[Elecraft] How to demo P3/K3?

[George & Jan]

The machine will expect synchronizing pulses to lock up the head and capstan 
motors. Without sync some machines will not even go into the record mode, if 
it does noise will really confuse the motor servos.

The pass band of a video recorder for NTSC (analog) is not necessarily  flat 
to 4 MHz. depending on the specific machine. The color  subcarrier (double 
sideband centered at 3.58 MHz with about 1.5 MHz band pass)  is processed 
differently in the various formats. In most semi-pro & consumer NTSC units 
the color subcarrier is converted to "Color Under" centered at about 0.5 MHz 
(Yep creates negative sidebands!).

Don't even think about digital video recorders without converting to a 
compatible digital format!

George
AI4VZ
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Baseband TV video is somewhere around 4 MHz, so I wonder if it would be
possible to record some 80m activity using the video (yellow) input of a
VCR or DVR ...