Figure 26: Sm Power Level On Ap "Home => Session Status" Page - Cambium Networks PMP 400 Series Configuration And User's Manual

PMP 400/430 and PTP 200/230 Series Configuration and User Guide
For the PMP 400 5.4 GHz OFDM to meet 27 dBm EIRP with the connectorized 18 dBi antenna (with 1 dB of
cable loss) that comes with the 5440AP or 5441AP, or the integrated 17 dBi antenna that comes with a
5440BH or 5441BH, the maximum setting allowed is 10 dBm (the default) since 27-17=10.
If a connectorized AP or BHM has been purchased and the operator has provided the antenna, the
Transmitter Output Power must be configured based on that antenna and consistent with local or regional
regulations. For example, if a 5440APC is being used with a 15 dBi antenna, then the maximum setting
allowed to meet 27 dBm EIRP is the full 12 dBm of which the radio is capable.
IMPORTANT!
It is the responsibility of the operator and professional installer to ensure
Transmitter Output Power is set within regulatory limits for their country or region.
These must be set or confirmed on initial configuration and after a module is
reset to factory defaults, and should be confirmed after the software on a module
is upgraded.
In most cases the operator will want to set the AP's Transmitter Output Power to the maximum allowed so
as to have the greatest overall range and the greatest range for 3X operation. It may be useful to reduce
Transmitter Output Power when Canopy systems are located close together, with good coverage given
because of their proximity and full power isn't needed, or in cases where an operator is trying to reduce
interference from the Canopy system to other systems.
Each SM's Transmitter Output Power is automatically set by the AP. The AP monitors the received power
from each SM, and adjusts each SM's Transmitter Output Power so that the received power at the AP from
that SM is not greater than -60 dBm. In addition, for 5.4 GHz SMs, the AP sets the SM's Transmitter output
power so the SM's EIRP will be within regulatory requirements.
PMP 400/430 Series networks use Auto-TPC because OFDM technology is more sensitive to large
differences in power levels from SMs operating at various distances from the AP than the single carrier
technology used in Canopy FSK.
PTP 200 Series bridges do not use Auto-TPC – the operator sets Transmitter Output Power on the
"Configuration => Radio" page of both the BHM and the BHS.
PMP 400/430 and PTP 200/230 Series modules display the typical Canopy "Receive Power Level" as
shown in Figure 26. Due to the different modulation technique no "jitter" is calculated or displayed.
Figure 26: SM Power Level on AP "Home => Session Status" page.
pmp-0042 (March 2014) Page 54 of 98