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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
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 ...
Download QR code; Print/export ... This is a List of shortwave radio broadcasters updated on Jun 4, 2024 : [1] [2] By country. State ... Frequency (MHz) Program
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).
430–440 MHz: Amateur radio (70 cm band) and amateur radio satellite; 476–477 MHz: PRS Personal Radio Service (Land mobile service) 485–502 MHz: Analog and P25 Emergency services use; 510–622 MHz: Terrestrial television; 960–1215 MHz: Aeronautical radionavigation; 1240–1300 MHz: Amateur radio (23 cm band)
The crystal detector demodulates the radio frequency signal, extracting the modulation (the audio signal which represents the sound waves) from the radio frequency carrier wave. In early receivers, a type of crystal detector often used was a "cat whisker detector".
HAMBEL Amateur Radio Club: A very active amateur radio club based in Belagavi. It is one of the oldest ham radio clubs in India. It is one of the oldest ham radio clubs in India. Hams of Pune : This is a ham radio club based in Pune, Maharashtra though they have members from other cities too, Hams of Pune also operates a VHF/UHF repeater ...
Frequency-Hopping Radio Clock Coordination: Military radio systems using frequency hopping modes, such as SINCGARS and HAVEQUICK, require all radios within a network to have the same time input to their internal clocks (+/-4 seconds in the case of SINCGARS) to be on the correct frequency at a given time.