TGM-4685-3 GPS/Argos system Debris Entanglement System

TGM-4685-3

The TGM-4685-3 GPS Store on Board Unit with an Argos uplink is specifically designed for studies which require the collection storage of time and position (latitude and longitude). The Argos data link provides a means for data transmission of the latitude and longitude using the Argos data collection system (DCLS). The TGM-4685 unit requires the customer to provide the floatation device. This unit was designed to be attached to debris being towed by entangled whales.

Key Features

  • Contains a GPS receiver to obtain high accuracy GPS positions when adequate surfacing time occurs. When surfacing characteristics prevent a standard GPS position from being obtained, the Quick Fix Pseudoranging (QFP) alternative provides GPS positions using a post processing technique on surface times as short as 5 seconds.
  • Powerful data collection and data transfer using the Argos system allow the units to acquire, queue, and transmit locations, temperatures and dive information.
  • All products can be programmed by Telonics Product Programmer (TPP) which uses a GUI interface. TPP makes it possible for users to program their own systems and simulate performance of the system prior to deployment.
    • On-board sensors can be activated or deactivated in the field. Data collection regimes and schedules can be altered as required. Sensor data can be enhanced or deleted from Argos uplink transmissions.
    • Transmission schedules can be modified.
    • Argos ID codes can be changed.
    • Argos uplink transmission power levels can be modified to extend operational life or increase the probability of signal reception at the satellite.
    • Argos uplink frequencies can be changed to frequencies in low noise channels to increase the chances of a successful uplink.
  • Data Decoding - Data are processed using the Telonics Data Converter (TDC), which provides complete data decoding of Argos DS files and supports complete memory downloading. TDC provides a comma separated value (csv) output file with time stamps for all data collected. TDC can also be run in the "batch mode" for hands off operation.
  • TDC allows you to plot GPS fixes and Argos locations with Google Earth.
  • Real-time clock calendar (RTC) controls all timing functions and is recalibrated with GPS time to assure high accuracy event timing.
  • A micro-power saltwater sensor (SWS) saves additional power and further extends the operational life of the unit.
    [ More information about saltwater switch: Show ]
  • Battery packs can be replaced by the user or units can be refurbished to their original condition at the factory.
  • Shutdown with a magnet allows users to turn each of these configurations "on" or "off". When turned "off", TGM-4685 units consume less than 12 µA. Given these low current levels, users can store their units for extended periods with minimal impact on operational life.

Models

Model Dimensions L x Dia Unit Weight (g) Onboard Memory for Data Logging Low Power (mW) Low Power Operational Life (hours) 1 Low Power Operational Life (hours) 2 Low Power Temp (°C) High Power (mW) High Power Operational Life (hours) 1 High Power Operational Life (hours) 2 High Power Temp (°C)
TGM-4685-3 19.25" x 2.5" 965 (approx.) Yes 400 (Typ) 5712 8184 -40 to +70 500 (Typ) 5232 7632 -40 to +70

1 Operational life is based on collecting 1 GPS fix per hour, 31 byte Argos transmission 24 hours per day with satellite prediction, 0% of time spent under water, 60 seconds Argos repetition rate, standard power output and average temperature of 25° C.

2 Operational life is based on collecting 1 GPS fix per hour, 31 byte Argos transmission 24 hours per day with satellite prediction, 50% of time spent under water, 60 seconds Argos repetition rate, standard power output and average temperature of 25° C.

TGM-4685 Mechanical Drawing

Electronic Specifications

µGPSI-23 GPS/Argos/VHF Specifications

General Specifications

Timing Accuracy Timing is synchronized to GPS time when available. If GPS time is not available, then internal timing accuracy is:
6 min/year at 25° C
30 min/yr -20 to +40° C
47 min/yr -40 to +70° C
Available Sensors Mortality, Activity, Temperature, Low Voltage (as allowed by specific software)
Salt-water-switch and Pressure are hardware and software options on some configurations.
Memory Capacity Capable of storing ~500K fixes in nonvolatile flash memory in association with other sensor data.
Programming Programmable using Telonics TPP software and TSC-7A cable. Programming options are hardware and software dependent, but include GPS, Argos, and VHF schedules; sensor activation and schedules; power output; Argos can also be scheduled to transmit only during satellite overpasses based on the GPS location and the orbital parameters installed prior to deployment.

