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PAL - Wikipedia
https://en.wikipedia.org/wiki/PAL
The PAL-L (Phase Alternating Line with L-sound system) standard uses the same video system as PAL-B/G/H (625 lines, 50 Hz field rate, 15.625 …
What are the PAL variants? - CAVSI
https://www.cavsi.com/questionsanswers/what-are-the-pal-variants/
PAL-Nc In Argentina, the PAL-Nc (combination N) variant is used. It employs the 625 line/50 field per second waveform of PAL-B/G,D/K,H,I but with a chrominance subcarrier frequency of 3.582 MHz. VHS tapes recorded from a PAL-Nc or a PAL-B/G,D/K,H,I broadcast are indistinguishable because the down converted subcarrier on the tape is the same. 4.
[Solved] Colour subcarrier for PAL system is:
https://testbook.com/question-answer/colour-subcarrier-for-pal-system-is--60796fbfefaa1f781936eebc
Like NTSC, PAL uses a quadrature amplitude modulated subcarrier carrying the chrominance information added to the luminance video signal to form a composite video baseband signal. The frequency of this subcarrier is 4.43361875 MHz for PAL 4.43, compared to 3.579545 MHz for NTSC 3.58.
Worldwide TV Systems (NTSC, PAL, and SECAM)
http://www.paradiso-design.net/TVsystems_worldwide.html
analog - Why the audio subcarrier is never transmitted ...
https://electronics.stackexchange.com/questions/247605/why-the-audio-subcarrier-is-never-transmitted-with-baseband-analogue-video-signa
It should not significantly affect the quality of either video (as the audio subcarrier is outside the video bandwidth) or audio (as the audio carrier frequency of, depending on region, 4.5-6.5 MHz - and its bandwidth - are high enough to encode all audible frequencies). Stereo could also be carried the usual broadcast way (MTS, A2 or NICAM).
Colour Subcarrier - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/computer-science/colour-subcarrier
In standard PAL-B, PAL-G, PAL-H, and PAL-I, an offset of +25 Hz is added to the basic subcarrier frequency so as to minimize the visibility of the Hanover bar effect. The 25 Hz offset means that the phase relationship of subcarrier to horizontal advances exactly +0.576° each line.
PMT1 Micro Video/Audio/Data Transmitter
https://www.advmw.com/pdf/ADS-PMT1-PCB_Video_Transmitter.pdf
Subcarrier Insertion Level: -26 dBc Nominal (Audio) or -22 dBc Nominal (Data) Subcarrier On/Off Control: Remote and Programmable Switch Control Modulation Type: Analog FM, Positive Sense Frequency Response: 100 Hz to 10 kHz ±1.5 dB (Audio) or DC to 50 kbps (Data) Pre-Emphasis: 75 sec NTSC or 50 sec PAL (Audio) or None (Data)
PST1 PCB Video/Audio/Data Transmitter
https://www.advmw.com/pdf/ADS-PST1-PCB_Video_Transmitter.pdf
Subcarrier Insertion Level: -26 dBc Nominal (Audio) or -22 dBc Nominal (Data) Subcarrier On/Off Control: Remote and Programmable Switch Control Modulation Type: Analog FM, Positive Sense Frequency Response: 100 Hz to 10 kHz ±1.5 dB (Audio) or DC to 50 kbps (Data) Pre-Emphasis: 75 sec NTSC or 50 sec PAL (Audio) or None (Data)
How can i make a 5.5MHZ Intermediate Frequency (IF ...
https://www.reddit.com/r/AskElectronics/comments/sm69uq/how_can_i_make_a_55mhz_intermediate_frequency_if/
The audio part needs a 4.5mhz for the audio subcarrier on NTSC signals. But you need 5.5mhz for PAL which is what im using it for. I know how to make a 4.5mhz transformer but i dont know how to make a 5.5mhz one. How could i make one?
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