RTK ROVER TRIMBLE R4 USED TRIMBLE GPS FOR SALE
Features
· Reliable 72-channel GNSS system
Shop for pixel slate at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up. Compact, powerful, and connected, the Trimble® Slate Controller combines the convenience and ease-of-use of a smartphone with the durability for which Trimble is known. Its slim, ergonomic design is easy to grasp and its screen provides superior sunlight readability enabling all-day use by hard-working survey professionals.
· Everything you need to perform a basic survey campaign
· Rugged system design and cable-free convenience
· Scalable from postprocessing to VRS to multi-constellation RTK configurations
· Partner with Trimble Survey Controller field software and TSC2 controller
The Trimble R4 is designed for surveyors looking for straightforward, integrated GNSS technology that performs under even the most rigorous conditions. Lightweight, ergonomic and cable-free, the Trimble R4 with Trimble Survey Controller software provides the ease of use of an integrated receiver with the rugged reliability of the popular Trimble TSC2 controller.
The ideal solution for surveyors that need proven, straightforward GPS technology that performs under the most rigorous conditions, the Trimble R4 with Trimble Survey Controller software is a GPS solution you can count on when every point counts.
DEPENDABLE WHEN EVERY POINT COUNTS
Designed for surveyors looking for easy-to-use GNSS technology, the Trimble? R4 GNSS System performs under even the most rigorous conditions. GNSS support upgrade options, integrated Trimble R-Track™ satellite tracking technology, and a straightforward system design result in a system that is flexible, reliable, and rugged.
A COMPLETE GNSS SYSTEM
Lightweight, convenient and cable-free, the Trimble R4 GNSS system with Trimble Access™ field software provides the ease of use of an integrated receiver and everything you need to perform a basic survey campaign.
The dual-frequency antenna enhances tracking capacity and delivers sub-millimeter phase center stability for precise results in demanding conditions. Internally powered with removable batteries, this system provides a full working day of uninterrupted field operation.
ADVAN CED TRIMBLE R-TRACK TECHNOLOGY
The Trimble R4, powered with a Trimble Maxwell™ 6 chip with 220 channels, delivers the accuracy and reliability required for precision surveying with superior tracking and RTK performance. With GPS L2C and the Japanese QZSS support included, you can track more satellites and measure more successfully in challenging environments. L2C provides more than just additional signals – the advanced signal structure provides better strength for more reliable satellite tracking.
Trimble R-Track satellite tracking technology delivers reliable, precise positioning performance. Trimble R-Track with Signal Prediction™ compensates for intermittent or marginal RTK correction signals, enabling extended precision operation after an RTK signal is interrupted.
The CMRx communications protocol provides correction compression for optimized bandwidth and full utilization all of the satellites in view, giving you reliable positioning performance.
CHOOSE THE LEVEL OF GNSS SUPPORT YOU REQUIRE TODAY
Choose the level of GNSS support you require today with the flexible upgrade options available on the Trimble R4. Founded on proven GNSS technology, the Trimble R4 comes standard with GPS L1, L2, L2C and QZSS. Beyond this standard GNSS support, the Trimble R4 offers upgrades to GLONASS, Galileo, and BeiDou (COMPASS)--just choose what you need.
![Controller Controller](/uploads/1/2/3/8/123828611/876206034.jpg)
FUNCTIONS AS A VRS ROVER, RT K ROVER, OR FIELD BASE STATION
Use as a lightweight rover for static surveying or RTK. The Trimble R4 is also completely compatible with Trimble VRS™solutions, creating a VRS rover for use inside real-time networks. With a built-in 450 MHz receive-only radio or a fully integrated GSM/GPRS radio, this system can be adapted to meet a variety of needs. As a base station, the Trimble R4 with the integrated UHF transmit option is rugged, weather-resistant and compatible with a range of radio solutions.
A DEDICATE D, RELIABLE GNSS FIELD SOLUTION
Pair the Trimble R4 with Trimble Access and the Trimble Slate Controller1 for a dedicated GNSS solution that is effective for both real time and post processed GNSS surveys.
Powerful, connected, and compact, the Trimble Slate Controller combines the convenience and ease-ofuse of a smartphone with the durability for which Trimble is known. Its slim, ergonomic design is easy to grasp and its screen provides superior sunlight readability enabling all-day use by hard-working survey professionals.
