Johnson Alarm Clock Radios
Below you can find all models Johnson Alarm Clock Radios for which we have manuals available. Also view the frequenty asked questions at the bottom of the page for useful tips about your product. Is your model not on the list? Please contact us.
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Frequently Asked Questions
Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.
What do AM and PM stand for? Verified
AM stands for Ante Meridiem and indicates that the time is before midday. PM stands for Post Meridiem and indicates that the time is past midday.
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What is GMT? Verified
GMT stands for Greenwich Mean Time (sometimes called UTC, standing for Coordinated Universal Time). It is the time for the longitude 0, that passes through Greenwich near London.
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What is the difference between FM and AM? Verified
FM and AM are both forms of modulation used to transmit a signal. FM stands for Frequency Modulation and AM stands for Amplitude Modulation. AM is the oldest form of modulation. The biggest difference is that the FM signal is much stronger than the AM signal.
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