Outdoor 3.65 GHz wireless bridge
Ubiquiti PowerBridge M365 PBM365 in Dubai, UAE
The PBM365 is a compact, integrated airMAX bridge intended for long-distance outdoor connectivity in the 3.65 GHz band. It can be relevant when maintaining an established link, sourcing a matching unit or reviewing a controlled replacement, but spectrum permission, product lifecycle and system compatibility must be checked before ordering.
3.65 GHz regulated band
Outdoor directional bridge
One 10/100 Ethernet interface
Lifecycle and region must be confirmed
Direct answer for buyers
The Ubiquiti PowerBridge M365 PBM365 is an outdoor MIMO radio with an integrated directional antenna for building wireless links in the 3.65 GHz band. It was designed for carrier-style bridging rather than ordinary indoor Wi-Fi access. Organisations with an existing PBM365 installation, a need for a matched replacement or a carefully planned outdoor link may consider it. Before proceeding, confirm whether the requested unit is still obtainable, whether its firmware and hardware revision match the installed network, whether the local regulator permits the intended frequency, and whether its Fast Ethernet interface, passive PoE method and practical link capacity meet the current requirement.
What the PBM365 does
The unit combines a radio, processor, integrated dual-polarity panel antenna, outdoor enclosure and passive-PoE Ethernet connection in one assembly. Two compatible radios can form a directional wireless path between network locations where trenching fibre or copper may be impractical. Depending on design and supported operating mode, the platform can also participate in selected point-to-multipoint airMAX deployments.
The product is not a general indoor access point and should not be evaluated using consumer Wi-Fi expectations. Link engineering, antenna alignment, interference conditions, channel permissions and the capability of the opposite radio determine whether it can serve the intended network role.
Who it may suit
The PBM365 may suit wireless internet operators, industrial sites, utilities, campuses, warehouses, farms, remote facilities and businesses maintaining an earlier 3.65 GHz deployment. It is particularly relevant when a buyer must replace a failed matching endpoint or preserve interoperability while a migration plan is prepared.
It may be unsuitable where gigabit Ethernet, current cloud management, modern security expectations, broad regional certification or easy availability is required. In those situations, FourTeck can help compare newer outdoor bridge options rather than forcing a legacy model into a new design.
Business challenges this bridge may address
Connecting separated buildings
A properly engineered pair can extend Ethernet connectivity between facilities without a physical cable route. Clear line of sight and regulatory approval remain essential.
Maintaining a legacy link
Organisations already operating PBM365 radios may need an exact model, compatible spare, power component or migration assessment to reduce downtime risk.
Serving a difficult cable path
Outdoor bridging can be considered where civil works are disruptive, though wireless performance must be validated against terrain, obstruction and interference.
Planning a controlled refresh
A buyer can document the current link, traffic load and dependencies before selecting a modern replacement rather than making an untested swap.
Core capability band
Dual-linear polarisation supports MIMO operation in a compact directional panel design.
The radio uses the airMAX approach for scheduled wireless access and outdoor network operation.
The integrated housing is intended for pole-mounted outdoor use within documented environmental limits.
Power and network data are delivered through the Ethernet cable using the specified 24 V passive-PoE method.
Product-fit decision matrix
| Requirement | Suitable when | Confirm before ordering |
|---|---|---|
| Existing PBM365 replacement | The opposite endpoint and network design require the same platform. | Hardware revision, firmware, power injector, mounting and region. |
| New outdoor bridge | The 3.65 GHz band is permitted and legacy performance is acceptable. | Spectrum permission, availability, link budget and alternative platforms. |
| Long-distance path | There is clear line of sight and adequate Fresnel-zone clearance. | Coordinates, elevations, obstruction profile, rain and interference. |
| High-bandwidth network | Actual required traffic stays within the radio and Fast Ethernet limits. | Peak throughput, latency target and future growth. |
| Managed multi-site estate | The organisation can operate the supported airOS management model. | Firmware policy, monitoring, credentials and cybersecurity controls. |
Verified technical information
| Brand | Ubiquiti Networks |
|---|---|
| Product name | PowerBridge M365 |
| Model | PBM365 / PBM-365 naming appears in market references; confirm the exact label on the required unit. |
| Product type | Outdoor carrier-class MIMO wireless bridge |
| Operating frequency | 3650–3675 MHz in the published model specification; local use is region and regulator dependent. |
| Processor | Atheros MIPS 24KC, 400 MHz |
| Memory | 64 MB SDRAM and 8 MB flash |
| Network interface | One 10/100BASE-TX RJ45 Ethernet interface |
| Integrated antenna | 20 dBi dual-linear-polarity panel antenna |
| Antenna beamwidth | 13.5 degrees horizontal and vertical in the published data |
| Maximum power consumption | 8 W |
| Power method | 24 V passive Power over Ethernet; confirm injector and cable pinout before connection. |
| Dimensions | 445 × 416 × 34 mm |
| Weight | 3.82 kg |
| Mounting | Pole-mount kit was specified as included; confirm the contents of any available unit. |
| Operating temperature | Published range: −30°C to +80°C |
| Management | airOS generation and firmware availability must be confirmed for the particular unit. |
| Availability | Contact FourTeck for current UAE sourcing, lifecycle and alternative-product guidance. |
Regulatory, lifecycle and compatibility notice
The 3.65 GHz band is not a universal licence-free Wi-Fi band. Permitted channels, transmit power, registration, licensing and deployment conditions can vary by country and may change over time. A radio sourced for one region should not automatically be assumed legal or configurable for another. The published PBM365 documentation includes United States regulatory references, so UAE deployment must be reviewed against current local requirements before purchase or activation.
