Epic

Same features and reliability as the standard 3AS/3ASD BUT.......

Includes a 10W transmitter and two receivers which allow a new "diversity" function. This new function on the receiver antenna selects the best signal available and therefore improve reliability of connection where there is a lot of reflections and fading. The powerful transmitter gives greater coverage than ever before and thus extending and often doubling the already impressive distances.

Diversity reception explained

The SATEL Epic does not have to necessarily be direct line of sight between the base station and moving sub station, but the radio signal propagates by reflecting from buildings and natural differences in terrain. Fading occurs when the receiver detects radio signals reflected from a number of objects. This is because the propagation speed of radio signals is the same as the speed of light so that the signals reflected from the different objects arrive at the receiver at the same time but at different phases and thus cancel each other out and cause fading. The dips in the signal appear with half wave intervals. In cases where reception is based solely on reflected signals, reliability depends heavily on antenna position even if the distance between the base station and the sub station is close.

By setting the two antennas on the diversity receiver at least three quarters of a wavelength apart from each other the message can always be received by at least one, it is rare that they both receive a dip in the signal at exactly the same time.

Technical Note!

If you do not want to use the Epic for its diversity, but solely for its power out put, then you will need to switch off the diversity option within  the program mode, and protect the Rx output with a cover.

 

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