Difference between usb and lsb

LSB is Lower Side Band and refers to the lower side band on a given channel. USB is Upper Side Band and refers to the upper side band on a given channel. The basic concept is that a channel is at a specific frequency and there are side bands that can be utilized for lower bandwidth audio transmission.

1. When should I use USB and LSB?
2. What is USB and LSB?
3. Should I use upper or lower sideband?
4. Is 10m USB or LSB?

When should I use USB and LSB?

When single-sideband is used in amateur radio voice communications, it is common practice that for frequencies below 10 MHz, lower sideband (LSB) is used and for frequencies of 10 MHz and above, upper sideband (USB) is used.

What is USB and LSB?

The signal components above the carrier frequency constitute the upper sideband (USB), and those below the carrier frequency constitute the lower sideband (LSB). All forms of modulation produce sidebands.

Should I use upper or lower sideband?

The convention is to use the Upper Sideband on these frequencies for voice communications. Note: Just remember that HIGHER frequencies above 10 MHz (< 30m, shorter wavelengths) generally use the UPPER sideband, and LOWER frequencies below 10 MHz (> 30m, longer wavelengths) generally use the LOWER sideband.

Is 10m USB or LSB?

Why? Lower sideband (LSB)--The common single-sideband operating mode on the 40, 80 and 160-meter amateur bands. Upper sideband (USB)--The common single-sideband operating mode on the 20, 17, 15, 12 and 10-meter HF amateur bands, and all the VHF and UHF bands.