*RTK GPS Differential Signal Transmission External Radio
DDTHPB series 30W external radio is a almost perfect and professional RTK radio, the design of DDTHPB Radio which takes full consideration of GNSS RTK requirement for field work.
You can setup the transmitting power through the panel(5W/10W/20/30W), choose low transmitting power within short working distance, and choose high transmitting power in long working distance.
 
*HI-TARGET External UHF radio (standard)
Frequency: 460 MHz with 116 channels
Transmitting Power: 5W, 10W, 20W, 30W adjustable
Transmitting Speed: Up to 19.2Kbps
Working Range: 8~10km typical, 15~20km optimal  
 
*Main Features of the RTK GPS Differential Signal Transmission External Radio
1). Protective Buffer Device
      The RTK field surveying always move around, the equipment may drop at anywhere, any angle, the protective buffer devices can reduce the harm to the machine.
2). Protection to Power Reverse Connect
      The thorough power supply protection system will escape the harm to device when you get a reverse connect.
3). 116 Channels
      100 fixed frequency channels and 16 programmable frequency channels, which are more suitable for project site requirement, because there's radio interference in the air everywhere, more than 100 fixed frequency channels are available, so it is not necessary for you to programme it.
4). Lighter Designed
      The radio weight is 1.33KG, which is the lightest external radio among all radio manufacturer.
5). Programmable Battery Discharging
      When battery voltage is too lower, the radio will stop the data transmission,avoid the damage to battery.
6). Optional Transmitting Power
      You can setup the transmitting power through the panel(5W/10W/20/30W), choose low transmitting power within short working distance, and choose high transmitting power in long working distance.
7). Reliable and Stable Data Transmission
      Equiped with advanced technologies to reduce the transmission error rate significantly and improve data link stability.
8). Display of Power
      Display channel number and the power at the same time.

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