... 50kW clear station?
You must be close enough to the clear to be able to hear and ID it throughout the day, using only a pocket-sized radio's built-in loopstick. (I'm also thinking maybe it should be strong enough to light a tune indicator, trip a scan/seek, or preferably have no audible static in the daytime, but those preferences I think can be bent.) However, there is no restriction on equipment used to hear the other station.
Either you and "the catch", or "the catch" and the clear must be located in the same country. (For example, my reception of Mexican stations under KFI and KNX does not qualify, but Mexican and Americans would qualify out from under XEWW/XETRA (one of these days I'll have to listen to their TOH ID and find out what their call really is) and XEPRS, if they indeed are clears.) Preference would be given to the catch that's located in a country that enforces stricter protections of clear stations.
Also, if the clear is directional at night, it's preferred that you DON'T live on the null side, or if you do, it should be close enough so you can hear the clear station moderately well. Reception of another co-channel clear would not qualify in this case - for example WGY under KGO would be disqualified.
If the clear and the other station are coming from similar directions so that nulling the clear also nulls the catch, that may be even better.
Of course, the clear must be on the air at the time the catch is made. Also, it should be at a time when the catch would be running its night pattern (although we know that sometimes stations "forget" to switch, and those still qualify).
I would be especially interested if someone has made a catch of a less-than-250-watts-nighttime station with a null in your direction on the opposite side of the country, when you are close enough to the co-channel clear (although an allowance can be made for an adjacent-channel IBOC clear) to be able to see the base(s) of its tower(s). Is that possible at all? As I said earlier, there is no restriction on equipment used to hear the other station, but the clear must at least be able to be heard around noon in summer using only a pocket-sized radio's built-in loopstick. (And, at the distance implied in the ultimate challenge, I suspect the clear would fill a medium-size (seated capacity probably under 5,000) auditorium, using only a crystal set without an antenna or ground connected, and an appropriately-sized speaker.)
P.S. when I posted the best graveyard DX thread, I really wanted to hear about your catches out from under co-channel locals that on their own were normally strong enough to be clearly heard over the jumble 24/7, hence why I gave the example of the Albuquerque 1240 under my local (San Diego) 1240.
You must be close enough to the clear to be able to hear and ID it throughout the day, using only a pocket-sized radio's built-in loopstick. (I'm also thinking maybe it should be strong enough to light a tune indicator, trip a scan/seek, or preferably have no audible static in the daytime, but those preferences I think can be bent.) However, there is no restriction on equipment used to hear the other station.
Either you and "the catch", or "the catch" and the clear must be located in the same country. (For example, my reception of Mexican stations under KFI and KNX does not qualify, but Mexican and Americans would qualify out from under XEWW/XETRA (one of these days I'll have to listen to their TOH ID and find out what their call really is) and XEPRS, if they indeed are clears.) Preference would be given to the catch that's located in a country that enforces stricter protections of clear stations.
Also, if the clear is directional at night, it's preferred that you DON'T live on the null side, or if you do, it should be close enough so you can hear the clear station moderately well. Reception of another co-channel clear would not qualify in this case - for example WGY under KGO would be disqualified.
If the clear and the other station are coming from similar directions so that nulling the clear also nulls the catch, that may be even better.
Of course, the clear must be on the air at the time the catch is made. Also, it should be at a time when the catch would be running its night pattern (although we know that sometimes stations "forget" to switch, and those still qualify).
I would be especially interested if someone has made a catch of a less-than-250-watts-nighttime station with a null in your direction on the opposite side of the country, when you are close enough to the co-channel clear (although an allowance can be made for an adjacent-channel IBOC clear) to be able to see the base(s) of its tower(s). Is that possible at all? As I said earlier, there is no restriction on equipment used to hear the other station, but the clear must at least be able to be heard around noon in summer using only a pocket-sized radio's built-in loopstick. (And, at the distance implied in the ultimate challenge, I suspect the clear would fill a medium-size (seated capacity probably under 5,000) auditorium, using only a crystal set without an antenna or ground connected, and an appropriately-sized speaker.)
P.S. when I posted the best graveyard DX thread, I really wanted to hear about your catches out from under co-channel locals that on their own were normally strong enough to be clearly heard over the jumble 24/7, hence why I gave the example of the Albuquerque 1240 under my local (San Diego) 1240.
