Posted by Dan on December 13, 2009 at 10:52:32:
In Reply to: Re: Dangerously high levels of AM construction posted by dd92 on December 13, 2009 at 10:50:00:
: Years ago when I built the AM-820, WAIT, night array in Elmhurst, IL (for previous owners) the signal barely covered the north western city limits of Chicago. WBAP puts a gargantuan skywave into Chicago.
remember visiting the Chicago area around 1970. Back in those days, WAIT 820 was a daytimer transmitting from Elmhurst. (Can't recall whether they were allowed to stay on at full power until Fort Worth sunset, but that can't be much later than Chicago sunset.) Anyhow, I was picked up at O'Hare in the late afternoon (can't remember what season of the year it was) and we drove up to someplace in southern WI to spend the night before a visit to an industrial plant the next morning. WAIT was running a beautiful music format and we rode it all the way up to our destination. Wonderful clean signal and nice music too. No hint of WBAP (or WOSU) but it must have stll been daylight the whole way. 15.5 mV/m is certainly a believable NIF. If the distance from the new night site to the CoL really is the 20 or so miles I've guessed, it's hard to imagine that the signal in Willow Springs will be listenable every night. OTOH, with that great soil conductivity, maybe it will be.