Operations
Operation Function
Touch
∨
key once
Frequency reduces 0.1MHz
Touch
∧
key once
Frequency increases 0.1MHz
Touch
∨
key all the time
Frequency reduces quickly(1MHz/step)
Touch
∧
key all the time
Frequency increases quickly(1MHz/step)
Touch
∨
key and
∧
key
once simultaneously
Clear scan
Care and maintenance
Before using the AT1900, please read the following recommendations, it will
help you to enjoy the product for many years.
Do not expose the transmitter to liquid, moisture or humidity to avoid
the product’s internal circuit being affected.
Don’t use abrasive cleaning solvents to clean the transmitter.
Do not expose the transmitter to extremely high or low temperatures as
this will shorten the life of electronic devices, destroy the battery or
distort certain plastic parts.
Don’t dispose of the transmitter in a fire as it will result in an explosion.
Don’t expose the transmitter to contact with sharp objects as this will
Connect to DC5V
USB port
