Buttons

CompactFlash/ USB door catch Figure 3.2 Front panel

Indicator LEDs

The indicator LEDs show the status of logging, power, satellite tracking, and radio reception. For more information, see LED behavior, page 35.

Rear panel

Figure 3.3 shows the rear panel of the receiver. This panel contains a slot for attaching the receiver catch lock, and the catches for the two battery compartments on the bottom panel. The catch lock should already be attached to your receiver.

Receiver catch lock

Battery compartment catches Figure 3.3 Rear panel
To mount the receiver on a pole, attach the receiver bracket to the pole and then insert the catch lock into the bracket. For more information, see Pole-mounted setup, page 22.
The two buttons control data logging, data management, power, and settings. For more information, see Button functions, page 34.

Top panel

Figure 3.4 shows the top panel of the receiver. This panel contains the three power/serial data ports and (TNC) ports for GPS and radio antenna connections.
Power/serial data ports 3
GPS/GNSS antenna TNC ports Figure 3.4 Top panel

Radio antenna

Each port on the top panel is marked with an icon to indicate its main function, as shown below.
Icon Name Port 1 Connections Trimble controller, event marker, or computer

Port 2

Power in, computer, 1PPS, or event marker

Port 3

External radio, power in

GPS/GNSS antenna

Radio communications antenna
The TNC port connectors are color-coded for easy system setup. Connect the yellow GPS/GNSS antenna cable to the yellow TNC port marked GPS, and connect the Quarter-wave whip antenna (rubber duck) to the blue TNC connector marked RADIO. For more information on connecting the receiver, see the following sections in this chapter.

Bottom panel

Figure 3.5 shows the bottom panel of the receiver. This panel contains the USB port, the CompactFlash port, and the compartments for the two internal batteries.

CompactFlash/ USB door

Other equipment, as described below, is optional. To set up the receiver for a postprocessed survey: 1. Set up the tripod with the tribrach and antenna adapter over the survey mark. Instead of a tripod, you can use a range pole with a bipod. However, Trimble recommends that you use a tripod for greater stability. 2. 3. 4. 5. 6. Mount the antenna on the tribrach adapter. Use the tripod clip to hang the receiver on the tripod. Connect the yellow GPS/GNSS antenna cable to the Zephyr antenna. Connect the other end of the GPS/GNSS antenna cable to the yellow TNC port on the receiver. If external power is required, connect a battery with an 0-shell Lemo connection to Port 2 or Port 3 on the receiver.
To securely connect a TNC cable, align the cable connector with the receiver receptacle and thread the cable connector onto the receptacle until snug.
Figure 3.6 shows the receiver postprocessed setup.

Figure 3.6

Note Instead of hanging the receiver on the tripod, you can place the receiver in its base case. Run the antenna cable out of the portal in the side of the base case to the antenna so that the case can stay closed while the receiver is running.

Pole-mounted setup

Do the following: 1. 2. 3. Mount the Zephyr antenna. See page 22. Mount the receiver on the pole. See page 23. Attach the controller. See page 24.
Mounting the Zephyr antenna
1. 2. 3. Screw the antenna to the 5/8-11 threads on the top of the range pole. Connect the TNC-to-TNC GPS cable to the port on the top of the receiver. Connect the TNC-to-TNC GPS cable to the antenna.
Attach the receiver bracket to the pole: a. Place the bracket against the pole, approximately 0.5 m from the ground.
Note If you are using a 1" diameter pole, flip the bracket insert around inside the bracket, as shown in Figure 3.7.

1" pole

Bracket insert

Bracket

Figure 3.7

Receiver bracket insert

b. c. d.
Close the gates of the bracket around the pole. Seat the base of the clip lock in the opposite gate. Lock the clip lock. If the clip lock is too tight to be locked, turn it one or two turns counterclockwise and try again. If it is too loose, turn it one or two turns clockwise and try to lock it again.

2. 3. 4.

Secure any loose cables, using the velcro cable ties.
Run the right-angle connector on the yellow GPS cable through the top or side slot on the backpack, and then connect it to the Zephyr antenna.
Note If you use Bluetooth wireless technology with the Trimble R7 GNSS receiver, omit steps 7 and 8. 7. 8. Connect the DB9-to-0-shell Lemo cable to Port 1 on the receiver. Run the DB9 cable through the side slot of the backpack and then connect it to the controller.
Figure 3.10 shows the backpack setup.

