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An amateur radio net, or simply ham net, is an "on-the-air" gathering of amateur radio operators.Most nets convene on a regular schedule and specific frequency, and are organized for a particular purpose, such as relaying messages, discussing a common topic of interest, in severe weather (for example, during a Skywarn activation), emergencies, or simply as a regular gathering of friends for ...
Frequency (MHz) Program Transmitter site Time, UTC Days Language Power (kW) Az Remarks 3.965 Radio France Internationale (DRM) Issoudun 01:00-00:57 1234567 French (Digital) 1 ND RFI 3.975 6160 Shortwave AM Radio Winsen 16:00-18:00 .234567 English 1 ND 3.985 SRF Schweizer Radio Kall-Krekel 16:00-17:00 1234567 German 1 ND 3.995 HCJB Deutsch
This is a List of shortwave radio broadcasters updated on Jun 4, 2024: [1] [2] By country. State ... Frequency (MHz) Program Transmitter site Time, UTC Days Language
PACTOR is a radio modulation mode used by amateur radio operators, marine radio stations, military or government users such as the United States Department of Homeland Security, and radio stations in isolated areas to send and receive digital information via radio. [citation needed]
An unsuccessful petition was filed in 1973 to create a CB Class E service at 220 MHz, (part of the amateur radio 1.25-meter band at the time) which was opposed by amateur radio organizations and others. [6] There are several other classes of personal radio services for specialized purposes (such as remote control devices).
Amateur radio National Traffic System [ edit ] For the special purpose of exchanging ARRL Radiograms during National Traffic System nets, the following prosigns and signals can be used, most of which are an exact match with ITU-R and Combined Communications Electronics Board (military) standards; a few have no equivalent in any other definition ...
Radio call signs are a globally unique identifier assigned to all stations that are required to obtain a license in order to emit RF energy. The identifiers consist of from 3 to 9 letters and digits, and while the basic format of the call signs are specified by the ITU-R Radio Regulations, Article 19, Identification of stations, [5] the details are left up to each country's radio licensing ...
One of the two stations might be slightly off frequency, there might be multipath distortion, or there might be a problem with the audio circuits on one or both of the radios. "5 by 5" is an older term used to assess radio signals, as in 5 out of 5 units for both signal strength and readability.
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