vhf uhf ham freq

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vhf uhf ham freq

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Manufacturers : Antennas : Marine

  • Sirio Antenne - Antenna for GSM, CB, marine, VHF/UHF, HAM and high frequency 1,9/2,4GHz
    [ Hits: 9507 | Votes: 23 | Rating: 5.72 ]
Operating Modes : Repeaters
  • Ham Radio: Using Repeaters - The most basic form of repeater receives communication on one frequency and re-transmits at a different frequency. This is known as duplex communication. Repeaters are generally set up to operate with FM modulation on the amateur bands within the VHF (30 MHZ – 300 MHZ) and UHF frequencies (300 MHZ – 3 GHz). These are generally the frequencies used by handheld and mobile devices.
    [ Hits: 92 | Votes: 1 | Rating: 8 ]
Operating Modes : Repeaters : Repeater maps
  • UHF VHF Repeaters in Italy - List of VHF UHF ham radio repeaters in italy with frequencies and locations
    [ Hits: 2435 | Votes: 15 | Rating: 6.15 ]
Propagation : Beginner's Guide
  • Exploring the Spectrum From HF to UHF Frequencies - During radio's early days, high frequencies were under 30 MHz due to technical limitations. As understanding grew, components improved, allowing for higher frequencies like VHF and UHF up to 3 GHz. The HF band's long wavelengths provide unique propagation challenges influenced by solar activity. VHF and UHF bands face diffraction and reflection issues but offer diverse applications, from amateur radio to 5G and GPS technologies.
    [ Hits: 56 | Votes: 0 | Rating: 0 ]
Technical Reference : Repeater
  • Cross Band Repeaters - Crossband Repeating is a process where a Ham transmits one signal on one band (typically UHF), and it is received by another radio with a better antenna/power installation, and re-transmitted (typically on VHF) to another radio system, or a repeater. Everyday examples of cross-band repeaters are repeater receive sites that hear the input signals on 2m and retransmit those signals on a frequency higher than 220 MHz.
    [ Hits: 206 | Votes: 0 | Rating: 0 ]
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