Whip antenna

Zephyr antenna

Controller bracket

Figure 3.10
This section describes optional components that you can use with the receiver.

Radios

Radios are the most common data link for Real-Time Kinematic (RTK) surveying. The receiver is available with an internal receive-only radio in the 450 MHz UHF band. You can also connect an external radio to Port 3, whether or not the internal radio is installed. The receiver supports the following Trimble base radios when using the internal receiver radio:
Trimble HPB450 radio-modem Trimble R6 GPS and Trimble R8 GNSS receiver internal transmitter (base) Trimble PDL450 radio TRIMTALK 450S radio TRIMMARK 3 radio SiteNet 450 radio
Internal radio setup You can configure the receiver optional internal radio using any of the following:
the GPS Configurator software the WinFlash utility the Trimble Survey Controller software
For more information, refer to the GPS Configurator Help, the WinFlash Help, or the Trimble Survey Controller User Guide. By default, the internal UHF radio has only a few frequencies installed. Use the WinFlash utility to configure additional frequencies. For more information, see Adding frequencies for the 450 MHz internal radio, page 58. External radio setup To use an external radio with the receiver, you need to set up an external power source for the radio: 1. 2. Connect one end of the yellow GPS antenna cable to the yellow TNC port on the receiver. Connect the other end of the GPS antenna cable to one of the following antennas: Zephyr or Zephyr Geodetic Zephyr 2 or Zephyr Geodetic 2 (Trimble R7 GNSS receiver only)
Trimble R7/5700 GPS and Trimble R7 GNSS Receivers User Guide 27

Other system components

3. 4. 5.
Connect the external radio to Port 3 on the receiver. Connect a radio antenna to the external radio. Connect an external power source to Port 2 on the receiver. Note External rover radios must have their own power source because the internal Lithium-ion batteries do not supply enough voltage. Alternatively, supply external power to Port 2 of the receiver, and enable power out on Port 3. Base (transmit/receive) radios must have their own power source because of their high power consumption. Alternatively, you can apply external power directly to the radio, if it supports it. You can use a 10 Ah battery, a 6 Ah battery, or camcorder batteries. The choice of power supply depends on the application, and whether you are using the radio as a base or rover radio. For more information about the power capabilities of the receiver, see Batteries and power, page 38.

CAUTION The receiver allows for more than 500 files on the CompactFlash card, regardless of the cards capacity. The file names must be in 8.3 format, otherwise, files copied to the CompactFlash card may cause data corruption or loss of data when logging.
CAUTION If the card does not seat into the pins correctly, do not use force or you may damage the pins. Remove the card and carefully reinsert it.

General Operation

Front panel controls Button functions LED behavior Starting and stopping the receiver Logging data Resetting to defaults Formatting a CompactFlash card Batteries and power
All the controls that you need for general operation of the receiver are located on the front panel. For more information about other panels of the receiver, see Parts of the receiver, page 16.

Front panel controls

Data button [D] Power button [P]
SV Tracking LED Logging/ Memory LED Radio/Event Marker LED

Battery LEDs

Figure 4.1
Controls on the front panel of the receiver

Button functions

The receiver has only two buttons: in this manual, the Power button is represented by [P], and the Data button by [D]. Press [P] to switch the receiver on or off, and to perform data management functions such as deleting files or resetting the receiver. Press [D] to start or stop logging. This button is only effective when the receiver is switched on and has completed any power-up and initialization tasks. Table 4.1 describes the main functions of the two buttons.

Table 4.1

Action Turn on the receiver Turn off the receiver Start logging data internally Stop logging data internally Delete the ephemeris file Reset the receiver to factory defaults Delete application files Format the CompactFlash card Hold for 15 seconds Hold for 15 seconds Hold for 30 seconds Hold for 30 seconds
Power button Press Hold for 2 seconds Press Hold for 2 seconds Data button
Note The term press means to press the button and release it immediately. The term hold means to press the button and hold it down for the given time.
34 Trimble R7/5700 GPS and Trimble R7 GNSS Receivers User Guide
The five LEDs on the top panel of the receiver indicate various operating conditions. Generally, a lit or slowly flashing LED indicates normal operation, an LED that is flashing quickly indicates a condition that may require attention, and an unlit LED indicates that no operation is occurring. The following table defines each possible LED state.

