Deepace KC908 Manual page 85

There are 2 ports on the machine with different performance and the
right port is normally meant for receiving. The pic below shows the pre-
selectors of the left/right port.
Connect the antenna to the desired port.
(3) Press and hold POWER button for half a second, KC908 beeps and
boots. Next, press MODE button to switch the machine into Receiver Mode.
(4) Check whether the port being used is the desired one. (Right port in
this case). If not, select PORT on the soft menu on the screen and set it to
right port. If the PORT option is not present, press MODE button repeatedly
until mode main menu appears, then press More to navigate to the second
page. The selected port would shine with a lamp, there will be notification on
the upper part of the screen as well.