{"id":33299,"date":"2018-07-26T22:00:44","date_gmt":"2018-07-27T02:00:44","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=33299"},"modified":"2018-07-26T13:14:55","modified_gmt":"2018-07-26T17:14:55","slug":"led-qrm-jams-automatic-identification-system-onboard-ships","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2018\/07\/led-qrm-jams-automatic-identification-system-onboard-ships\/","title":{"rendered":"LED QRM jams maritime Automatic Identification System"},"content":{"rendered":"

\"\"<\/a><\/p>\n

(Source: Southgate ARC<\/a>)<\/p>\n

\n

LED lights jam shipping Automatic Identification System<\/h2>\n

VERON report investigators from the Netherlands Radiocommunications Agency have discovered RF Pollution emitted by LED lights caused the loss of AIS shipping signals around 162 MHz<\/p>\n

A Google English translation of the Radiocommunications Agency article reads:<\/p>\n

In the mouth of the Waalhaven in the Nieuwe Maas in Rotterdam, ships from the electronic map have been missing for some time. The Port of Rotterdam Authority and skippers were completely in the dark about the cause of this.<\/p>\n

In the busy Rotterdam port area, of which the Waalhaven is a part, it is important that you know where everyone is. A ship that automatically sends its position and data via AIS – and is therefore visible on the electronic navigation chart – not only increases safety, but also shortens the waiting times for the berths and waiting areas. And what about ships loading and unloading dangerous goods or passenger ships? These are continuously monitored. If such a ship is dropped, dangerous situations can arise.<\/p>\n

During an investigation the inspectors of the Radiocommunications Agency quickly discovered that the frequency band for AIS signals was disturbed. And after several polls in the surroundings of the Waalhaven they came to a work of art. In an atelier near the mouth of the Waalhaven, an artist had made a work of art with the help of LED lights. All these lights appeared to be the key to the solution together with the power supply.<\/p>\n

Because LED lights are indeed economical, but if you do not buy the right one or install them incorrectly, they cause a lot of problems. In this case, the frequencies of the AIS band were therefore disturbed. After the power of the lighting was switched off, the disruption was resolved. In retrospect, it appeared that the lighting and the power supply exceeded the interference limits. To prevent new failures, a solution is sought for the artist together with the business community.<\/p>\n

The agency also regularly receives reports of disruptions of AIS reception from the Amsterdam port area. Here, too, we conduct an investigation. If something interesting comes out of this, you may read more about this in the next newsletter. To prevent disruptions, we regularly monitor frequency use (preventively). Especially in areas with busy shipping traffic.<\/p>\n

Source Netherlands Radiocommunications Agency
\nhttps:\/\/magazines.
\nagentschaptelecom.nl\/
\nontwikkelingenindeether\/2018\/03\/
\nschepen-verdwenen-van-de-elektronische-kaart<\/a><\/p>\n

VERON in Google English
\nhttp:\/\/tinyurl.com\/NetherlandsVERON<\/a><\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

