Rf Interference; Electrostatic Discharge - KVH Industries FleetBroadband FB250 Installation Manual

Appendix C: Grounding and RF protection
C.10 RF interference
Interference induced from nearby RF transmitters might cause system failures
and in extreme cases permanent damage to the TracPhone equipment. If there
are problems with interference from HF transmitters, it is advisable to mount
ferrite clamps on the coax cable in order to provide suppression of induced RF.
The ferrites will have no effect on the differential-mode signals but increases
the impedance in relation to common-mode RFI.
C.10.1 Recommendations
Use 1-5 pcs. hinged clamp cores (e.g. the RFC or SFC series from Kitagawa)
mounted on the antenna cable near the antenna.
C.11 Electrostatic Discharge
In addition to the RFI attenuation, mounting ferrite clamps on the antenna
cable will also slow the fast rate-of-rise of an electrostatic discharge current
pulse. This might be an issue during installation (antenna cable disconnected)
where different electrical potentials have had the chance to build up between
the terminal and antenna.
We recommend mounting 1-5 pcs. hinged clamp cores (e.g. the RFC or SFC
series from Kitagawa) on the antenna cable near the antenna.
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RF interference