The term Flash Slow flash Fast flash On Off means that the LED is lit briefly every 3 seconds alternates slowly between being lit and unlit alternates rapidly between being lit and unlit is lit is unlit

Logging/memory LED

The yellow Logging/memory LED below the d button indicates the status of data logging and memory usage.
Behavior On Slow flash Meaning Data is being logged. Enough FastStatic data has been logged. Alternatively, if the red SV Tracking LED is on solid at the same time and the other LEDs are off, the receiver is in Monitor mode. Turn off the power and then turn it on again to return to normal operation. Data is being logged but memory is low. The receiver is in Sleep mode, and will wake up five minutes before the scheduled start time of a timed application file. Data is not being logged.
Fast flash Very slow flash Off

SV Tracking LED

The red SV Tracking LED below the SV icon tracking.
Behavior Slow flash Fast flash Off On Meaning Tracking four or more satellites. Tracking three or fewer satellites. Not tracking any satellites. The receiver is in Monitor mode, and is checking for new firmware to install.
indicates the status of satellite

LED behavior

Radio LED
The green Radio LED below the Radio icon output.
Behavior Slow flash Meaning A data packet or event marker has been received.
indicates the status of data input and
Battery 1 LED and battery 2 LED
The Battery LEDs inside the two Battery icons indicate the status of the two internal batteries, or the power sources connected on Ports 2 and 3. By default, each battery LED indicates the status of the external power source on the corresponding port. If no external source is detected, each LED indicates the status of an internal battery. The color of the LED indicates whether the power source is currently in use (green) or is on standby (yellow).
Color Green Meaning Power source is in use Behavior On Fast flash Off Yellow Power source is on standby On Fast flash Flash Off Meaning Healthy Low power No power source is present Healthy Low power Dead No power source is present
Starting and stopping the receiver
To turn on the receiver, press [P]. To turn off the receiver, hold down [P]. The SV LED turns on, and then turns off after two second. When the LED turns off, release [P]; the receiver turns off.

Logging data

You can log data to the CompactFlash card in the receiver, or to the survey device.

Logging internally

The receiver logs GPS data internally on a CompactFlash card. Use Trimble Business Center to download the *.T01 formatted files directly from the CompactFlash card to the office computer. Alternatively, you can use the Trimble Data Transfer utility to transfer logged data files to your office computer. The transferred files are in Trimble DAT (.dat) format.

Data is logged using the current logging settings configured in the receiver. Data files logged internally are named automatically. To begin internal logging, press [D]. The Logging/memory LED lights up. To stop logging, hold down [D] for at least two seconds. The Logging/memory LED turns off. Note When the CompactFlash card is full, if auto-delete is not enabled, the receiver stops logging data, and the Logging/memory LED turns off. Existing data files are not overwritten. Approximate storage requirements for different logging rates are shown below. The values shown are for a one-hour logging session with six satellites visible.
Logging rate 10 Hz 1 Hz 5 seconds 15 seconds Minimum memory required 2,588 KB 335 KB 87 KB 37 KB
Note If power is lost, or the CompactFlash card is removed while logging, the file system is designed so that a maximum of ten seconds of data will be lost, regardless of the logging rate.
Logging to a Trimble controller
When the receiver is connected to a Trimble controller, you can log GPS data from the receiver to the controller, or to a PC card inserted in the controller. When you use a Trimble controller, you do not use the receivers controls. Instead, you use the controller functions to set logging options, specify filenames, and to control when logging occurs. Data is stored in job files, which can be transferred to your office computer using the Trimble Data Transfer utility. For more information on logging data from a receiver using a Trimble controller, refer to the user guide for your particular controller.

