Derating Chart
2-2
DCM000000054 Rev Q
2.3 Derating Chart
To maintain the FCC Spurious Emissions limit of -13 dBm maximum, for multiple carriers it is
necessary to derate their power level. For FM carriers, they need to be derated as shown:
Table 4 Power Derating Chart
Number of Carriers
Power per Carrier
1 +33
dBm
2 +26
dBm
3 +24
dBm
4 +22
dBm
5 +20
dBm
6 +19
dBm
7 +18
dBm
8 +17
dBm
9 +16
dBm
10 +15
dBm
15 +13
dBm
20 +11
dBm
25 +10
dBm
30 +9
dBm
NOTE: The rated mean output power for Industry Canada RSS131 is +29 dBm.
For complex CDMA, TDMA, GSM, etc. carriers, typically de-rate by a further 3 to 5 dB. Consult
Powerwave Technologies for more information.
2.4 Power On Self Test (POST)
Each module automatically performs a self-diagnostics when inserted into the system card-cage.
These tests determine that the unit is correctly installed in the card-cage and not damaged in transit.
•
•
•
•
All six of the LED’s on the front panel will flash 3 times.
If the LED’s do NOT flash three times, then remove the module, check the power source,
and re-insert the module, (See Installation Instructions).
If the card is “OK” the LED’s will continue normally (See Normal Operation).
If there is a fault, then the Red Fault LED will remain on. If this occurs, contact
Powerwave Technologies Inc. (Refer to Chapter 4 Return for Service).
Note!
The Power On Self Test is
Not
an RF test, it only verifies that there is power to the unit and
that the logical circuitry is functioning.
