Sangean WR-22 (V1) - Manual (Page 16)

5
GB
FM stereo / mono setting
If the FM radio station being listened to has a weak signal some
hiss may be audible by headphone. It is preferable to reduce this
hiss by forcing the radio to play the station in mono rather than
stereo.
. Press the Standby button to switch on your radio.
2. Tune to the required FM radio station as previously described.
3. Press and hold the Menu/Info button to enter the menu setting.
4. Press the Tuning control rotary until ‘FM AUTO or FM MONO’
shown on the display. Press the Tuning control rotary to enter
the setting. If the setting is Auto rotate the Tuning control rotary
to switch to Mono mode to reduce the hiss.
5. To return to Auto (stereo) mode, rotate the Tuning control rotary
to alter the setting, so that the radio will switch back to Auto mode.