Re: receiving a carrier

Joel Kolstad wrote:

Hi Michael,

"Michael A. Terrell" <mike.terrell@xxxxxxxxxxxxx> wrote in message
news:458B1088.8EA93C7A@xxxxxxxxxxxxxxxx
They have the benefit of well trained ears to pick the signal out of
the background noise, and most use a sidetone from a BFO, rather than
raw clicks.

True... ears clearly don't function at 100MHz, although diodes do. :-)

The best long distance telemetry available when I left the
business was 40 Mb/s and cost $50,000 for the electronics on both ends.

I think today you could come close to that with off-the-shelf WiFi gear for
<$500... ignoring the cost of power amplifiers, if needed. He might manage
0.5km with some good MIMO equipment, however.

If he really needs 100 MHz square waves, his transmitter would have to
be in the high GHz range.

I think he just wants to transmit sine waves; he says he's going to "squarise"
(uggh... 2nd time I've heard that time, first was from Boki!) the sine waves
on the far end "somehow." :-)


That would imply a horrendous amount of data.

BTW, the equipment I was talking about was for deep space work, and
the entire bandwidth is recorded for later analysis. Not your everyday
data link.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
.

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