Cable Transmitter Model

This model represents a transmitter that is physically connected to the receiver by some type of "fixed line medium," such as wire, coaxial cable, twisted-pair cable, CAT-5, or fiber optic silica. It is available only for a transmitter whose parent object is a facility, place or target.

The following parameters define this model:

Data Rate. Bit stream transmission rate before spreading.

Chips/Bit. The number of chips per bit, where the bits are as specified by the Data Rate. (After spreading is applied to the original bit stream, the content of the output bit stream from the spreading unit is referred to as chips.)

CDMA Gain. Read-only value computed as 10 * log10(Chip Rate). The spreading improves the carrier-to-noise ratio by a factor equal to the gain.

For report styles that need many objects, a transmitter that uses the Cable model will produce data in the reports only if the other objects also use the Cable model. If a multi-node chain is misconfigured with a transmitter that uses the Cable model and is followed by a receiver that uses a non-Cable model (or vice versa), the report will not issue any data results and will display an error message in the Message Viewer indicating the node that may be in error. If you receive this type of error message, check the prior node.

Computing Access Between a Cable Transmitter and Cable Receiver

The Line of Sight constraint on both sides of a cable link must be disabled to compute Access between a Cable Transmitter and Cable Receiver.