03.2004
PROCOM A/S reserve the right to amend specifications without prior notice.
SMR 1 SMR 2 YA-Bracket LW 1” MariFix 1 MariFix 2 ADTFLG
CXL 70-1/…
Unity Gain Base Station and Marine UHF Antenna
ORDERING DESIGNATIONS
TYPE NO. FREQUENCY
CXL 70-1/l 380–430 MHz
CXL 70-1/h 420–470 MHz
ACCESSORIES: (to be ordered separately)
PROCOM A/S reserve the right to amend specifications without prior notice.
SPECIFICATIONS:
DESCRIPTION:
+
This rod-type UHF antenna is developed for use onboard ships as well as on masts and
covers the 450 MHz band in two models.
+
The 1” revolving nut mounting system makes it possible to mount the antenna in the
mast, in the auxiliary mast or on the cross-beam. By means of PROCOM’s flange mount
type “FLG”, it can easily be mounted even on the rooftop.
+
This antenna type can be used for a wide variety of purposes. It is very popular and widely
used in connection with 70 cm CELLULAR systems – as for instance the Nordic Mobile
Telephone system NMT – making it possible to extend the – normally land based –
CELLULAR telephone system for maritime mobile service as well.
+
The antenna is a 1/2 design and this means that it needs neither loading coils,
groundplane, radials nor other auxiliary arrangements.
+
Bear in mind that the higher the antenna is mounted the better coverage.
+
Avoid mounting the antenna parallel with or in the neighbourhood of other metal parts,
such as masts, supporting wires etc. Free mounting and as high as possible is most
preferable, otherwise the SWR and the radiation diagram will be influenced.
+
The antenna is a grounded radiator antenna and therefore it shows a DC-short across the
coaxial cable.
+
A conical glassfiber tube completely encloses the carefully designed radiating element to
assure long dependable service in all climates.
ELECTRICAL
MODEL CXL 70-1/...
ANTENNA TYPE 1/2 coaxial dipole, broad-banded
FREQUENCY
CXL 70-1/l: 380–430 MHz
CXL 70-1/h: 420–470 MHz
IMPEDANCE Nom. 50 ⍀
POLARISATION Vertical
GAIN 2 dBi (0 dBd)
BANDWIDTH 50 MHz
SWR < 1.5
MAX. POWER 150 watt
MECHANICAL
TEMP. RANGE -30° C i+70° C
CONNECTOR N-female
WIND SURFACE 0.0093 m
2
WIND LOAD 10.3 N (at 150 km/h)
COLOUR Marine white
MATERIALS
Shroud: Polyurethane coated
glassfiber
Mounting bracket: Chromed brass
TOTAL HEIGHT Approx. 560 mm
DIA. IN TOP END 12 mm
DIA. IN BOTTOM END 16 mm
WEIGHT Approx. 350 g
On 1” RG (G1”-11) threaded water pipe
MOUNTING or on optional mounting brackets
(see below)
SWR
CXL 70-1/l :
CXL 70-1/h:
Typical gain- and
SWR- curves for
2.0
1.5
1.0
360
400
CXL 70-1/…
380
420
400
440
420
460
440
480
f. MHz
G1"-11
(1" RG)
Gain dBd
5.0
0.0
-5.0
G1"-11
(1" RG)
G1"-11
(1" RG)
G1"-11
(1" RG)
ÿ17
G1"-11
(1" RG)
1"-14 NF
1"-14 NF
G1"-11
(1" RG)
1"-14 NF
PROCOM A/S reserve the right to amend specifications without prior notice.
CXL 70-1/…
Unity Gain Base Station and Marine UHF Antenna
TYPICAL RADIATION PATTERN (E-PLANE)
TYPICAL RADIATION PATTERN (H-PLANE)
350
340
330
o
320
o
310
290
280
300
o
o
o
o
dB
0-3-6
o
260
o
250
o
240
o
230
o
o
220
210
o
o
CXL 70-1/...
-9
-12 -12
o
o
200
190
o
o
0
180
o
o
10
20
30
o
o
40
-9 -6 -3 0
140
150
160
170
o
o
o
50
130
o
o
60
120
o
o
70
100
110
o
80
o
o
dB
o
o
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