Wire signal
Wire signal, specifically 92 codes adopted by Western Union in 1859[citation needed], were brevity codes used between landline telegraphers in the era before wireless communication. After the advent of radio, a subset of these codes made their way into common use among early ham radio operators. Most are no longer in use and some codes have changed meaning significantly over time.
While the practical realities of Morse code operation may have made various brevity and operating signals necessary, they have migrated into common use among hams in all modes; of these codes 73 remains overwhelmingly the most common.
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| Wire Code | Meaning |
|---|---|
| 33 | Hugs |
| 73 | Best Wishes |
| 88 | Love and kisses. |
| 99 | Go to Hell. |