The PBM365 is also an earlier-generation product. Buyers should confirm current product status, available firmware, security maintenance, replacement options and interoperability with the far-end device. FourTeck does not recommend treating a used, refurbished or old-stock unit as interchangeable with a new current-generation bridge unless the technical and operational consequences are understood.
A practical purchase and deployment journey
Define the link
Document both locations, distance, mounting height, network purpose, traffic requirement and whether the request is for a new link or a replacement.
Validate spectrum use
Confirm that the intended operating band and equipment region are permitted for the destination and project type.
Review path feasibility
Check line of sight, Fresnel clearance, interference, structural mounting, cable route, grounding and surge protection.
Confirm the bill of materials
Specify radios, injectors, shielded cable, surge devices, brackets, mast hardware and any network-side equipment.
Install and align
Mount securely, align the narrow-beam antennas, configure both endpoints and validate signal, modulation, throughput and stability.
Document operations
Record firmware, IP addresses, credentials, radio settings, installation photographs, test results and replacement strategy.
Directional MIMO performance and link planning
The PBM365 uses a dual-polarity antenna and MIMO radio architecture to transmit and receive multiple spatial streams where channel conditions permit. The integrated design reduces feeder-cable loss because the radio and antenna are housed together. This can simplify a pole installation compared with a separate radio and external antenna, while the relatively narrow beam helps concentrate energy toward the remote endpoint.
A quoted maximum range or throughput is not a design guarantee. Real link behaviour depends on channel width, regulatory power, modulation rate, noise floor, alignment accuracy, obstructions, cable quality and the radio at the far end. A path that looks visually clear can still suffer if the Fresnel zone is blocked by roofs, trees, cranes or terrain. Coastal moisture, heat, dust and wind loading also affect installation decisions in the Gulf region.
For a replacement project, the most useful evidence is the current radio status: signal levels, noise floor, transmit CCQ or quality indicators, channel configuration, firmware, uptime, traffic graphs and fault history. For a new project, FourTeck may request coordinates and mounting heights to determine whether a site survey or path analysis should be included. This protects the buyer from selecting equipment based only on a headline distance figure.
Ethernet, power and installation implications
The PBM365 has a single 10/100 Ethernet port. This is a significant selection point because the wired interface places a practical ceiling on traffic entering or leaving the radio. A modern network carrying high-resolution surveillance, large backups, cloud applications or multiple tenant services may require more capacity than this interface can provide. Buyers should measure real traffic rather than assuming that an earlier wireless link remains adequate for current workloads.
Power is supplied through 24 V passive PoE. Passive PoE differs from standards-based 802.3af, 802.3at and 802.3bt negotiation. Connecting the wrong injector or switch port can lead to non-operation or equipment damage. The existing injector should be identified by label and output specification, and cable pairs should match the documented arrangement. When replacing only one endpoint, both the power component and the grounding path should be inspected rather than reusing unknown accessories automatically.
Outdoor Ethernet should be shielded, UV resistant and routed with drip loops and appropriate surge protection. The radio should be bonded and grounded according to the site electrical design. Pole diameter, bracket condition, wind exposure and access safety must be considered. These installation items may not appear in a simple product quotation, but they can determine whether the link remains stable through seasonal weather and maintenance activity.
Management, firmware and operational control
PBM365 radios belong to an earlier airOS generation. The exact firmware track supported by an available unit should be established before it is added to a production network. A replacement radio may arrive with a different version, configuration state or region code. Administrators should plan for a controlled configuration process, retain a backup of the functioning endpoint and avoid unverified firmware changes during an outage.
Management access should be restricted to trusted networks. Default credentials must not remain in use, and the administration interface should not be directly exposed to the public internet. Where the platform lacks modern identity or encryption features, network segmentation, firewall rules and monitoring can reduce operational risk. The organisation should also decide who owns configuration backups, fault response and periodic inspection.