Trimble Access field software provides specialized and customized workflows to make surveying tasks quicker and easier while enabling teams to communicate vital information between field and office in real-time.
Survey companies can also implement their unique workflows by taking advantage of the customization capabilities available in the Trimble Access Software Development Kit (SDK).
Need to get data back to the office immediately? Benefit from real-time data sharing via Trimble Access Services, now available with any valid Trimble Access maintenance agreement.
Back in the office, users can seamlessly process data with Trimble Business Center office software.
The Trimble R4 GNSS system –ready and reliable for your everyday surveying needs.
Performance specifications | ||
Measurements | Advanced Trimble Maxwell 6 Custom Survey GNSS chip with 220 channels | |
Trimble R-Track technology | ||
High precision multiple correlator for GNSS pseudorange measurements | ||
Unfiltered, unsmoothed pseudorange measurements data for low noise, low multipath error, low time domain correlation and high dynamic response | ||
Very low noise GNSS carrier phase measurements with <1 mm precision in a 1 Hz Bandwidth | ||
Signal-to-Noise ratios reported in dB-Hz | ||
Proven Trimble low elevation tracking technology | ||
Satellite signals tracked simultaneously | GPS: L1C/A, L1C, L2C, L2E | |
GLONASS1: L1C/A, L1P, L2C/A, L2P, L3 | ||
SBAS: L1C/A | ||
Galileo1: E1, E5A, E5B | ||
BeiDou1 (COMPASS): B1, B2 | ||
SBAS: QZSS, WAAS, EGNOS, GAGAN | ||
Positioning rates: 1 Hz, 2 Hz, 5 Hz, and 10 Hz | ||
positioning performance | ||
Code differential GNSS positioning | Horizontal | 0.25 m + 1 ppm RMS |
Vertical | 0.50 m + 1 ppm RMS | |
SBAS differential positioning accuracy3 | typically <5 m 3DRMS | |
Static GNSS Surveying | ||
High-precision static | Horizontal | 3 mm + 0.4 ppm RMS |
Vertical | 3.5 mm + 0.4 ppm RMS | |
Static and FastStatic | Horizontal | 3 mm + 0.4 ppm RMS |
Vertical | 5 mm + 0.4 ppm RMS | |
PostProcessed Kinematic (PPK) GNSS surveying | Horizontal | 8 mm + 0.4 ppm RMS |
Vertical | 15 mm + 0.4 ppm RMS | |
Real Time Kinematic Surveying4 | ||
Single Baseline <30 km | Horizontal | 8 mm + 0.4 ppm RMS |
Vertical | 15 mm + 0.4 ppm RMS | |
Network RTK | Horizontal | 8 mm + 0.4 ppm RMS |
Vertical | 15 mm + 0.4 ppm RMS | |
Initialization time | typically <8 seconds | |
Initialization reliability | typically >99 9% | |
Communications and Data Storage | Serial: 3-wire serial (7-pin Lemo) on Port 1; full RS-232 serial on Port 2 (Dsub 9 pin) | |
Radio modem: fully Integrated, fully sealed internal 450 MHz receiver/transmitter option | –– Transmit power: 0.5 W | |
–– Range9: 3–5 km typical / 10 km optimal | ||
Cellular: fully integrated, sealed internal GSM/GPRS option | ||
Bluetooth: fully integrated, sealed 2.4 GHz communications port (Bluetooth) | ||
External communication devices for corrections supported on Serial and Bluetooth ports | ||
Data storage: 11 MB internal memory, 188.6 hours of raw observables | ||
1.4 MB/day), based on recording every 15 seconds from an average of 14 satellites |
Company Information
Over the past few years, new forms of personal computers have challenged the status quo of the portable PC. Is a 2-in-1 the same as a laptop? Is a detachable a tablet? Is the tablet the new laptop? Throw in desktop-grade chips and mobile-focused operating systems and you’ve got a recipe for a major shift in what we think of when we think of PCs.
Now, add Google’s newest Pixel to the mix. At a hardware event in New York City today the company announced the Pixel Slate, a Chrome OS tablet with a funky detachable keyboard. It was designed not to be a laptop in a tablet form factor, or a tablet that's really a large phone, but to be a 'completely new experience,' Trond Wuellner, a director of product management at Google, said on stage at the event.
