NMO Adapter To UHF Connector | MABO MBO

This adapter screws into the base of any NMO antenna, regardless of whether the NMO style is MABO (⅜ inch hole) or MBO (3/4 inch hole).

The adapter has a bulkhead, nut and washer, so that you can mount the adapter through a hole (such as a vehicle roof or the wall of an enclosure).

See our NMO-mount-compatible antennas (this adapter fits them):

• LTE antennas including Multiband LTE
• WiFi & BlueTooth NMO-mount compatible antennas
• 900MHz antennas for LoRaWAN, Helium & any application in the 890-915 MHz frequency band

NMO antenna bases, MABO & MBO: Dimensions

• MABO (3/8" diameter version) and MBO (3/4" diameter version) are the two different types of through-hole NMO connector.
• NMO ring hole size: There is a 3/8" version and a 3/4" version.
  • MABO works with a ⅜ inch hole
  • MBO works with a ¾ inch hole

This NMO mount to UHF bulkhead adapter allows virtually any NMO-compatible antenna to be mounted through a panel, enclosure wall, equipment cabinet, or vehicle surface while providing a standard UHF RF connection. The adapter threads directly into the base of NMO antennas and is compatible with both major NMO mounting standards: MABO (3/8-inch hole) and MBO (3/4-inch hole) antenna styles.

Designed for professional wireless communications, IoT, telemetry, cellular, and industrial applications, this adapter provides a durable and weather-resistant solution for mounting NMO antennas in locations where a traditional vehicle NMO mount is not practical.

The integrated bulkhead design includes a mounting nut and washer, allowing the adapter to be securely installed through a hole in a vehicle roof, equipment enclosure, utility cabinet, control panel, kiosk, or other structure.

Compatible with NMO Antennas

This adapter works with NMO-compatible antennas used across a wide range of wireless technologies and frequency bands.

Compatible antenna types include:

• LTE and 5G cellular antennas
• Multiband cellular antennas
• WiFi antennas
• Bluetooth antennas
• LoRaWAN antennas
• Helium network antennas
• 900 MHz ISM band antennas
• Industrial telemetry antennas
• SCADA system antennas
• Private wireless network antennas
• Public safety and land mobile radio antennas

The adapter is particularly useful when deploying NMO antennas on fixed equipment, outdoor enclosures, remote monitoring systems, gateways, and industrial IoT installations.

Applications

The NMO-to-UHF bulkhead adapter is ideal for a variety of wireless deployments, including:

Cellular and LTE Installations

Support external antennas used for:

• LTE
• LTE-M
• NB-IoT
• 4G LTE
• 5G cellular networks
• GSM and UMTS systems

WiFi and Wireless Networking

Suitable for antennas supporting:

• WiFi 6 (802.11ax)
• WiFi 6E
• WiFi 5 (802.11ac)
• WiFi 4 (802.11n)
• WiFi HaLow (802.11ah)
• Traditional 2.4 GHz and 5 GHz WiFi networks

IoT and Machine-to-Machine Communications

Frequently used in:

• Industrial IoT gateways
• Remote monitoring systems
• Smart agriculture deployments
• Environmental monitoring stations
• Asset tracking systems
• Utility telemetry networks

Compatible wireless technologies include:

• LoRaWAN
• Bluetooth
• ZigBee
• RFID
• LTE-M
• NB-IoT
• Proprietary ISM-band radios

Rugged Construction for Demanding Environments

This adapter is engineered for long-term reliability in both indoor and outdoor installations.

Body Construction

The adapter body is manufactured from nickel-plated brass, providing:

• Excellent corrosion resistance
• High mechanical strength
• Long service life in outdoor environments
• Resistance to moisture and environmental exposure

PTFE Insulator

A high-performance PTFE dielectric insulator offers:

• Excellent electrical properties
• Low RF signal loss
• High temperature stability
• Long-term reliability

Premium RF Contact Materials

The center contact utilizes gold-plated beryllium copper for:

• Superior conductivity
• Low contact resistance
• Excellent signal integrity
• Long mating cycle life

The ferrule incorporates nickel-plated copper for additional durability and mechanical stability.

UHF Connectors

The UHF connector's body is made from machined, nickel-plated brass with a Teflon insulator. Though it is rugged and easy to handle and mate, it is not weatherproof, limiting its applications. The outside diameter of the mated connector is usually 18 millimeters but can vary.

The connectors have 5⁄8 inch 24 TPI UNEF standard threading

• The male UHF connector has internalized threads and carries a brass conductor pin
• The female UHF connector has externalized threads and carries a brass receptacle.

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Key Features of NMO to UHF Adapter

• Compatible with NMO antennas
• Works with both MABO and MBO antenna styles
• Integrated UHF bulkhead connector
• Includes mounting nut and washer
• Suitable for vehicle and enclosure mounting
• Nickel-plated brass construction
• PTFE dielectric insulator
• Gold-plated beryllium copper contacts
• Corrosion-resistant design
• Ideal for LTE, 5G, WiFi, Bluetooth, LoRaWAN, Helium, and IoT applications
• RoHS and REACH compliant

Designed for Reliable RF Performance

This NMO mount adapter is designed for use in professional RF systems requiring dependable signal transfer and long-term reliability. Its precision construction helps maintain proper impedance characteristics and minimizes insertion loss, making it suitable for demanding wireless applications.

Whether installed on a vehicle, outdoor equipment enclosure, communications cabinet, gateway housing, or industrial control system, this adapter provides a secure and dependable connection between NMO antennas and UHF-based RF cabling systems.