Look Solutions Radio Remote, Руководство по эксплуатации

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4. System Range
The radio remote control is designed for a long range of 100 meters if conditions
are ideal. The manual transmitter even passes through walls or reinforced concrete
constructions. The maximum range is achieved only in case of visual contact with
the receiver and with no radio-frequency interference.
Possible causes for reduced range:
• Building/Construction of any kind or vegetation affect the range.
• The distance of the transmitter to the body as well as the distance of the receiver
to other conducting areas or objects (the soil included) affects strongly the
radiation characteristic and thus influences the range.
• The antenna of the receiver should be placed upright and be vertical from the
control unit. Winding the antenna reduces the range.
• An antenna extension lead always causes an insertion loss and consequently
reduces the received power.
• Radio noise in metropolitan areas can be relatively high, through which the
signal-to-noise becomes reduced and thus the range is limited. If another unit
using the same frequency is in operation near by, the radio receiver will not
work or it will not receive the correct code.
• When the receiver is operated near poorly-shielded personal computers (and
with most personal computers this is the case) or similar units which produce
radio interference, significant range reductions can also occur or even result in
the total disturbance of the receiver.
• No adjustments should be carried out to the transmitter or the receiver.