In emergency situations these methods I am about to share with you could mean life or death, especially if you're mobile phone has either run out of battery power or has no signal. maybe even, if you're well prepared, you're walkie talkie isn't in range of any others.
So what do you do if these options aren't available to you. well you have several options. they are:
- mirror
- flash light
- whistle
- Ground to air
- Semaphore
- Morse code
mirror and flash light cover the same method but these would be used at different parts of the day and night. these can be used in different ways such as either flashing light at the person or object, or even creature, your trying to attract the attention of in a non specified order or on/off method. you can also use Morse code to attract the attention of someone. Below, I have placed a picture of Morse code signals.
Another form of attracting attention is via signalling is the use of a whistle. you can either use a random series of whistle blows, Morse code or the international distress signal. the international distress signal consists of 6 sharp blows of the whistle which are distributed through out a minute, wait a another minute, and then repeat the exercise. the return response of the rescuer is three sharp blows of a whistle. This method can be used with a whistles, torches or anything else that makes noise or attracts attention. The next form of signalling is semaphore which can be done using flags as pictured below or using lights of glow sticks.
Lastly, the final signalling method is ground to air which is often seen in movies which involve a person washed up on a desert island who tries to message passing aircraft. below is the different symbols which, as the same as the last types of signalling, is internationally recognised.
There are other forms of signally, for example smoke signals, but the ones I have mentioned above tend to be the most effective and safe methods to use.
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