HEADPHONE USE
While not a control, you may consider using HEADPHONES to obtain the best audio clarity when listening to SW. Since many SW stations broadcast only marginal signals, using HEADPHONES will enable you to distinguish between the signal and the noise usually encountered at night. Be sure that the HEADPHONES terminate in a 1/8 inch plug, which is inserted into the HEADPHONE jack located on the left side of the radio, marked with symbol When the HEADPHONES are plugged in, the speaker is muted.
LOCK SWITCH USE
Using the LOCK Switch prevents unauthorized operation of the radio and will also prevent the station you are listening to from being changed. When the LOCK switch is moved to its up position, the POWER button and TUNING controls are completely disabled. If the radio is on when the LOCK switch is moved to its up position, you will not be able to turn it off. If the radio is off, with the LOCK Switch in its up position, you will not be able to turn it on. This will also prevent it from being turned on by accident, when packed in a attache case. To release the LOCK Switch, simply move the switch down.
Because the radio is capable of receiving FM multiplex stereo, Stereo HEADPHONES Should be used. W h e n l i s t ening to stereo FM, be sure that the FM: STEREO/MONO switch is set to the STEREO position.