This is the instruction manual of Citizen DQD-70B alarm clock
This document is an operation guide for the Casio DQD-70B digital clock. It details how to use the device's automatic and manual time calibration features by receiving signals from transmitters in Mainflingen, Germany, and Rugby, England. The guide explains that reception depends on location and atmospheric conditions.
It receives signals from Mainflingen, Germany and Rugby, England.
A signal receive operation takes from two to fourteen minutes under good signal conditions.
The alarm stops, but it will sound again in about five minutes if the snooze feature is on.