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Home / Avionics / Antennas / Comant /Comant Transponder Antenna Ci 101
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Comant Transponder Antenna Ci 101

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Part# 11-17970
MFR Model# CI-101

Overview

Frequencies Covered
1030-1090 MHz

Transponder antenna with top loaded stub monopole. Antenna radiator is mechanically captivated and is machined from solid brass for impact resistance. Contact points are made from beryllium copper. Metallic parts are plated with bright nickel for corrosion protection. Mounts through a single 0.600” diameter mounting hole.

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

Applications
Single and twin engine piston aircraft for applications of this antenna design. Consult your FBO or installation shop for best application information

Specifications

MODEL CI 101 TRANSPONDER
Electrical
Frequency
1030 to 1090 MHz

VSWR
1.5:1 1030 MHz
Polarization
Vertical
Radiation Pattern
Equivalent of 1/ 4 wave stub typical
Impedance RF
50 Ohms
Resistance DC
Open Circuit
Power RF
1.0 KW Peak
Mechanical
Weight

0.06 lb. Maximum
Height
3.33 in. Maximum
Finish
Tin-Nickel Alloy
Environmental
Temperature
-54ºC to +55ºC
Altitude
30,000 ft.
Air Speed
300 Knots TAS
Federal Specification
RTCA Environmental
DO-138
FAA TSO
C74c
RTCA MOPS
DO-144
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Q&A

Please note, Aircraft Spruce'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. Aircraft Spruce 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: Is this antennae compatible for the Garmin GDL 82 ADS B unit?

Per the installation manual, This antenna is not on the recommended antenna list. Please view antenna CI-105, P/N: 11-17965

Q: Is this Comant CI 101 antenna compatible with a King KT76A transponder?

Yes, this antenna can work.

Q: Will this COMANT CI 101 ANTENNA work with a GTX 327?

Yes, this is capable of functioning with that transponder.

Q: What MHZ is it operating on? Need 1090ES

This antenna goes to 1090 but is not advisable for 1090es. Please see part # 11-17965 for recommended antenna.

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