RF interference
98-146706-A
Appendix B: Ground and RF protection
B-13
Grou
nd
and
RF
3. Seal the joint with protective coating to avoid corrosion.
B.7
RF interference
Interference induced from nearby high-power RF transmitters might cause system failures
and in extreme cases permanent damage to the SAILOR 900 Ka equipment.
If there are problems with interference from HF transmitters, do as follows:
1. 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.
2. Use 1-5 pcs. hinged clamp cores (e.g. the RFC or SFC series from Kitagawa) mounted on
the ADU cable near the ADU.
Figure B-8: ADU isolation and grounding cable
Isolating shoulder bush
Plain washer (stainless steel)
Spring washer (stainless steel)
Plain washer (stainless steel)
Serrated washer (stainless steel)
Ground cable
Ground cable
SAILOR900Ka-IM-98-146706.book Page 13 Thursday, July 16, 2015 11:07 AM
