STONEX S900+ - Base UHF Radio Configuration

Stonex S900
+
GNSS Receiver – User Manual 18
3.5.2.1 UHF Radio
S900
+
can have two different radio modules:
• TRM101 as default, with a working frequency between 410MHz and 470MHz
• TRM121 as optional, with two frequency bands: standard 410-470MHz and hopping 902.4-928MHz
For the 410-470MHz band, 8 channels with pre-set frequencies are available for quick configurations, the
frequency values can be edited and saved.
The channel detection function allows one to check if the channel frequencies in the area, are already used for
transmission. In the example below it’s possible to see a transmission on frequency 440.125 MHz, while the
other frequencies are unused. To avoid interference, use another frequency for the transmission. Be sure to
connect the correct UHF antenna for the frequency of the transmission.
The maximum power output for the S900
+
UHF module is 1W, when radio power is set to Low the output is
0.5W.
The radio power affects the transmission range and the battery duration.
Attention! Local regulations can limit the use of UHF radio. Check before starting the transmission.