A1811WB

Overview

The A1811WB is a heavy-duty, high-power VHF whip antenna designed for mobile land mobile radio (LMR) and public safety applications. It operates within the 136MHz to 174MHz frequency range with a gain of 3dBi. The unit features a straight design and utilizes an NMO connector for surface mount installation. Physical dimensions include a height of 21.25 inches (54cm) and a diameter of 1.38 inches (35mm).

Feature Summary

• Heavy-duty construction suitable for high-power mobile radio environments.
• Straight whip design optimized for VHF band coverage.
• NMO connector interface for secure vehicle mounting.

Applications

• Land Mobile Radio (LMR) systems
• Public safety vehicle communications
• Fleet management installations

Procurement Notes

Verify the specific part number suffix against official Mobile Mark documentation to confirm physical configuration. Ensure the NMO base type matches the vehicle mounting hardware. Confirm frequency range requirements align with operational needs before procurement.

Selection Notes

Select this model for VHF mobile radio deployments requiring robust mechanical durability. Compare against the shock spring variant if vibration isolation is critical. Verify that the NMO mounting style is compatible with existing vehicle roof infrastructure.

Part Context

Mobile Mark Antenna Solutions specializes in RF antennas for mobile, portable, and fixed site applications. The product line covers frequencies from 30 MHz to 7.2 GHz, supporting technologies such as LTE, WiFi, GPS, and LMR. This component belongs to their heavy-duty mobile antenna series.

Replacement Considerations

The A1811WBS is a confirmed alternative variant featuring a shock spring base instead of the solid base found in the A1811WB. Both share similar electrical specifications but differ in mechanical mounting characteristics.