C. Crane PR-D4VW ユーザーズマニュアル

3) You may get a periodic test tone from the NOAA that will 

cause an unexpected alarm on your Sonido Radio. This 
tone is only a test and will happen periodically, usually 
every Wednesday at noon, or whenever the agency decides to
test their emergency alert system. Simply pressing any button 
on the receiver will shut the alert tone off. After an alert has 
been issued, the WEATHER ALERT siren will stay on for one 
minute and the light will flash for one hour or until you turn it 
off by pressing any button.

Tuning steps in some countries are different from others. If you
purchased this radio in the United States (which uses 10kHz-tun-
ing steps) and intend to use it in Europe (which has 9kHz-tuning
steps) you will need to adjust the radio so that it can match the
locations tuning steps.

1) When the radio is switched off, press and hold the 

Step/Band button for three seconds. This will show
the current FM tuning step. Continue pressing the 
Step/Band button for five more seconds. A beep will 
sound and the display will show FM and flash the current
tuning steps.

4) When activated, the WEATHER ALERT consumes power 

even when the radio is turned off.

5) Be aware that if you are not using AC power the WEATHER 

ALERT will completely drain your batteries. If your batteries 
are dead and AC power is off, the 

2) In any of the active WEATHER ALERT modes, the weather 

receiver stays on and listens for an emergency tone issued 
from NOAA in case of emergency.

1) If you have the headphones plugged in and a weather alert is 

issued, the audio to the headphones will be cut-off and the 
siren will sound through the radio's speaker.