Custom GNSS/RTK Wireless Data Link---High Performance Radio Tailored For The Measurement Field Suppliers, Factories

Surveyors utilizing Global Navigation Satellite Systems require rugged radio modem data links for precise positioning information. PDL products are compact, lightweight and offer power efficient operation. They are to use and provide high performance and rugged dependability for the toughest survey environments.

PDL products are designed to easily mount on all standard tripods and range poler. Complete kit solutions are available.

Product Description

PDL High Performance Data Link

High performance data link explicitly designed for survey systems.

19,200 High Baud Rate

High over-the-air link rate significantly extends your field battery life.

Enhanced User Interface

Easily change channels in the field and view status information on the go.

Global Compatibility

Fully compatible with GPS/GNSS RTK equipment worldwide. Complete kit solutions available.

Rugged and Reliable

Waterproof and designed for reliable, all-weather continuous outdoor operations.

Product Models & Configurations

SDR Transceiver Modules & Amplifiers

SDR400 / TR4 / TRL (2watts transceiver built-in module)

Technical Specifications

Parameter High Power Base Low Power Base Rover
General Specifications
DTE - DCE Interface 3 Wire, RS-232, 38.4k Baud Maximum
User Interface On/Off Button*
("Auto Power On" enabled when connected to power source Channel Button with AutoBase™ and AutoRover™ Digital Display Modem/Power Status Indicators RF Power Select Toggle Switch)
On/Off Button*
("Auto Power On" enabled when connected to power source Channel Button with AutoBase™ and AutoRover™ Digital Display Modem/Power Status Indicators)
On/Off Button*
Channel Button with AutoRover™
Digital Display
Modem/Power Status Indicators
Power Specs
External Power 9-16VDC
Internal Battery N/A N/A Lithium Ion Rechargeable
During TX (nominal) 110 Watts (35W) 11 Watts (2W) N/A
During RX (nominal) 1.9 Watts 0.9 Watts 0.3 Watts
Antenna Specs
External Antenna 50 Ohm, BNC 50 Ohm, NMO 50 Ohm, NMO
Modem Specifications
Link Rate / Modulation 19,200 bps / 4-Level FSK (25 kHz)
9,600 bps / 4-Level FSK (12.5 kHz)
9,600 bps / GMSK (25 kHz)
4,800 bps / GMSK (12.5 kHz)
Link Protocols Transparent, Packet Switched, Digipeater, TRIMTALK, Satel Transparent, Packet Switched, Digipeater, TRIMTALK, Satel Transparent, Packet Switched, TRIMTALK, Satel
Forward Error Correction Yes
Radio Specifications
Frequency Bands Refer to price list for available frequency bands.
Frequency Control Synthesized 12.5 kHz Resolution ±2.5ppm Stability
RF Power Select Low/High Factory Programmable N/A
RF Transmitter Output 2/35 Watts Maximum 0.5 - 2 Watts 0 Watts (Receive Only)
Sensitivity -110 dBm BER 10-5
Adjacent Channel Selectivity >65 dB (25kHz), >55 dB (12.5kHz) >60 dB (25kHz), >50 dB (12.5kHz)
Type Certification All models are type accepted and certified for operation in the U.S. and Canada. For detailed information concerning country type certifications, please consult your technical sales representative.
Environmental Specifications
Operating Temperature -22°F to +140°F (-30°C to +60°C) -4°F to +140°F (-20°C to +60°C)
Storage Temperature -67°F to +185°F (-55°C to +85°C) -4°F to +185°F (-20°C to +85°C)
Vibration / Shock ANSI/ASAE EP455
Enclosure IEC 144/855420 I.P.66 (Watertight and Dustproof)
Mechanical Specifications
Dimensions 6.23" W x 2.77" H x 6.58" L
(15.8cm W x 7.0cm H x 16.7 cm L)
8.25" L x 2.40" Diameter
(21.0cm L x 6.1cm Diameter)
8.25" L x 2.40" Diameter
(21.0cm L x 6.1cm Diameter)
Weight 2.96 lbs (1.34 Kg) 0.65 lbs (0.30 Kg) 0.75 lbs (0.34 Kg)
Data/Power Connector 5 Pin LEMO #1 Shell 5 Pin LEMO #0 Shell 5 Pin LEMO #0 Shell
Mount Tripod Bracket 5/8"-11 Range Pole 5/8"-11 Range Pole

Frequently Asked Questions

Q1: What is the maximum over-the-air link rate of the PDL series data link?

A1: The PDL series features a high performance link rate of up to 19,200 Baud (4-Level FSK). This high over-the-air link rate significantly reduces transmission time, thereby extending your field battery life.

Q2: How rugged is the PDL data link for outdoor survey operations?

A2: The PDL data link is designed for all-weather outdoor reliability. It features an IP66 rated enclosure that is completely watertight and dustproof, capable of operating in temperatures ranging from -30°C to +60°C (-22°F to +140°F).

Q3: Is the PDL compatible with different GPS/GNSS RTK equipment brands?

A3: Yes, the PDL system is universally compatible with GPS/GNSS RTK equipment worldwide. It supports multiple link protocols, including Transparent, Packet Switched, TRIMTALK, and Satel, ensuring seamless integration into your existing systems.

Q4: Can I adjust channels or view status information while working in the field?

A4: Yes, the unit comes with an enhanced user interface featuring a dedicated Channel Button with AutoBase™ and AutoRover™ configuration, a digital status display, and clear LED power/modem status indicators to easily update settings and view diagnostics on-site.

Q5: What are the main differences between the High Power Base, Low Power Base, and Rover units?

A5: The High Power Base supports up to 35 Watts transmitter output powered by a 9-16VDC external source. The Low Power Base offers a compact form factor with up to 2 Watts output. The Rover is designed for reception (0 Watts) and is highly mobile, powered by a built-in rechargeable Lithium-Ion battery.

Q6: What is the purpose of Forward Error Correction (FEC) in these systems?

A6: Forward Error Correction is built directly into the PDL modem specifications. It automatically detects and corrects data transmission errors caused by interference, ensuring stable, reliable, and highly accurate data delivery in challenging RF environments.

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