I’ve got a cheapo ntsc wireless camera that comes with its own receiver (rf-composite). I would like to use the camera with my standalone ntsc TV tuner.
On the dedicated receiver, i can get some local vhf stations, in addition to the camera by adjusting the tuning. This has led me to believe that the camera might use a vhf sideband or the like. Is this a correct assumption? I would assume that if the camera uses vhf, my tuner could pick it up.
Thanks.
What do you mean by a “VHF sideband”? It might be using a frequency in the VHF/FM band, which is illegal in many countries. If your tuner can receive it, you can’t do much with the output.
Leon
leon_heller:
What do you mean by a “VHF sideband”? It might be using a frequency in the VHF/FM band, which is illegal in many countries. If your tuner can receive it, you can’t do much with the output.Leon
Sorry, i’m new to all things RF.
By sideband, i meant a frequency that is in between 2 ‘channels’. I know the camera is similar to [this one they are usually advertised as 800, 1200, or 2400 MHz, however when i go through the range of the tuning knob on the receiver, i get
beginning of adjustment range-----vhf tv station--------vhf tv station--------camera output----vhf tv station—end of adjustment range
This makes me think the camera is broadcasting low-strength vhf ntsc, which would be identical to what my tv tuner accepts, only perhaps at a slightly shifted frequency.
Hope that cleared some things up.](http://www.germes-online.com/direct/dbimage/50157964/50mW_Supper_Mini_Wireless_AV_Color_Camera.jpg)
A frequency between channels isn’t a sideband, sidebands are inherent to any modulated transmission. If the transmission is between channels it will interfere with the channels on either side, because of the sidebands extending into the other channels.
Leon
