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USE OF EARPHONES
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Plug the earphone (accessory) into the earphone
socket. The loudspeaker will switch off automatically.
Earphones are sensitive to high temperatures. At tem-
peratures of more than +45 degree Celsius, it's crystal
may be damaged resulting in a reduction in range, or
total equipment failure. Do not expose your earphones
to direct sunlight.
SELF DIAGNOSTIC CHECK
The m2 can perform a self diagnostic without the need for a second
transceiver. After switching on to transmitting mode, all the sym-
bols should appear on the display panel for 10 seconds, then dis-
appear. Provided all the symbols are shown, the transceiver is in
good working order. When the battery symbol shows one third bat-
tery capacity, the batteries must be replaced. Both control lights
flashing indicates that the device is transmitting well.
SEARCH STRIP WIDTH:
Up to now the search strip width is defined as 40 % of the maximum
range. This means for the ORTOVOX avalanche transceivers: maximum
range of about 80 m x 40 % = 32 m search strip width. The avalanche
transceivers working only with the digital technique do not allow large ran-
ges as the ORTOVOX avalanche transceivers offer.
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The maximum transmitting and receiving range can be checked
as follows:
Please put the transmitting m2 horizontally on the snow surface
• Go away from the transmitter for about 100 m
• Turn your m2 on receive mode and approach the transmitting transceiver.
• The antennae of both avalanche transceivers are coaxial (the antennae have
the same axis)
• You receive the first audio signal at a distance between 90 and 80 m, at a
distance of 40 m the first visual signal appears
• Then exchange your transmitting m2 with the receiving avalanche transceiver
and repeat the procedure.
For ski tours, snowboarding and off-pist skiing we recommend the "daily
function control":
• All members put their m2 on receive mode at the same time
• One member (preferably the group leader) puts his ORTOVOX avalanche
transceiver on transmit mode
• If all the members receive acoustic and visual signals, the receiver and the
transmitter are working correctly.
• After having checked the transmitter you have to test the function of the
receiver
• The members put their avalanche transceivers on transmit mode and pass
the receiver one by one and at a distance of about 15 m.
This is the reason why efforts are made at the moment (8/2000) to change the
definition of the search strip width. The proposal is: search strip width = maximum range
(this would mean a search strip width of 80 m for the ORTOVOX avalanche transceivers).
ORTOVOX takes this way for dangerous. For you own safety we recommend to keep
a maximum search strip width of 60 m for our avalanche transceivers or, to be sure, to
keep the proven and reliable 40 % rule!
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