Tag: Tallysman

Tallysman Introduces VeraPhase 6000 High-Precision GNSS Antenna
Tallysman’s VeraPhase 6000 high-precision GNSS antenna.

Tallysman, a manufacturer of high-performance GNSS antennas, announces the commercial availability of the VeraPhase 6000 antenna series, a family of antennas that provides the lowest axial ratios (horizon to horizon, through all azimuths) across all GNSS frequencies (70 percent), a tight PCV (± 1mm through all frequencies, azimuths, and elevations), and a consistent PCO through all frequencies.

The performance of the VeraPhase rivals that of choke ring antennas, but is much lighter, smaller and more economical, Tallysman said. The antenna family is designed for use in survey, precision RTK and reference antenna applications.

The VeraPhase 6000 also provides an available PCB within the base of the antenna for integration of a custom system board such as a dual-band or RTK GNSS receivers or other applications.

The VP6000 family provides high receive RHCP gain over the full GNSS spectrum:
- low GNSS band (1164 MHz to 1300 MHz)
- L-band correction services (1525 MHz to 1559 MHz)
- high GNSS band (1559 MHz to 1610 MHz).
Each model features a robust, high IP3, pre-filtered LNA to minimize desensing from high-level out-of-band signals, including 700 MHz LTE, and that yet still provides a noise figure of less than 2.5 dB. Non-pre-filtered versions are also available with a noise figure of less than 1.5 dB.

The VP6000 antenna family is available in three formats:
- A survey-grade all-band antenna that provides 35-dB LNA gain and is available with a robust rubber bumper for field use.
- An all-band base station antenna is available with 35-dB LNA gain or with an internal 15-dB pre-filtered pre-amp for OEM applications.
- An all-band reference antenna that features a 50-dB gain LNA, a conical radome to shed snow ice and birds, and is available with a robust monument mount for sub-millimeter precision.
Each antenna has a well defined phase centre offset relative to the antenna reference plane.

The base housing of the VP6000 is IP67-compliant and weighs less than 700 grams. The antenna is 167 millimeters wide at the top, 110 millimeters wide at the base and 110 millimeters in height. Each model has a 5/8-inch x 11 TPI thread for mounting and is available with either a TNC or an N-type connector.

A white paper is available on Tallysman’s website.

Tallysman’s booth at INTERGEO is in Hall E8, Booth 038. Follow GPS World on Twitter for the latest news from INTERGEO.
September 9, 2015
Tallysman Introduces Wideband Embedded GNSS Antennas
Photo: Tallysman

Tallysman, a manufacturer of economical high-performance GNSS antennas, has announced a new series of L1 band Accutenna wideband antennas for OEM applications. The antennas are offered in three formats for reception of GPS; GPS + GLONASS; or Galileo + GPS + GLONASS + BeiDou.

Each antenna type features Tallysman’s Accutenna technology, which provides high rejection of multi-path signals, with low axial ratios, and tight Phase Center Variations (PCV). Each is available with a brickwall pre-filter option to protect against saturation by high level sub-harmonic and L-Band signals.

Here are what each antenna in the new line covers:
- The TW2106 is designed to receive GPS L1. TW2108 is the brick-wall pre-filtered version.
- The TW2406 is designed to receive GPS + GLONASS. TW2408 is the brick-wall pre-filter version.
- The TW2706 is designed to receive all of Galileo, BeiDou, GPS + GLONASS. TW2708 is the brick-wall pre-filter version.
The antenna PCBs are each 56 mm in diameter with four plated holes for secure mounting. They are available with a variety of connectors and custom cable lengths. The antennas can be custom tuned to ensure optimal performance within customers’ enclosures. All of them are REACH and ROHS compliant.

INTERGEO Announcement

At INTERGEO in Stuttgart, Tallysman will be announcing the availability of patented new GNSS antenna technology that it said is proving to:
- Produce the lowest axial ratios from horizon to horizon through all azimuths and across all GNSS frequencies
- Produce sub-millimetre Phase Centre Variation (PCV) through all elevations, all azimuths, and across all GNSS frequencies
- Be lighter weight, smaller size, and more economical than other reference and geodetic antennas
- Have the unique feature of having room within the antenna base to house customers’ circuitry.
Tallysman’s booth at INTERGEO will be in Hall E8, Booth 038. Follow GPS World on Twitter for the latest news from INTERGEO.
September 1, 2015
Tallysman Launches Higher Gain Dual-Frequency Antenna

Tallysman, a manufacturer of high-performance GNSS antennas, has launched a higher gain dual-frequency embedded antenna: the TW3870E. The TW3870E antenna has a typical gain of 35 dB which is required by some GNSS receivers, such as Trimble’s BD9xx family of receivers.

