Mar 2009

Microchip frequency: does it matter?

All of the implantable microchips currently used or being introduced for use in the pet and companion animal market operate properly and perform well over a wide range of reader provided operating frequencies. All of the readers currently in use to read these microchips provide operating frequencies between 125 kHz and 134.2 kHz which is a frequency range of only ±3.5%. The following two examples illustrate the wide compatibility of the implantable pet microchips to reader-provided operating frequencies.

a) The predecessor to the HomeAgain (Destron) microchip used from 1987 to the early 1990s, operated with the reader-provided operating frequency of 400 kHz. That microchip, although no longer being implanted, still exists in some pets, and is successfully read by today’s MultiReaders operating at frequencies between 125 and 134.2 kHz.
b) The AVID encrypted microchip has been widely touted as being one of the “125 kHz microchips, which is currently the accepted U.S. standard.” According to the information at the Federal Communications Commission (FCC) which must grant approval to operate any RFID microchip reader, the low performance Mini Tracker readers provided by AVID to read this microchip do provide an operating frequency of 125 kHz. However, about a third of AVID’s reader types authorized by the FCC are the higher performance Power Tracker readers. All of these provide operating frequencies of 128 kHz. See attached FCC Grant information.

How well a particular microchip’s ID number is read, or whether or not it is read at all, by a particular reader, is dependent solely on the reader design, and not on the operating frequency provided by the reader (within the frequency range of interest of 125 kHz to 134.2 kHz). There are distinguishing factors, other than operating frequency, between the different types of microchips, which affect reading performance. Some of these factors, which would otherwise limit reading performance, can be compensated for in the reader design; others cannot.

by Wayne Culberth, Vantro Systems, Inc.

New ATEX System: top-of-the-line performance in hazardous environments

Trovan, Ltd. is pleased to present its new ATEX certified line of transponders and readers. These devices have been especially certified for use in hazardous Zone 1, gas group IIA & IIB environments, potentially explosive environments, of the type found in mines, petrochemical plants and flour mills.
Compared to competing ATEX systems, the TROVAN EX line offers exceptional resistance to EMI and the ability to perform while transponders are mounted on, or even flush-mounted in, metals. TROVAN EX system features unsurpassed read range and read speed, so that LPG cylinders identified with TROVAN EX transponders can be read while moving on conveyors. The TROVAN EX system encompasses three transponder models, a HandsFree prox card, as well as two different models that may be mounted on assets, as well as fixed mounted readers and a portable data terminal, for roving data collection. The ID-103G LPG Cylinder Transponder has a special tamper proof feature that precludes its removal from the cylinder, and attachment to another asset. Using two-part epoxy, the operator can attach each transponder to the cylinder within two minutes. The transponders will read through dirt, grease, paint. For more on the TROVAN EX system, please click here.

New Butterfly Pusher delivery device provides ergonomic implantation solution

Trovan’s new butterfly pusher delivery system is designed for ergonomic, easy application of transponders in animals.
For vets and breeders requiring only a small number of transponders, the butterfly pusher is a cost-effective solution, since the transponder is packaged in a single sterile blister pack together with a ready-to-use, all-in-one implanter. Separate purchase of a dedicated multi-use implanter is not required. The butterfly pusher is being offered in combination with Trovan’s innovative lancet, which allows realtime visual verification of transponder insertion. Products available with the butterfly pusher include: ID-100K TROVAN UNIQUE Animal Transponder with Butterfly Pusher, ID-160K FDX-B Compatible Animal Transponder with Butterfly Pusher, ID-162K FDX-B Animal Transponder with Butterfly Pusher