Yes, the IC-7800 introduced toslink to the ham hobby
and it seems to work wonders on digi modes. One hopes
that similar optical (read: NO RFI EVER) links will see
their way into the hobby over time. Maybe some vendors
will offer toslink adapters for USB and audio lines?
de Ken
Jim Lux wrote:
At 01:22 PM 6/1/2005, Ahti Aintila wrote:
Wally and all,
Believe me, all these requires good understanding of the theory, but
that is
not enough. Finding the optimal wiring in our wireless hobby is art that
beautifies the science. Who would make the optical fiber interface for
our
SDR-1000 so that we don't need to be artists and scientists at the same
time?
You know, this isn't that far fetched. A lot of relatively inexpensive
audio equipment has "TOSlink" connectors these days. If the DVD player
sells for $100, the total parts cost inside can't be much more than
$10-15, so the optical interface is going to be a very, very small part
of that. These links are relatively low speed and low performance
compared to the ones used in the telecom industry. They use 1mm (aka
1000 micron) plastic fiber.
Perhaps rather than fooling around with USB, etc, interfaces, the next
generation SDR should use a digital optical interface. I think the
optical audio interface has provisions for control data as well as the
digitized audio stream(s).
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
James Lux, P.E.
Spacecraft Radio Frequency Subsystems Group
Flight Communications Systems Section
Jet Propulsion Laboratory, Mail Stop 161-213
4800 Oak Grove Drive
Pasadena CA 91109
tel: (818)354-2075
fax: (818)393-6875
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