Fw: Time Machine... (fwd)

[Terry Fox]

Why not just add sync pulses and record the whole band as video on a vhs
machine?
Terry

----- Original Message -----
From: <prinaldo@mindspring.com>
To: <tacos@amrad.org>
Sent: Saturday, May 25, 2002 6:08 AM
Subject: Time Machine... (fwd)


> Gang,
> FYI. Sounds like your old pre-d recorder.
> Paul, W4RI
>
> -------- Forwarded message --------
>
> >N4ES, Bill Coleman of Clearwater, FL, has designed a device that will
> >permit the recording of 80 kHz of any HF amateur band on the audio
> >portion of a "hi-fi audio" VCR. It is marketed as a kit called the
> >"Time Machine" by Expanded Spectrum Systems of Tampa. A number of us
> >bought these kits at Dayton.
> >
> >The device basically is a bandpass-filter that lets a single amateur
> >band through, followed by an I-Q mixer that heterodynes the signals to
> >DC. I and Q data are then recorded on left and right channels of the
> >VCR audio track. They are later read out, upconverted, and then can be
> >fed into a receiver's antenna terminal. You can tune the receiver up
> >and down the band.
>
> http://www.expandedspectrumsystems.com/
>
> L
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