Hi, the way that I have seen this split work is that the DX station will xmit in the 7.025-7.100 portion of the band on phone and you will listen to him there. He will listen to you at 7.225-7.300. It is a huge split, but it is pretty common. So, you may listen anywhere you want on the 40m band. In this region, we cannot xmit phone between 7.000 and 7.150, but the DX station is allowed to do so. He does this split for just that reason, so the pileup will not be on his xmit frequency.
Kenneth (AB5CC)