First-class connectivity

Economical way to enhance your HiPer GNSS receiver

Product Info

Extend your HiPer receiver range

R4T-BT is an innovative, external radio designed to offer superior RTK performance with GNSS receivers. This solution features integrated batteries, Bluetooth® communication. It is an economical external UHF radio option for the HiPer GNSS receiver family product line.

Key Features include:

  • Wireless modem configuration and data transfer via Bluetooth
  • Lightweight, only 400 g (14 oz)
  • Long operational time
  • Receive mode: 20 hours
  • Transmit mode: 6 hours at 1 W
  • IP67 certification for use in rugged conditions


Get more out of your existing equipment

If you already have a Topcon HiPer receiver but find yourself on a bigger job site or without a clear line-of-sight, you can extend the range from standard Bluetooth range to miles with this UHF radio. This radio also is compatible with most other GNSS receivers in the market.

Compare to Similar Products:

R4T-BT Specifications

403 – 473 MHz
Channel Spacing*
12.5 / 25 kHz
*Software selectable
Carrier Power
0.1, 0.2, 0.5, 1 W / 50 ohm
Data modem
RS-232 / USB
Data Speed of RS Interface
9600 – 115200 bps
Data Speed of Radio Interface
28800 bps (25 kHz)
USB to serial interface
BT 4.1 wireless connectivity
M12 circular / TNC female
Physical and Environmental
7200 mAh
Power and Electrical
Operation Time
6 hours at
TX 1 W (50 %)
8 hours at
TX 0.5 W (50 %)
20 hours at
RX only
Operating Voltage
12 to 30 VDC
Power Consumption
Charging 7.4 W
Charging + RX 8.4 W
Charging + TX 13.2 W at 1 W RF
Device off 0.46 W
RX 1.32 W
TX 5.8 W at 1 W RF
Operating Temperature
-20ºC to 60ºC
-40ºC to 85ºC
163 x 49 x 49 mm
(h x w x d)
420 g

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