Various Types of Aircraft Antenna Components

Aircraft use a wide range of radio frequencies to navigate to their destinations and communicate with ATC and other aircraft. To do so successfully, onboard radio equipment use antennas of various types and sizes, each one designed for a specific frequency band.

Communication antennas connect to the radio transmitters onboard the aircraft, they are mounted on the top or bottom of the fuselage, but both places are vulnerable to shadowing from the aircraft’s body. Shadowing occurs when the aircraft’s structure blocks the transmitting path of the antenna, interfering with the signal. Some aircraft mount an antenna on both the top and bottom of the fuselage and use the top antenna to communicate while on the ground, and the bottom antenna to communicate while flying.

GPS antennas communicate with satellites overhead to help locate the aircraft. However, the GPS transmission is often very weak, so GPS antennas usually have built-in amplifiers to boost the signal. The GPS signal also travels line-of-sight, and is very vulnerable to airframe shadowing, making it essential that the GPS antenna be mounted at the very top of the fuselage. Comms antennas can also interfere with a GPS antenna’s signal, so it is necessary to mount the two as far away as possible.

The navigation (or simply nav) antenna is mounted on the vertical tail in almost all aircraft. Nav antenna come in three types: cat whisker, dual blade, and towel bar. A single nav antenna feeds both nav receivers; therefore, a failure in the nav antenna would cause both systems to fail.

The navigation (or simply nav) antenna is mounted on the vertical tail in almost all aircraft. Nav antennas come in three types: cat whisker, dual blade, and towel bar. A single nav antenna feeds both nav receivers; therefore, a failure in the nav antenna would cause both systems to fail. Like all parts of an aircraft, antennas require inspection and maintenance. If an antenna is cracked or its paint wears off, water can enter and cause delamination, where the composite layers of the antenna begin to separate. If this happens, the antenna can be rendered useless. Proper mounting is also important, both to ensure that the antenna does not get torn off during flight, and to ensure that it is electrically grounded to the aircraft.

At NSN Parts Now, owned and operated by ASAP Semiconductor, we sell antenna parts and systems from high-quality manufacturers like Comant, Rami, Harris (D&M/Edo), and AeroAntenna Technology.

