Pressemelding fra BCA (Produsent av Tracker DTS) - legg merke til den siste setningen: Tracker DTS designer clarifies effect of cell phones on transceiver. BOULDER, CO (February 15, 2001) - Cellular telephones typically have little or no effect on the searching capabilities of the Tracker DTS avalanche beacon, according to product designer John Hereford. Cell phones that are turned on and transmitting will not affect the distance or directional information provided by the Tracker, as long as the cell phone is more than approximately eight inches away from the receiving Tracker unit. If the cell phone is within approximately eight inches, the Tracker DTS can experience a decrease in receive range or can display occasional anomalous distance or directional readings. However, since these sporadic readings do not form a consistent pattern, they are unlikely to disrupt a search. Irregular readings such as this can also be caused by other sources of electrical interference, such as power lines, electrical storms, and electrical generating equipment. Phones using GSM technology, common in Europe, create slightly more electrical interference than phones using CDMA and TDMA technology, which are standard in the U.S. Cell phones in close proximity to a transmitting Tracker have an insignificant effect on the transmit signal, Hereford confirmed. Hereford's statement was made in response to a recent report which suggested that cellular phones can affect the searching performance of all digital transceivers. However, the Tracker DTS appears to be less susceptible to electrical interference than other modern transceivers. This is due to such factors as shielding on the Tracker's two receiving antennas, its grounded printed circuit board, and tighter noise rejection algorithms. Hereford recommended that to assure optimal performance, the user should turn off his or her cellular phone and any other electronic equipment while doing an avalanche transceiver search with the Tracker DTS or any other brand of transceiver, both digital and analog.
