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 * * * * * * * * * 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 ... ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
