The Sharp SPC900 clock radio uses a transmitter to pick up radio signals from an atomic clock. The unit comes in two parts. You mount the transmitter within 330 feet of the base unit, and the base unit acts as a normal clock radio. You only need to set the time and date information on the clock if it is out of range of a transmitter, or the transmitter can't acquire a signal.
Instructions
Setting the Transmitter
1. Remove the battery door from the back of the transmitter and press the "RESET" button. Install two AA batteries if necessary.
2. Press the "CHANNEL" button to set the SPC900 to channel 1 or channel 2. If the clock's wireless signal indicator shows no signal, try a different channel.
3. Replace the battery door on the transmitter.
Setting the Clock
4. Press the "RESET" button on the back of the clock.
5. Set the time zone by pressing and releasing the "TIME" button on the clock. Press the "UP" button to cycle through the four available United States' time zones.
6. Hold down the "TIME" button until the year setting begins to flash. Press "UP" or "DOWN" to change the year, then press "TIME" to change to the month setting. Repeat the process for the date, hour, minute and second settings. The clock also allows you to set a language for the day, and a time difference for non-US time zones.
7. Press the "TIME" button once you have set the time difference to save the new setting.
Setting the Alarm
8. Press the "TIME" button on the clock to enter the Alarm1 or Alarm2 mode.
9. Hold down the "ALM ON/OFF" button until the hour setting begins to flash.
10. Press the "UP" or "DOWN" button to adjust the hour. Once you have the hour set, press "ALM ON/OFF" to cycle to the minute setting. Adjust the minute the same way.
11. Press "ALM ON/OFF" to save and exit the settings.
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