RADSON 4 Zones RF Clock Guide D'utilisation page 12

c) Then, press on the (OK) key to enter in the "RF init"
mode, you can now choose the zone which need to be
configured by moving the frame cursor with (◄-) and
(►+) keys on the desired zone number (1 to 4).
d) Once the zone selected, press on the (OK) key and
choose if you want to use it "Yes" or "no",
- If you choose "no" the zone will be not displayed on the
main screen, then choose another one.
- If you choose "Yes" the following screen must be
displayed and the clock will start to send now the radio
configuration signal to the receiver.
e) On the receivers, check the good reception of the
signal, generally showed by a green blinking RF LED.
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