Copper Talk » Ask The Tech » General CB, Ham & Mur's Radio Related Questions/Topics » Why LSB and not USB on the regular CB channels? « Previous Next »

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Chris142
Intermediate Member
Username: Chris142

Post Number: 129
Registered: 7-2002
Posted on Thursday, October 04, 2012 - 10:20 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Why does everybody (that I know of) use LSB? Is LSB a better choice than USB?I know that they use USB off the CB band.

Is there a legitimate reason or just something that happened and nobody knows why.
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Tech833
Moderator
Username: Tech833

Post Number: 2214
Registered: 8-2002
Posted on Friday, October 05, 2012 - 11:28 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Tradition.

In amateur (ham) radio, LSB is traditionally used for the 40m band and lower while USB is traditionally used for 20m and higher. Nobody seems to know for sure why, but some believe it is because of surplus military gear compatibility. Almost ALL military gear used USB, and there was a LOT of it used on the amateur bands way back when.
Your radio 'Mythbuster' since 1998

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