Resetting to defaults

CAUTION If you hold down [P] for more than 30 seconds, any application files stored in the receiver are deleted and the CompactFlash card is reformatted.
To reset the receiver to its factory default settings, hold down [P] for at least 15 seconds. Resetting the receiver to its factory defaults also deletes any ephemeris file in the receiver. For more information, see Chapter 9, Default Settings.
Formatting a CompactFlash card
CAUTION Formatting a CompactFlash card while it is in the receiver deletes all the data files on the card.
To format a CompactFlash card for use in the receiver, insert the card in the CompactFlash port and then hold down [P] for at least 30 seconds. After 15 seconds, the receiver is reset to its factory defaults, and any ephemeris file is deleted. After 30 seconds, any files stored on the card are deleted and the CompactFlash card is reformatted. Note When you use [P] to format the CompactFlash card, a quick format is performed. A quick format reformats the card for use with the receiver and deletes all data on the card. A full format checks the card for errors or bad sectors, and is only necessary if the card is corrupted. To perform a full format, use the GPS Configurator software. For more information, see The GPS Configurator software, page 56.

Storing application files
You can store application files that you create in the GPS Configurator software on the receiver and on the computer. For example, each file can represent a different user sharing the same receiver, or a particular mode of operation or survey style. Saving application files on your computer as well as in your receiver is optional, but it is useful because:
it gives you a permanent copy of the settings you have sent to a receiver, for audit or your own reference. you can use the same file to configure multiple receivers identically. you can use an existing application file as a template to create other application files with similar settings.

Naming application files

The application filename in the office computer and in the receiver is always the same. This makes it easier to recognize and keep track of your application files. When you change the name of the application file in the receiver, this changes the application filename on your computer. When you transfer an application file from the receiver and save it to the computer, the system renames the file to match the internal receiver file. However, if you use Windows Explorer, for example, to change the.cfg filename on the computer, this does not change the internal receiver filename. This means that the GPS receiver does not recognize the change to the filename on the computer.
Applying application files

Transferring Data

Connecting to the office computer Transferring data Transferring files from a CompactFlash card Deleting files in the receiver Supported file types
The receiver keeps satellite measurements and other data in files stored on a CompactFlash card. These files cannot be processed until you transfer them to your office computer. Note The receiver supports more than 500 files on the CompactFlash cards. When you return to the office with a completed survey, transfer the field data to a computer that has the Trimble Business Center software installed. You can then process the survey data in the Trimble Business Center software to produce baselines and coordinates.
Connecting to the office computer
The receiver has three serial (COM) ports and one USB port to connect to the office computer. A USB connection is up to ten times faster than normal serial communications. Use the standard power/serial data cable to connect the receiver to the computer, as shown in Figure 6.1.

Serial (COM) port Port 2

Figure 6.1
Connecting the receiver to a computer for serial data transfer

USB cable

USB port

Figure 6.2

Connecting the receiver to a computer for USB data transfer
Note When the receiver is connected to a USB port on a computer, it is treated as a peripheral device of the computer. If the receiver is unplugged or turned off, a warning message appears on the computer.

Trimble Geomatics Office software cannot directly import the raw receiver files (.T01). They must be converted to the Trimble DAT file format for use.
CAUTION The conversion of the raw receiver data (.T01) files into the Trimble DAT file format results in the loss of any Glonass data that was collected by a Trimble R7 GNSS receiver.
When you use the Data Transfer utility to transfer data files from the CompactFlash card while it is still inserted in the receiver, the Data Transfer utility converts the raw receiver data (.T01) files you select into the Trimble DAT file format. However, if you connect the CompactFlash card to your computer and then copy or move files to your computer, it treats the card like any other disk drive, and transfers the files without converting them. You need to convert these raw receiver files to DAT format files before you can use them on your office computer. You can convert receiver data files using a Windows Explorer extension, which is installed on your computer when you install the Data Transfer utility. Note Although this extension is only available if you have the Data Transfer utility installed, you do not have to run the Data Transfer utility to use it. To convert a.T01 file on your office computer into the DAT format:
Right-click the file, and select Convert to DAT format from the shortcut menu:
The DAT File Conversion dialog appears while the file is converted. When the dialog disappears, the file conversion is complete. A new file with the same filename but a.dat extension appears in the same folder as the.T01 file.
Deleting files in the receiver
You can delete files stored in the receiver at any time. Do one of the following:
Use the Data Transfer utility or the Trimble Business Center software. Use the controller. Turn on the receiver and then hold down [P] for 30 seconds. When you use this method, all data is deleted, and the CompactFlash card is reformatted. Use the GPS Configurator software.
On your office computer, open Windows Explorer and navigate to the location of the.T01 file.

