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Now in its 24th year, the annual GPS World Receiver Survey provides the longest running, most comprehensive database of GPS and GNSS equipment available in one place. With information provided by 45 manufacturers on 438 receivers, the survey assembles data on the most important equipment features. Manufacturers are listed alphabetically. Footnotes and abbreviations (below) supply additional information to guide you through the survey. We have made every effort to present an accurate listing of receiver information, but GPS World cannot be held responsible for the accuracy of information supplied by the companies or the performance of any equipment listed. In some cases, data had to be abbreviated or truncated to fit the space available. Contact the manufacturers directly with questions about specific units. To be listed in the 2017 Receiver Survey, e-mail [email protected]. NOTES ABBREVIATIONS 1 User environment and applications: 2 Where three values appear, they apps: applications refer to autonomous (code), real-time ARINC: Aeronautical Radio, Inc. A = aviation differential (code), and post-processed standard C = recreational differential; where four values appear, async: asynchronous D = defense they refer to autonomous (code), bps: bits per second G = survey/GIS real-time differential (code), real- CP: carrier phase H = handheld time kinematic, and post-processed CEP: circular error probable L = land differential. diff: differential M = marine ext.: external / int. = internal Met = meteorology 3 Cold start: ephemeris, almanac, and m, min: minutes N = navigation initial position and time not known. na or NA: not applicable O = other nr: no response opt.: optional P = other position reporting 4 For a warm start, the receiver has a par.: parallel R = real-time DGPS ref. recent almanac, current time, and initial prog.: programmable S = space position, but no current ephemeris T = timing ppm: parts per million V = vehicle/vessel tracking 5 RMS: root mean square Reacquisition time is based on the loss s: seconds 1 = end-user product of signal for at least one minute. SBAS: Satellite-Based 2 = board/chipset/module for Augmentation System OEM apps 6 E = provision for an external antenna typ.: typical R = antenna is removable VRS: Virtual reference station WP: waterproof WR: water resistant JANUARY 2016 | WWW.GPSWORLD.COM GPS WORLD S1 RECEIVER SURVEY 2016 A WORD FROM OUR SPONSOR Ask for an on-site demo of the product or if the Finding the manufacturer has equipment available for you to Right Receiver perform your own evaluation. BY Jason Hamilton n the 2014 GNSS Receiver Survey, expertise? Do you need a similar to your own. A website should they work and if they apply to your with. Are the people approachable? I wrote a column on “Beyond highly configurable device or a also give more information about application. Is the company long-established Receiver Specifications.” That device that is plug-and-play? receiver features like positioning and reliable? Is there a threat of the material still holds true, and is • Do you want a device at a chip techniques, multipath mitigation TRY BEFORE YOU COMMIT supplier competing with you in your available on our website; see the level, receiver board level or technology, interference mitigation A specification is as good as the application? Is this a company you Ilink at the end of this column. Here’s enclosed product level? techniques and correction sources to paper it’s written on until it is proven. are excited to partner with in your a recap of those previously discussed • What are the constraints of help make your purchase decision. Once you have narrowed down your project or product? criteria: your application? What is If your search involves a GNSS/ choices, make sure the claims are Use your own experience through • Absolute vs relative accuracy the relative importance of INS system, the site should clearly backed up in real life. Evaluate the product evaluation as a guide and • Heading and orientation performance, size, weight, outline the differences in achievable product for yourself. Ask for an also ask for references and even ask JASON HAMILTION, vice president, determination cost and power consumption? performance between the supplier’s on-site demo of the product or if around in your network. What kind marketing at NovAtel. • Interference robustness IMU options. the manufacturer has equipment of experience have others had in • Antenna selection DO YOUR RESEARCH Something of increasing impor- available for you to perform your dealing with the company? • Ease of Integration Not all devices are suitable for tance is the receiver’s ability to adapt own evaluation. all applications. Investigate what to the environment in real time. Get the equipment running in WEIGH YOUR OPTIONS. options exist in the market — this Change in multipath conditions, your environment as closely as you MAKE