Product overview
The JND ST-8303 from Shenzhen JND Technology Co., Ltd is an external active antenna for dual-frequency, multi-system GNSS reception. It supports dual-frequency RTD/RTK positioning arrangements and provides an SMA output for connection to a receiver. Its integration role is the antenna component within a positioning system. The described configuration combines the active antenna, internal signal-conditioning architecture and output connector, with a plug-and-play assembly arrangement intended to simplify incorporation into a dual-frequency high-precision positioning solution.
Internally, the ST-8303 uses a stacked antenna architecture to enable dual-frequency operation, with a wide half-power beamwidth and right-hand circular polarization. High gain is another stated characteristic. Its multistage filters and amplifiers address out-of-band interference arising around the installation location while maintaining stable signal gain at the receiver input. These features define its reception and signal-conditioning role; the interference suppression described specifically concerns out-of-band signals, rather than an unrestricted claim of immunity to interference.