Supported file types

Default settings

These settings are defined in the default application file.
Function SV Enable General Controls: Elevation mask PDOP mask RTK positioning mode Motion Power Output 3 1PPS time tags ASCII time tags Serial Port 1: Baud rate Format Flow control Serial Port 2: Baud rate Format Serial Port 3: Baud rate Format Flow control Input Setup: Streamed output RT17/Binary CMR output RTCM output Reference position: Latitude Longitude Altitude Antenna: Type Height (true vertical) Group Measurement method Logging rate Position rate Measurement rate Station Factory Default All SVs enabled Low Latency Kinematic Disabled Off Off 38400 8-None-1 None 38400 8-None-8-None-1 None Any All Ports Off All Types Off Offset = 00 All Ports Off [Static] CMR: cref ID 0000 RTCM: Type 1 ID 0 0.00 m HAE Unknown external 0.00 m All Bottom of antenna mount 15 sec 5 min 10 Hz
NMEA/ASCII (all messages)
To reset the receiver to its factory defaults, do one of the following:
On the receiver, press and hold down [P] for 15 seconds. In the GPS Configurator software, select Connect to Receiver and then click Reset receiver in the General tab.

Examples

The following examples show how the receiver uses the default settings and special application files in various situations.

Default behavior

The factory defaults are applied whenever you start the receiver. If a power up file is present in the receiver, its settings are applied immediately after the default settings, so you can use a power up file to define your own set of defaults.
When you turn the receiver on and it is the first time that the receiver has been used then logging settings are the factory defaults and logging does not begin automatically does not begin automatically does not begin automatically
you have reset the receiver to its the factory defaults, or factory defaults those in the power up filea you have performed a full reset the factory defaults, because resetting deletes any power up file
A factory default setting is used only if the setting is not defined in the power up file.

Power up settings

When you turn the receiver off, any changes that you have made to logging settings are lost and these settings are returned to the factory defaults. Other settings remain as defined in the current file. The next time you turn on the receiver, the receiver checks for a power up file and, if one is present, applies the settings in this file.

P3 (Event marker) P2 (1PPS out)
P4 (Port 2 extension) P1 (To Port 2)

Figure 10.3

In addition, the breakout box includes a Lemo 7-pin connector to extend serial communications and/or power on Port 2. Because the BNC connectors are used to service the event marker and 1PPS features, pins 4 (1PPS) and 5 (Event Marker) are inactive on the Lemo connector. For Port 2 pinouts, see Port 1, 2, and 3 connectors, page 72. For more information on 1PPS input and event marker output, see Chapter 11, Event Marker Input and 1PPS Output. Table 10.3 gives pinout information for the event marker/1PPS cable, which is supplied with the receiver. The event marker/1PPS cable is only used with the receiver connectors labeled Port 1 ( for event marker output) and Port 2.
Table 10.3 Event marker/1PPS cable pinouts
Direction P2: BNC-F connector (1PPS) Pin P3: BNC-F connector (Event marker) Pin P4: Lemo 7s Port 2 extension
P1: Lemo 7-Pin Port 2 receiver
receiver function Signal ground GND Serial data out (TXD2) 1PPS Event Marker Power IN (+) Serial data in (RXD2)
Pin Function 1 Signal ground GND Serial data in (TXD2) No Connect No Connect Power IN (+) Serial data out (RXD2)
Center pin Center pin GND GND
The antenna that a receiver uses to collect satellite signals is sometimes called a GPS antenna to distinguish it from a radio antenna. Radio antennas are used for communication between receivers and external networks or systems. Note Older models of antennas, such as Choke Ring or Micro-Centered L1/L2, have different power requirements. The receiver can adjust the antenna power output when you designate the appropriate antenna in the GPS Configurator software. For more information, see Antennas, page 29. Connect the receiver to its GPS antenna using the yellow TNC connector. Use a coaxial cable with a right-angle TNC plug at the antenna end.
If the antenna cable length is up to 15 meters (45 feet) up to 30 meters (100 feet) over 30 meters (100 feet) use RG-58 cable RG-214 cable one of the following: in-line amplifier semi-rigid coaxial cable a low-loss cable assembly

GPS antennas and cables

Event Marker Input and 1PPS Output
Event marker input 1PPS output
The receiver can accept event marker input on Port 1 and port 2, and can generate 1PPS output on Port 2.

