Since then, I got my hands a brand new RC video transmission kit and also a very old CRT TV...
I (re)did some of the tests on the LCD TV I used in the previous article, just to check the reproductibility of previous measures. Unfortunately its composite input died when I started the tests, so I switched to the SCART input using an adapter.
Here are the results:
latency in ms
|Sony CCD + LCD TV (composite) (same test as prev. article)||41|
|Sony CCD + LCD TV (SCART)||31|
|Sony CCD + AV Transmission + LCD TV (SCART)||31|
|Sony CCD + CRT TV||15|
Some more conclusions:
- The latency induced by a CRT display is inredibly small!
- The 5.8Ghz AV transmission kit doesn't add any measurable latency to the system
- Weirdly enough (at least on this particular LCD TV), the latency decreases by about 10ms when using the SCART input instead of the composite one.