Stonex S9III Plus GNSS Receiver – User Manual
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S9III PLUS adopts a GPRS/GSM all-direction transmitting and receiving
antenna with a frequency in the ranges 824-960 MHz and 1710-2170MHz. It
is suitable for field surveying, light and durable, the length is about 21.5 cm,
the gain is around 1.8-2.2/2.1-3 dBi.
For S9III PLUS, it is possible to use like additional accessory (not included in
the standard configuration) a high-gain UHF all-directional transmitting
antenna for base setup. The available ranges are: 410-430 MHz, 430-450 MHz
and 450-470 MHz. The antenna is around 1 meter long and can be mounted
on a retractable pole or a tripod for better performance. The higher the
antenna is, the larger cover area does it has for the radio signal. The gain of
the antenna is 5 dBi.
Fig. 3.9 –External radio antenna (not in scale)
Fig. 3.7 – built-in radio antenna (not in scale)
Fig. 3.8 – GPRS/CDMA2000/WCDMA antenna (not in scale)
