This question is mostly a feasibility/sanity check before I dive into the actual engineering of my project. I have very little experience with analog signals and want to make sure I am not doomed from the beginning.
The end goal is to have multiple NTSC/PAL signals transmitted over a single Tx/Rx system such as this: "http://hobbyking.com/hobbyking/store/__13443__900MHZ_1500mW_Tx_Rx_1_3_inch_CCD_Camera_NTSC.html(Link)". I am trying to design a system for an aircraft what will allow me to view multiple camera views at once without using multiple transmitters. After some brainstorming, I came up with the following solutions.
1. Instead of sending video through the transmitter, send a carrier signal for each of your cameras. Each of these carrier signals would carry the NTSC/PAL signal from the camera. Technically, this would be carrier signals within a carrier signal since it is being transmitted wirelessly. The signal could then be decoded on the receiver end and broken out into the individual video signals.
2. Same idea as #1 but with a FM conversion. One of my friends was worried that there would not be enough space between the three frequencies (carrier signal from the wireless transmitter, each of the video feed carrier signals, and the video feeds themselves). He doesn't think that the hardware would be able to transmit that complex of a signal. To alleviate one of these frequencies, the NTSC/PAL signal could be converted into FM. This FM would ride on one of the carrier signals described in idea 1.
3. The last idea could be to multiplex the signals. Using a high speed video multiplexing chip, the videos could sent over the FPV system. The systems have a high enough sample rate that there would be no degradation in the signal going into the transmitter; I just question whether the transmitter would be able to send a signal like this. The other issue is that there would have to be some type of clock signal sent so that the receiver would demultiplex the video in the correct order.
Are any of these options plausible? Or better yet, is there already a commercial system that does this? Any input would be appreciated!
The end goal is to have multiple NTSC/PAL signals transmitted over a single Tx/Rx system such as this: "http://hobbyking.com/hobbyking/store/__13443__900MHZ_1500mW_Tx_Rx_1_3_inch_CCD_Camera_NTSC.html(Link)". I am trying to design a system for an aircraft what will allow me to view multiple camera views at once without using multiple transmitters. After some brainstorming, I came up with the following solutions.
1. Instead of sending video through the transmitter, send a carrier signal for each of your cameras. Each of these carrier signals would carry the NTSC/PAL signal from the camera. Technically, this would be carrier signals within a carrier signal since it is being transmitted wirelessly. The signal could then be decoded on the receiver end and broken out into the individual video signals.
2. Same idea as #1 but with a FM conversion. One of my friends was worried that there would not be enough space between the three frequencies (carrier signal from the wireless transmitter, each of the video feed carrier signals, and the video feeds themselves). He doesn't think that the hardware would be able to transmit that complex of a signal. To alleviate one of these frequencies, the NTSC/PAL signal could be converted into FM. This FM would ride on one of the carrier signals described in idea 1.
3. The last idea could be to multiplex the signals. Using a high speed video multiplexing chip, the videos could sent over the FPV system. The systems have a high enough sample rate that there would be no degradation in the signal going into the transmitter; I just question whether the transmitter would be able to send a signal like this. The other issue is that there would have to be some type of clock signal sent so that the receiver would demultiplex the video in the correct order.
Are any of these options plausible? Or better yet, is there already a commercial system that does this? Any input would be appreciated!
