Topcon GR-3 - GR-3 Receiver

Introduction
GR-3 Operator’s Manual
1-10
AA battery capacity, and the mode of the receiver and type of modem,
the amount of time the receiver is powered varies.
Figure 1-4. AA Battery Shell (Open)
GR-3 Receiver
The GR-3 receiver’s advanced design reduces the number of cables
required for operation, allowing for more reliable and efficient
surveying. The casing allocates space for two removable,
rechargeable batteries, SD/MMC and SIM card slots, a Bluetooth
wireless technology module, a multi-system receiver board, and a
radio modem communications board.
The GR-3 comes in one of the following configurations:
• with an FH915 Plus TX/RX/RP
1
radio modem
• with an FH915 Plus TX/RX/RP radio modem and a GSM/GPRS
module
• with a 1W Digital UHF TX/RX radio modem, depending on the
country
• with a Digital UHF radio modem and a GSM/GPRS module
• with a Digital UHF TX/RX radio modem and a CDMA module
Other features include two data ports, a power port, and a MINTER
for viewing status and controlling data input/output.
CAUTION
Do not use rechargeable AA batteries.
Do not use the AA battery shell when the radio
modem is in transmitter mode.
1. RP = repeater