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Sound card
adapter |
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| Digital communication modes are present in operations
for many amateur radio station. Many
years ago all the digital operator had to get themselves a device which
received the signal to read it on the screen of their old
computer, often the device decoded only one single mode. The richest could
get PK-232, KPC3 and the beautiful MFJ-1278, they could copy RTTY, AMTOR
and even CW. The digital modes today are using the soundcard of your
computer. |
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| No more TNC but an interface, it send
the information from the software in computer to your radio, this mean,
the electricity in your computer can read only logical signals one or zero
(+5v./0v). But the radio works with 12 v. then how will they communicate,
the answer is by the com port of your computer named COM1, it's allows you
to connect the radio via the mode RS-232. |
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| On the Web, several software allow us to
enjoy digital mode, some are free and others are offered with trial period,
you can get one for each budget. Take a look at MIXW on this Web site
http://www.mixw.net/ you can download
it and try it free for 15 days. This software allows several modes, the
most popular are Packet, Amtor, the Fax, the SSTV, Hellschreiber. MFSK is
the same as slowscan tv but in a different format, RTTY is a beautiful
mode of communication for the amateur radio operator. You will surely find one who is convenient for you. |
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