Ok, here is a silly question from a new-b.. I have an Icom IC-7000 Transceiver capable of the HF bands. I have installed a 10m dipole in my attic, I have an LDG 7000 tuner matched to the IC-7000 and I still can not receive any signals on the 28.3 to 28.5 MHz (USB). Is the problem most likely the antenna in the attic or am I missing something basic? Thanks for the help..