Feed on

In this title of this article, we see the media playing on the public’s fear of cougars.  Too bad.

Collars are of various types and configurations.

Almost all collars involve a VHF component (transmitter), which can be located by anyone using a receiver capable of receiving that transmitter’s specific frequency (frequency assignment varies depending on agency and permit).  Knowing the frequency is important.  However, if unknown, a frequency can be determined by scanning provided circumstances are nearly ideal, and provided the person knows what they are doing.

Some collars are also GPS units which collect points on a pre-determined schedule…the GPS points are stored-on-board and sometimes also relayed via satellite system (e.g., North Star) – in that case, the data are transmitted from the unit to a satellite, then back to a data receiving network, then emailed to the owner(s) of the collar.  That occurs on a schedule too…the more frequently data are transferred, the higher the cost.

There are also sat collars – ARGOS, and the like.  One knows approximately where in the world the critter is, but frequently the location provided is not all that precise, though sometimes it is very good, quite specific.

The power units (batteries) eventually expire or fail…when they do, the unit is useless, except as a marker.  But any GPS points collected are still available, provided the collar (critter) is eventually recovered.


Mountain Lion prowling in Michigan!

By Craig McMorris, TV5 Anchor/Reporter


There’s a cougar prowling Michigan’s Ontonagon County. The Michigan Department of Natural Resources says the animal was captured on a trail camera on private property earlier this month. It was walking directly toward the front of the camera and clearly showed an ear tag and a radio collar.

Read more….

Comments are closed.