[TowerTalk] Urgent Receive antenna for 20/15/10

[W0MU Mike Fatchett]

Do to a rig problem here in V31 my K3 currently cannot hear anything on 
the main antenna ports.  It does hear just fine on the Aux input.

It transmits fine via the main antenna.

I can toss up a dipole or V.

My question is should I add legs for 20/15/10 or will the 20m leg work 
ok on 10m being that they are multiples or would I be better of for 
receive adding a 10m leg?

W0MU