![]() In order for that adapter to work your TV must support displaying both 50Hz and 60Hz signals. ![]() We do carry a less expensive alternative from Mayflash, but it does not convert the signal frequency to the correct format. This converter will correct the color transmission, the number of scan lines, and the signal frequency. As long as you are using one of these connection types you can use the Atlona Multi-System PAL/NTSC video converter. Generally this will be composite (the yellow RCA connection) or s-video. One of the first things you'll need to check is what type of video connection you'll be using between the two. For an example we'll use a PAL DVD player and an NTSC TV. If you have a need to connect PAL and NTSC equipment together it will require something to change the signal format. This problem is caused by the difference in signal frequency. Depending on the equipment, you may also have experienced an image that looks like it is scrolling up and down. This is due to the differences in color transmission. If you have ever connected a PAL source to an NTSC display you likely ended up with an image that is in black and white. This means that NTSC and PAL equipment are not directly compatible. PAL generally runs 25 interlaced FPS with a signal of 50Hz. ![]() PAL most commonly has 625 scan lines, of which 576 are visible. PAL on the other hand does not set exact format for these things in its specifications, although it uses a pretty standard format. NTSC also uses 29.97 interlaced FPS or frames per second, this is done on a signal with frequency of ~60Hz. NTSC uses 525 scan lines, of which 486 are visible. Other differences are found in the resolution and frequency of the signal. Simply put, one of the main differences is that NTSC and PAL both specify their own methods for transmitting the color information to your TV. Let's briefly mention some of the technical differences and then we'll lay out why this may matter to you. What is the difference between PAL and NTSC? Here at Sewell Direct we get a lot of people asking this exact question.
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