(Source: Southgate ARC) LED lights jam shipping Automatic Identification System VERON report investigators from the Netherlands Radiocommunications Agency have discovered RF Pollution emitted by LED lights caused the loss of AIS shipping signals around 162 MHz A Google English translation of the Radiocommunications Agency article reads: In the mouth of the Waalhaven in the Nieuwe […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3,196],"tags":[7000,4089,580],"class_list":["post-33299","post","type-post","status-publish","format-standard","hentry","category-news","category-qrm","tag-led-bulbs","tag-qrm","tag-southgate-arc"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-8F5","jetpack-related-posts":[{"id":23393,"url":"https:\/\/swling.com\/blog\/2017\/01\/oops-dutch-regulator-removes-fm-broadcasters-antenna\/","url_meta":{"origin":33299,"position":0},"title":"Oops…Dutch regulator removes FM broadcaster’s antenna","author":"Thomas","date":"January 14, 2017","format":false,"excerpt":"(Source: Southgate ARC via Mike Terry) Dutch regulator removes broadcaster's antenna It is reported the Dutch Radiocommunications Agency dismantled the antenna of a legally operating broadcast station It appears they thought Vechtdal NL in Ommen on 105.6 MHz was a pirate but the station, an associate of Vechtdal FM, was\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2009\/05\/swdial.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":31783,"url":"https:\/\/swling.com\/blog\/2018\/04\/darc-asks-that-you-send-rf-polluting-led-bulbs-to-elektor-magazine\/","url_meta":{"origin":33299,"position":1},"title":"DARC asks that you send RF polluting LED bulbs to Elektor Magazine","author":"Thomas","date":"April 27, 2018","format":false,"excerpt":"(Source: Southgate ARC via Mike Hansgen) LED Bulb RF Pollution - Elektor Magazine investigates DARC, the German national amateur radio society, are requesting amateurs to send LED bulbs which pollute the RF spectrum to the magazine\u00a0Elektor\u00a0for investigation A Google English translation reads: Elektor-Verlag GmbH calls all readers and especially all\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"Photo By Trung Pham Quoc","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/04\/Light-Bulb-LED-1024x742.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/04\/Light-Bulb-LED-1024x742.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/04\/Light-Bulb-LED-1024x742.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":19942,"url":"https:\/\/swling.com\/blog\/2016\/07\/rfi-from-solar-power-installations\/","url_meta":{"origin":33299,"position":2},"title":"RFI from solar power installations","author":"Thomas","date":"July 4, 2016","format":false,"excerpt":"(Source: Southgate ARC) The Netherlands national amateur radio society VERON reports on the pollution problems caused by Solar Panels installed on homes Electrical systems such as solar panel installations must comply with EMC (Electro Magnetic Compatibility) standards. That means that there is a limit to the electromagnetic fields (EMF) that\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"PV-Solar-Panels","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/PV-Solar-Panels.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/PV-Solar-Panels.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/PV-Solar-Panels.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/07\/PV-Solar-Panels.jpg?resize=700%2C400 2x"},"classes":[]},{"id":50406,"url":"https:\/\/swling.com\/blog\/2021\/10\/fcc-approves-fm-for-cb-radio\/","url_meta":{"origin":33299,"position":3},"title":"FCC approves FM for CB Radio","author":"Thomas","date":"October 1, 2021","format":false,"excerpt":"Many thanks to SWLing Post contributor, Ron who shares the following news via the Southgate ARC: FCC signals FM CB will be permitted on 27 MHz 63 years after the introduction of Class D 27 MHz AM CB Radio the FCC has agreed to permit FM to be used From\u2026","rel":"","context":"In "CB"","block_context":{"text":"CB","link":"https:\/\/swling.com\/blog\/category\/cb\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/10\/Robyn-CB-FM-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/10\/Robyn-CB-FM-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/10\/Robyn-CB-FM-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/10\/Robyn-CB-FM-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/10\/Robyn-CB-FM-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":31326,"url":"https:\/\/swling.com\/blog\/2018\/03\/catsync-a-new-tool-to-control-websdrs-with-your-tabletop-radio\/","url_meta":{"origin":33299,"position":4},"title":"CATSync: A new tool to control WebSDRs with your tabletop radio","author":"Thomas","date":"March 24, 2018","format":false,"excerpt":"(Source: Southgate ARC) Introducing CATSync - The new CAT tool for WebSDRs Oscar, DJ0MY, has developed a new software tool for radio amateurs and SWLs. CATSync\u00a0allows the user to control public WebSDR receivers with a real rig connected via CAT. It supports the classical Web-SDR servers as well as the\u2026","rel":"","context":"In "New Products"","block_context":{"text":"New Products","link":"https:\/\/swling.com\/blog\/category\/new-products\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/KiwiSDR-1024x623.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/KiwiSDR-1024x623.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/03\/KiwiSDR-1024x623.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":31794,"url":"https:\/\/swling.com\/blog\/2018\/04\/darcs-initiative-to-track-the-state-of-radio-interference\/","url_meta":{"origin":33299,"position":5},"title":"DARC’s initiative to track the state of radio interference","author":"Thomas","date":"April 28, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor, Alexender (DL4NO), who shares the following comment in response to our recent post about LED bulb QRM: The DARC does even more: It is planning a long-term project with some 50 automatic monitoring stations with standardized, calibrated antennas and according to standardized methods to\u2026","rel":"","context":"In "Ham Radio"","block_context":{"text":"Ham Radio","link":"https:\/\/swling.com\/blog\/category\/ham-radio\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/04\/DARC-Logo_Farbe-1024x664.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/04\/DARC-Logo_Farbe-1024x664.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/04\/DARC-Logo_Farbe-1024x664.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/33299","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=33299"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/33299\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=33299"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=33299"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=33299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}