Telonics trapsite transmitters can be used to monitor and report status of various traps including box traps, culvert traps, clover traps, leg-hold traps, and corral traps. These transmitters provide one signal or message when the trap has not been triggered, and the signal or message changes when the trap is triggered. This allows the user to know the status of a trap without actually visiting and possibly disturbing the trap site. Since there is less disturbance of the trap site, trapping success can be improved. The ability to know remotely when a trap is triggered also facilitates animals being removed from traps in a timely manner.
Telonics currently produces two general types of trapsite transmitters:
- VHF configurations are used for monitoring from the ground or aircraft. They change pulse rate when triggered (e.g. from 50 to 100 beats per minute).
- Satellite-linked transmitters operate through the Globalstar satellite system to provide automated remote monitoring. When a trap is triggered it immediately transmits through Globalstar, and a “triggered” email message is sent.
Trapsite transmitters are equipped with a lanyard containing a magnet on one end. The lanyard is attached to a portion of the trap that moves when triggered, such that triggering the trap separates the magnet from the trapsite transmitter and activation of the "triggered" mode.
VHF Trapsite Transmitters
Telonics VHF trapsite transmitters' standard operation includes two pulse rates: a "standby" pulse rate indicates that the unit is operational, but not triggered, and a second pulse rate indicates that the unit has been triggered. VHF transmitters can alternatively be provided with a variable pulse rate that is related to the time since the triggering event.
VHF units are monitored using a conventional VHF receiver and antenna, normally from the ground but potentially via aircraft.
||Dimensions L x W x H (in, cm)
||Unit Weight (g)
Std Pow (months)
High Pow (months)
||4.53 x 2.56 x 2.17
11.5 x 6.5 x 5.51
||Designed primarily for stationary traps including culvert and clover traps. Whip antenna. Operates using 3 AA alkaline cells, which allows standard shipping.
||1.47 x 2.0 x 3.27
3.74 x 5.1 x 8.31
||Designed primarily for stationary traps including culvert and clover traps. Whip antenna.
||1.47 x 2.0 x 3.27
3.74 x 5.1 x 8.31
||Designed primarily for stationary traps including culvert and clover traps. Female TNC connector provides for connection of a remote antenna.
||4.7 x 1.45 dia
11.94 x 3.68 dia
||Designed primarily for monitoring leg hold traps. Whip antenna.
Note: Lifetime estimates are based on continuous operation at 1200ms pulse period (50 beats per minute) at 0°C. Operational temperature range is 70°C to -40°C for the TBT-503-3, TBT-504-3, and TBT-550-3 (lithium batteries), and 55°C to -20°C for the TBTR-100-1 (alkaline batteries).
Globalstar TBT-4560-4 Trapsite Transmitter
The TBT-4560-4 Globalstar transmitter operates through the Globalstar satellite system which provides coverage in almost all terrestrial areas of the world (there are gaps in coverage in central Africa and extreme polar regions, and in many oceanic areas). An activation fee of approximately $30 per transmitter and monthly fees of approximately $5 per transmitter apply for use of the Globalstar system.
The TBT-4560-4 is a lithium primary battery system. If a Globalstar trapsite transmitter with a replaceable battery is important for your application, Telonics would be pleased to work with you to accommodate such a request. When a trap is triggered, a Globalstar transmission is immediately triggered and that results in an email to the address assigned to that particular TBT-4560-4. That way you can receive immediate notification when a trap is triggered as long as you are able to receive email. If the status of the trap has changed since the prior day (e.g. it has been initially activated, or a daily “check-in” transmission is missed), that information is also sent to the registered email address. The unit also includes a VHF transmitter which can operate according to user-specified timing and pulse rates, and which changes pulse rates when triggered as with a VHF trapsite transmitter.
||Dimensions L x W x H (in, cm)
||Unit Weight (g)
||3.6 x 2.0 x 1.5
9.3 x 5.1 x 3.7
Note: The lifetime estimate is based on a daily Globalstar transmission, the VHF transmitter operating at 2000ms (30 beats per minute) for 8 hours per day, and extended operation at 0°C. Overall operational temperature range is 70°C to -40°C (lithium batteries).
The TA-9 is a quarter wave omnidirectional antenna with a ground plane designed for fixed site applications. Approximate length is 33 in. 0 dBd gain. Specify female TNC connector for use with TBT-504-3. Mast and cable not included with antenna.
The TA-9 comes tuned to one of the frequency bands below:
Other bands are available. Please contact our laboratory for more information.
RW-3-12 TNC Male to TNC Male for use with TBT-504-3 and TA-9 antenna
The RW-3-12 is a 12 foot RG-58 coax cable with TNC male to TNC Male connectors.
