3
SDR-1900
UHF Dual-Channel 2-Way Sync Receiver
Channel synchronizing between receiver and transmitter
Align infrared areas of the receiver and transmitter within 10~30cm.
Changing the receiver’s channel
1
Press the synchronizing button of the
transmitter.
2
The transmitter's LED will grow to denote
synchronizing signal transmitted.
3
The channel/frequency of the receiver will
change and then the synchronization is
complete.
Changing the transmitter’s channel
1
Press the synchronizing button of the
receiver
2
The transmitter's LED will grow to denote
synchronizing signal received.
3
The channel/frequency of the transmitter
will change and then the synchronization is
complete.
If it doesn’t work check that you have the IR sensor panels aligned, that they are facing each
other, devices are within 10~30cm of each other, and try again.
Squelch (SQ) setting
When interference is encountered try reducing the sensitivity of the receiver by turning the SQ
control [channel 1:
○
22
,
channel 2:
○
18
] clockwise, thus less susceptible to interference. If this still
does not solve the problem it means this frequency is not suitable. Adjust the squelch back to
where it was and use the scan function to locate a clear channel.
10~30cm
