On 80m i am using two different antennas. The main one is a Dipol at 120ft height. The little boxes beside the balun are housing relais to switch the resonance point of the antenna from the CW DX window (3500-3550) to the SSB DX corner at 3790 kHz remotely.
The alternative 80m antenna is the main 160m antenna, switchable to 80m as well and described in detail in the next folder.