44
All cables will attenuate the signals to the antenna to some degree. For short runs the
attenuation/loss will be insignificant with any good RF rated cable, but if longer cables are
needed, a special low-loss cable should be used. Low loss RF cable materials are typically
thicker and less flexible than the standard cables.
RF cables must be carefully installed. Overly tight bends will increase attenuation, as will
excessive numbers of bends. Excessive compression of the cable will also add attenuation, so
cable ties should be used carefully.
Attenuation and bend specifications for CTI RF cables are given in the table below:
Cable Type
Attenuation, dB per
100ft/ 30.48M
Minimum Radius,
Single Bend
Minimum Radius,
Multiple Bends
Number of
Bends Max
CTI 5638 N to
RSMA Adapter
19
.5"/12.7mm
2"/50.8mm
Not rated
LMR-195-DB 19 .5"/12.7mm
2"/50.8mm
Not
rated
LMR-400-UF 6.8 1"/25.4mm
4"/101.6mm
Not
rated
Andrew FSJ-50
6.78
1"/25.4mm
1"/101.6mm
30