Event marker input

Use event marker input to log a precise GPS time tag whenever an externally generated pulse is received, such as one generated at the time of the shutter closing from a photogrammetric camera. The event is triggered when the source pulse voltage transitions between 1.0 V DC and 2.0 V DC in less than 100 nsec. Trimble recommends that you use TTL level inputs. You can configure the receiver to recognize either a positive (rising) or negative ( falling) voltage as the leading edge of a pulse. The accuracy of the associated time tag recorded for an event is determined by the GPS accuracy (typically less than 1 sec.). The receiver records each event in the current data file. This record includes the port on which the event was received.

Table 12.1

Selection Version 2 USCG 9-3 RTCM/RTK 2.2+2.3 RTK Only 2.2+2.3 RTCM/RTK 2.3 RTK Only 2.3 RTCM/RTK 2.2 RTK Only 2.2 RTCM/RTK 2.1 RTK Only 2.1 RTCM/RTK 3.1

RTCM output

Message 3 9-22 59

Message scheduling

Table 12.2 describes the frequency at which messages are generated when they are enabled in a base receiver.

Table 12.2

Type 9-59-sub, 1013
Frequency Every second The 10th second after the first measurement, then every 10 seconds after that Every second Every second Every second The 5th second after the first measurement, then every 10 seconds after that The 4th second after the first measurement, then every 10 seconds after that The 4th second after the first measurement, then every 10 seconds after that The 5th second after the first measurement, then every 10 seconds after that Every second Every 10 seconds Every 10 seconds Every 300 seconds

NMEA-0183 Output

NMEA-0183 Outputs Common Message Elements NMEA Messages
This appendix describes the formats of the subset of NMEA-0183 messages that are available for output by the Trimble R6/R7 GPS receivers and the Trimble R8 GNSS receiver. For a copy of the NMEA-0183 Standard, go to the National Marine Electronics Association website at www.nmea.org.

NMEA-0183 Outputs

When NMEA-0183 output is enabled, a subset of NMEA-0183 messages can be output to external instruments and equipment connected to the Trimble receiver serial ports. These NMEA-0183 messages let external devices use selected data collected or computed by the receiver. All messages conform to the NMEA-0183 version 3.01 format. All begin with $ and end with a carriage return and a line feed. Data fields follow comma (,) delimiters and are variable in length. Null fields still follow comma (,) delimiters but contain no information. An asterisk (*) delimiter and checksum value follow the last field of data contained in an NMEA-0183 message. The checksum is the 8-bit exclusive OR of all characters in the message, including the commas between fields, but not including the $ and asterisk delimiters. The hexadecimal result is converted to two ASCII characters (09, AF). The most significant character appears first. The following table summarizes the set of NMEA messages supported by the receiver, and shows the page where detailed information about each message can be found.
Message AVR GGA GSA GST GSV HDT PTNL,GGK PTNL,GGK_SYNC PTNL,PJK PTNL,PJT PTNL,VGK PTNL,VHD RMC ROT VTG ZDA Function Time, yaw, tilt, range, mode, PDOP, and number of SVs for Moving Baseline RTK Time, position, and fix related data GNSS DOP and active satellites Position error statistics Number of SVs in view, PRN, elevation, azimuth, and SNR Heading from True North Time, position, position type and DOP values Time, synchronized position, position type and DOP values Local coordinate position output Projection type Time, locator vector, type and DOP values Heading Information Position, Velocity, and Time Rate of turn Actual track made good and speed over ground UTC day, month, and year, and local time zone offset Page 96 96

The receiver is tracking fewer Wait until the SV Tracking LED is than four satellites. flashing slowly. The radio antenna cable and Make sure that the GPS antenna GPS antenna cable are mixed cable (with the yellow over-mould) is connected between the yellow TNC up. connector marked GPS and the GPS antenna.

