Safety information

Before you use your Trimble product, make sure that you have read and understood all safety requirements.

This alert warns of a potential hazard which, if not avoided, could result in severe injury or even death.

This alert warns of a potential hazard or unsafe practice that could result in minor injury or property damage or irretrievable data loss.

An absence of specific alerts does not mean that there are no safety risks involved.

Use and care

This product is designed to withstand the rough treatment and tough environment that typically occurs in construction applications. However, the receiver is a high-precision electronic instrument and should be treated with reasonable care.

Operating or storing the receiver outside the specified temperature range can damage it.

Regulations and safety

Some receiver models with base station capability contain an internal radio-modem for transmission or can transmit through an external data communications radio. Regulations regarding the use of the 403 MHz to 473 MHz radio-modems vary greatly from country to country. In some countries, the unit can be used without obtaining an end-user license. Other countries require end-user licensing. For licensing information, consult your local Trimble dealer.

In Taiwan, the radio-modem operates on the 410 MHz to 473 MHz channel.

All Trimble receiver models described in this documentation are capable of transmitting data through Bluetooth wireless technology.

Bluetooth wireless technology operates in license-free bands.

Before operating a Trimble receiver or cellular modem, determine if authorization or a license to operate the unit is required in your country. It is the responsibility of the end user to obtain an operator's permit or license for the receiver for the location or country of use.

For FCC regulations, see FCC compliance statement.

Type approval

Type approval, or acceptance, covers technical parameters of the equipment related to emissions that can cause interference. Type approval is granted to the manufacturer of the transmission equipment, independent from the operation or licensing of the units. Some countries have unique technical requirements for operation in particular radio-modem frequency bands. To comply with those requirements, Trimble may have modified your equipment to be granted type approval.

Unauthorized modification of the units voids the type approval, the warranty, and the operational license of the equipment.

Contact your sales representative if you wish to review the type approval certificate for the R750 receiver.

Exposure to radio frequency radiation

For 450 MHz radio

Exposure to RF energy is an important safety consideration. The FCC has adopted a safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment as a result of its actions in General Docket 79-144 on March 13, 1986.

Proper use of this radio modem results in exposure below government limits. The following precautions are recommended:

  • DO NOT operate the transmitter when someone is within 45 cm (17.7 inches) of the antenna.

  • DO NOT co-locate (place within 45 cm (17.7 inches)) the radio antenna with any other transmitting antenna.

  • DO NOT operate the transmitter unless all RF connectors are secure and any open connectors are properly terminated.

  • DO NOT operate the equipment near electrical blasting caps or in an explosive atmosphere.

  • All equipment must be properly grounded according to Trimble installation instructions for safe operation.

  • All equipment should be serviced only by a qualified technician.

For license-free 900 MHz radio

For your own safety, and in terms of the RF exposure requirements of the FCC, always observe these precautions:

  • Always maintain a minimum separation distance between yourself and the radiating antenna as specified for each radio frequency range covered above

  • Do not co-locate the antenna with any other transmitting device.

900 MHz radios are not used in Europe.

For Bluetooth radio

The radiated output power of the internal Bluetooth wireless radio and the Wi-Fi radio included in some Trimble receivers is far below the FCC radio frequency exposure limits. Nevertheless, the wireless radio(s) shall be used in such a manner that the Trimble receiver is further from the human body by a distance specified below. The internal wireless radio(s) operate within guidelines found in radio frequency safety standards and recommendations, which reflect the consensus of the scientific community. However, the use of wireless radios may be restricted in some situations or environments, such as on aircraft. If you are unsure of restrictions, you are encouraged to ask for authorization before turning on the wireless radio.

For LTE modem

Safety. Exposure to RF energy is an important safety consideration. The FCC has adopted a safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment as a result of its actions in General Docket 79-144 on March 13, 1986.

Proper use of this radio modem results in exposure below government limits. The following precautions are recommended:

  • DO NOT operate the transmitter when someone is within 28 cm (11 inches) of the antenna.

  • All equipment should be serviced only by a qualified technician.

Installing antennas

For your own safety, and in terms of the RF exposure requirements of the FCC, always observe these precautions:

  • Always maintain a minimum separation distance between yourself and the radiating antenna as specified for each radio frequency range covered above

  • Do not co-locate the antenna with any other transmitting device.