A CHOICE NEW TOPICS FOR 2016 survey is a good starting point. All satellite availability, correction avail- can to your real-world operational When all your homework is done, it’s A GNSS receiver can be a big receivers in the survey can calculate ability and interference sources all conditions. Evaluate it. Is the product time to commit. Deciding between investment, not just in the cost of position to a few meters of accuracy. impact the performance of the re- easy to integrate? Is it easy to operate the plethora of options out there the device itself, but in the effort you If your application demands more ceiver. Suppliers are increasingly in the field? Can it be configured can be daunting, especially if the will expend to integrate the product than that, you will have more including features that seamlessly how you need it? Is the product performance is similar. Choose into your system. Make an informed evaluation to do. manage changes in positioning documentation clear, complete and the partner who you feel can not decision by following a structured The supplier website is a good mode, correction streams and sat- accurate? Does it run reliably and only deliver the performance you process for choosing your receiver. place to start to assess a product’s ellite geometry without requiring the does it deliver the performance you are looking for, but also will fit with Start by assessing your require- features in more detail such as sup- user to intervene with the system. need? These questions are hard to the culture of your company and will ments. ported interfaces and constellations. If you don’t see the performance answer until you get the product in offer the kind of communication • What absolute accuracy, Product sheets found on the site metric you’re interested in, or a your hands. This step is invaluable. channels you need to best help relative position, velocity, time will give performance specifica- specific product feature is unclear This step also gives you the ability execute your business objectives. and orientation do you need to tions. User manuals, if available, to you, call the manufacturer and to test out the company’s customer achieve? will let you assess how configurable inquire. Often this information is support. Call or email them if you • What reliability do you need? a product is and how easy it will be available, just not on the product have any integration problems and At what confidence level? to integrate. sheet or website. This gives you evaluate how well they do at getting Check the spec carefully. Read white papers or application a great chance to test out the you up and running. • What regions are you profiles, such as the customer stories knowledge and responsiveness of operating in and are there any found in NovAtel’s Velocity magazine the supplier’s customer service or RESEARCH THE COMPANY legal or trade requirements posted in the Tech Talk section of sales team. Explain your application, Once you have evaluated the product Go to “Tips for Choosing a GNSS to support specific our website, for insight into how environment and performance and narrowed your selections, take Receiver” at www.novatel.com/ constellations? others have successfully evaluated targets and have the supplier explain the opportunity to evaluate the com- support/knowledge-and-learning/ • What is your level of and integrated products or solutions the benefit of different features, how pany you are about to do business to learn more. S2 GPS WORLD WWW.GPSWORLD.COM | JANUARY 2016 JANUARY 2016 | WWW.GPSWORLD.COM GPS WORLD S3 RECEIVER SURVEY 2016 SPONSORED BY Manufacturer Model Channels/ Signal tracked Maximum number of User environment and Size (W x H x D) Weight Position: autonomous (code) / real Time (nanosec) Position fx update Cold start3 Warm start4 Reacquisition5 No. of ports Port type Baud rate Operating Power source Power Antenna type6 Description or Comments tracking satellites tracked application1 -time differential (code) / real-time rate (sec) temperature consumption mode kinematic / post-processed2 (degrees Celsius) (Watts) Baseband Technologies, Inc. Snapshot Receiver user defne GPS L1 C / A code user defne ACDHLMNOPV12 na na ~5m na 500Hz 2ms 2ms 2ms na na na na na na na Server - based GPS receiver www.basebandtech.com Arduino compatible RF user defne GPS L1 C / A code user defne ACDHLMNOPV12 na <10g ~5m na 500Hz 2ms 2ms 2ms na na na na na na na Server - based GPS receiver Shiield (Eval) Kit 28 Day Extended user defne GPS L1 C / A code, GLONASS & user defne ACDHLMNOPRSTV12 na na Day 1: 3m, Day 7: 7, Day 14: 17m, na na < 6s <2s <2s na na na na na na na Work with 28 Day Extended Epemeris Ephemeris client BEIDOU (TBD) Day 4: 65m (68% SISRE) service Brandywine Communications NFS - 220 par 16 Channel GPS L1 1575.42 MHz, C / A 1.023 MHz 16 T 1.75” (H) x 7.5” (D) x 19” 11lb typical 2.4 m horizontal, 5 m altitude 100ns.

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