Comant Comdat Antenna CI-2480-201

Add to Wishlist
Part# 11-05849
MFR Model# CI-2480-201


Frequency • 1575.42 MHz 17.0dB Gain 118 - 137 MHz VHF
The design that stated a revolution in multifunction antennas for general aviation. Combines both GPS and VHF Com functions in a single footprint. Same 4-hole mounting configuration as our popular CI 121 VHF and CI 420 GPS antennas. Separate connectors for GPS and VHF, GPS is protected from VHF harmonics with our exclusive built-in 80dB harmonic suppression filter.

The CI 2480-201 GPS function is designed for use withGarmin’s™ panel mount GPS systems that require 17dB gain. The CI 2480-201 is standard equipment on many aircraft OEMs including Robinson Helicopter, Cessna, Mooney and Piper.

Note: Comant Antennas no longer come with a gasket or template. Must order PN 09-05579 separately.

California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Frequency: 118-137 MHz
  • VSWR: 2.5:1
  • Polarization: Vertical
  • Radiation Pattern: Omnidirectional
  • Impedance: 50 Ohms
  • Power Rating: 50 Watts
  • Frequency: 1575.42 MHz
  • VSWR: 2.0:1
  • Polarization: RHCP
  • Radiation Pattern: Hemispherical
  • Impedance: 50 Ohms Output (Nominal)
  • Gain @ 1575.42 MHz: 17.0dB
  • DC Voltage: 4 to 24 vdc
  • DC Current: 50mA Maximum
  • Noise Figure: 2.0dB Min / 3.8dB Maximum
  • Selectivity: -35dB Minimum @ 1626.50 MHz
  • Speed / Altitude: Single Engine Only
  • RTCA Environmental / TSO: DO-160D / C129a, C37d, C38d
  • Environmental Category: [F2X]ACB[S(L)U(F,F1)T(C,C1R)XR FXXSXXXXXXXX[XX]C
  • Connector: TNC - GPS / BNC - VHF
  • Color: White


  • Frequently Purchased With
  • Customers Also Viewed
  • Related Items


good deal

Karl R Verified Purchase


January 28, 2022


Please note,'s personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Does antenna have the offset connector on the base or is it centered

For both the Comant CI2480200 and the CI2480201, the connectors are centered. Detailed diagrams are listed in the documents tab.

Q: Can I use the Comdat Antenna CI-2480-201 with the Garmin GNS 420W?

Per Garmin, The Comdat Antenna CI-2480-201 is not on the approved Antenna list for the GNS420W. Per Garmin, the antennas certified for use are the Garmin GA 35, GA 36 or GA 37.

Q: Whats the footprint of the Comant CI-2480-201?

We have added the footprint to the "Document" tab to this web page. Please review it there.

Q: Does this Comant CI-2480-201 antenna receive WAAS signal? Can it be used with Garmin GTN 650?

No the WAAS version of this antenna for the GTN 650 is part # 11-11545.

Q: Would this Comant CI-2480-201 antenna work with a Garmin 430 non waas gps?

Yes, this antenna will work with the GNS 430.

Q: Does the Comant CI-2480-201 antenna works with a old Garmin 250xl (initialy connected with a GA56 antenna)? Thanks !

Yes, it can work in that application.

Q: Does this CI-2480-201 antenna work with the G3X touch?

Yes, this will work with a panel mounted Garmin GPS and a G3X.