[Elecraft] K3 Main and Sub BFO's

[Roger Crofts]

Following the recent discissions of optimum CW pitch, I wondered if the brain might be better able to discriminate the wanted signal from close-in QRM by inverting the sideband to one ear. Only the wanted signal would have the same pitch in both ears.
I set-up the main and sub receivers to a separation of double the pitch frequency and then linked the VFOs. So far so good. Then I inverted the sideband on the sub receiver. But alas, the sideband on the main receiver inverted at the same time. Even using "b Set" I could not get the BFOs on the main and sub to operate independently. They do operate independently in SSB, but not apparently in CW. Am I missing something?

73 de Roger, VK4YB