spread spectrum and broadband

From: Haines Brown (terhi.victor@logonet.com)
Date: Mon Nov 18 2002 - 00:41:04 EET

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    This is OT, but my question was stimulated by an article in Linux
    Journal regarding a WAN in Guinea.

    If one sets up a HF WAN that uses TCP/IP protocol, a distinct
    disadvantage is lack of bandwidth. In one case, the RF modem was
    capable of 1200 baud, and in practice that amounted to about 300 baud.

    That's ok for e-mail, but not much more.

    So I wondered about the potential of spread spectrum for increasing
    bandwidth from, say, 1200 baud to 56 Kbaud. I'd appreciate someone's
    input on the relation of information bandwidth and RF spectrum
    bandwidth when using spread spectrum. Does spread spectrum offer any
    potential at all for increasing signal bandwidth of a TCP/IP HF WAN?

    Haines Brown KG1GRM
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