Can someone please provide some advice on what I should do with respect to mounting my transponder and ADS-B antennae?
I’ve read the forum post on the Jim Weir EAA article and the Skyview installation manual.
I have a flying Velocity that I am doing a complete rewire because I am installing a Dynon Skyview system. Since the airplane is already completed I cannot get too creative with installing antennas in the wings or wing tips and some of the installations so in some instances I am stuck with what I got.
The airplane has existing antennae mounted in the wings for VHF NAV and COM and it also has a single transponder monopole antenna mounted on the copilot side aft floorboard (under the rear seat). This antenna is mounted in a way that the antenna is mounted to the bottom of the airplane (sticking strait down) and the connector end of the antenna sticks up through the fuselage floor and it is mounted to the corner of an egg shaped ground plane (why they used egg shape instead of square/rectangle I do not know…perhaps a scrap piece of metal was laying around or is it due to not wanting to precisely cut out the ground plane in precisely the wrong shape). Attached is a PDF showing a picture.
I have installed a radio rack in the copilot side of the nose compartment directly on top of the canard. I need to try to avoid locating the antenna up front because on the pilot side of the nose compartment is the ADHRS units and they have the magnetometer.
The SV manual transponder section does not address anything about the ADSB antenna. The ADSB section does state to not install the antenna within 24 inches of the transponder antenna.
Should the monopole antenna be installed in the middle of the ground plane or on the edge/corner (no guidance from the manuals)?
Should the ground plane be grounded to the aircraft engine?
What are the intervals that the transponder ground plane should be?
120 MM X 120 MM is minimum
700 MM X 700 MM is too big for my airplane.
What are the intermediate steps that are best and what should be avoided?
What are the intervals that the ADSB ground plane should be?
130 MM X 130 MM is minimum
780 MM X 780 MM is too big for my airplane
What are the intermediate steps that are best and what should be avoided?
Any advice would be GREATLY APPRECIATED!!!
I’ve read the forum post on the Jim Weir EAA article and the Skyview installation manual.
I have a flying Velocity that I am doing a complete rewire because I am installing a Dynon Skyview system. Since the airplane is already completed I cannot get too creative with installing antennas in the wings or wing tips and some of the installations so in some instances I am stuck with what I got.
The airplane has existing antennae mounted in the wings for VHF NAV and COM and it also has a single transponder monopole antenna mounted on the copilot side aft floorboard (under the rear seat). This antenna is mounted in a way that the antenna is mounted to the bottom of the airplane (sticking strait down) and the connector end of the antenna sticks up through the fuselage floor and it is mounted to the corner of an egg shaped ground plane (why they used egg shape instead of square/rectangle I do not know…perhaps a scrap piece of metal was laying around or is it due to not wanting to precisely cut out the ground plane in precisely the wrong shape). Attached is a PDF showing a picture.
I have installed a radio rack in the copilot side of the nose compartment directly on top of the canard. I need to try to avoid locating the antenna up front because on the pilot side of the nose compartment is the ADHRS units and they have the magnetometer.
The SV manual transponder section does not address anything about the ADSB antenna. The ADSB section does state to not install the antenna within 24 inches of the transponder antenna.
Should the monopole antenna be installed in the middle of the ground plane or on the edge/corner (no guidance from the manuals)?
Should the ground plane be grounded to the aircraft engine?
What are the intervals that the transponder ground plane should be?
120 MM X 120 MM is minimum
700 MM X 700 MM is too big for my airplane.
What are the intermediate steps that are best and what should be avoided?
What are the intervals that the ADSB ground plane should be?
130 MM X 130 MM is minimum
780 MM X 780 MM is too big for my airplane
What are the intermediate steps that are best and what should be avoided?
Any advice would be GREATLY APPRECIATED!!!