Description

The 02680S2 antenna is a 3dB Gain, two stack Stainless Steel Side Mount Dipole Array antenna, for use in the UHF Commercial Radio Band. This array is capable of covering the entire 400-520 MHz Radio Communications band and can be used in various spacing from the vertical mounting boom to achieve a desired H plane radiation pattern coverage.

The robust construction ensures excellent longevity and performance. The all Stainless Steel construction is ideally suited for the weather and corrosion resistance. All mechanical connections are welded for minimum inter-modulation levels. All electrical connections are directly soldered. The 02680S2 antenna offers stable radiation patterns across the entire bandwidth.  

Applications

• Multi-coupled Transmitter/Receiver Applications.

Construction

• Stainless Steel mounting boom. 

• Folded Stainless Steel Dipole.

• RG 213 cable Tails with N Socket.

• Cable Phasing Harness.

Installation Dimensions

Pattern	Frequency (MHz)	Mast Spacing (m)	Dipole Spacing (m)	Dimension A (m)
1/4 Wave	400-520	0.163	0.520	0.260
1/2 Wave	400-520	0.326	0.520	0.260
1 Wave	400-520	0.652	0.520	0.260

Specifications

Electrical - Quarter Wavelength Spacing from Vertical Boom

Model Frequency MHz Gain (dBD) Tuned Bandwidth Operating VSWR Input Impedance Vertical Beamwidth Horizontal Beamwidth F/B Ratio 02680S2 400-520  3.0 150MHz <1.5:1 50 ohm (Nominal) 34° 180° 9 dB Power Rating 500W

Electrical - Half Wavelength Spacing from Vertical Boom

Model Frequency MHz Gain (dBD) Tuned Bandwidth Operating VSWR Input Impedance Vertical Beamwidth Horizontal Beamwidth F/B Ratio 02680S2 400-520  3.0 150MHz <1.5:1 50 ohm (Nominal) 34° See Pattern N/A Power Rating 500W

Electrical - Full Wavelength Spacing from Vertical Boom

Model Frequency MHz Gain (dBD) Tuned Bandwidth Operating VSWR Input Impedance Vertical Beamwidth Horizontal Beamwidth F/B Ratio 02680S2 400-520  3.0 150MHz <1.5:1 50 ohm (Nominal) 34° See Pattern N/A Power Rating 500W

Mechanical

Model Construction Length (m) Width (m) Weight (kg) Termination Projected Area Wind Loading @160 KPH Mounting 02680S2 All Stainless Steel  construction. *1.78 0.810 # Cable tail, N-Female *0.1600  SQM *30.36 Kg *50 mm  * Based on 50 mm Vertical Boom (Not Supplied). # Dependent on Vertical Boom wall thickness and material type.

VSWR Plots

H Plane Patterns

2 Stack Dipole Array  1/4 Wavelength Spacing LOG	2 Stack Dipole Array  1/2 Wavelength Spacing LOG
3 DB H Plane Beamwidth: 180 Deg  Frequency:  450 MHz  Gain: 3.0 & 6.0 dB  Front/Back Ratio 8.0 dB                         [Dwg 776][Rev]	3 DB H Plane Beamwidth: - Deg   Frequency:  450 MHz  Gain: 3.0 & 6.0 dB  Front/Back Ratio 8.0 dB                         [Dwg 777][Rev ]

E Plane - 2 Stack Arrays - 1/4 Wave Spacing 

2 Stack Dipole Array  1/4 Wavelength Spacing LOG	2 Stack Dipole Array  1/4 Wavelength Spacing LOG
3 DB E Plane Beamwidth: 32 Deg   Frequency:  400 MHz  Gain: 3.0 dB  Front/Back Ratio 8.0 dB                       [Dwg 768][Rev 02]	3 DB E Plane Beamwidth: 32 Deg   Frequency:  420 MHz  Gain: 3.0 dB  Front/Back Ratio 8.0 dB                      [Dwg 769][Rev 02]
2 Stack Dipole Array  1/4 Wavelength Spacing LOG	2 Stack Dipole Array  1/4 Wavelength Spacing LOG
3 DB E Plane Beamwidth: 34 Deg   Frequency:  450 MHz  Gain: 6.0 dB  Front/Back Ratio 8.0 dB                         [Dwg 770][Rev]	3 DB E Plane Beamwidth: 32 Deg   Frequency:  520 MHz  Gain: 3.0 dB  Front/Back Ratio 8.0 dB                       [Dwg 771][Rev 02]

E Plane - 2 Stack Arrays - 1/2 Wave Spacing 

2 Stack Dipole Array  1/2 Wavelength Spacing LOG	2 Stack Dipole Array  1/2 Wavelength Spacing LOG
3 DB E Plane Beamwidth: 34 Deg  Frequency:  400 MHz  Gain: 3.0 dB  Front/Back Ratio 4.0 dB                         [Dwg 764][Rev]	3 DB E Plane Beamwidth: 34 Deg  Frequency:  420 MHz  Gain: 3.0 dB  Front/Back Ratio 4.0 dB                         [Dwg 765][Rev]
2 Stack Dipole Array  1/2 Wavelength Spacing LOG	2 Stack Dipole Array  1/2 Wavelength Spacing LOG
3 DB E Plane Beamwidth: 34 Deg  Frequency:  450 MHz  Gain: 3.0 dB  Front/Back Ratio 4.0 dB                         [Dwg 766][Rev]	3 DB E Plane Beamwidth: 34 Deg  Frequency:  520 MHz  Gain: 3.0 dB  Front/Back Ratio 4.0 dB                         [Dwg 767][Rev ]

E Plane - 2 Stack Array 1 wave Spacing

2 Stack Dipole Array  1 Wavelength Spacing LOG	2 Stack Dipole Array  1 Wavelength Spacing LOG
3 DB E Plane Beamwidth: 34 Deg  Frequency:  400 MHz  Gain: 3.0 dB  Front/Back Ratio 4.0 dB                         [Dwg 772][Rev]	3 DB E Plane Beamwidth: 34 Deg  Frequency:  420 MHz  Gain: 3.0 dB  Front/Back Ratio 4.0 dB                         [Dwg 773][Rev ]
2 Stack Dipole Array  1 Wavelength Spacing LOG	2 Stack Dipole Array  1 Wavelength Spacing LOG
3 DB E Plane Beamwidth: 34 Deg  Frequency:  450 MHz  Gain: 3.0 dB  Front/Back Ratio 4.0 dB                         [Dwg 774][Rev]	3 DB E Plane Beamwidth: 30 Deg  Frequency:  520 MHz  Gain: 3.0 dB  Front/Back Ratio 6.0 dB                         [Dwg 775][Rev ]

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