Transcription of VoIP and Amateur Radio - American Radio Relay …
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VoIP and Amateur Radio - American Radio Relay …
From February 2003 QST ARRL By Steve Ford, WB8 IMY Voice Over Internet Protocol, bet- ter known as voip , is not new. People have been enjoying voice communication over the Internet for years. What is new are the latest Ama-teur Radio applications of voip . Rather than relying on ionospheric propagation for long-distance communication, a growing number of hams are using the Internet in combination with VHF or UHF FM transceivers to span hundreds or thousands of miles. There are several flavors of Amateur voip in use today. Depending on how they are configured, these systems may involve repeater linking where two dis-tant repeater systems share signals with one another (Figure 1). Another applica-tion is so-called simplex linking where one or more users with handheld or mobile transceivers communicate directly with a base station (or node) that is linked to the Internet (Figure 2).
From February 2003 QST © ARRL. . .
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