What to do when the distance between the DA and the source is more than 15 meters?
As mentioned before, with low and medium quality cables, signals, and especially video signals, tend to degrade over distance. Picture definition is effected after a few meters, color gets weaker and smeared and the general quality of the picture is reduced. The main reason for this effect is high frequency loss and interference pickup. The solution is either to use very high quality cables for longer distances, or to use a line amplifier in series with the DA, to pre-compensate for signal degradation. Video line amplifiers are also dependent on cable quality. With medium quality video cable (such as RG59 type), a line amplifier can be effective up to about 100 meters (this number is dependent on some other factors such as environmental noise, initial signal quality and so on). Signal quality loss is almost inevitable, and the question is only how much loss can be tolerated. With higher quality cables, (such as RG11 type), the effectiveness of a line amplifier extends to about 300 mete
