[sdiy] [OT reply] oscilloscope considerations

[Bob Gonsalves]

>  >frequency in american (NTSC) composite analog video is 3.58
>>  (actually 3.579545 as I recall) Mhz. It is the subcarrier used to encode
>  > decode chrominance information.

Though i'ts a moot point with regards to  'scope performance, NTSC 
video bandwidth is closer to 4.1 MHz, with a big old notch in the 
luminance signal around the subcarrier.