A55136TBS

Antennas RF Overview

The Mobile Mark A55136TBS is a heavy-duty, high-power tri-band mobile antenna designed for VHF, UHF, and 700/800 MHz bands. It features an NMO surface mount base and measures 21 inches in length. The antenna supports frequencies of 136-174 MHz, 380-520 MHz, and 698-960 MHz with a maximum power handling of 200 Watts. It offers 3 dBi gain on VHF and 5 dBi gain on UHF bands, maintaining a VSWR of 2.25. The unit provides omni-directional coverage with vertical polarization at 50Ω impedance.

Antennas RF Feature Summary

• Heavy-duty construction suitable for high-power applications
• Tri-band capability covering VHF, UHF, and 700/800 MHz ranges
• Omni-directional radiation pattern with vertical polarization

Antennas RF Applications

• P25 digital radio systems
• Motorola APX 8500 mobile radios
• Public safety vehicle communications
• Multi-band mobile radio installations

Antennas RF Procurement Notes

Verify the specific frequency range requirements against the official datasheet, as some sources cite 698-870 MHz while others indicate 698-960 MHz. Confirm that the NMO mounting interface matches the vehicle or equipment installation point. Ensure the 200-watt power rating aligns with the transmitter output to prevent damage. Check for included shock springs if vibration isolation is required for the deployment environment.

Antennas RF Selection Notes

Select this model when simultaneous operation across VHF, UHF, and 700/800 MHz bands is required on a single mounting point. The NMO base is standard for many North American mobile vehicles. Consider the 21-inch height for clearance constraints. This antenna is optimized for P25 compliance and public safety use cases requiring robust performance in harsh environments.

Antennas RF Part Context

This component belongs to the Mobile Mark A55136 series of premium heavy-duty tri-band mobile antennas. The TBS suffix typically denotes specific packaging or configuration details within the manufacturer's lineup. It is engineered for demanding mobile communication scenarios where multi-band functionality and durability are critical for operational continuity.

Antennas RF Replacement Considerations

Direct substitutes may include other Mobile Mark tri-band models with compatible NMO bases. Verify that any replacement maintains the same frequency coverage and power handling capabilities. Ensure physical dimensions allow for adequate clearance during vehicle movement.