Motorola BLE100 Installation And Operation Manual page 25

3-4 Amplifier Setup
The slope of the required equalizer is 15 dB. Table 3-1 and Figure 3-1 show that 15 dB of slope
is caused by approximately 20 dB of cable at 1003 MHz. Therefore the correct equalizer is model
SFE-100-20.
When selecting an equalizer, choose the next lower value if the exact value is not available or in
cases where the calculated value makes two choices possible.
Table 3-1 helps you choose the correct equalizers and also lists insertion loss at various
frequencies:
Table 3-1
Starline Forward Equalizers – SFE-100-*
Equalizer Equalizer
Value Slope
SFE-100-*
22 16.7
20 15.2
18 13.7
16
12.1
14 10.6
12 9.1
10 7.6
8 6.1
6
4.6
4 3.0
2 1.5
BLE100 Installation and Operation Manual
Frequency (MHz) versus Insertion Loss (dB)
50 200 300
17.7 12.4 10.0
16.2 11.4 9.2
14.7 10.3 8.4
13.1 9.3 7.6
11.6 8.2 6.7
10.1 7.2 5.9
8.6 6.2 5.1
7.1 5.1 4.3
5.6 4.1 3.5
4.0 3.1 2.6
2.5 2.0 1.8
450 550 650
7.1 5.4 3.9
6.5 5.0 3.6
6.0 4.6 3.4
5.4 4.2 3.1
4.9 3.8 2.8
4.3 3.4 2.6
3.8 3.0 2.3
3.2 2.6 2.0
2.7 2.2 1.8
2.1 1.8 1.5
1.6 1.4 1.3
750 870 1003
2.5 1.0 1.3
2.3 1.0 1.3
2.2 1.0 1.3
2.1 1.0 1.3
1.9 1.0 1.3
1.8 1.0 1.3
1.7 1.0 1.3
1.5 1.0 1.3
1.4 1.0 1.3
1.3 1.0 1.3
1.1 1.0 1.3