Manhole Antenna - New Design - Greatly Improved Performance

This antenna was designed specifically for use with sewer and overflow monitoring units. Sites where the telemetry is underground, and often covered with a metal manhole, need an easily installable but effective above ground antenna. After much experimenting and testing the Harvest team came up with the following solution.

Key Features

• Available in monoband cellular, either 850MHz (North America) or 900MHz (rest of world)
• 3dBi gain monoband tuned loop antenna
• Low profile 120mm (4.72") diameter x 17mm (0.67") max height (same height as cats eye road marker)
• Fit to a steel manhole lid with a single 10mm hole which can be drilled with standard cordless drill
• Very rugged moulded urethane with 10mm stainless steel coach bolt to withstand highway traffic
• Available in white
• They can be made with 2m (6.5') RG58 coaxial cable
• They come fitted with SMB connector to fit through the 10mm hole
• They are supplied with SMA to SMB adaptor for connecting to the modem
• 100mm (4") stainless steel coach bolt protects cable during manhole opening