny high performance QRP Transceiver.

Electromagnetic Compatibility Engineering -- Now Shipping! -- The most comprehensive book on electromagnetic compatibility, including all the latest advances and developments in the field.

The ARRL Handbook for Radio Communications -- THE standard in applied electronics and communications -- The BIGGEST Handbook EVER!

The ARRL Antenna Book -- The ultimate reference for Amateur Radio antennas, transmission lines and propagation. Fully-searchable CD-ROM included. 21st edition.

Feedback - March, 2004 QST

Clarification: After reading "A Mobile Antenna Base with Internal Capacitive Matching" and "The Doctor is IN" [Feb 2004, pp 43-46 and 65], Alan Applegate, K0BG, reminds us that there's another virtue to inductive, not capacitive, antenna matching. With an inductor shunted to ground, the mobile antenna is dc grounded. DC grounding can reduce static build-up and "grounds" the antenna should it contact any low-hanging power lines.



Page last modified: 02:00 PM, 02 Feb 2004 ET
Page author: qst@arrl.org
Copyright © 2004, American Radio Relay League, Inc. All Rights Reserved.