The antenna is capable of receiving GPS L1/L2 and GLONASS G1/G2 signals. It employs Tallysman’s Accutenna technology, which can provide low axial ratios, high multi-path signal rejection, low noise, tight PCV and a phase linear response.

The TW3870E is 60 mm in diameter and has four drilled plated holes for secure mounting within customers’ products. The antenna can be custom tuned to ensure optimal performance. Custom cable lengths and connectors are also available.

The antenna is REACH and ROHS compliant.

Visit Tallysman’s booth at INTERGEO 2015, Hall E8, Booth 038 to learn more about the TW3870E and other Tallysman antennas.

August 19, 2015
Tallysman GNSS Antennas Optimized for Multi-Constellation Systems

Tallysman’s compact GNSS TW1721 dual-feed embedded antenna with Accutenna technology.

Tallysman, a provider of high-performance, high-quality RF and GNSS components, has announced that its range of antennas featuring proprietary Accutenna technology is optimized for today’s multi-constellation satellite systems, including Europe’s Galileo, China’s next-generation BeiDou, GPS, GLONASS and India’s IRNSS.

Tallysman’s compact GNSS antenna range with Accutenna technology is future-proof: GNSS is changing, and an increasing number of receivers are capable of accessing multiple constellations — GPS, GLONASS, Galileo, BeiDou — but to provide the high precision these new generation of satellites enable also requires new antenna technology.

Tallysman’s proprietary Accutenna dual-feed patch technology used in the company’s wide range of GNSS antennas provides circular response over the entire antenna bandwidth, yielding superior multi-path signal rejection-low axial ratios, tight phase center variation (PCV), and a linear phase response. Single-feed patch antennas, by contrast, only provide a circular response at a single frequency and exhibit poor multipath signal rejection when receiving signals from two or more constellations. A pre-filtering option is available that gives additional protection from near out-of-band signals if required.

“Today’s wideband GNSS signals require a pure right-hand-circular response over a much wider bandwidth,” said Gyles Panther, president of Tallysman. “An inadequate phase response results in poor cross polarization suppression, which simply cannot be overcome in the GNSS receiver chip, regardless of its capabilities. Moreover, multipath interference can be expected, even in normal reception situations. Accutenna technology is a cost-effective way to ameliorate this and is particularly beneficial in situations where precision matters.”

In March, the European Space Agency launched two additional satellites (Galileo 7 and 8). Also in March, the United States launched GPS IIF-9, India launched IRNSS-1D, and China successfully launched its new generation BeiDou-3 M1. The expanding number of satellites will benefit many applications, from next-generation in-car navigation systems to coastguard search and rescue and precision agriculture, Tallysman said.

April 20, 2015
Tallysman GPS/GNSS Antennas Available in Australia, New Zealand

TW4421 wideband dual-feed GPS/GLONASS antenna.

Two dual-feed GPS/GLONASS antennas from Tallysman’s GNSS antenna range are now available in Australia and New Zealand through M2M Connectivity. Tallysman is a Canada-based developer of high-performance GNSS antennas focused on the requirements for precision and multi-constellation GNSS receivers.

Featuring a dual-feed wide-band patch element, Tallysman’s TW2410 and TW4421 antennas cover the GPS L1, GLONASS G1 and SBAS (WAAS, EGNOS and MSAS) frequency band (1574 to 1606 MHz). The dual-feed patch provides excellent circular polarized signal reception, multipath rejection and out-of-band signal rejection, according to Tallysman.

Offering tight phase center variation (PCV), the antennas are suitable for high-accuracy applications and for use in precise point positioning (PPP) systems that require only a single frequency such as single-frequency RTK solutions, GNSS compasses and machine control.

Suitable for precision industrial, agricultural and military applications, the dual-feed GPS/GLONASS antennas feature Tallysman’s Accutenna technology that provides superior or multipath signal rejection and precision. The TW2410 and TW4421 antennas are housed in IP67 industrial-grade weather-proof, magnet mount enclosures and come with a wide range of connector options and cable lengths.

Tallysman is a manufacturer of high-performance, high-quality products for a wide range of GNSS applications.

April 7, 2015
Tallysman Application Enables Companies to Build Fleet Networks

Tallysman Wireless has released a hosted data service for its TruFleet AVL (Automatic Vehicle Location) system, which runs on MOTOTRBO digital two-way radio networks. The new service enables Tallysman’s channel partners to build and brand their own carrier network of individual radio systems and to generate an ongoing revenue stream using any MOTOTRBO radio configuration, from conventional repeaters though to wide area trunking systems.

