Just learned about this one last night. Frequently more than 70 users on at a time so it has good multi-user capacity. I don't see what kind of antenna they're using but trying to find that out. On a funny note - I punched in 10M to then tune down to 11 .... and the Default 10M frequency was 28.425 ..... lawdy .... there was Todd banging away on his autocaller 
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