Mobile Load Coil Antenna
Innovative
Technology
for a
Connected
World
Spring B4303S
PREMIUM MOBILE LOAD COIL ANTENNAS ARE INDUSTRY STANDARD
Laird Technologies’ongoing commitment to refinement in mechanical and electrical
design has resulted in the most technically advanced mobile load coil antennas on the
market. Exclusive features such as stainless steel whips, housings constructed with ABS
material injected molded around a solid brass insert, and gold plated push pin contacts
make Laird Technologies the obvious choice for quality and long lasting value for
demanding mobile radio communications.
FEATURES
• Easily removable rod allows the mount
to stay water tight during car washes
• O-ring built into the base creates a
weather-tight seal
• ABS material is injection molded
directly around the solid brass inserts
for a virtually indestructible housing
that will not leak or dissassemble
• All silver soldered joints provide
an electrically and mechanically
secure connection
MARKETS
• Public safety
• Transportation
• Utility
• Military mobile
ANTENNA PATTERNS
350°
340°
°
330
20°
0
-2
-4
-6
-8
-10
-20
-30
-40
-50
10°
320
30°
40
°
°
50
°
60
70°
80°
90°
°
31
0°
30
0°
290
°
280°
270°
Normalized to 3dBi
Elevation Pattern (Y, Z, or H-plane)
global
solutions:
local
support
Americas: +1.847 839.6907
IAS-AmericasEastSales@lairdtech.com
Europe: +1.32.80.7866.12
IAS-EUSales@lairdtech.com
Asia: +1.65.6.243.8022
IAS-AsiaSales@lairdtech.com
TM
www.lairdtech.com
Mobile Load Coil Antenna
Spring B4303S
Innovative
Technology
for a
Connected
World
SPECIFICATIONS
ELECTRICAL
Frequency Range
VSWR
Nominal Gain
Maxmium Power
Nominal Impedance
Polarization
Pattern
Half-Power Beamwidth
(Elevation° x Azimuth°)
Coaxial Cable Length & Type
(For Vertical Polarization)
Terminations
Noise Suppressor
430-450 MHz
< 2.1 Max
3 dBi
200 W
50
Ω
Vertical
Omnidirectional
70° x 360°
None
NMO
BlackHawk NS1535
1-35 VOLT, 15 Amp
Noise Suppessor
(Sold Separately)
MODEL AND ORDERING INFORMATION
MODEL
B4303S
BB4303S
DESCRIPTION
430-450 MHz, 5/8 Wave, Chrome Finish
430-450 MHz, 5/8 Wave, Black Finish
OVERALL HEIGHT
23”
23”
TUNING
See Cutting Chart
See Cutting Chart
B4303S CUTTING CHART
FREQUENCY
430 MHz
435 MHz
440 MHz
445 MHz
450 MHz
WHIP LENGTH
9-13/16”
9⅝”
18-5/16”
9”
8¾”
MECHANICAL
Height
Diameter
Weight
Equivalent Flat Plate Area
(Wind Resistance in Sq. Ft.)
Mounting Information
(Sold Separately)
19⅜”
(Also, see cutting chart)
1.44”
< 0.5 lb
0.023 sq. ft.
NMO Mountable
ANT-DS-B4303S 0809
Any information furnished by Laird Technologies, Inc. and its agents is believed to be accurate and reliable. All specifications are subject to change without notice. Responsibility for the use and
application of Laird Technologies materials rests with the end user, since Laird Technologies and its agents cannot be aware of all potential uses. Laird Technologies makes no warranties as to the fitness,
merchantability or suitability of any Laird Technologies materials or products for any specific or general uses. Laird Technologies shall not be liable for incidental or consequential damages of any kind.
All Laird Technologies products are sold pursuant to the Laird Technologies’ Terms and Conditions of sale in effect from time to time, a copy of which will be furnished upon request. © Copyright 2009
Laird Technologies, Inc. All Rights Reserved. Laird, Laird Technologies, the Laird Technologies Logo, and other marks are trade marks or registered trade marks of Laird Technologies, Inc. or an affiliate
company thereof. Other product or service names may be the property of third parties. Nothing herein provides a license under any Laird Technologies or any third party intellectual property rights.