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6 Site Planning
The values for (BPSK) are static receive sensitivity measurements. The other values are
static receive sensitivity measurements with an AMOD threshold applied. The AMOD
threshold applied is for a benign radio channel.
Sensitivity: Sensitivity is defined as the combined receive input signal level on both
-7
horizontal and vertical inputs that produces a Null BER Error ratio of 3x10
.
Output Power: The output power is for a centre channel in Region 1. The output power will
be reduced on the edge channels and may vary if different region codes are selected.
AMOD Threshold: The AMOD threshold is the combined receive input signal level on both
horizontal and vertical inputs that results in the link consistently entering the receive
modulation mode under consideration as the signal level is increased.
System Threshold: Thresholds for all modes except BPSK are for the relevant link
optimization AMOD thresholds. System threshold for BPSK is the BPSK receive sensitivity.
Maximum Link Loss: The maximum link loss for each modulation mode is derived from the
AMOD threshold for that mode (sensitivity threshold for BPSK) and the maximum Region 1
centre channel output power. The figures assume integral antennas with 23 dBi (5.8 GHz and
5.4 GHz) gain are used.
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