95% of 10m phone transmissions are done via upper sideband, the remaining balance is
fm use for repeaters.
am is not used much at all. most early
hf rigs did not have
am, it wasnt untill the 70's that
am started to be built into the radios. cw is the most common way to transmit on 10m.
This is incorrect. CW came first, then
AM, way before sideband, and then
ssb was discovered. When
ssb got to be the primary mode of phone, the companies started removing the
am capability on some radios.
PR