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DATA SHEET

Model 14A-N and 14A-TNC Half-Wave Quadrafilar Helix Antennas

Right-Hand Circular Polarization

 

The Model 14A is a hemispherically omni-directional antenna for use with mobile satellite platforms, ARGOS platforms, NOAA A-H platforms, Radiosonde receivers, and Transit Navigation receivers.

 

The 14A is a lightweight, resonant, half-wave Quadrafilar Helix antenna phased for right-hand circular polarization. Coverage is approximately hemispheric with a maximum gain of 3 dBic at zenith. The Synergetics MICRO-FEED is used for matching, resulting in superior axial ratio, SWR, and bandwidth.

 

The sealed radome for the 14A is constructed of G-10 fiberglass with a white two-part polyurethane paint finish for long life under hostile atmospheric conditions.

 

SPECIFICATIONS

Electrical

bullet Frequency                                                             401 MHz                                                Nominal
bullet Bandwidth                                                             4 MHz                                                    Minimum
bulletInput Power                                                          50 Watts                                                Maximum
bulletSWR                                                                       1.5                                                           Maximum
bulletAxial Ratio                                                             5 dB                                                        Maximum
bullet Gain                                                                        3 dBic                                                     Minimum
bullet Polarization                                                           Right-Hand Circular
bullet½ Power Beamwidth                                            160˚                                                         Nominal
 
bullet Connector                                                             TNC Bulkhead Jack or Type N Jack

Environmental

bullet Wind                                                                      100 knots
bulletIce and Snow                                                        100 lbs/ft2
bullet Rain                                                                        5”/hour
bullet Temperature                                                          -65˚ C to +65˚ C
bulletRelative Humidity                                                0 – 200%
 
bullet Altitude                                                                 -1,000 to +15,000 feet MSL
 

Mechanical

bullet Mounting                                                              4 ¼” flange with 6 evenly spaced holes on 3 5/8”

                                                                                                diameter bore center for ¼” bolts

bullet Weight                                                                   1.3 lbs.                                                    Maximum
bullet Size                                                                         3.0” diameter x 15.0” length plus 4 ¼” base flange

and connector

bullet Effective wind area                                              0.25 ft 2

Ordering Information

bullet Packaging                                                              Boxed in heavy-duty cartons.
bulletShipping weight                                                   3 lbs.
bulletShipping size                                                        18” H x 6” W x 6” D

 

                                                  SYNERGETICS INTERNATIONAL

600 Oak Avenue ּ Eaton, Colorado ּ 80615 ּ (970) 454-2291 ּ  FAX (970) 454-3491

 

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Contact Information

Telephone
970-454-2291 Toll Free 800-227-1702
FAX
970-454-3491
Postal address
600 Oak Ave.Eaton Colorado 80615 USA
Electronic mail
General Information: sales@harshelectronics.com
Sales:sales@harshelectronics.com
Customer Support: techsupport@harshelectronics.com
Send mail to cburgess@harshelectronics.com with questions or comments about this web site.