[Elecraft] Can't get 160 sub working on K3

[Gary Smith]

Works fine on other bands. I've tried the 
"rf calibration" on the sub as well as 
main and it's working fine. I must have 
bumped something somehow as I can't hear 
anything other than internal hiss on 160 
but on 80, 40 & so on the Rx antenna is 
apparently working fine.

Anyone well versed in what I might do, 
please contact me off list.

Thanks,

Gary
KA1J