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Home / Avionics / Antennas / Comant /Comant VOR/Loc/GS Antenna CI-158C
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Comant VOR/Loc/GS Antenna CI-158C

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$446.00/Each
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Part# 11-17923
MFR Model# CI-158C

Overview

Frequency • 108-118 MHz (VOR/LOC)
329-335 MHz (GS)


“V” Dipole VOR/LOC/GS antenna with detachable elements mounts on top of the vertical fin stabilizer for most single engine general aviation aircraft. RF design similar to the CI 157P. Integral ferrite balun provides for higher radiation efficiency. Detachable elements result in a significantly smaller shipping and storage carton than fixed element versions.

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

Not approved for helicopter installations.

Applications
Single engine piston aircraft for applications of this antenna design. Consult your FBO or installation shop for best application information.
   
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Specifications

MODEL CI 158C-2 V- DIPOLE
Electrical
Frequency

108-118 MHz (VOR/ LOC)

329-335 MHz (Glide Slope)
VSWR

3.0:1 108-118 MHz (VOR/ LOC)

3.0:1 329-335 MHZ(Glide Slope)
Polarization
Horizontal
Radiation Pattern
Dipole
Impedance
50 Ohms Nominal
Power
Receive Only
Mechanical
Weight
0.35 lb. Maximum
Height
17-5/8 in. Maximum
Material
Derlin Housing/ Stainless Whips
Finish
Black Housing/ Stainless Whips
Connector
BNC
Environmental
Temperature
-55ºC to +85ºC
Altitude
50,000ft.
Air speed
250 Knots TAS @ 25,000 ft
Federal Specifications
RTCA Environmental
DO-160
FAA TSO
C34e, C38e, C40c
RTCA MOPS
DO-192, DO-195, DO-196
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Reviews

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Works fine

Gwen
March 17, 2018

Q&A

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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: On the Comant CI-158C can the two detachable whips be mounted separately in aircraft fuselage?

No, this antenna must remain as one piece and cannot be separated for use. Detachable elements result only for smaller shipping and storage carton than fixed element versions.

Q: I see the whisker vor/loc/gs mounted on the bottom of the fuselage on RV aircraft. Does it matter if the BNC connector is on the top or bottom?

The BNC connector can be on either side.

Q: How do the whips detach? Do they screw in? If so, is this a standard fitting common to other antennas of this type? Thanks.

No, they do not screw in. The whips attach with a self-locking set screw.

Q: How long are the whips on the Comant CI-158C?

17-5/8 each.

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