8
Explanation for internal processes (2) (automatic link)
This is controlled automatically by the built-in micro-computer in the same way as the automatic channel
search.
All modules are started from [0ch] in the case of the automatic link.
The channel search is executed by the module from the pre-determined starting channel.
For example, if the channel search was executed from [0ch], the procedure would be as follows:
(1) The transmitter set for the vacant channel commences transmission
(2) The receiver is set at channel 0 (433.200MHz)
(3) The carrier level is detected and compared with the reference level.
* The reference level is different for the transmitter and receiver.
(4) If it is below the standard level, the frequency is increased by one channel (25kHz.)
* Increased by two channels for the transmitter, but only one channel for the receiver.
(5) The ID data is received and compared with the ID register
(6) Increased by one channel (25kHz) if the ID number matches
(7) Switched across to the communication mode if the ID number matches
RF level
Automatic link
Lo
Hi
RF link
TX starts
Receive ID data
ID check
No
Yes
Set RX mode
Set 0 channel
Sense carrier level
Increment 1ch (25kHz)
Transmitter
Receiver
