Most recent work has been researching and considering antenna placement in order to meet all specifications for antenna separation to eliminate/minimize RF interference. After researching all applicable instalation documentation sources, I've sumarized the following antenna requirements and recommendations for antenna locations:
Antenna Positioning Suggestions & Requirements:
SV-GPS-2020(WAAS) ADS-B Out Compliant GPS Antenna (Puck): Center to aft on the glareshield, or externally on the top of the turtledeck. Unobstructed view of the sky in normal flight. Reasonably level. >3 feet from transmitting antennas. >2 feet from COM antenna.
ACK E-04 406 ELT Antenna (Whip): Top of turtledeck, just forward of the vertical stabilizer. +/- 35 degrees of vertical. External. Close to ELT. Cable not near COM coax. >3 feet from COM Antenna.
SV-COM-X25 COM Antenna (Bent Whip): Top of turtledeck, just aft of the canopy trailing edge. >2 feet from second COM antenna. >4 feet from ADF antenna. >4 feet (>6 feet recommended) from ELT antenna. Away from displays, modules and/or servos to eliminate RF interference. Shortest coax run possible.
SV-XPNDER-261 Transponder (Blade): Bottom of fuselage. >3 feet from ADF sense or any COM antenna. >6 feet from DME antenna. Shortest coax run possible.
SV-ADSB-472 ADS-B Traffic & Weather Antenna (Blade): Bottom of fuselage. >2 feet from Transponder antenna. Shortest coax run possible.
After careful location consideration, I believe the five antenna positions depicted in the dual view antenna location diagram show all antennas in a location that best satifies the requirements and recommendations for resucing any operational RF interference. The only questionable concern is whether the auto pilot servos will cause any appreciable interference with the transponder and ADS-B Receiver antennas. This will be discussed with Advanced Flight Systems before permanently mounting the two blade antennas.
I also did a position check for mounting the ELT under
Dual view diagram showing all five antenna placements to meet separation requirements.
Transponder and ADS-B/Weather Receive blade antenna positions under seat pan.
ELT mounting position under the vertical stabilizer.