TruFleet is a web browser interface for Tallysman’s fleet management AVL application that enables clear fleet overview and management. It delivers excellent web-based reporting capabilities, is very reliable, and has a rich, intuitive interface that is simple to master and to operate.

The new TruFleet hosted data service enables channel partners to offer a cost-effective AVL solution for fleet sizes with as few as 15 subscribers.

“The TruFleet solution generates compressed batched messages transmitted at a low reporting rate, similar to first generation Tallysman Sprite devices, but a patent-pending algorithm provides much greater data compression, conserving data bandwidth,” said John Seymour, director of data systems at Tallysman. “This enables us to to provide precise positioning at rates that are competitive with cellular systems.”

March 11, 2015
Tallysman TW5340 Smart Antenna Designed for Urban Canyons

A single-feed smart antenna (left) compared to the multipath rejection results of the new TW5340 smart antenna with Accutenna technology. Photo: Tallysman

Tallysman’s new TW5340 smart antenna is designed to pair Tallysman‘s Accutenna technology antenna with STMicroelectronics’ Teseo II receiver. The combination makes the smart antenna accurate for use in all environments, including urban canyons, according to the company.

The TW5340 is a multi-constellation GNSS Smart Antenna that provides simultaneous GPS/GLONASS/SBAS reception. It is designed for use in professional-grade applications such as precision timing, network synchronization, low current applications, and tracking/positioning applications.

To illustrate the advantages of this technology coupling, simultaneous recordings of vehicle position were conducted using two smart antennas — one with and one without Tallysman’s Accutenna technology — in an area of downtown Ottawa, Canada, notorious for high levels of multipath signals. Results show how the high multipath signal rejection capabilities of Tallysman’s Accutenna technology greatly improves accuracy, the company said.

The Tallysman TW5340 smart antenna.

The TW5340 supports STMicroelectronics Autonomous A-GPS, which accelerates GPS positioning by predicting satellite ephemeris data based on previous observations. This results in extremely fast time-to-first-fix. The TW5340 can be configured to output up to three NMEA 0183 message lists with navigation update rates up to 10 Hz. RS232, CMOS, and USB interfaces are available with input voltage options of 3,3V, 5.0V, and 12V. A standby-mode feature provides for very low current consumption (<100uA) and is particularly useful in battery-operated applications.

A standard one pulse-per-second 1PPS synchronized to UTC time is available as a single ended output or as a differential output at RS422 levels.

Tallysman’s Windows-based Configurator enables simple configuration of parameters such a baud rates, output message rates, constellation, tracking parameters, 1 PPS configuration and standby-mode parameters.

The TW5340 is housed in an IP67 housing and is REACH and ROHS compliant. A non-magnetic version is also available as Part Number TW5341.

November 6, 2014
Tallysman Wireless Discusses GNSS Antennas, New Product at InterGeo

Allen Crawford of Tallysman Wireless Inc. details the company’s GNSS antennas at InterGeo 2014, including a new product Tallysman Wireless plans to launch in the first quarter of 2015.

See more InterGeo videos at GPS World’s YouTube Channel.

October 17, 2014
Tallysman Offers Low Current Multi-Constellation Compact GPS Antennas

Tallysman TW4327 and TW4329 antennas.

Tallysman Wireless, Inc., is offering a family of very low power, compact, high-performance GNSS antennas for precision, commercial, and military applications.

Based in Ottawa, Canada, Tallysman Wireless, is a designer and manufacturer of high-performance GNSS, Iridium, and Globalstar antennas and associated components.

The TW4327 and TW4329 are low-power GPS L1 + GLONASS G1 antennas that feature current consumption of 1.75 mA typically and parametrically invariant performance over a supply range from 2.5V to 12V.

The TW4327 offers a 21-dB gain minimum, and the TW4329 includes a narrow pre-filter to prevent front end saturation by near out-of-band interfering signals.

Both antennas are more tolerant to detuning effects caused by the operational environment, thanks to a 40% thicker patch element that provides wider bandwidth than conventional antennas. These antennas are also very compact (38mm x 38mm x 14.4mm), making them ideal for use in a wide range of locations.

The TW4027 and TW4029 are equivalent antennas for reception of GPS L1 signals.

“These products are ideal for any battery operated applications where low power is a pre-requisite,” said Gyles
Panther CEO of Tallysman Wireless, “and the wider patch element bandwidth will minimize detuning in non-ideal
environments, such as in covert applications.”

Tallysman Wireless has recently added an authorized distributor of its products for Russia (Aurora Mobile Technologies), and another distributor for Asia (Advanced Information Technology, Inc.), for the countries of Vietnam, Hong Kong, Singapore, China, Indonesia, and India.

April 25, 2014
Tallysman Introduces Dual-Frequency Antenna Series
TW3802 Shown with flat radome. Conical radome also available.

