Druckschrift 9981.0190, Broadcast Antenna Systems - Romkatel
Druckschrift 9981.0190, Broadcast Antenna Systems - Romkatel
Druckschrift 9981.0190, Broadcast Antenna Systems - Romkatel
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K 53 37 1. .<br />
FM-Transmitting <strong>Antenna</strong><br />
87.5 – 108 MHz<br />
● An economic FM-transmitting antenna system can be built by stacking<br />
2 or more vertical dipoles 762 943 in front of a thin tubular mast.<br />
● Such antenna systems provide signal coverage in all azimuth directions<br />
as shown in the horizontal radiation pattern below. (The horizontal<br />
radiation pattern will be distorted, if a significantly bigger mast is used).<br />
> 250<br />
mm<br />
Type No. / Order No. 769 182 773 697<br />
Input 7-16 female 1 5 / 8 ″ EIA-flange<br />
Number of bays 4<br />
Frequency range<br />
87.5 – 108 MHz<br />
VSWR ≤ 1.4<br />
Gain (ref. λ/2 dipole)<br />
8 dB in mid-band<br />
Impedance<br />
50 Ω<br />
Polarization<br />
Vertical<br />
Max. power 2 kW 10 kW<br />
(20 kW on request)<br />
Weight 80 kg 90 kg<br />
Wind load<br />
900 N (at v = 160 km/h)<br />
Height<br />
7680 mm<br />
H<br />
2100 mm<br />
Material:<br />
Mounting:<br />
Special features:<br />
Scope of supply:<br />
Grounding:<br />
Hot-dip galvanized steel.<br />
To pipes of 60 – 125 mm diameter<br />
by means of mounting clamps, supplied.<br />
The antenna will be shipped dismounted.<br />
<strong>Antenna</strong> including splitter, connecting<br />
cables, tubular mast only on request.<br />
Via mounting parts.<br />
Radiation Patterns (at mid-band, beamtilt ≈1°)<br />
220°<br />
18°<br />
10<br />
10<br />
3<br />
0<br />
dB<br />
Horizontal Pattern<br />
3<br />
0<br />
dB<br />
Vertical Pattern<br />
75
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