User's Manual

Table Of Contents
PMP 400/430 and PTP 200 Series Canopy User Guide
Supplement
Issue 4 0DRAFT 6 November 2009 Page 36 of 64
Range does not change transmit power levels. Do not set a higher Range than needed. A higher
Range gives no higher power and slightly reduces throughput to allow for higher air delay and
turn-around time.
If the Range is set to greater than 5 miles, the SM limits the Downlink Data to a maximum of
85% to avoid close-in SMs having registration issues. For example, a Range of 6 miles and a
Downlink Data of 90% is not allowed. Operationally,
if the Downlink Data % is set to greater than 85% and the user enters a range greater
than 5 miles, the module will reset the Downlink Data % to 85%
if the range is set to greater than 5 miles and the user enters a Downlink Data % of
greater than 85%, the module will reset the Downlink Data % to 85%.
Figure 24: Max Range & Downlink Data on AP "Configuration => Radio" page.
Suggested Control Slot settings as a function of number of SMs in the sector are shown in Table
11. Generally all APs in a cluster should use the same number of control slots so as to keep the
frame structures, and thereby the send and receive timing, the same.
Table 11: Control Slot Settings
Number of SMs that
Register to the AP
Suggested Number of
Control Slots
1 to 10 0 or 1
1
11 to 50 1
51 to 150 2
151 to 200 3
Note 1: Any OFDM sector with the Hi Priority Channel enabled on any SM
should be configured with at least 1 Control Slot on the AP.