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DXER Ham Radio DX News

The latest dx news/current propagation and more. Visit mike's Amateur Radio Page at www.qsl.net/swlham

Thursday, June 21, 2018

Ham Radio Mentioned Prominently In High-Frequency Trading Story

This story connects with the topic of this extensive thread in QRZ Ham Radio Discussions,

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Signals that seem likely to be candidates for such experiments have been observed GLOBALLY within the amateur bands, 40, 20, 17 meters. They are short duration relatively narrow banded signals that sound like “time ticks” every 1 second, and hop around usually zero-beat on 5 khz dial spacing’s as observed on USB mode with a 1 khz offset ie 14294, 304, 309, 319, 324, etc etc.

FCC Part 5 Experimental licenses have been granted to many for HF use potentially for this application. Most of those have frequency allocations that avoid Part 97 Amateur Radio allocations. Searchable on the FCC ELS web site – https://ift.tt/2tds4Wg

At least one of the possible candidates not mentioned in this news article, M-WAVE NETWORKS LLC, has been granted a FCC Part 5 Experimental license, call sign WJ2XGD, that INCLUDES the entire amateur 20 meter band with 4.7 kW ERP.

Unfortunately, the FCC Part 5 licenses granted so far WAIVE any station ID requirements. So determining the source of the Ham band intrusive signal(s) is difficult. Hopefully Hams in the Chicago area continue to monitor for these and if possible go mobile and RDF them for ID.

The Part 5 licenses also include the boilerplate in Special Conditions (2) Licensee should be aware that other stations may be licensed on these frequencies and if any interference occurs, the licensee of this authorization will be subject to immediate shut down.”

Declaring these as QRM is of course a judgement call. But if these signals can be ID’ed, IMO perhaps the FCC and the experimenters should at least be notified of the potentially problematic situation of using the Ham bands.

73, John, WØPV

Read the full article at https://forums.qrz.com/index.php?threads/ham-radio-mentioned-prominently-in-high-frequency-trading-story.617581/. STRAY SIGNALS does not claim ownership of the article.

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