Procom DP-4-... User Manual
Dp 4
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DP 4/...
Centre-Fed Folded Dipole for the 80 MHz Band
DESCRIPTION
Single, 0 dBd folded dipole incorporating a balun optimized for wide
bandwidth and accurate matching.
The entire balun unit and feeder terminations are completely sealed in a
polythene moulding ensuring permanent waterproof connections.
The dipole element, the supporting boom and the adjoining metal
castings have been constructed in high quality aluminium alloys to
prevent corrosion. All metal parts are DC-grounded.
These antennas may be arranged in a variety of ways to produce higher
gain, directional lobes or interference cancellation, and suitable
matching harnesses are available.
The antenna is supplied complete with clamp for mounting on 30 - 58
mm diameter mast tubes.
ORDERING DESIGNATIONS
TYPE
PRODUCT NO.
FREQUENCY
DP 4/l
120000017
66 - 77 MHz
DP 4/h
120000016
75 - 88 MHz
SPECIFICATIONS
ELECTRICAL
MODEL
DP 4/...
ANTENNA TYPE
Folded dipole
FREQUENCY
DP 4/l : 66 – 77 MHz
DP 4/h : 75 – 88 MHz
IMPEDANCE
Nom. 50 Ω
RADIATION
Omnidirectional
POLARIZATION
Vertical or horizontal
GAIN
2 dBi 0 dBd
BANDWIDTH
11 - 13 MHz
SWR
≤ 1.5
MAX. POWER
150 W
ANTISTATIC
PROTECTION
All metal parts DC-grounded
(Connector shows a DC-short)
MECHANICAL
TEMP. RANGE
-25°C → +60°C
CONNECTOR
3 m tail of RG 213 terminated with type N-female
connector
WIND SURFACE
0.12 m²
WIND LOAD
152 N @ 160 km/h
COLOUR
“Aluminium”
MATERIALS
Aluminium and environmentproof plastics
DIMENSIONS
Dipole element dia: 19 mm
Boom dia. : 31.8 mm
Boom length : Approx. 1.4 m
Element length : Approx. 1.8 m
WEIGHT
Approx. 4.0 kg
MOUNTING
On 30 - 58 mm dia. mast tube
TYPICAL GAIN AND SWR CURVES