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This resource presents the _FCC_ Online Table of Frequency Allocations, codified under 47 C.F.R. § 2.106. The document details frequency assignments across the electromagnetic spectrum, from 0 kHz to beyond 2170 MHz, specifying allocations for various radio services including amateur, maritime mobile, aeronautical radionavigation, and broadcasting. The table is structured with columns for International Table (ITU Radio Regulations Article 5, Section IV, 2019 Edition), United States Table (Federal and Non-Federal), and corresponding _FCC_ Rule Part(s). Specific frequency ranges, such as **135.7-137.8 kHz** and **472-479 kHz**, are identified with their primary and secondary allocations, including Amateur Radio (Part 97) and Maritime Mobile (Part 80). The methodology involves direct publication of regulatory data, reflecting amendments adopted by the _FCC_ that may not yet be codified in the Code of Federal Regulations. Each entry provides the allocated service (e.g., METEOROLOGICAL AIDS, RADIONAVIGATION), relevant footnotes (e.g., 5.53, US18), and the applicable _FCC_ Rule Part. For example, the 1800-2000 kHz range is allocated to AMATEUR radio under Part 97, alongside MOBILE services. Contact information for the Office of Engineering and Technology Policy and Rules Division is provided for inquiries regarding the data. DXZone Focus: Regulatory Database | FCC Publication | Frequency Allocation | Rule Part Reference

Maritime frequencies and nets

3 MHz to 30 MHz, the shortwave bands offer a vast array of international broadcast stations, maritime communications, and amateur radio signals, often heard far beyond the typical range of AM/FM. This resource introduces shortwave listening (SWLing) by explaining what shortwave radio is, how signals propagate via the **ionosphere**, and the general characteristics of different shortwave bands. It details how international broadcasters like Radio Australia and Deutsche Welle transmit in multiple languages, including English, and discusses the real-time nature of these over-the-air transmissions compared to internet streams. The guide provides practical tips for better reception, such as tuning between 9 MHz and 12 MHz during daylight hours and below 9 MHz at night, and notes the presence of amateur radio operators on the 75/80 meter band (3.5 MHz to 4.0 MHz) using **LSB** mode. It reviews popular portable shortwave receivers, specifically highlighting the Sangean ATS-505 and the Sony ICF SW 7600GR, comparing their features like synchronous detection and filter choices. The article also suggests audio enhancement methods, such as external amplified speakers or quality headphones, and briefly mentions high-end receivers like the AOR AR8600MKIIB for advanced monitoring.

Maritime Mobile Service Net for disaster help on high seas on foreign lands

The Utility DXers Forum (UDXF) provides a centralized platform for exchanging news and information concerning utility radio stations and signals operating within the 0 to 30 MHz spectrum. It specifically excludes broadcasting, pirate, and amateur radio transmissions, concentrating instead on a diverse array of other signals. The resource details the types of stations covered, including maritime coastal and ship stations, aeronautical ground and aircraft communications (voice, HFDL, Selcalls, Volmet), military operations, various beacons (NDB, driftnet, propagation, pirate, high-frequency), fax transmissions, numbers stations, diplomatic communications, clandestines, and other unusual signals. Further content addresses radar systems such as Over-the-Horizon, Ocean Wave, and CODAR, alongside ionosondes, chirpsounders, ALE-systems, Selcall-systems, and tone calls. Experimental stations and standard frequency and time stations are also within its scope. The forum also acknowledges utility radio-related amateur events like the International Lighthouse Weekend and Night of Nights, providing a broader context for listeners. The site offers sections for modes, hardware, software, a utility radio archive, digital BC & HF conditions, and a utility radio club archive, along with QSLs and pennants.

