User's Manual

PMP 400/430 and PTP 200/230 Series Motorola PMP Solutions User Guide Supplement
Issue 6.0 May 2011 Page 44 of 77
Figure 25: SM Power Level on AP “Home => Session Status” page.
4.3 DOWNLINK DATA %, RANGE, AND CONTROL SLOTS
The Downlink Data parameter on the AP’s and BHM’s Configuration => General page can be set
in 1% increments between 10% and 90%. The default as shown in Figure 26 is 75%.
In order for U.S. model 5.4 GHz PTP Series radios to meet FCC DFS compliance, the Downlink
Data has been limited to 10-65% at the Backhaul Master. For all other regions of 5.4 GHz PTP
230 Series radios and all regions of 5.8 GHz PTP radios, the Downlink Data range remains 10-
90%.
The Range parameter on the AP’s Configuration => General page can be set in 1-mile
increments between 1 and 30 miles for PMP 430 5 and 10MHz channel bandwidth and between
1 and 24 miles for PMP 430 20MHz channel bandwidth. The default as shown in
Figure 26 is 2
miles. Set the Range to the distance of the furthest SM from any AP in the area. The Range
parameter effectively determines frame structure of the Canopy over-the-air protocol, especially
turn-around guard time. Setting Range the same across a geographical area give best overall
performance.
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%.