User Manual

DuraFon-SIP Long Range Key Features
Part number: SN-ULTRA-AK20L
An external antenna kit can increase range substantially, especially outdoors &
when multiple building coverage is required.
This antenna allows you keep the base unit inside the building while having the
Optional Antenna Options – Outdoor Antenna
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This antenna allows you keep the base unit inside the building while having the
antenna up and out to an ideal spot for best coverage.
Kit comes with 20m (66feet) LMR-400 low loss coax and 6dBi antenna.
The majority of range improvements seen by this antenna are that by having an
antenna in a better location, it reducing the average number of obstructions
between the handset and base (than from the dBi gain difference compared to
the standard dipole antenna).