[1000mp] RE: Digital Modes

[Adam Farson]

Hi Bill,

A TNC is a Terminal Node Controller - a "smart" radio modem which converts
DC signals into FSK or PSK tones. A TNC is required for RTTY, AMTOR, SITOR,
PACTOR, packet etc. Nowadays, there are programs which run on a PC and
emulate a TNC. The computer's soundcard generates and demodulates the VF
(voice-frequency) tones. This has rendered commercial TNC's such as the
Kamtronics line somewhat obsolete.

I must confess to almost complete ignorance on the subject of digital modes,
as I only operate SSB and (rarely) CW. I would suggest that you ask around
on the Yaesu and Icom reflectors - many of the guys there are heavily
involved in the digital modes, and will be glad to help you.

Cheers for now, 73,
Adam VA7OJ/AB4OJ


-----Original Message-----
From: William Diamond [mailto:wjdiamond at sbcglobal.net]
Sent: 28 September 2004 06:06
To: Farson at Shaw. Ca
Subject: Digital Modes

Hi Adam,

IN reading thru some of the rig manuals, they keep talking about a TNC is
all that is needed for some of the digital modes.

So,,,,,, what is a TNC, what does it do, and where can one be found?

Thanks and 73

           WILLIAM J. DIAMOND
          ROGERS, ARKANSAS USA

        HAM RADIO OPERATOR WRØT
 VISIT MY NEW RADIO ROOM REVISED 7-04, AT
           www.wjdiamond.com

       DIGITAL PHOTOGRAPHY SITE IS AT
http://pages.sbcglobal.net/wjdiamond/index.html



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