Compatibility check 1: clear line of sight and Fresnel-zone clearance
For point-to-point wireless bridges, record the exact value, standard, measurement, or supported condition behind clear line of sight and Fresnel-zone clearance before checkout. A broad category label does not prove that the selected variant fits. Confirm the manufacturer, complete model, hardware revision, region, port layout, firmware branch, and included power hardware rather than assuming similarly named products share limits.
Compatibility check 2: distance and required throughput
Test distance and required throughput across the actual topology, client mix, cable path, traffic load, and recovery window—not a product-photo setup. If this point-to-point wireless bridges fit depends on specific cabling, transceivers, power budgets, adapters, controller software, service tiers, or client capabilities, confirm the exact part, service, or behavior as part of compatibility.
Compatibility checks 3 and 4: mount rigidity and alignment; PoE, grounding, and remote-side switching
For point-to-point wireless bridges, mount rigidity and alignment and PoE, grounding, and remote-side switching are the limiting conditions most likely to surface only after installation. Measure the smallest clearance, weakest connection, least compatible user or device, and the most demanding normal task. Passing an ideal bench test is not enough.
Prove fit in a reversible order
Use this sequence: survey both mounting points, pair and update the radios on a bench, align them outdoors, then add the remote switch or access point. Keep labels, packaging, manuals, and the previous system until the product works through normal use and a recovery test. Photograph wiring, measurements, or assembly states that would be difficult to reconstruct.
A failed fit check is a stop signal
Stop when trees or structures obstruct the radio path, lightning exposure cannot be managed, or buried fiber is feasible and long-term reliability matters more. Do not repair a fundamental mismatch with unapproved accessories, copied settings, or community anecdotes. Use buried ethernet or fiber links when it meets the job with a clearer compatibility path.