Druckschrift 9981.0190, Broadcast Antenna Systems - Romkatel

K 52 31 8. .
Directional Antenna
47 ... 88 MHz
● Directional antenna of hot-dip galvanized steel.
● Especially suitable for square and round masts.
Radiation Patterns
(at mid-band)
72°
10
3
dB
0
in E-plane
Horizontal Radiation Pattern
56°
10
Length see table
3
0
dB
in H-plane
Vertical Radiation Pattern
Type No. K 52 31 81 7 K 52 31 82 7 K 52 31 83 7 K 52 31 84 7 K 52 31 85 7 K 52 31 86 7
Order No. 601 070 601 071 601 072 601 819 601 820 601 821
Frequency range
Channel
Input
VSWR
Gain (ref. λ/2-dipole)
Polarization
Impedance
Max. power
Dimensions in mm
A
B
C
Weight in kg
Wind load in kN (at v = 160 km/h)
frontal
lateral
Max. wind velocity
Material:
Mounting:
Grounding:
Combinations:
Special features:
Ice protection:
Scope of supply:
47 – 54 MHz 54 – 61 MHz 60 – 68 MHz 66 – 72 MHz 76 – 82 MHz 82 – 88 MHz
2 3 4
2 3 4 5 6
7-16 female (type gas-stop)
< 1.15
7.5 dB
Horizontal (vertical upon request)
50 Ω
6 kW (higher power upon request)
3360 2960 2640 2470 2165 2015
3200 2800 2500 2340 2040 1900
1330 1180 1060 995 875 820
140 124 110 100 94 89
2.60 2.30 2.10 2.05 1.80 1.60
1.30 1.20 1.10 1.10 1.00 0.90
225 km/h
Hot-dip galvanized steel. Radome: Fiberglass.
Mounting hardware and mounting dimensions upon request.
Via mounting parts.
The antenna is especially suitable as a component in arrays to achieve various radiation
patterns. Particularly for square and round masts.
The antenna is shipped dismounted.
Even under severe icy conditions the antenna is still functional due to its heavy-duty
construction and the fiberglass covers for the feeding points.
Antenna consisting of two half-wave dipoles with reflector screens.
56