Sharper Image Hadrons SN004 Instructions Manual page 8

Setting the Atomic Time and Date
interference. A strong signal is normally found close to the window.
In some areas where the signal is poor, you may need to position
and rotate the clock until the best signal strength is obtained.
Figure 6a:
Blinking anten-
na icon (clock
attempting to
synchronize).
Once you have found the optimal position, leave the clock still so
that it can receive a clear signal. It normally takes 3 to 10 minutes
Figure 6b: Synchronization and radio signal strength indication.
Figure 7: How to position the clock for the best signal reception.