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B4505CNS Chrome Base Coil Antenna - NMO Spring - 450-470 MHz UHF - No Ground Plane required.

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B4505CNS Chrome Base Coil Antenna - NMO Spring - 450-470 MHz UHF - No Ground Plane required.

More InfoDocumentsSpecifications Reviews

The Laird B4505CNS is a chrome 32 inch UHF whip antenna with an NMO base and No metal ground plane required.

*This Antenna Requires a NMO Mount. Please click here to find all Thru-Hole NMO mounts or Magnetic NMO Mounts we carry.

More Information

The Laird B4505CNS is a 32 inch chrome base loaded mobile UHF whip antenna with NMO base and spring. This antenna does NOT require a metal ground plane. This omnidirectional antenna ofers 5 dbi gain and 100 watts max power and operates in the 450MHz - 470MHz range.

Lairds’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.


  • Long tuning ferrule allows for greater freedom in frequency adjustment without trimming
  • High performance mobile antenna - does Not require ground plane
  • Straight Stainless steel corona ball stays on the rod – no metal interactions
  • Easy Installation / NMO mountable
  • 100% tested on a network analyzer


  • Public Safety
  • Transportations/Logistics
  • Utilties
  • Military



Manufacturer Part Number B4505CNS
Manufacturer Laird
Antenna Category UHF (380-600 MHz)
Working Frequency 450-470 MHz
Gain 5
Antenna Style Base Coil Antennas
Polarity Linear
Bands Single
Directional or Omni Omnidirectional
Impedance 50
Max Input Power (W) 200
VSWR: < X: 1 2
Horizontal/Azimuth Beamwidth 360
Vertical/Elevation Beamwidth 60
Height/Length (inches) 32.5
Height/Length (mm) 826
Thickness/Diameter (inches) 1.44
Thickness/Diameter (mm) 37
Material ABS
Mount Style Screw On
Mount Pattern 3/4 Inch NMO
Color Chrome
Connector Type Connector - Bottom
Connector 1 NMO
OK for Outdoor Use Yes
Vehicular Yes
Ground Plane Required No
Product Condition New