there is a rumor that they are somehow using SNR filter to disallow / ban anyone using "too much power". I.e. if they are receiving you at +10 then they dont work you. Not sure where this started but i've not seen any documentation of it. Here is a post from a facebook group: I have been talking to a bunch of ops I know who are really hardcore DX'ers. It going around that TI9A has set a max SNR in their fox mode to work the weaker stations. This means if you're stronger then what they have set you will not be put in the que. guess we need to ask the 'hardcore DX'ers'