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Remote Module Per-
Carrier De-Rating
Printed: 03.06.19,16:02
USER MANUAL
All signals that fall within a given Pass-Band range will "share" power amongst them.
A multiple channel effect is Intermodulation - signals produced from non-linear
effects between the intended channel signals. This intermodulation may cause
interference to receiving equipment. In order to minimize Intermodulation signals,
Power de-rating must be applied. In the USA there are FCC Intermodulation
Specifications published in the EIA Standard PN2009. The Tables below gives the
maximum per channel Output Levels allowed as a function of the number of
channels. Note that depending on the actual input levels, the gain may need to be
reduced to comply with the above regulations.
iDEN / Cellular / Paging
(effective IP3 per Antenna = +35dBm)
(the power is shared in these 3 bands)
Number of
Power per
Carriers
Carrier per
Antenna
Port (dBm)
2
+18.7
3
+16.0
4
+14.0
5
+12.5
6
+11.3
7
+10.3
8
+9.5
9
+8.7
10
+8.1
15
+5.5
20
+3.8
25
+2.4
30
+1.3
Note: The above levels are for Analog Narrowband FM. For CDMA, TDMA, GSM
Signals the levels must be typically 3 to 5 dB lower than those shown. Consult Kaval
Wireless Technologies for further information.
(effective IP3 per Antenna = +33dBm)
Total Power
Number of
per Antenna
Carriers
Port (dBm)
+21.7
2
+20.7
3
+20.0
4
+19.5
5
+19.1
6
+18.8
7
+18.5
8
+18.3
9
+18.1
10
+17.3
15
+16.8
20
+16.4
25
+16.1
30
Revision Date:6/19/03
DCM000000052
1.9 GHz PCS
Power per
Total Power
Carrier per
per Antenna
Antenna
Port (dBm)
Port (dBm)
+17.4
+20.4
+14.6
+19.4
+12.7
+18.7
+11.2
+18.2
+10.0
+17.8
+9.0
+17.5
+8.2
+17.2
+7.4
+16.9
+6.7
+16.7
+4.2
+16.0
+2.4
+15.4
+1.1
+15.1
0.0
+14.8
12
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