DFA 450/900-ZG/..
450 MHz / 900 MHz Dual-frequency Mobile Antenna
DESCRIPTION
This antenna makes it possible to:
-operate 450 MHz and 900 MHz transceivers alternately on the same
antenna
-operate two transceivers (450 and 900 MHz) at the same time on one
antenna using a diplexer
-(type DIPX 500/800 – to be ordered separately)
-operate a dual-frequency transceiver (450 and 900 MHz) on one
antenna (diplexer not required).
Ready-tuned and unity gain on both bands.
Stainless steel ZG-mount with M8-thread whip-fastening system.
Simple mounting exclusively with access from the outside.
Choice between two connection principles: ZG-mount : FME-connection
(supplied without cable).
ZGP4-mount : Permanently attached 4 m cable terminated with FME-
connector.
Ordering designations
TYPE NO. PRODUCT NO.
DFA 450/900-ZG/...
When ordering, the operating frequencies in both bands must be stated. In
case of duplex operation please specify TX and RX frequencies. In case of
application for CELLULAR systems pleasestate names of CELLULAR
networks.
All whips are compatible with all mounts
SPECIFICATIONS
ELECTRICAL
MODEL DFA 450/900-ZG/...
ANTENNA TYPE Dual-frequency mobile antenna
FREQUENCY 450 MHz-frequency to be stated within: 380–470 MHz
900 MHz-frequency to be stated within: 800–960 MHz
IMPEDANCE Nom. 50 Ω
POLARISATION Vertical
GAIN Approx. 0 dB in both bands (acc. to EIA RS-329-1)
BAND WIDTH 450 MHz: > 25 MHz @ SWR ≤ 2.0 (typ.)
900 MHz: > 80 MHz @ SWR ≤ 1.5 (typ.)
SWR ≤ 1.5 on transmitter frequencies
MAX. POWER 50 W
MECHANICAL
MATERIALS Whip:
Black glassfiber
Black-chromed brass
Mount:
Black-chromed brass
Environment-proof plastics.
Stainless steel
RECOMMENDED
INSTALLATION
TORQUE
7.5 ± 1 Nm
COLOUR Black
HEIGHT Approx. 160 mm
WEIGHT ZG-version: Approx. 70 g
ZGP4-version: Approx. 250 g
MOUNTING 21 mm dia. hole
FME-SYSTEM ACCESSORIES
FME-CABLES
LENGTH TYPE NO.
1 m 1 m FME
2 m 2 m FME
3 m 3 m FME
4 m 4 m FME
5 m 5 m FME
6 m 6 m FME
4 m white 4 m FME-white
6 m white 6 m FME-white
12 m white 12 m FME-white
18 m white 18 m FME-white
FME-CONNECTORS
CONNECTOR ORDER NO.
FME-FME FME-FME
Prolongation FMEP
N FME-N
FSMA FME-FSMA
BNC FME-BNC
TNC FME.TNC
UHF FME-UHF
Mini-UHF FME-MUHF
Elbow-MUHF FME-EMUHF
Elbow-BNC FME-EBNC
Elbow-TNC FME-ETNC
SMA FME-SMA
For further information about other types of FME-cables please compare the cable data sheets under
accessories in our catalogue.
INSTALLATION
The ZG-mount is designed for mounting in a 21 mm dia. hole on horizontal
surfaces as e.g. roof top or trunk lid, with access from the outside only.
A good contact surface on the inside of the car body must always be
ensured, thus enabling the base plate to get in direct contact with the metal
parts of the car, which is of utmost importance for proper performance of
the antenna.
The ZG-mount is provided with an M8 x 1 thread mount system. This
construction meets the demand for a low profile mobile mount with a slim
appearance and with protection against theft of the antenna whip.
When cleaning the car in car-washing machines, the whip is easily removed
using a fork spanner. The whip is refitted again by screwing it onto the
thread stud and tightening it with the spanner.
(1 pages)
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