Quote:
Originally Posted by Electronic M
Given it's a WWII guidance camera and that the military had a lot of leeway on how it used RF during the war it's possible the engineers foresaw the possibility of having a channel wider than 6MHz and higher scan rates for increased resolution for some special application and gave the video circuits enough bandwidth that one could swap the transmitter and tweak the scan to achieve that easily.
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The lower the horizontal scan rate the higher, not lower , the resolution in pixels. In any case, I found a statement of 4.5 Mhz bandwidth for that system, and double sideband AM, black at 100% up modulation, but it didn't say whether the 4.5 Mhz was the baseband or the DB channel width. Somebody with a transmitter .... or the manuals ... should know. But nobody has manuals.