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ARRL Products:
VHF/UHF/Microwave

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The ARRL UHF/Microwave Projects CD -- Practical projects, design and construction ideas for UHF and Microwave Experimenters

ARRL's VHF/UHF Antenna Classics -- Practical designs and construction details from the pages of QST.

Microwave Projects -- Complete designs and ideas for the microwave experimenter: signal sources, transverters, power amplifiers, test equipment and more.

ARRL's VHF Digital Handbook -- Now Shipping! -- Dive into the digital radio universe!

The ARRL UHF/Microwave Experimenter's Manual software -- For use with The ARRL UHF/Microwave Experimenter's Manual.

April 2005 QST Feedback

Feedback

The Micro Engineering Labs Web site referenced in "A CTCSS Tone Encoder with Morse Code Readout" [July 2004, p 34] should be www.melabs.com.

In the Product Review column, "Ameritron ALS-600S HF Power Amplifier with Switching Power Supply" [March 2005, pp 60-62], we inadvertently listed an old ALS-600 power output specification for CW. The current specification is 500 W output on CW, not 400 W as listed. The amplifier more than met the new specification.

My March 2005 article ["A Backpacker's Delight--The Folding J-Pole, pp 31-33] should have specified 5 feet of 3/16 inch OD bungee cord, and not 5/16 inch.--Mike Heiler, KA0ZLG

In the Figure 2 parts list on page 28 of my article, "A Miniature UHF Fox Transmitter" [March 2005], the correct Jameco part number for the battery holder is 216186.--Dave Bowker, K1FK



Page last modified: 03:40 PM, 07 Mar 2005 ET
Page author: qst@arrl.org
Copyright © 2005, American Radio Relay League, Inc. All Rights Reserved.