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Horizon Compact Release 1.01.01 Wireless Ethernet Product User Manual – Volume 1
3.4
Power Switch Radio Mount (PSRM)
For redundancy purposes, the PSRM allows two Horizon units to be mounted to a single antenna. Both
units must be oriented for the same polarity and only one unit can transmit/receive at any one time. The
PSRM looks similar to the DPRM shown in Figure 3-3, but has internal components that only allow one
unit to transmit/receive at a time.
units must be oriented for the same polarity and only one unit can transmit/receive at any one time. The
PSRM looks similar to the DPRM shown in Figure 3-3, but has internal components that only allow one
unit to transmit/receive at a time.
Note that redundant systems do not have to use the PSRM. Each may be separately mounted to their
own antennas if desired. See Section 11.13 for more details.
own antennas if desired. See Section 11.13 for more details.
The benefits of the PS RM are that only one antenna is required, reducing tower real estate requirements,
reducing weight and minimizing wind loading.
reducing weight and minimizing wind loading.
Disadvantages include a 4 dB loss in signal when operating on the primary systems at each end of the
link and an 8.5 dB loss in signal when a secondary radio is activated (one end running on Primary and
other end operating on secondary).
link and an 8.5 dB loss in signal when a secondary radio is activated (one end running on Primary and
other end operating on secondary).