Tallysman Wireless Inc. has added the dual-frequency TW3800 series to its high-quality precision line of antenna products.

The TW3800 series antennas feature a circular stacked patch antenna for improved axial ratio, yet are small and light, and have the extended bandwidth required for L1/L2 GPS & G1/G2 GLONASS, the company said. The operating voltage range is from +2.5 to 16 VDC. The antennas have a temperature compensated LNAs and operate from -40 to +85^oC to provide reliable performance in most any environment. The TW3800 is packaged in a through hole mount making it suitable for mobile applications.

The TW380x is suited for many applications, including:
- Anti-jamming GPS
- Mission-critical GPS timing
- Military and security
- Network timing and synchronization
- Precise tracking
- High signal availability
The TW3805 is the OEM version of the TW3802, and can be custom tuned to provide optimal performance inside virtually any housing, Tallysman said.

“The circular patch design of the TW380X antennas permits precision custom tuning with excellent axial ratios.” said Gyles Panther, president of Tallysman Wireless. “This flexibility, combined with the very wide operating voltage enables this antenna to work with virtually any receiver on the market.”

The Tallysman TW3805HR antenna.
July 19, 2013
Tallysman Wireless Wideband Dual-Feed GPS L1/GLONASS/ Galileo Antennas

Photo: Tallysman

Tallysman Wireless announces the TW4421 and TW1421 antennas, which offer a step forward in performance for small GNSS antennas, the company said.

The TW4421 is a low-cost dual-feed magnetic mount antenna covering the GPS L1, GLONASS L1, Galileo and SBAS (WAAS, EGNOS & MSAS) frequency band (1574 to 1606 MHz). The TW4421 features a 25-millimeter dual-feed wideband patch element that provides excellent multipath rejection with a more linear carrier phase response, by virtue of a low axial ratio across the full frequency bandwidth, Tallysman said. It is especially suitable for high accuracy applications, and also offers high out-of-band signal rejection.

The TW4421 is housed in a compact IP67 magnetic mount enclosure and is available with a wide range of connector options.

The TW1421 embedded antenna is lightweight (30 gm) and features a very small footprint (35 mm diameter x 7.25 mm). The TW1421 is suited for use in applications where performance and small size are of paramount importance, such as extreme-sport-wearable tracking devices and UAVs.

“Most small low-cost GPS/GLONASS/Galileo antennas are narrow-band devices with an elliptically polarized response at the GPS and GLONASS frequencies,” said Gyles Panther CEO of Tallysman Wireless. “The TW4421/1421 antennas feature a 40-percent wider bandwidth patch, with a dual-feed structure, which provides unparalleled multipath rejection previously only available in much larger, more expensive antennas.”

June 18, 2013
Tallysman Wireless Introduces Wideband, Low Cost GPS-L1/GLONASS Antenna

Tallysman Wireless, Inc., has announced the latest addition of the TW4320/4322 to its line of antenna products. The TW4320/TW4322 antennas are small wide-band, high-performance antennas housed in a compact IP67 magnetic mount enclosure, with a three-meter cable and a wide range of connectors.

“Most small low-cost GPS and GLONASS antenna have narrow-band patch elements tuned mid-way, but which are 2-dB down in both signal bands,” said Gyles Panther, CEO of Tallysman Wireless. “The TW4320/22 antennas feature a patch element with a 40% wider bandwidth and a very low noise amplifier which together allows the full benefits of multi-constellational GNSS to be realized.”

The TW4320/TW4322 antenna covers the GPS L1, GLONASS L1, and SBAS (WAAS, EGNOS, and MSAS) frequency bands (1575 to 1606 MHz). It features a small patch element with 40 percent wider bandwidth than previously available in this format. It provides both GPS-L1 and GLONASS signals in the 1-dB received power bandwidth.

The TW4320/TW4322 has a two stage low-noise amplifier with a mid-section SAW (Surface Acoustic Wave). A tight pre-filter is available in the TW4322 to protect against saturation by high-level sub-harmonics and L-band signals.

Features:
•    40% wider bandwidth in the same format
•   Axial ratio: 6 dB max
•   Low noise LNA: 1 dB
•   High rejection mid-section SAW filter
•   Available pre-filter (TW4322)
•   High gain: 28 dB typ.
•   Wide voltage input range: 2.5 to 10 VDC
•   IP67 weather-proof housing
Models:
•   TW4320 – GPS/GLONASS antenna, three-meter cable, SMA Male 32-4320-xx-yyyy
•   TW4322 – GPS/GLONASS antenna, with pre-filter, three-meter cable, SMA Male 32-4322-xx-yyyy

August 16, 2012