Antennas: Difference between revisions

Revision as of 05:00, 6 July 2022


Garmin GPS antenna for G3X	GA56 (BNC connector) (not included with G3X)
Garmin GPS antenna for certified GPSs (GTN650, GNX,...)	GA35 (TNC screw-on connector) (GPS price might include antenna or not, check with vendor, Sarasota includes it)
Transponder / ADS-B antenna	Comant CI-E05 (experimental version)
VHF top antenna (works better for ground communications)	Comant CI-E21 (experimental version)
VHF bottom antenna (works well when airborne but not necessarily on ground)	Comant CE-E22 (experimental version)
MB antenna	Rami AV-64
VOR/GS antenna	Archer VOR ANT LT Model 1 (different order number for left and right, please check)
ELT antenna	(whatever comes with your ELT)

Example of Bob Archer NAV / Glideslope Antenna mounted in aftermarket Aveo ZipTip.

Frequency plot of Bob Archer antenna (shows 50 Ohm and resonance in the VOR/LOC frequency range of 108-118 MHz):

ELT antenna installation is governed by 14 CFR § 91.207 and AC 91-44A: It asks for:
- "Proper installation" (which means you need to follow the installation instruction from the ELT manufacturer)
- "The presence of a sufficient signal radiated from its antenna" (annual test).
- The antenna to be vertically mounted
You may install the antenna inside the airplane if
- The airplane skin is non conductive (the RV-10 fiberglass canopy area should be fine) or the antenna is centered behind a window of at least 12 x 12 inch size
- You provide a ground plane for it (24 inches radius for 121 MHz!)

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 **[https://www.eaa.org/Videos/Hints-for-Homebuilders/Electrical/38486239001 Antenna Coax Connectors 2]
 **[https://www.eaa.org/videos/77829561001 ELT Installation]
+* Doubler Plates
+** [https://www.steinair.com/product/ga-35-gps-antenna-doubler/ GA 35 GPS Antenna Doubler]
+** [https://www.steinair.com/product/bent-whip-com-antenna-doubler/ Comant CI-121 Bent Whip Antenna Doubler]
 === Antennas ===