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SYNTHESIZED SETS
USER MANUAL
33
8. SCAN
The equipment has several systems for the detection of abnormalities in case other equipments or
systems may interfere within the communication between transmitter and receiver.
Among these systems there is the scanning or frequencies, which will allow the tracking of the whole
band in order to find which channels are or have been occupied by any other system that transmits in
the same band.
The equipment is able to find the channels that are or have been occupied. This means that the user
can deduce which channels are free. In order to avoid abnormalities, it may be convenient to select
one of these free channels as working channel.
8.1. AUTOMATIC SCAN
The equipment makes an exploration of the free and occupied channels of the band while it is in
stand by state. In case the selected channel might be occupied, the equipment will prove if it is the
own one or if it belongs to another equipment. In case the equipment accepts the selected channel,
the new configuration will be updated and the equipment will work in this new channel.
If the scanned channel is not recognised by the equipment, the equipment will simply register it as
occupied or free.
The occupied state of the channel will prevail over the free one, that is, whenever a channel is
occupied it will be registered as occupied even though in later scans it will be find free. This register
will be erased when the receiver has no power supply.
8.2. MANUAL SCAN
The manual scanning is used in order to have information about those free channels that are not
being occupied by any other equipment. These free channels can be used without interferences from
other equipments.
In order to activate this command the receiver must be in stand by. The push-button on the base
board must be pressed during more than two seconds. Leds will light sequentially and cyclically with
intervals of half a second approximately between each state, indicating that the scanning process is
being realised the following board indicates the process:
S1
S2
S3
S4
S5
S6
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