Receiver issues

The following table describes some possible receiver issues, possible causes, and how to solve them.
Issue Possible cause Solution Check the charge on the external battery, and check the fuse if applicable. Replace the battery if necessary. Check the charge on the internal batteries and replace if necessary. Ensure battery contacts are clean. External power not properly connected. Check that the Lemo connection is seated properly. Check for broken or bent pins in the connector. Faulty power cable. Try a different cable. Check pinouts with multimeter to ensure internal wiring is intact. Receiver does not log Insufficient internal memory. data. Delete old files using the GPS Configurator or Trimble Survey Controller software, or by holding down [P] for 30 seconds. Wait until the SV Tracking LED is flashing slowly. Power down the receiver and power back up. Hold down [P] for 30 seconds. If you want to retain data files, remove the CompactFlash card first. Using the Trimble Survey Controller software, connect to the reference radio through the receiver. If no connection is made, connect directly to the radio and change the port settings. Try to connect through the receiver again to ensure that they are communicating.
The receiver does not External power too low. turn on.

Internal power too low.

The receiver is tracking fewer than four satellites. The receiver is not responding. Receiver needs soft reset. Receiver needs full reset.
Reference receiver is not broadcasting.
Port settings between reference receiver and radio are incorrect.
Faulty cable between receiver Try a different cable. and radio. Examine the ports for missing pins. Use a multimeter to check pinouts. No power to radio. If the radio has its own power supply, check the charge and connections.

radio antenna port 12, 19 Radio LED 36 radio noise emissions Canada 2 RADIO port icon 18 Trimble R7 GPS receiver 19 radios internal 27 TRIMMARK TRIMTALK 450S 27 raw observations 54 real time, configuring receiver in 44 rear panel 17 receiver bracket 23 catch lock 17 data files 52 firmware files 54 receiver setup 1531 red LED 35 reference position, default 66 reference receiver, charging batteries 40 reference station, default settings 66 reformatting CompactFlash card 38
submeter-level accuracy 12 supported file types 54 Survey Controller software See Trimble Survey Controller software SV enabling, default settings 66 SV Tracking LED 35 switching the receiver on and off 34, 36
T01 files 53 technical specifications 63 temperature operating range 4, 19, 62 storage range 4, 19, 62 time tag definition 79 time values in NMEA messages 87 Time, Position, and Fix Related Data message 88 Time, Position, and Fix Related Data, GGA message 88 Time, Position, Position Type, DOP message 91 Time, Synchronized Position, Position Type, DOP message 92 timed application file 45 timed application files 35, 45, 69 TNC connector 12, 75 TNC ports 12 top panel 18 tracking specifications 63 transceiver See Trimble R6/R8 internal transmitter transferring data files from CompactFlash card 52 data files from the receiver 49 Trimble Binary Streamed Output See GSOF output Trimble Format (CMR) See CMR format Trimble R6/R8 receiver internal transmitter 27 Trimble R7 receiver backpack setup 25 buttons 34 factory default settings 65 features 12 internal radio 27 LEDs 35 maximum number of application files 44 output formats 63 parts of the receiver 1619 pole-mounted setup 22 postprocessed setup 21 resetting to factory defaults 34, 67 setup 1531 specifications 6163
turning on and off 34, 36 upgrading firmware 42, 57 use and care 12 Trimble R-track technology 12 Trimble Survey Controller software automatically enabling power output 42 logging data to 37 Trimble web site 9, 28 TRIMMARK 3 radio 27 TRIMTALK radio 27 troubleshooting 9798 TSCe controller deleting files on receiver with 53 power supply 41 turning the receiver on and off 34, 36 Type I CompactFlash cards 12, 30 types of files supported 54
U.S. Department of Commerce 13 Universal Time Coordinated (UTC) See UTC upgrading receiver firmware 42, 57 USB cable, connecting for data transfer 51 USB port 11, 12, 19, 63 use and care of Trimble R7 GPS receiver 12 UTC Day, Month, and Year, and Local Time Zone Offset message 96 UTC, NMEA time values 87
Vector Information message 94 voltage minimum required to charge internal batteries 39 of internal batteries 42 VTG message 96
WAAS Trimble R7 GPS receiver 12 waking up, from Sleep mode 46 website 9 weight Trimble R7 GPS receiver 62 WinFlash utility installing 57 Trimble R6/R8 receiver 56
upgrading receiver firmware with 57