
HomeFree Systems Ltd Universal Transmitter User Manual
2
1.
Foreword
The HomeFree at Care Centers system as designed to monitor
special needs and Dementia individuals in the care center
environment. The Universal Transmitter is one of the many unique
elements of this system.
1.1. The UTX-830 is a small frame-head device, to be installed at
internal or external doors of nursing homes and assisted leaving
homes. The device is combined ith a magnet on the door to
detect door open / close status. When the door is open, the
device shall transmit panic messages once every 18-22 seconds
(random interval ithin this range), until closed door is
detected. It ill be possible to turn the UTX830 on and off by
pulling out the battery (for saving battery life and for aviation
safety hile shipped). While UTX-830 is ON, it shall transmit
a status message, once every hour, to indicate that it is still
functioning and to report its battery level.
1.2. The UTX-830 is a stand-alone unit. It can be battery operated or
externally po ered by a dedicated AC adaptor; it has RF
transmitter module, a microcontroller, hich controls the UTX-
830 operation, one PCB, and a door magnet.
1.3. The UTX-830 has one RF channel. It is 318 MHz carrier ith
FSK modulated data.
1.1.
Activating the Universal Transmitter:
The Universal Transmitter is turned off by the manufacturer before
shipment and must be activated before use. To activate, insert the