Custom cables can be ordered from the laboratory.
HD 009245-001 Magnet Pull Lanyard for use with TBT and TBTR series units
Length 20.5 in (52.07 cm)
One HD 009245-001 is included with each trapsite transmitter.
TAS-1 Telonics Armor Shell for TBT-550-1
Click a thumbnail for a larger view.
The information below is provided for individuals who are still deploying these older systems.
Some of the system information or limitations, information on frequency allocation or usage,
and/or comments made on "state of the art" may be time sensitive or even outdated. Please
contact Telonics if you have any questions about the information provided in this section.
Telonics previously produced an trapsite transmitter which operated through the Argos satellite system, the TTA-4610-3.
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
IATA Dangerous Goods Regulations (current year)
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: VHF Transmitting Subsystems - Show
The VHF Transmitting Subsystem includes the following main components: internal digital and radio frequency electronics comprising the transmitter, power supply (battery), exterior packaging, transmitting antenna and attachment. A refurbished Subsystem is warranted as if the Subsystem was purchased new, unless otherwise stated.
Telonics warranties only the following with respect to the Subsystem:
1.1 The internal electronics (excluding batteries) are warranted to be free from defects in materials and workmanship and to perform to the operational specifications over the specified operating temperature range as published by Telonics for the rated operational life of the Subsystem (as recorded on the final test data sheet accompanying the unit), up to a maximum of three (3) years from the date of initial shipment of the Subsystem by Telonics.
1.2 The exterior packaging integrity of hermetically sealed subsystems are warranted for the full operational life of the Subsystem, up to a maximum of three (3) years from the date of initial shipment of the Subsystem by Telonics.
1.3 The exterior packaging integrity of polymerically sealed subsystems are warranted for the operational life of the Subsystem, up to a maximum of one (1) year from the date of initial shipment of the Subsystem by Telonics.
Although each Subsystem is supplied with a power supply in the form of a battery, Telonics does not manufacture batteries (electrochemical cells), and therefore cannot warranty the battery lifespan, mechanical integrity or other battery performance issues. However, Telonics conducts extensive testing of all types of electro-chemical subsystems to determine suitability to the application. Once an electrochemical system is chosen for a configuration, testing procedures are employed at Telonics to evaluate every individual battery that is installed in each transmitting subsystem. Even using these advanced testing procedures it is not possible to determine a specific battery's lifespan or mechanical integrity.
Telonics conducts tests to assure that each unit is transmitting at the power level selected by the user. Actual range performance is a system characteristic dependent upon numerous conditions including receiver sensitivity and noise figure, receiving antenna tuning and pattern, transmitter antenna integrity, line of sight conditions in the field, and vegetation and habitat conditions and other factors specific to individual study sites. Therefore it is not possible to warranty a minimum range that will be achieved for units deployed in the field.
"Packaging integrity" as applicable to 1.2 and 1.3 above, is limited to normal wear as encountered on the animal.
It is the purchaser's obligation to make certain that it orders the correct size and type of Subsystem for the particular type and size of animal that the Subsystem will be applied to, and no warranty is expressed or implied for any failure to meet operational specifications due in whole or in part to use of an incorrect size or type of Subsystem.
No warranty is expressed or implied with regard to abnormal events or damage due to human actions such as gunshot damage, vehicle encounters, etc. Further, no warranty is expressed or implied with regard to damage resulting from misuse, accidents, unauthorized service, extreme conditions, or other causes not specifically enumerated herein.
The entire risk, as to the results and performance of the Subsystem, 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. Telonics' and its suppliers' maximum aggregate liability shall not exceed the amount paid by the customer for the Subsystem.
Exercising the Warranty
If a defect occurs, return the Subsystem to Telonics within the applicable time frame noted above at the following address: TELONICS, 932 E. IMPALA AVENUE, MESA AZ USA 85204-6699. 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. Customer shall arrange for and pay all shipping, insurance and related charges incurred in the shipment of Subsystems to and from Telonics under this warranty.
Upon the timely return to our facility within the applicable time frame noted above, if the exterior packaging integrity and/or internal electronics (excluding batteries) are defective, the Subsystem will be replaced or repaired, at Telonics' sole discretion, at no cost to the customer, other than shipping charges. 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 above warranty extends only to the original purchaser and does not cover any Subsystem which is resold or otherwise transferred from the original purchaser to another party. The warranty will be extended to customers who purchase the Subsystem directly from a Telonics-authorized distributor.
Warranty: Globalstar Systems - Show
Telonics warrants its Globalstar 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.
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.