User Manual

DFA 2/900-X/...
Dual-frequency Mobile Antenna for the 160 and 900 MHz
Bands
DESCRIPTION
New whip design for optimum wind noise reduction.
This antenna makes it possible to:
- operate 160 MHz and 900 MHz transceivers alternately on the same
antenna.
- operate two transceivers (160 and 900 MHz) at the same time on one
antenna using a diplexer (type DIPX 225/330 – to be ordered
separately).
- operate a dual-frequency transceiver (160 and 900 MHz) on one
antenna (diplexer not required).
Ready-tuned and unity gain on both bands.
Stainless steel X-mount with M6-thread whip-fastening system.
Simple mounting exclusively with access from the outside.
Models available with X-mount (oblong) and CX-mount (circular).
Choice between two connection principles:
X-mount: FME-connection (supplied without cable).
XP4-mount: Permanently attached 4 m cable terminated with FME-
connector.
ORDERING DESIGNATIONS
TYPE PRODUCT NO. MOUNT VERSION
DFA 2/900-X/... 130000690 X-mount (oblong)
with FME-system
DFA 2/900-CX/... 130000696 CX-mount (circular)
with FME-system
DFA 2/900-XP4/... 130000693 XP4-mount (oblong) with
4 m cable and FME-system
DFA 2/900-CXP4/... 130000695 CXP4-mount (circular) with
4 m cable and FME-system
When ordering, the operating frequencies in both bands must be stated. In
case of duplex operation, only the TX frequency should be stated. In case of
application for a CELLULAR system in the 900 MHz band, the name of the
CELLULAR network can be stated.
SPECIFICATIONS
ELECTRICAL
MODEL DFA 2/900-X/...
ANTENNA TYPE Dual-frequency mobile antenna
FREQUENCY 160 MHz-band freq. to be stated
within: 144…175 MHz
900 MHz-band freq. to be stated
within: 820…960 MHz
IMPEDANCE Nom. 50 Ω
POLARIZATION Vertical
GAIN 0 dB on both bands (acc. to EIA RS-329-1)
BANDWIDTH 160 MHz: ≥ 8 MHz @ SWR ≤ 2.0
900 MHz: ≥ 50 MHz @ SWR ≤ 2.0
SWR 160 MHz: ≤ 1.75 @ f.res.
900 MHz: ≤ 1.2 @ f.res.
MAX. POWER 30 W
MECHANICAL
MATERIALS Whip:
Conical glass fiber
Black-chromed brass
Mount:
Black-chromed brass
Weather- and shockproof plastics
Stainless steel
RECOMMENDED
INSTALLATION
TORQUE
4 ± 1 Nm
COLOUR Black
HEIGHT Approx. 50 cm
WEIGHT X-version: Approx. 80 g
XP4-version: Approx. 220 g
MOUNTING 18 mm dia. hole