GNSS Receivers & Accessories
When the built-in radio runs out of range, PL2 picks up the link.
PRECISE PL2: High-Power External UHF Radio. 10 W / 30 W selectable output | 410–470 MHz | Receiver sensitivity better than -116 dBm | -40°C to +85°C
PRECISE PL2 is a high-power external UHF radio that extends the range and stability of RTK correction links when a receiver's built-in radio isn't enough. It carries correction data from base to rover more reliably; it doesn't calculate positions or improve accuracy itself.
Challenge
RTK measurement depends on a continuous stream of correction data from base to rover. On large sites, in hilly terrain, or where buildings and vegetation block line of sight, a receiver's built-in radio, limited by its transmit power, antenna size, and power budget, can lose that link. When it does, the rover drops out of fixed solution, has to re-initialize, and the crew loses time waiting instead of measuring.
Solution
PL2 is an external UHF radio with selectable 10 W or 30 W output across the 410–470 MHz band, with configurable channel spacing, air rate, and modulation to match different sites and equipment. A receiver sensitivity better than -116 dBm, plus adjacent-channel and blocking immunity, keeps the link stable under weak-signal and RF-crowded conditions.
Value
More RTK working range and a more stable correction link when the built-in radio isn't enough, without changing your GNSS receiver or algorithm.
Key Benefits
Why PL2
High-Power UHF Transmission
Selectable 10 W / 30 W transmit power
Extends the practical working range of an RTK correction link on large sites, long linear projects, and remote areas beyond a built-in radio.
0W
Standard Transmit Power
0W
High Transmit Power
Selectable 10 W or 30 W output (13.5 V input) raises the link budget; actual range still depends on terrain, antenna height, and interference.
Configurable UHF Frequency Band
Configurable 410–470 MHz UHF band with flexible channel spacing
Adapts to different regional frequency plans and existing RTK radio configurations rather than locking you into one setup.
410-470MHz
UHF Frequency Coverage
12.5/25kHz
Channel Spacing Options
Covers 410–470 MHz with selectable 12.5 kHz / 25 kHz spacing, subject to local spectrum regulations and licensing.
Multi-Rate Modulation Support
Multiple air rates and modulation modes
Lets you tune the link toward range, stability, or throughput depending on what a given project needs.
4800-19200bps
Air Rate Range
4800–19200 bps air rates with GMSK / 4FSK modulation, matched to your equipment and RF environment.
High-Sensitivity Interference Resistance
Weak-signal reception and interference resistance
Helps maintain the correction link on RF-congested sites, near other UHF equipment, or at the edge of range, resulting in fewer dropped fixes.
-0dBm
Receiver Sensitivity
0dB
Blocking Immunity
Receiver sensitivity better than -116 dBm, with 70 dB blocking immunity and 52 dB adjacent-channel selectivity.
Applications
Where It's Used
Customers
What Our Customers Are Saying
Andrei Popescu
Romania
“On a long pipeline corridor, our rover kept dropping the correction link with the built-in radio. Switching the base to PL2's 30 W output, we stopped losing fix at the far end of the route.”
Camila Rojas
Chile
“Across our open-pit site, PL2's higher power output means our rover holds the correction link at distances that used to drop us into single point.”
Farah Ismail
Malaysia
“We work near a lot of other UHF gear on our sites, and PL2's interference resistance keeps our correction signal solid instead of getting stepped on by everything else broadcasting nearby.”
Chidi Okafor
Nigeria
“Out where there's no cell signal for NTRIP, PL2 gives us a local base-rover UHF link we can actually count on across the whole site.”
Technical Highlights
Engineered Detail
Selectable 10 W / 30 W transmit power for extended-range RTK correction links
410–470 MHz UHF coverage with 12.5 kHz / 25 kHz channel spacing
Multiple air rates (4800–19200 bps) with GMSK / 4FSK modulation
Receiver sensitivity better than -116 dBm with strong adjacent-channel and blocking immunity
Rugged metal housing rated for -40°C to +85°C operation
Technical Specifications
Full Spec Sheet
Overall
Physical & Power
Receiver
Transmitter
Modulator / Demodulator
How It Works
From Setup to Result
The base station generates RTK correction data
A GNSS base station (such as PRECISE BASE2 or another compatible base) generates RTK correction data as usual.
PL2 transmits the correction data at higher power
PL2 connects to the base's data output and transmits the correction data over UHF at the selected power level (10 W or 30 W) and configured frequency, channel spacing, air rate, and modulation.
The rover-side radio receives the correction stream
A compatible receiving radio on the rover side picks up the correction stream, thanks to PL2's high sensitivity and interference resistance, and passes it to the RTK rover receiver.
The rover receiver computes the fixed position
The rover receiver uses the correction data to compute its fixed-solution position, exactly as it would with any other correction source. PL2's role ends at delivering the data reliably; positioning accuracy remains a function of the GNSS receiver and algorithm.
FAQ
Common Questions
No. PL2 is a communication device: it transmits RTK correction data over UHF at higher power and does not calculate positions or improve accuracy itself. Positioning accuracy is determined by the GNSS receiver, its algorithm, and site conditions on both the base and rover side.
PRECISE does not publish a fixed distance figure, because actual range depends on antenna height and gain, terrain, obstructions, frequency and channel configuration, RF interference, base station placement, and local radio regulations. The 10 W / 30 W selectable output increases the link budget, which supports longer working ranges than a typical built-in radio, but it is not a guaranteed distance.
410–470 MHz with selectable 12.5 kHz or 25 kHz channel spacing. Actual frequency and power use must comply with local spectrum regulations and licensing requirements.
4800, 8000, 9600, 16000, and 19200 bps, using GMSK or 4FSK modulation, selectable to balance range, stability, and data throughput based on project conditions.
10.8–15 V DC input, with a TNC antenna connector (50 Ω) and a 5-pin data interface. At 30 W transmit, typical transient power draw is 97 W @ 13.5 V, so a stable external power source is required.
PRECISE has not published a specific IP rating for PL2. The unit is built with a rugged metal housing and rated for -40°C to +85°C operation, but should not be assumed waterproof or dustproof to a specific IP standard beyond what is stated here.
PL2 is designed for seamless integration with PRECISE RTK systems via its data and antenna interfaces. Compatibility with other brands or protocols depends on matching frequency, channel spacing, protocol, data rate, and interface, and this should be confirmed for your specific equipment before deployment.
Get in Touch
Talk to PRECISE About PL2
Tell us about your project and we'll route it to the right PRECISE team.
- Sales: sales@precise-geo.com
- Support: support@precise-geo.com
Give Your RTK Rover the Range Your Project Actually Needs.
Talk to our team about matching PL2's power and configuration to your site.