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ARRL Products:
VHF/UHF/Microwave(More)
TravelPlus CD-ROM -- Locate repeaters along your travel route. Detailed maps and current repeater data.
Microwave Projects -- Complete designs and ideas for the microwave experimenter: signal sources, transverters, power amplifiers, test equipment and more.
Microwave Projects 2 -- Out-of-stock!
-- More innovative projects: transverters and transmitters, preamplifiers, power amplifiers, filters, and more.
The ARRL UHF/Microwave Projects CD -- Practical projects, design and construction ideas for UHF and Microwave Experimenters
International Microwave Handbook -- Now Shipping!
-- Reference information and designs for the microwave experimenter. Published by RSGB and ARRL.
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New HF Digital Protocol to Debut at DCC
WINMOR, an HF digital protocol designed for use with the Winlink 2000 network, will be unveiled at the upcoming ARRL/TAPR Digital Communications Conference in Chicago, September 26-28.
According to developer Rick Muething, KN6KB, WINMOR will effectively eliminate the need for external PACTOR hardware. "This new protocol is implemented through a Windows application that uses a computer sound card for all the analog-to-digital conversion. It provides error-free ARQ transfers within 200, 500 or 2000 Hz bandwidths," Muething said.
In terms of throughput, Muething said that the 200-Hz WINMOR mode appears to equal the performance of PACTOR I. In WINMOR's 2000 Hz mode, its performance rivals PACTOR III.
"WINMOR is a work in progress," Muething said. "We won't be pulling the wraps off a finished application at the conference. We're close, though. I'd like to see on-air testing in 3 to 6 months."
Conference information and registration is available online or by telephone at 972-671-8277. Rick Muething's presentation paper, WINMOR. . . A Sound Card ARQ Mode for Winlink HF Digital Messaging, is included in the conference proceedings. Proceedings will also be available for sale on the ARRL Web after the conference.
Page last modified: 10:24 AM, 26 Aug 2008 ET
Page author: awextra@arrl.org
Copyright © 2008, American Radio Relay League, Inc. All Rights Reserved.
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