What is VOACAP?

VOACAP (Voice of America Coverage Analysis Program) A free professional high-frequency (HF) propagation prediction software from NTIA/ITS, originally developed for Voice of America (VOA). This ‘work-in-progress’ guide should get you well started with the software. A more comprehensive discussion about the finer details of using the software can be found in George Lane’s book Signal-to-Noise…

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Yaesu System Fusion Background

System Fusion is Yaesu’s implementation of Digital Amateur Radio, utilizing C4FM 4-level FSK Technology to transmit digital voice and data over the Amateur radio bands. In the early 2000’s GMSK emerged in the Amateur radio market as the dominant digital mode, however in 2013 Yaesu introduced “System Fusion” which quickly became the dominating digital format…

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Fusion Q&A

What is C4FM? – In the simplest form C4FM is the method of digital that Fusion uses for communication. C4FM is used by not only Yaesu for amateur communications but is also used by public safety communications. While the two are not compatible C4Fm was selected due to the high voice quality that it produces….

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Repeater & Net Information

SARC General Information Net is held every Tuesday night at 7 PM. Both repeaters are linked. We are always looking for Net Control operators. No one person can do it all. Contact Ed at enickerson427@aol.com Scottsdale Amateur Radio Club manages one (1) site located at 92ed Street and Shea in Scottsdale Arizona. The following info…

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