For a legacy link carrying important services, a migration plan is often more valuable than a single spare. The plan can identify a newer bridge pair, installation window, temporary service arrangement, mounting changes and rollback procedure. FourTeck can help structure this comparison through its network planning and support services, while the buyer retains control over final technical and regulatory approval.
Ideal environments and realistic use cases
Campus building connection
A business may connect a remote office, guard facility or warehouse to a main network where the path is clear and cable construction is undesirable.
Industrial telemetry
Facilities with existing 3.65 GHz infrastructure may carry monitoring or operational data, subject to bandwidth, latency and regulatory requirements.
Legacy wireless ISP sector
An operator may need a compatible subscriber or bridge component while planning a staged platform refresh.
Temporary operational continuity
A matching unit may restore an established link until a modern replacement can be designed, approved and deployed.
The product should not be assumed suitable for public-safety systems, high-availability industrial control, life-safety communications or regulated critical infrastructure without a formal engineering and compliance review. Redundancy, failover and service-level requirements are system-design questions, not features created by buying one radio.
Integration and operational considerations
At the network layer, clarify whether the link will operate as a transparent bridge or use routing. A transparent bridge can extend broadcast domains and VLANs, but it can also carry unwanted traffic or create loops if switching is not designed correctly. Routing can improve segmentation but requires IP planning and may change how services are reached. The correct choice depends on the wider topology.
Quality of service should be considered when voice, camera or business applications share the link. The air interface can become congested even when average traffic looks low. Monitoring should capture peak utilisation, packet loss, retries and latency. Network teams should also document MTU requirements, VLAN tagging, DHCP behaviour and any spanning-tree settings passing across the bridge.
Compatibility with another Ubiquiti radio cannot be inferred from brand alone. Frequency band, airMAX generation, channel plan, firmware and operating mode must align. A newer product may not form a compatible link with the PBM365 even when both are marketed as outdoor bridges. Confirming the exact far-end model is therefore one of the first steps in any replacement quotation.
Buyer questions to resolve before ordering
Is this an exact replacement?
Provide a photograph of the current label, firmware screen and power injector so that model and region assumptions can be reduced.
What must cross the link?
List applications, peak traffic, camera streams, voice use, VLANs and expected growth rather than stating only the number of users.
Is 3.65 GHz permitted?
Confirm the current regulatory basis for operating the device at the destination and intended power level.
What is the physical path?
Share coordinates, distance, mounting heights, obstacle information and photographs from both endpoints.
What accessories are available?
Check the injector, bracket, shielded cable, surge protection, mast and grounding components already on site.
Is a newer pair preferable?
Compare the cost and risk of sourcing one legacy unit against replacing both endpoints with a currently supported platform.
Procurement checklist
☐ Exact label: PBM365 or PBM-365
☐ Required quantity and condition expectation
☐ Destination country and installation address
☐ Regulatory permission for the intended frequency
☐ Existing opposite-end radio model and firmware
☐ Link distance, coordinates and mounting heights
☐ Required throughput and application mix
☐ 24 V passive-PoE injector requirement
☐ Pole bracket and mounting-hardware condition
☐ Shielded outdoor cable and surge protection
☐ Configuration, alignment and testing scope
☐ Warranty and lifecycle confirmation
☐ Migration or replacement-platform assessment
☐ Delivery and site-access coordination
How FourTeck can assist
FourTeck can review a PBM365 request at the level needed for a meaningful quotation. For a simple spare, this may involve checking the label, region, quantity and expected included items. For a failed link, it can include identifying the far-end device, power method, firmware and mounting arrangement. For a new project, the discussion should include path information, network capacity, spectrum status and the possibility of a newer platform.
The goal is to avoid a technically correct part number producing an operationally unsuitable purchase. FourTeck can coordinate product sourcing questions, bill-of-material clarification, installation planning, configuration scope and alternative-product review. Buyers can browse related business networking products or use the FourTeck contact page to submit the link details.
UAE availability and support guidance
Contact FourTeck to confirm current UAE availability for the Ubiquiti PowerBridge M365 PBM365. Because this is an earlier product and a region-sensitive radio, availability may depend on remaining channel stock, condition, exact model marking, quantity, vendor lead time and whether a suitable current alternative is preferred. A quotation should state whether the unit is new, old stock, refurbished or otherwise supplied, together with the included power and mounting components where known.
Delivery and project coordination can be discussed after the exact requirement is confirmed. Installation and configuration should be included in the quotation when required, particularly where antenna alignment, outdoor cabling, surge protection, tower access or regulatory review is involved. FourTeck can coordinate requirements for Dubai, Abu Dhabi, Sharjah and Ajman through one combined project discussion rather than treating each location as a separate product specification. Site conditions and service scope remain subject to review.
