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Codes & Signals  
Hobo Codes

Hobo Codes

The alluring mystery of the hobo codes and translations of what the codes actually mean.

How to Read Military Time

How to Read Military Time

Examples will help you to read military time vs. civilian time (both AM and PM hours translated to military time).

American Morse Code

American Morse Code

American Morse Code and how it differs from International Morse Code.

What Are Police Signal Codes?

What Are Police Signal Codes?

Police Signal Codes explained with examples and meanings as used in police radio communication.

What Are Police 10 Codes?

What Are Police 10 Codes?

Police 10 Codes explained with examples and meanings.

How to Use Military Map Symbols

How to Use Military Map Symbols

Military map symbols are essential visual tools used for assessing the battlefield. Learn how the military utilizes map symbols with the examples provided.

How to Use a Police Radio

How to Use a Police Radio

Simple instructions for how to use a police radio with steps for transmitting a radio message and parts of a radio illustrated.

How to Send an SOS Distress Signal

How to Send an SOS Distress Signal

The origins of the SOS distress code with Morse Code examples, sounds, and an image showing an SOS signal using a flashing light at night.

International Morse Code System Letters and Numbers

International Morse Code System Letters and Numbers

A table displaying Morse Code letters A through Z and numbers 0 through 9.

U.S. Navy Nautical Signal Flag Code

U.S. Navy Nautical Signal Flag Code

Signal flags are a uniform set of easily identifiable nautical codes and are used to convey visual messages and signals between two ships or from ship-to-shore. They are based on a internationally recognized set of codes referred to as the International Code of Signals and is published in nine languages.

U.S. Army Officer Rank

U.S. Army Officer Rank

U.S. Army Commissioned Officer Rank, Army Warrant Officer rank structure, and insignia.

Phonetic Alphabet Letters

Phonetic Alphabet Letters

A listing of phonetic alphabet letters with the code, letter and pronunciation.