Directional Antenna 87.5 – 108 MHz 774 824 Antennas/774824.pdfDirectional Antenna 87.5 – 108 MHz...
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● Vertically polarized directional antenna. Input 7/8″ EIA-flange Frequency range 87.5 – 108 MHz VSWR < 1.3 Gain (ref. λ/2-dipole) 4 dB at mid-band Impedance 50 Ω Polarization Vertical Max. power 5 kW Weight approx. 35 kg Wind load approx. frontal: 800 N (at 160 km/h) lateral: 800 N Max. wind velocity 225 km/h Dimensions A 1700 mm B 1250 mm Type No. 774 824 Material: Hot-dip galvanized steel. Radome: Fiberglass. Mounting: To a vertical pipe of ∅ 89 mm by 2 pcs. U-bolts (supplied) or to proper flanges. Mounting dimensions upon request. Grounding: Via mounting parts. Ice protection: Even under icy conditions the antenna keeps operating due to the radomes covering the feed areas. Scope of supply: Antenna consisting of one half-wave dipole with reflector screen and 2 U-bolts. Special features: The antenna is shipped dismounted. Directional Antenna 87.5 – 108 MHz 774 824 936.A973 Subject to alteration. KATHREIN-Werke KG . Anton-Kathrein-Straße 1 – 3 . P.O. Box 10 04 44 . D-83004 Rosenheim . Germany . Telephone (++49) 8031 / 184-0 . Fax (++49) 8031 / 184-991 Radiation Patterns (at mid-band) in H-plane Horizontal Radiation Pattern in E-plane Vertical Radiation Pattern 3 10 0 140° dB 3 dB 10 0 70° B A
Transcript of Directional Antenna 87.5 – 108 MHz 774 824 Antennas/774824.pdfDirectional Antenna 87.5 – 108 MHz...
Vertically polarized directional antenna.
Input 7/8″ EIA-flangeFrequency range 87.5 – 108 MHzVSWR < 1.3Gain (ref. λ/2-dipole) 4 dB at mid-bandImpedance 50 ΩPolarization VerticalMax. power 5 kWWeight approx. 35 kg Wind load approx. frontal: 800 N(at 160 km/h) lateral: 800 NMax. wind velocity 225 km/hDimensions A 1700 mm
B 1250 mm
Type No. 774 824
Material: Hot-dip galvanized steel.Radome: Fiberglass.
Mounting: To a vertical pipe of ∅ 89 mm by 2 pcs. U-bolts(supplied) or to proper flanges.Mounting dimensions upon request.
Grounding: Via mounting parts.
Ice protection: Even under icy conditions the antenna keepsoperating due to the radomes covering the feedareas.
Scope of supply: Antenna consisting of one half-wave dipole withreflector screen and 2 U-bolts.
Special features: The antenna is shipped dismounted.
Directional Antenna87.5 – 108 MHz774 824
936.
A97
3
Sub
ject
to a
ltera
tion.
KATHREIN-Werke KG . Anton-Kathrein-Straße 1 – 3 . P.O. Box 10 04 44 . D-83004 Rosenheim . Germany . Telephone (++49) 8031 / 184-0 . Fax (++49) 8031 / 184-991
Radiation Patterns (at mid-band)
in H-planeHorizontal Radiation Pattern
in E-planeVertical Radiation Pattern
3
10
0
140°
dB
3 dB
10
0
70°
B
A
