AAI N2201SS - Page 11

11
attenuator or coupler. In addition, when the attenuator is used, the
power and heat dissipation of the attenuator must be confirmed. At least
10W or more power attenuators are used for 5W signals.
As shown in the following figure
When measuring power, the attenuator or coupler can be selected
from the following table
Selection of recommended parameters for the coupler or
attenuator which is supporting a power meter measurement
Maximum
power of
transmitter
Using coupler
Using attenuator
Coupling
attenuation
Power
rating
50W
47dBm
≤-40dB
≥40dB
≥100W
5W
37dBm
≤-30dB
≥30dB
≥10W
500mW
27dBm
≤-20dB
≥20dB
≥1W
50mW
17dBm
≤-10dB
≥10dB
≥0.1W
Note: when using the power measurement function, the measured
Signal is connected to the SMA port on the right side.
The result of the measured value of the power meter is true rms.
The interface for power measurement is as follows:
Transmitter
power 5W is
equal 37dBm
attenuator 30dB
power rating is
10W
At this time N2201SS
input power is 7dBm，
and the maximum
power is no more
than10dBm