Back-up cams
I have been reviewing many of the posts about the new wireless cams. As I have learned they all require power to fire up the camera and many have hooked them the the clearance lights...this is a good...
Forum Discussion
This is a few years old, and to some degree, I'm sure the technology has been improved on. I received this when searching for a camera.
Wired vs. Wireless
While the picture produced by a high quality wireless system may be okay when the vehicle is stationary, every wireless device (every one!) is susceptible to interference, and that interference will be worse when the vehicle is in motion. Because a wireless system transmits a video image through the air, instead of via a cable, there can be some interference from a variety of sources, including electrical interference, high power radio and television transmitters, and many other sources encountered as the vehicle moves.
Think of the difference in quality between the images produced by an old television antenna on the roof, versus a modern cable television signal. The mere fact that the video image must be converted to a radio signal, transmitted through the air, and converted from a radio signal back to a video image at the receiver and monitor, means that the possibility for signal degradation is a serious consideration.
One serious consideration should be that most of the wireless systems sold (on eBay and elsewhere) are total and complete garbage. Most don't provide the 'mirror' image (see "Mirror Image Capability" above). Most are not weatherproof. Most have directional antennas on the camera and receiver that must be aimed directly at each other. Most have antennas that are easily broken during normal use.
Wired vs. Wireless
While the picture produced by a high quality wireless system may be okay when the vehicle is stationary, every wireless device (every one!) is susceptible to interference, and that interference will be worse when the vehicle is in motion. Because a wireless system transmits a video image through the air, instead of via a cable, there can be some interference from a variety of sources, including electrical interference, high power radio and television transmitters, and many other sources encountered as the vehicle moves.
Think of the difference in quality between the images produced by an old television antenna on the roof, versus a modern cable television signal. The mere fact that the video image must be converted to a radio signal, transmitted through the air, and converted from a radio signal back to a video image at the receiver and monitor, means that the possibility for signal degradation is a serious consideration.
One serious consideration should be that most of the wireless systems sold (on eBay and elsewhere) are total and complete garbage. Most don't provide the 'mirror' image (see "Mirror Image Capability" above). Most are not weatherproof. Most have directional antennas on the camera and receiver that must be aimed directly at each other. Most have antennas that are easily broken during normal use.
