Product overview
The JND ST-48-AGL28 from Shenzhen JND Technology Co., Ltd is an active external GNSS antenna for receiving satellite radio signals and making them usable by a GNSS receiver. Its single-frequency design supports GPS, BDS and GLONASS, combining multiple satellite systems within that frequency scope. Internally, the antenna incorporates a filter and amplifier architecture intended to improve radio-frequency sensitivity, resistance to interference and reception. High gain and circular polarization are additional characteristics of the antenna design.
The physical assembly combines a compact form with a plastic enclosure that has waterproof characteristics. Installation uses a magnet or 3M adhesive at the antenna base, providing alternative ways to secure the external antenna. The product is a receiver-facing antenna component rather than a flight platform or airframe kit. Its integration role is satellite-signal reception for a GNSS receiver, with the filter and amplifier built into the antenna and the mounting arrangement located underneath the housing.