Google says it built customized touch features for the Pixel Slate, which is the first tablet from Google to run Chrome OS. The Slate switches between tablet mode and “laptop” mode depending on how you’re using it. Not surprisingly, Google’s Assistant plays a role in the UI, too.
This new tablet shows that Google is focusing its efforts entirely on Chrome OS as it takes aim at devices like Apple’s iPad Pro and Microsoft’s Surface line. Previously, Google made the Chrome OS-based Pixelbook laptop and the Pixel C, a high-end and somewhat experimental Android tablet. Two years later it discontinued the Pixel C, but kept the Chrome OS Pixelbook around.
The Pixel Slate is larger than the Pixel C, with a 12.3-inch display compared to Pixel C’s 10-inch display. The Slate has an LCD display with a resolution of 3000 by 2000. Google claims it has the highest pixel density of any device in this category; while I haven’t used the Slate for any extended period of time yet, it does have a bright, lovely-looking display at first glance, and the type of LCD Google has used (a low-temperature poly-silicon) has the advantage of offering a high picture resolution.
The Slate is made of anodized aluminum, and its display is coated in Gorilla Glass. It’s 7 millimeters thin and weighs 1.6 pounds, which means it’s just a hair thicker and a few ounces heavier than the 12.9-inch iPad Pro. The edges of the Slate’s profile are curved slightly, for a comfortable feel; its weight is evenly distributed from the center. The company says it focused a lot on making this holdable. Google wants you to really hold this tablet, preferably for long periods of time, preferably while using Google software.
Like the new Pixel 3 phone, the Pixel Slate has a wide-angle front-facing camera, designed to fit everyone in the room in the frame when you’re making a video call. This front camera even has its own name: the Duo Cam, named after one of Google’s video chat apps. The tablet’s dual front-facing speakers have been custom-tuned to give good sound, and its power button on the top left-hand side of the frame doubles as a tiny fingerprint sensor. It charges via USB-C, and Google estimates that it could last up to 12 hours on a single charge. It doesn’t have LTE support.
Pixel Perfect
Google made an interesting move with Slate’s internals: It’s shipping in four different configurations, and the tablet varies widely in terms of price. These range from an Intel 8th generation Core m3 processor, optimized for lightweight or fanless designs; to a Core i5 or i7 processor, which should have better graphics processing; to a lower-end Intel Celeron chip. It starts at $599 for a model with the Intel Celeron chip, 4 gigabytes of RAM and 32GB of SSD storage; and goes all the way up to $1,599 for 16GB of RAM, a 256 SSD, and Intel’s 8th generation Core i7 chip.
That $599 price doesn't include the accessory keyboard for the Pixel Slate, a full-pitch, backlit keyboard with an extra-large trackpad. This will cost you an extra $199. Like the accessory keyboard for iPad Pro and Microsoft’s Surface Pro, it doubles as a folio cover for the Slate, and it connects via a magnet connector, which Google has dubbed its Quick Snap connector. And it draws power from the tablet’s internal battery, the same way the others do.
Google’s earlier Pixel C also had a detachable keyboard, but it wasn’t backlit and was using a different charging mechanism. That tablet used magnetic resonance to charge; the Pixel Slate keyboard uses an electrical connection.
One way in which the Pixel Slate keyboard stands out from pack: Its keys are round, a nod to the circular app icons on other Pixel devices. It’s a funky design, but it will be interesting to see what the round keys mean for typing accuracy.
Where things get even more interesting on the Pixel Slate is with its UI. The interface changes when you connect the tablet to the accessory keyboard, switching it to a familiar Chrome OS desktop. When the keyboard is attached, the Slate goes into “app screen” mode, with the page filled with apps and the Google Assistant making app suggestions near the top of the screen.
Google says it also redesigned the Chrome browser to be more accessible on a tablet, with bigger touch targets at the top of the browser. Browser tabs can also be manipulated by dragging them around, a kind of desktop window approach to navigation, but designed for a large touchscreen tablet. The Pixel Slate also has a split-screen mode, one of the advantages of having such a large display.
While analysts have been optimistic about the detachable category relative to the broader PC market, tablets in general (including slate tablets) have shown some weakness in sales lately. And Apple is still the clear leader in this area, with its iPad Pro. Let's see if Google's Pixel Slate can get people excited about slates again.
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