GPS Receiver Specifications

Performance -163 dBm tracking sensitivity
-147 dBm acquisition sensitivity
Datum WGS-84
Time to First Fix (TTFF) 35 sec typical (with clear view of sky)
Quick Fix Pseudoranging (QFP) 3-5 sec typical (with clear view of sky)

Argos Transmitter Specifications

Operating Frequency ARGOS Frequencies
401.6300MHz to 401.6800MHz in 1 kHz Steps
Brazilian SCD-1, Channels C1 to C9
401.6180MHz to 401.6220MHz in 500Hz Steps
Frequency Stability ± 0.5 ppm maximum from -30° to +70° C
± 2.0 ppm maximum from -40° to -30° C
Initial Frequency Error ± 0.5 ppm maximum at +23°C, ± 2° C
Aging ± 2.0 ppm maximum after 1 year
RF Power Out Standard Power version: 500mW (+27dBm), 400mW (+26dBm) option, into 50 Ω
(User selectable using TPP programming software)

High Power version (H): 800 mW (+29 dBm) ±1dB nominal into 50 Ω
(available in some configurations)
Spurs and Harmonics <-40dBc minimum, -60dBc typical (Coherent Spurious)
<-50dBc minimum, -60dBc typical (Non-coherent spurious)

VHF Transmitter Specifications

Available Frequency Options Option 702 134-139 MH
Option 705 140-154 MH
Option 707 146-160 MH
Option 715 156-172 MH
Option 720 160-177 MH
Option 740 174-192 MH
Option 750 191-210 MH
Option 760 210-237 MH
Note: Frequency can be programmed in 100Hz steps within a given frequency range.
Frequency Stability Better than ±3ppm at room temperature ±5 ppm total tolerance over full temperature range
Operating Temperature -40° to +70° C
Pulse Width Programmable (10 to 250 msec)
Pulse Period Programmable (265 to 5000 msec)
Multiple pulse periods selectable per specific software and TPP
Transmitter Timing Programmable, including daily and seasonal duty cycles.
Power Output Selectable levels via hardware and software.
Effective Isotropic Radiated Power (EIRP) varies, depending on packaging, antenna configuration, and immediate environmental conditions. *California Users: This transmitter meets the California requirement of EIRP<0.009W for all configurations.
Emission Designator 2k00P0N
Harmonic Suppression Better than 30dB (>40 dB typical)
Spurious Emissions <-35 dBc at 10 kHz offset from carrier
Frequency Aging: <2ppm/year
Shock: <1ppm 3000g x 0.3ms x ½ sine x 3 dir
VSWR RF output stable to 10:1 VSWR, all phases
Radiated harmonic levels are degraded with poor load VSWR.
Spurious emission specification maintained for >10:1 VSWR

Related Products

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PS008640-060 GPS Battery Pack

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PS007766-001 VHF Battery Pack

TDC Telonics Data Converter Telonics Data Converter (TDC) is used to convert raw data from Telonics transmitters into data reports and to display locations on Google Earth and Google Maps. You can review TDC reports in Microsoft Excel or other spreadsheet programs.

TPP Telonics Product Programmer Telonics Product Programmer (TPP) is a powerful software tool used to program Telonics transmitters, and Telonics CR-5 and CR-7 collar release mechanisms. TPP gives you the ability to modify aspects of your Telonics GEN4 GPS and VHF transmitters including data collection and transmission intervals. TPP is designed for ease of use, with simple point-and-click navigation through the program.

TSC-4A and TSC-7 Fast/Active Smart Cable The TSC-4A and TSC-7 are multi-use USB interface cable and features a USB A type computer connector and a male BNC (bayonet style) embedded device connector. The BNC connector allows quick and easy attachment of various embedded device adapters (available separately).

TSC-3 Fast/Active Smart Cable The TSC-3 is a multi-use serial interface cable and features a DB9 serial computer connector and a male BNC (bayonet style) embedded device connector. The BNC connector allows quick and easy attachment of various embedded device adapters (available separately).

