Sangean DDR-63+ (V1) - Manual (Page 98)

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Optical S/PDIF output socket
A digital output socket providing an S/PDIF signal is provided on the rear of your radio for connection
to an amplifier, mini-disc or other equipment with a digital optical input. This feature is not active
for iPod or AUX in modes.
Aerial removal
The fitted telescopic aerial is suitable for most applications. The telescopic aerial may be removed
to allow connection to an external aerial using a coaxial cable.
First remove the two small screws holding the antenna connector cover in place (use a small cross
-head screw driver). Then using the supplied spanner, remove the telescopic aerial by rotating
in
an anti-clockwise direction when viewed from the rear of the product.
This will expose an F-type connector to which an external aerial may be connected.