User`s manual

100-M0074X1 23 of 24
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9.0 Cable Losses
9.1 Coax Cable
Cable losses must be taken into consideration if the D/C is located a great distance from the
receiver. As mentioned above long cable runs can contribute to more resistance in the lines and also
can contribute to signal attenuation because of the additional capacitance. Even when using a good
coax cable such as RG59/U the attenuation of the signal can be significant. For example, RG59/U
coax will drop approximately 2dB per 100 feet at 50 MHz and 8 dB per 100 feet at 900 MHz. The
intermediate frequency (IF) in this system can fall between 49 MHz to 850 MHz. An inline amplifier
matching the cable losses should be considered if losses exceed 6dB