ComNav T300 + CGSurvey User Guide
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5.2.4 Radio Signal Enhancement
By using internal radio transmission the RTK work distance may range from 3-4km.
To extend the RTK work distance, two traditional ways are mainly used, fix transmit
antenna on high place and use external radio to extend the transmit power.
Use External PDL radio
The Maximum transmit power of T300 is 2 Watt, in some case like mountain areas or
urban, the radio signal will be easily weakened by high constructions and other
powerful radio signal, then the external radio is a good solution for those cases. Here,
we will introduce the settings and operations of PDL in Appendix B
To set up external radio mode, link the long whip antenna mounted highly on
another tripod to PDL. Then Connect T300 to PDL with Lemo cable and connect the
external battery with power cable. Finally, choose appropriate channel on PDL (see
chapter 6.1.4 for software operation). The cable connection of PDL is shown in the
figure below.
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