Receiver IT3G7R20
USER'S MANUAL
12
8. FREQUENCY SCANNING
The receiver has some systems for detecting anomalies in the event that other equipment or systems
interfere with the communication between the transmitter and the receiver. These systems include
frequency scanning, which will be used to scan the entire band and find the frequency channels that are
or have been occupied by some other device emitting within the same band.
By finding the channels that are or have b
een occupied, by deduction, it’s possible to know which ones
are free and, therefore, it’s convenient to configure one of them to avoid these anomalies.
While the receiver is in standby, it performs a scan of the free and occupied channels of the entire band.
If the scanned channel is occupied, it will check whether the signal is its own
or from another device. If it’s
recognised as its own, the working channel will be updated with the new configuration and work will
continue with this new working channel.
If there is no signal recognised as its own on the scanned channel, it will simply proceed to register
whether the channel is occupied or free.
The occupied channel status will prevail over the free channel status, which means that as soon as a
channel is found to be occupied it will
be recorded as such even if it’s found in a later scan to be free.
This recording will be deleted as soon as the receiver is no longer supplied with power.
