S&C Instruction Sheet 1074-510
13
Description
Table 4. Antenna/Cable Loss Examples with LMR-600 Cable
①
Antenna Gain
Length/Loss
ERP
+8 .2 dBi
90 feet/2 .3 dB loss
+36 .0 dBm
+10 .2 dBi
170 feet/4 .3 dB loss
+36 .0 dBm
+12 .1 dBi
245 feet/6 .1 dB loss
+36 .0 dBm
①
Assuming 1-watt output power from the SpeedNet ME Radio .
Table 5. Antenna Cable Loss Examples with LMR-900 Cable
①
Antenna Gain
Length/Loss
ERP
+8 .2 dBi
135 feet/2 .3 dB loss
+35 .9 dBm
+10 .2 dBi
250 feet/4 .3 dB loss
+36 .0 dBm
+12 .1 dBi
310 feet/5 .3 dB loss
+35 .9 dBm
①
Assuming 1-watt output power from the SpeedNet ME Radio .
If you are using a different type of cable, verify cable loss prior to installation.
Table 6. Attenuation Chart
Nominal Attenuation Frequency in MHz dB/100ft
Cable Type
10MHz
30MHz
50MHz
150MHz
220MHz
450MHz
900MHz
1.2GHz
2.4GHz
100 Series
2 .3
3 .9
5 .1
8 .9
10 .9
15 .8
22 .8
26 .7
38 .9
195 Series
1 .1
2 .0
2 .5
4 .4
5 .4
7 .8
11 .1
12 .9
18 .6
240 Series
0 .8
1 .3
1 .7
3 .0
3 .7
5 .3
7 .6
8 .8
12 .7
400 Series
0 .4
0 .7
0 .9
1 .5
1 .9
2 .7
3 .9
4 .5
6 .6
600 Series
0 .2
0 .4
0 .5
1 .0
1 .2
1 .7
2 .5
2 .9
4 .3
LMR-400-UF
0 .5
0 .8
1 .1
1 .8
2 .2
3 .3
4 .7
5 .5
7 .9
RG142/U
RG213/U
0 .6
1 .2
1 .5
2 .8
x
5 .2
7 .3
x
x
RG214/U
0 .6
0 .9
1 .3
2 .3
x
4 .5
7 .3
x
x
RG223/U
1 .2
2 .0
2 .8
5 .0
x
9 .8
13 .4
x
x
RG316/U
RG393/U
RG58A/U
1 .5
2 .6
3 .3
6 .8
x
12 .6
21 .0
x
x
RG8/U
(CXP1318FX)
0 .5
0 .8
1 .1
1 .8
2 .2
3 .3
4 .7
5 .5
7 .9
RG8X-Mini
1 .0
2 .0
2 .3
4 .7
x
8 .6
13 .0
x
x