The GNSS receiver and its cabling should be installed in accordance with all national and local electrical codes, regulations, and practices. The receiver and cabling should be installed where they will not become energized as a result of falling nearby power lines, nor be mounted where they are subjected to over-voltage transients, particularly lightning. Such installations require additional protective means that are detailed in national and local electrical codes.

If a Trimble antenna is powered from an external source rather than the GNSS receiver as recommended, that source must be a Limited Power Source (LPS) as defined in IEC 60950-1 IEC 62368-1, 3rd Edition.

Trimble receiver internal radios have been designed to operate with the antennas listed below. Antennas not included in this list are strictly prohibited for use with this device. The required antenna impedance is 50 ohms.

Trimble-approved antennas that can be used (country dependent) are:

  • 450 MHz radio – 0 dBi and 3.6 dBi whip antennas (P/N 123588 - UHF 6" rubber whip). The combo 450/900 whip antenna can also be used with the 450 MHz radio.

    The following antennas ship with an external UHF antenna kit, P/N 56510-xx:

    • 430 MHz to 450 MHz (P/N 24253-44)

    • 450 MHz to 470 MHz (P/N 24253-46)

    • 896 MHz to 940 MHz (P/N 24253-92)

  • 900 MHz radio – 0 dBi and 2.1 dBi whip antennas (P/N 123588 - UHF 6" rubber whip):

To reduce potential radio interference to other users, the antenna type and its gain should be an approved Trimble antenna, so that the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful communication.

Battery safety

Internal lithium-ion battery

Lithium-ion battery fire safety warning: Only use the receiver in these ambient temperature conditions:

  • Only operate the receiver up to +65 °C ambient when the device is powered by an external DC supply and the battery is fully charged or is not being charged.

  • Only operate the receiver up to +48 °C ambient when the device is powered by an external USB-PD battery pack.

  • Only operate the receiver up to +30 °C ambient when the battery is charged by an external DC supply.

Do not damage the rechargeable Lithium-ion battery. A damaged battery can cause an explosion or fire, and can result in personal injury and/or property damage.
To prevent injury or damage:

  • Do not use or charge the battery if it appears to be damaged. Signs of damage include, but are not limited to, discoloration, warping, and leaking battery fluid.

  • Do not expose the battery to fire, high temperature, or direct sunlight.

  • Do not immerse the battery in water.

  • Do not use or store the battery inside a vehicle during hot weather.

  • Do not drop or puncture the battery.

  • Do not open the battery or short-circuit its contacts.

Avoid contact with the rechargeable Lithium-ion battery if it appears to be leaking. Battery fluid is corrosive, and contact with it can result in personal injury and/or property damage.
To prevent injury or damage:

  • If the battery leaks, avoid contact with the battery fluid.

  • If battery fluid gets into your eyes, immediately rinse your eyes with clean water and seek medical attention. Do not rub your eyes!

  • If battery fluid gets onto your skin or clothing, immediately use clean water to wash off the battery fluid.

Charge and use the rechargeable Lithium-ion battery only in strict accordance with the instructions.

To prevent injury or damage:

  • Discontinue charging a battery that gives off extreme heat or a burning odor.

  • Never attempt to remove, replace, or repair the battery yourself.

  • If the battery requires attention, send the receiver to an authorized Trimble Service Center.

Connecting the receiver to a vehicle battery

Use caution when connecting battery cable's clip leads to a vehicle battery. Do not allow any metal object or jewelry to connect (short) the battery's positive (+) terminal to either the negative (-) terminal or the metal of the vehicle connected to the battery. This could result in high current, arcing, and high temperatures, exposing the user to possible injury.

When connecting an external battery, such as a vehicle battery, to the receiver, be sure to use the Trimble cable with proper over-current protection intended for this purpose, to avoid a safety hazard to the user or damage to the product.

Wet locations

This product is not intended to be used outdoors or in a wet location when it is powered by the external AC power supply. The connection is not waterproof and could be subject to electrical shorting.

The external power adapter and its associated power cord and plug are not intended to be installed outdoors, or in a wet location.