It has been shown before that word of mouth is the best way to advertise a new radio station. The best example of that was in 1983 when Z-100 went from worst to first. I saw a full page ad on the cover of AM New York for WRXP today. It is very possible that listeners will find the new 101.9 by accident by just going up and down the dial. Very few people will go down to 87.7 FM unless they know something is down there. Thus, that station will have to begin an aggressive marketing campaign. I guess they should hire Tony Santiago as a consultant 
Bruce
Bruce