User's Manual

In-Hancer Plus BDA
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DCM000000105
There are two requirements for the de-rating of RF Carriers in a multiple channel
environment; one 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.
Carrier De-Rating
The second requirement is de-rating to maintain the integrity of complex digital
communications signals.
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.
The figures shown are to the nearest dB, and are for the 800-900MHz In-
Hancer Plus BDA's. For UHF Models a further de-rating of 2dB is required.
FM Carriers (output levels)
(for 800-900MHz; de-rate by -1 to -2 dB for UHF)
Complex Carriers (output levels)
(CDMA, GSM, iDEN, etc)
(for 800-900MHz; de-rate by -1 to -2dB for UHF)
Number of
Carriers
Power per
Carrier
(dBm)
Total Power
(dBm)
Number of
Carriers
Power per
Carrier
(dBm)
Total Power
(dBm)
1 +37 +37 1 +27 +27
2 +26 +29 2 +21 +24
3 +23 +28 3 +18 +23
4 +21 +27 4 +16 +22
5 +19 +26 5 +14 +21
6 +18 +26 6 +13 +21
7 +17 +25 7 +12 +20
8 +16 +25 8 +11 +20
9 +15 +25 9 +10 +20
10 +14 +24 10 +9 +19
15 +12 +24 15 +7 +19
20 +10 +23 20 +5 +18
25 +9 +23 25 +4 +18
30 +8 +22 30 +3 +17
Maintaining the above composite output power levels may be accomplished by
setting both Gain and AGC Levels appropriately.
Consult Kaval Wireless Technologies for further information.
Printed: 03.10.14,09:37
Revision Date:10/14/03
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