This may be dumb..... (?? why do CB ops use LSB most of the time ??)

[guitar_199]

I've pondered it a few times but never really put much into it.

I know that most hams, above 10 Mhz, use USB and I've never really thought about it.

But something hit me just yesterday.... and it makes me wonder if it doesn't have something to do with it!!!!????!!!!!
Before 1977 (in the 23 channel days) it seems channel 16 was adopted as the SSB channel.

Ch 15: 27.135 MHz
Ch 16: 27.155 MHz
Ch 17: 27.165 MHz

So,from Ch 16 to Ch 17 there is only a 10 KHz gap.

But downward... to Ch 15 there is an RC channel... but if you look at it a little myopically... it is a 20 KHz gap.

So if you crank up the ALC in sideband.... you have (effectively) 20 KHz to the next channel... leaving a little more room before you run into the next channel.

When 40 channel radios came along...... everybody just whirled that old channel selector up to 37, 38 and so on.... leaving it in LSB...

Like I said..... the may not be the reason.... it may even be goofy...... but it makes me wonder!!!!!!!!

Any comments or thoughts ????

Bob

 

[FlyBoy50]

I've wondered that myself sometimes. Maybe old habits die hard !