Part No Manufacturer Description QTY RFQ
S65-8282-34 sensor systems vhf/uhf am/fm antenna Avl RFQ
S65-8282-30 sensor systems vhf am/fm antenna Avl RFQ
S65-8280-10 sensor systems vhf antenna Avl RFQ
K220A icom com whip antenna with magnetic mount Avl RFQ
DMNI70-2 harris (d&m/edo) dme/atc transponder antenna Avl RFQ
DMNI70-1 harris (d&m/edo) dme/atc transponder antenna Avl RFQ
DMNI50-6-2 harris (d&m/edo) navigation antenna Avl RFQ
DMNI50-4-2 harris (d&m/edo) navigation antenna Avl RFQ
DMNI50-3-2 harris (d&m/edo) navigation antenna Avl RFQ
DMNI50-2-2 harris (d&m/edo) navigation antenna Avl RFQ
DMNI50-10-2 harris (d&m/edo) navigation antenna Avl RFQ
DMN48-1 harris (d&m/edo) vor/loc balanced loop antenna Avl RFQ
DMN43-4 harris (d&m/edo) navigation antenna Avl RFQ
DMN43-1 harris (d&m/edo) navigation antenna Avl RFQ
DMN42-1 harris (d&m/edo) vor/loc loop antenna Avl RFQ
DMN41-1 harris (d&m/edo) glide slope antenna Avl RFQ
DMN4-45 harris (d&m/edo) vor/loc antenna Avl RFQ
DMN4-4 harris (d&m/edo) navigation antenna Avl RFQ
DMN4-17R harris (d&m/edo) vor/loc glide slope antenna Avl RFQ
DMN4-17P harris (d&m/edo) vor/loc glide slope antenna Avl RFQ
DMN4-17N harris (d&m/edo) vor/loc glide slope antenna Avl RFQ
DMN4-15 harris (d&m/edo) low drag, vor/loc balanced loop navigation antenn Avl RFQ
DMN27-3 harris (d&m/edo) marker beacon antenna Avl RFQ
DMN25-3 harris (d&m/edo) glide slope antenna Avl RFQ
DMN25-1 harris (d&m/edo) glide slope antenna Avl RFQ
DMC70-9 harris (d&m/edo) vhf 360/720 channel broadband antenna Avl RFQ
DMC70-6 harris (d&m/edo) vhf 360/720 channel broadband antenna Avl RFQ
DMC70-4 harris (d&m/edo) vhf 360/720 channel broadband antenna Avl RFQ
DMC70-3 harris (d&m/edo) vhf 360/720 channel broadband antenna Avl RFQ
DMC70-1A harris (d&m/edo) vhf 360/720 channel broadband antenna Avl RFQ
DMC63-4A harris (d&m/edo) vhf antenna Avl RFQ
DMC63-3A harris (d&m/edo) vhf antenna Avl RFQ
DMC63-2 harris (d&m/edo) vhf antenna Avl RFQ
DMC63-1A harris (d&m/edo) vhf antenna Avl RFQ
DMC60-1 harris (d&m/edo) vhf communications antenna Avl RFQ
DMC50-1 harris (d&m/edo) vhf communications antenna Avl RFQ
CI5120 comant splitter dual vor/loc/gs Avl RFQ
CI509 comant coupler marker beacon Avl RFQ
CI507 comant diplexer vor/glide slope Avl RFQ
CI505 comant diplexer dual vor glide slope Avl RFQ
CI503 comant dual glideslope coupler Avl RFQ
CI502 comant diplexer/dual vor or dual marker Avl RFQ
CI490-490 comant single channel iridium satcom antenna Avl RFQ
CI429-410 comant comdat waas gps/xm antenna Avl RFQ
CI429-200 comant comdat waas gps antenna Avl RFQ
CI428-410 comant comdat gps waas/xm antenna Avl RFQ
CI428-200 comant comdat gps waas antenna Avl RFQ
CI420-420 comant comdat gps/xm Avl RFQ
CI420-230 comant comdat gps antenna Avl RFQ
CI420-221 comant comdat gps antenna Avl RFQ
CI420-220 comant comdat gps/xm antenna Avl RFQ
CI420-16 comant comdat antenna - xm Avl RFQ
CI420-10 comant comdat antenna - xm Avl RFQ
CI420-1 comant comdat antenna - xm Avl RFQ
CI419-200 comant comdat waas gps antenna Avl RFQ
CI408-20 comant comdat antenna - gps Avl RFQ
CI401-490 comant iridium arinc antenna Avl RFQ
CI401-460 comant comdat satellite radio/gps antenna Avl RFQ
CI401-221 comant comdat gps antenna Avl RFQ
CI401-220 comant gps antenna Avl RFQ
CI401 comant gps antenna Avl RFQ
CI310-22 comant uhf antenna - radiotelelphone Avl RFQ
CI310-20 comant uhf antenna - radiotelelphone Avl RFQ
CI310 comant uhf radiotelephone antenna Avl RFQ
CI306 comant uhf radiotelephone antenna Avl RFQ
CI305 comant dme/transponder antenna Avl RFQ
CI292-4 comant fm/2 meter extended band antenna Avl RFQ
CI292-3 comant fm/2 meter extended band antenna Avl RFQ
CI292-2 comant vhf antenna Avl RFQ
CI292-1 comant vhf antenna Avl RFQ
CI291 comant vhf antenna Avl RFQ
CI285 comant uhf radiotelephone antenna Avl RFQ
CI275-5 comant uhf antenna - radiotelelphone Avl RFQ
CI275-2 comant uhf antenna - radiotelelphone Avl RFQ
CI275 comant uhf radiotelephone antenna Avl RFQ
CI273 comant uhf radiotelephone Avl RFQ
CI2728-410 comant comdat vhf/gps waas/xm antenna Avl RFQ
CI271 comant uhf radiotelephone antenna Avl RFQ
CI2680-300 comant comdat gps/vhf/orbcomm antenna Avl RFQ
CI2680-216 comant comdat sat-ent/vhf antenna Avl RFQ
CI2680-205 comant comdat wsi-wx/vhf antenna Avl RFQ
CI2680-200 comant comdat gps/vhf antenna Avl RFQ
CI2680-104 comant comdat gps/orbcomm antenna Avl RFQ
CI2680-100 comant comdat gps/orbcomm antenna Avl RFQ
CI268-10 comant comdat data link antenna Avl RFQ
CI259E comant vor/gs antenna Avl RFQ
CI2580-200 comant comdat vhf/gps waas antenna Avl RFQ
CI2480-300 comant comdat vhf/gps/orbcomm antenna Avl RFQ
CI2480-216 comant comdat antenna vhf/xm Avl RFQ
CI2480-204 comant comdat gps/vhf combination antenna Avl RFQ

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