CN008351-001 Adapter Adapter, female BNC to alligator clips for use with the TSC-7A cable. This adapter is used for systems where programming/download connections are made using the antenna tip or saltwater switch buttons.

TSTR-4 Test Receiver The TSTR-4 provides transmit indication for Argos PTTs (401.650 MHz). Provides both a visual indicator and audio tone with each transmission. Operates on a standard 9 volt battery. Designed specifically for short range (2-3 feet) testing of Argos transmitters.

Related Links to Information on Other Websites

Legacy Products

This information on discontinued products is provided for individuals who are still using these older systems. Product descriptions may be time sensitive or even outdated. Please contact Telonics if you have questions.

Telonics supports these products as possible based on availability of parts, software, or other considerations; but no longer sells them new.

Legacy: TGM-4685 Specifications (Uses the µGPSI-20 System) Show

Lithium Battery Shipping Regulations

Telonics, Inc. ships all systems containing lithium batteries in accordance with United Nation and US Federal regulations for shipping hazardous materials.

49 Code of Federal Regulations
http://www.ecfr.gov/cgi-bin/text-idx?SID=e8334217c2c8d081457a5156872ad037&tpl=/ecfrbrowse/Title49/49cfrv2_02.tpl#0

IATA Dangerous Goods Regulations (current year)

Service Commitment

Since 1970, Telonics has built a reputation based on product quality, product support, service, and customer satisfaction. Telonics strives to produce the highest quality products, and to support those products accordingly.

Because of extreme conditions and the unpredictable nature associated with most telemetry applications, problems occasionally arise. Most problems can be resolved quickly. In all cases, we hope to be able to work in partnership with users to resolve problems to the user's satisfaction and to uphold our demonstrated commitment to excellence. If problems should arise, all products must be returned to our factory for failure analysis.

Warranty: GEN 4 GPS Systems

Telonics warrants its GPS products to be free from defects in material and workmanship for a period of one year from the date acquired. Telonics does not warrant batteries.

Telonics designs and manufactures systems for a variety of applications using several satellite systems (GPS, Argos, Iridium, and Globalstar). At the time of manufacturing, Telonics equipment is tested to verify compatibility with the applicable satellite system(s). Telonics does not warranty equipment against changes in satellite system specifications or satellite operation after the date your equipment was manufactured. Unforeseeable or unplanned system changes would include, but are not limited to, elevated ambient noise levels in the radio frequency bands used for satellite communications, elimination of service in a region of the world, data outages due to technical problems within the satellite system network, or reductions in data transfer capability due to alterations in the constellation as a result of premature space vehicle failures or failure to replace space vehicles in a timely manner.

If a defect occurs, return the equipment to us within the proper time frame at the following address: TELONICS, 932 E. IMPALA AVENUE, MESA AZ USA 85204-6699. The customer shall arrange for and pay all shipping, insurance and related charges incurred in the shipment to and from Telonics under this warranty. Damage to any equipment resulting from misuse, accidents, unauthorized service, extreme conditions, or other causes, is excluded from this warranty. Telonics does not assume responsibility for loss or damage to equipment during shipment. Telonics does not assume responsibility for delays resulting from shipment on commercial or private carriers. We insure all equipment shipped from our facility and suggest that shipments to Telonics also be insured.

Upon the timely return to our facility, if defective, the product will be replaced or repaired at our discretion at no cost to the customer. This remedy is the exclusive remedy. This product is supplied without any further warranties or conditions, expressed or implied, including warranties of merchantability, quality or fitness for particular reason or those arising by laws, statutes or trade usage or course of dealing. The entire risk, as to the results and performance of the product, is assumed by the customer. Neither Telonics, nor its suppliers, shall have any liability to the customer or any other person or entity for any indirect, incidental, special, or consequential damage whatsoever, regardless whether Telonics has been told of the possibility of such damages or that such damages might be foreseeable. Telonics has no responsibility or liability for the claims of any third party. The maximum aggregate to the customer, of Telonics and its suppliers, shall not exceed the amount paid by the customer for the product.