GCC availability
Businesses planning a PBM365 replacement or outdoor bridge project elsewhere in the GCC can ask FourTeck for requirement review, quotation coordination and alternative-model guidance. Projects in the United Arab Emirates, Saudi Arabia, Kuwait, Qatar, Bahrain and Oman may be subject to different spectrum rules, equipment approvals, import conditions and service arrangements. The 3.65 GHz operating band must therefore be checked for the destination rather than assumed to be available because the hardware can tune to it.
Share the destination country, exact product label, required quantity, existing network details, desired license or regulatory basis, deployment coordinates and expected schedule. Product availability, firmware options, delivery planning, service visits and vendor lead times can vary by country, model and quantity. FourTeck can help structure the bill of materials and installation scope, but does not imply local stock, fixed customs outcomes or a guaranteed deployment date. For Kuwait-related coordination, buyers may also review FourTeck Kuwait technology support.
Africa availability
FourTeck can assist organisations in Africa that are maintaining legacy Ubiquiti wireless links or comparing replacement technologies for remote connectivity. The review can cover exact radio identity, compatible endpoints, passive-PoE accessories, mounting, configuration, support expectations and a migration path to a current platform. This is useful for service providers, industrial operators, campuses and distributed businesses where an older bridge remains part of the operational network.
Availability and fulfilment may depend on the destination, model condition, quantity, permitted frequency, power standard, shipping route, vendor lead time and local installation conditions. Buyers should provide the destination country, exact requirement, quantity, link distance, preferred deployment schedule and any need for remote or on-site support. FourTeck does not promise local inventory, customs clearance or country-wide field coverage. Regional resources are available through FourTeck Africa, FourTeck Kenya and FourTeck Uganda.
Related products and service options
Current outdoor bridge pair
Consider a matched pair from a currently supported platform when both endpoints can be replaced and higher capacity or easier lifecycle management is required.
Passive-PoE accessories
Confirm voltage, pinout, surge protection and compatibility rather than selecting an injector by connector type alone.
Link survey and alignment
Path review, mounting assessment, radio alignment and acceptance testing can be scoped for links where reliability matters.
Network migration planning
Document the old topology and prepare a controlled change to a new wireless bridge without overlooking VLAN, routing or application dependencies.
Why businesses contact FourTeck
PBM365 enquiries are rarely solved by part number alone. Businesses contact FourTeck to clarify whether they need an exact replacement, a compatible accessory, a full bridge pair or a migration plan. The team can help organise model evidence, link details, network requirements and installation expectations so that suppliers and technical teams are working from the same information.
This practical approach can reduce common procurement errors: ordering the wrong regional variant, overlooking passive-PoE requirements, buying one radio that cannot communicate with the far end, or selecting a legacy platform for a workload that needs modern capacity. FourTeck can coordinate quotation, configuration and installation discussions without making unsupported promises about stock, approval or performance. Learn more about FourTeck business technology assistance.
Frequently asked questions
What is the Ubiquiti PowerBridge M365 PBM365 used for?
It is an outdoor directional MIMO radio designed to create wireless Ethernet links in the 3.65 GHz band, typically between separated sites or within compatible airMAX deployments.
Can the PBM365 be used legally in Dubai?
Use depends on current UAE spectrum and equipment rules. The operating band, region code, power and project type should be reviewed before purchase or activation.
Is the PBM365 a current Ubiquiti product?
It is an earlier-generation model. Buyers should confirm lifecycle status, firmware availability, sourcing condition and suitable modern alternatives with FourTeck.
Does it have a Gigabit Ethernet port?
No. Published specifications identify one 10/100BASE-TX Ethernet interface, which must be considered when sizing link throughput.
What power supply does it require?
The product uses 24 V passive PoE. Confirm the correct injector, polarity and pinout before connecting it to any switch or power source.
Can one PBM365 connect to any Ubiquiti bridge?
Not automatically. Frequency, airMAX generation, channel plan, firmware and operating mode must be compatible with the opposite endpoint.
What information is needed for a quotation?
Provide the exact model label, quantity, destination, existing endpoint details, link distance, mounting information, traffic requirement and required installation scope.
Is a site survey necessary?
A survey or path review is advisable when line of sight, interference, mounting, grounding or capacity cannot be confirmed from available records.
Should I replace one radio or both endpoints?
Replacing one may preserve a legacy link, but replacing both can provide a cleaner route to current capacity and support. The decision depends on compatibility, outage tolerance and budget.
Can FourTeck assist with configuration and installation?
Configuration, alignment, cabling and installation planning can be discussed and included in the quotation where available and appropriate to the project.
Discuss your PBM365 requirement before ordering
Send FourTeck the current radio label, link details, quantity and destination. The team can help determine whether exact-model sourcing, a compatible spare or a newer bridge pair should be quoted.
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