![]() ![]() There is no fail-safe if the battery runs out in the middle of the night. ![]() If the power goes out, you won’t miss that important meeting in the morning. ![]() Most clock radios require an outlet for power, but some have batteries for backup power. Out of everything in your life, your clock radio should be the least of your worries. Buttons should be responsive, easy to press, and intuitive. Programming your favorite radio stations should also be easy. Make sure setting the alarm is simple enough that you don’t run into problems that leave you racing to work. You won’t get any use out of a feature-heavy unit if it’s too hard to program. When deciding on a clock radio, consider its ease of use. If you sleep like a rock and constantly ignore your alarm, a more persistent clock radio may be right for you. If you have difficulty sleeping, you might need a clock radio with features that help you drift off peacefully. If you work odd shifts or have to get up early in the winter when it’s still dark out, a sunrise simulator may help with morning grogginess. If you’re a very heavy sleeper, sound quality – and volume – may be more important to you than other features. If you’re thinking about buying a new clock radio for your boudoir, first think about your sleep habits. Older ITU documents indeed show both the silence periods for Morse and MF.If you want to save space on your bedside table, opt for a clock radio that doubles as a light. The Annex makes no mention of silence periods, not in the "Availability of frequency", nor in "Protection of freq", nor in the "Watch on the freq", etc Radiotelephony procedures contained in the Annex to this Resolution. In distress or engaged in urgency or safety related communications on 2 182 kHz, use the That there needs to be some recognized guidance for the use of radiotelephony on 2 182 kHz forġ that ships, when in distress or when engaged in urgency or safety-relatedĬommunications on 2 182 kHz, use the radiotelephony procedures contained in the Annex to thisĢ that coast stations, in order to maintain communication with non-GMDSS ships that are These services until such time as they are able to participate in GMDSS, Time as they are able to participate in the GMDSS Ĭ) that some administrations may have a need to maintain shore-based radiotelephonyĭistress and safety services on 2 182 kHz so that vessels not subject to SOLAS, 1974, as amended,Īnd not yet using the techniques and frequencies of GMDSS will be able to obtain assistance from Using radiotelephony procedures for distress and safety communications on 2 182 kHz until such The techniques and frequencies of GMDSS prescribed in Chapter VII and may wish to continue (SOLAS), 1974, as amended, are required to be fitted for the Global Maritime Distress and Safetyī) that some vessels not subject to SOLAS, 1974, as amended, may not be making use of The World Radiocommunication Conference (Geneva, 2007),Ī) that all ships subject to the International Convention for the Safety of Life at Sea Resolution 354 of the World radio conference 2007 addressesĭistress and safety radiotelephony procedures for 2 182 kHz The 2012 Radio Regulations (the official rules) only cover GMDSS and make no mention of the 2182 silence period. I was curious and just checked the ITU documents These silence periods are no longer required as the introduction of GMDSS has produced alternative automatic watchkeeping systems and the 500 kHz band is no longer in use for maritime traffic. Similar sectors were marked in red for what used to be the corresponding silence and listening period on 500 kHz between h+15 and h+18 and from h+45 to h+48. As a visual aide-memoire, a typical clock in a ship's radio room would have these silence periods marked by shading the sectors from h+00 to h+03 and from h+30 to h+33 in green. ![]() This allowed any station with distress, urgent or safety traffic the best chance of being heard at that time, even if they were at some distance from other stations, operating on reduced battery power or perhaps reduced antenna efficiency, as for example from a dismasted vessel. Remember it well from my early Lifeboat days using the big MF set.All stations using 2182 kHz were required to maintain a strictly enforced three-minute silence and listening period twice each hour, starting at h+00, h+30. ![]()
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