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# Measure Callsign Weight

This page allows you to measure the "weight" (time taken to send) of one or more callsigns in Morse.  For more information on this, see the explanation below.

Type in one or more callsigns separated by spaces and click the Measure button when you are ready:

Cookies: Clicking the Measure button stores a cookie on your computer containing the callsigns you typed in.
If you do not wish to allow this cookie, do not click the button!
The cookie is used so that next time you visit this page, the callsigns you last typed in appear in the box.

# Explanation

## Callsign Weight

The "callsign weight" is a measure of the time needed to send a callsign using conventional spacing.

If 1 unit is the time taken to send a dot, then each dash is 3 units in length, there is 1 unit gap between each dash or dot in a character and 3 units gap between characters.  For example, take G5RV:

Character Length in Units Total Units
G dash=3, gap=1, dash=3, gap=1, dot=1 9
gap before the next character=3 3
5 dot=1, gap=1, dot=1, gap=1, dot=1, gap=1, dot=1, gap=1, dot=1 9
gap before the next character=3 3
R dot=1, gap=1, dash=3, gap=1, dot=1 7
gap before the next character=3 3
V dot=1, gap=1, dot=1, gap=1, dot=1, gap=1, dash=3 9
gap before the next character=3 (see note below) 3
Total 9 + 3 + 9 + 3 + 7 + 3 + 9 + 3 46

Note: Why include the extra 3 units character gap at the end of the callsign?  This is a standard adopted by websites providing a callsign weight measuring feature so that each website will produce the same result for a given callsign.

## Times

The sending times have been calculated based on the standard of the length of a word being 43 units long and the gap between words being 7 units long.  The time is the number of units multiplied by 1.2 and divided by the words per minute (wpm), i.e. (units * 1.2 / wpm).

The times don't include the extra 3 units character gap.

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