SatelLink
z
USER MANUAL
DCM000000052
Printed: 03.06.19,16:02
Revision Date:6/19/03
12
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)
1.9 GHz PCS
(effective IP3 per Antenna = +33dBm)
Number of
Carriers
Power per
Carrier per
Antenna
Port (dBm)
Total Power
per Antenna
Port (dBm)
Number of
Carriers
Power per
Carrier per
Antenna
Port (dBm)
Total Power
per Antenna
Port (dBm)
2 +18.7
+21.7 2 +17.4
+20.4
3 +16.0
+20.7 3 +14.6
+19.4
4 +14.0
+20.0 4 +12.7
+18.7
5 +12.5
+19.5 5 +11.2
+18.2
6 +11.3
+19.1 6 +10.0
+17.8
7 +10.3
+18.8 7 +9.0
+17.5
8 +9.5
+18.5 8 +8.2
+17.2
9 +8.7
+18.3 9 +7.4
+16.9
10 +8.1
+18.1 10 +6.7
+16.7
15 +5.5
+17.3 15 +4.2
+16.0
20 +3.8
+16.8 20 +2.4
+15.4
25 +2.4
+16.4 25 +1.1
+15.1
30 +1.3
+16.1 30 0.0 +14.8
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.
Remote Module Per-
Carrier De-Rating