Operating Morse code (CW) relies on a diverse array of **telegraph keys**, each with unique characteristics and historical significance. This resource presents a personal collection of such keys, offering visual documentation and details on various models. It features early Marconi keys from the 1900s, including specific models like the Marconi Air Ministry Key and Marconi Coastal Station Keys, alongside **Vibroplex** bugs and JRC keys. The collection also highlights rare items such as the Brown Brothers Magnetic Twin Paddle Key, the Eddystone Bug Key, and Swedish SRA Ericsson Keys. Enthusiasts can view examples of GPO Double Current & Single Current Keys, Navy NATO Keys, and specialized aircraft and maritime keys. The site includes information on historical training devices like the OMNIGRAPH and a Morse Inker from 1900, providing context for the evolution of telegraphy equipment. Additionally, the resource showcases unique items like the B2 Spy Set SOE Agents Key and a WW2 Junker U-BOAT KEY, illustrating the varied applications of Morse keys throughout history. The author, G0RDO, also shares details on a home-made paddle key and invites inquiries for acquiring interesting Morse keys.

Licensed since February 1991, IK1QBT Tony Gallo shares insights into his extensive amateur radio journey, highlighting his involvement in **DXpeditioning** and contesting. His page lists several callsigns he has operated under, including 3A/IK1QBT, TK/IK1QBT, IA5/IK1QBT, and as an operator for 4U9ITU and 4U0ITU, showcasing a broad range of international activity. Tony's background as an ex-Radio Officer in the Merchant Navy and a Radio Operator for the Italian Maritime Coast Radio Station "ICB/GenoaRadio" provides a unique perspective on radio communications. He is an active member of ARI, INORC, and HSC, and serves as secretary for the Marconi Club ARI LOANO, underscoring his deep engagement within the amateur radio community. His participation in multi-multi operator contest teams like IH9P in the CQWW-CW 2006 and the HQ Italian ARI Contest Team in the IARU HF (2004-05-06) demonstrates a strong commitment to competitive operating, primarily on **CW** and HF bands.

The International Lighthouse/Lightship Weekend (ILLW) is an annual amateur radio operating event, typically held on the third full weekend in August, spanning **48 hours**. Originating in 1998 as the _Scottish Northern Lights Award_ by the Ayr Amateur Radio Group, the ILLW has evolved into a major international event. It encourages amateur radio operators to activate stations from lighthouses and lightships worldwide, fostering contacts and promoting maritime heritage. The event is characterized by its minimal rules, making it accessible and enjoyable for participants without the competitive pressure of traditional contests. Over 500 lighthouse entries from more than **40 countries** participate annually, contributing to August becoming recognized as "Lighthouse Month" within the amateur radio community. Unlike typical contests, the ILLW emphasizes participation and enjoyment over scoring or prizes for high contact counts. The site provides registration forms, entrant lists for upcoming years like 2026 and 2027, and reports from previous events, alongside historical context for the ILLW and related lighthouse activities such as the US National Lighthouse Week and the International Lighthouse Heritage Weekend.

Warszawa 2000 Award, Mazowsze (Mazovia) Award, Vistula) River Award, All Baltic Islands Award, Maritime Mobile award, Baltic Sea lighthouses award

Chronicles the operational history of Cullercoats Radio, established in 1906 under _Marconi_ license, detailing its initial use of a spark-gap transmitter feeding a **200-foot** wooden mast. Documents the station's transition in 1915 to Marconi Wireless and a 1929 upgrade to a valve-type transmitter. Explains its later role as a British Telecom (BT) Maritime Radio Station, callsign GCC, serving as a receiving site with transmitting aerials at Hartley. Highlights the demolition of the commercial mast in 2000 and the site's subsequent sale. Features the Tynemouth Radio Club (GX0NWM) operating special event stations like GB4MPC for International Marconi Day from Marconi Point. Includes a historical QSL card confirming a QSO on **7.016 MHz** in 1936.

High-performance rugged antennas and RF accessories such as magnetic mounts, RF coaxial gooseneck adapters, LNAs, BDCs, for law enforcment, military, maritime and video markets.

The Pacific Seafarer's Net is an amateur radio communications net organized to provide support, assistance and daily tracking for maritime operators.

This page provides information on how amateur radio, or 'Ham' radio, is used by the yachting and small boat community for communication and weather information. It explains the global operation of amateur radio, regulations within the U.S., and the role of the American Radio Relay League (ARRL) in licensing and training. The page also highlights maritime 'nets' where Hams exchange weather reports, using voice and digital modes. It encourages establishing webpages for nets and mentions the MAROB and SKYWARN Programs for marine observation and severe weather reporting. The content is useful for hams interested in maritime communications and weather reporting.