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Great Career 'Nulls' of Locals for you folks

I can think of three -- two back near JFK and one up here

1. Near the Airport one afternoon, with a 6-tube Zenith barbershop radio and a 4-foot NRC loop, I managed a downright evil null of local WPAT 930 and heard (in order of loudness): 920 stations WJAR Providencs, upstate WGHQ Kingston, and the long-sought WTTM Trenton NJ. WTTM was obliged to send nothing northeast because of those three aforementioned stations. It was the only time I ever heard WTTM there.

2. With the same loop, tilted, and the same Zenith -- and with a few folks holding hands and their breath in some bizarre Twister-game ritual so as not to disturb the anti-matter effect -- goodbye to semi-local WVOX 1460. Hello WJJZ Mt. Holly NJ (an ad for the Burlington County Times was the clue). WJJZ 1460 was another station that tried mightily to avoid DXer ears to the northeast. Harrumph.

3. NE PA for this last one. I was actually trying to hear the clear-channel French CJBC out of Toronto one night. But there was this grumble, in English, way under them. This was too good to pass. It took the loop lying on the floor sideways, and the GE SR II lying on the coils, with some tilting and some sacroliliac grunts to obliterate CJBC completely and get an ID from a weak but steady WAMO 860 out of Pittsburgh.

Any similar episodes here? Would love to hear 'em!
 
When I lived in Dayton, Ohio I had WYFN Nashville on a non-DX clock radio on 980.
I was able to null CKLW (still doing the music format) in Dearborn MI and hear TWR, Trans World Radio.'
On the FM side, I had a broken car radio antenna and not enough left to weld something onto it (it wasn't replacable.) I had a piece of metal I'd inductively couple it with when parked. I was able to get enough of a null of 94.9 in Cincinnati to get WQMX in Medina (Akron market). I was in the northeast Dayton suburbs
 
In Cleveland, OH, in around 1961 I was able to null WKYC, the very local 50 kw 1-A clear channel and get YVKE, a 10 kw station in Caracas. This was using an HQ-180 and an air core 30" tuned box loop.
 
I've had several on FM.

In Manistee, I once nulled local 101.5 WMTE in order to hear WJNR from Iron Mountain. In Grand Rapids, I used my sister's work building to null 106.9 WOOD and got WXXC from Indiana. In Ypsilanti, I once nulled local 107.1 WQKL and got WSAQ from Port Huron.
 
Let's see...
I was able to find a null recently in my bedroom for a strong KAWZ translator on 92.5. KZHR Dayton, WA (120 miles) now comes in, albeit weakly. I'm also able to work Es now on 92.5 from Yakima; I don't have to drive down to the Lower Valley anymore. Heard KTHQ AZ and XHRM BCN last year thanks to that null.
On AM, 1460 KUTI has a null albeit very tiny. I've been able to log KRRS, KION and KCNR thanks to that. 1280 KIT has a similar null, and I've heard KFRN several times. (Still waiting for wanted KWSX Stockton!)
 
I'll also add WIOT, Toledo in Springfield, Ohio in the shadow of WTUE, both carrying Bob and Tom but one being a few seconds behind
 
In Charleston I have nulled several of our locals. 98.9 in our area is the main sports station, but has its transmitter 30 miles NE of town. There are several spots on James Island where WSPA from Spartanburg on 98.9 can overpower the semi-local station even though it is well over 200 miles away. During DX periods a lot more stations have problems locally.

I’ve nulled WTMA, our local on 1250, from 10 miles out, and gotten Tampa at night. My very first DX catch that I remember was WKQL Jacksonville on 96.9 over our local WSUY on a Walkman. That was in 1999.
 
In 1961 wasn't the 50KW local 1A in Cleveland still KYW?

It may well have been... that's why I said "around" 1961! 1100 changed calls so many times that I can't keep the years straight in my mind.
 
Best I can come up with off the top of my head....

Nulling fairly WMVP in Crystal Lake is easy. But when I was growing up ten miles east in Wauconda, then-WCFL was significantly stronger than it was here. Nevertheless I could null it at night and get XEOY on a fairly routine basis. Nowadays, where I am now, I can null WIND (which has a good night signal here), and routinely get KWTO. Then there's local WNVR. Two miles away. Easy to null and get an "unfettered" WBZ.
 
Best I can come up with off the top of my head....

Nulling fairly WMVP in Crystal Lake is easy. But when I was growing up ten miles east in Wauconda, then-WCFL was significantly stronger than it was here. Nevertheless I could null it at night and get XEOY on a fairly routine basis. Nowadays, where I am now, I can null WIND (which has a good night signal here), and routinely get KWTO. Then there's local WNVR. Two miles away. Easy to null and get an "unfettered" WBZ.

At my location WBZ blasts in at night and I only get WNVR during the day & critical hours, but when night falls WBZ overtakes it quickly.
I too have also heard KWTO under WIND.
 
Best had to be living in Bluffton, SC about 10 years ago. About 30 miles from the big class C locals in Savannah, GA. Got one dead spot in the antenna where most the Savannah stations would get a little staticky. Doing some DXing before an afternoon thunderstorm...go to 96.5 (local WJCL-FM) and instead of a staticky Savannah country station I was picking up an AOR station called K-Rock. Come to find out, I had tuned in 96.5 CayRock from the Cayman Islands...along with several other Cayman DX catches.

If you can call it a ‘null’, my XDR-F1HD ‘nulled’ the analog signal of a very close local WBQB in Fredericksburg, VA back in 2012 and I instead got perfect HD E-skip from WPOI-FM in Tampa for a solid 20-30 minutes.
 
I found a null for my local 98.7 (KMNA Mabton) a few years ago where during major Es, KMVP Phoenix wiped them out! At the same time, I had a tiny null on KDBL 92.9 and someone with 'Shut Up and Dance' Walk the Moon was interfering! That one was likely KMIY Tucson, still needed. I confirmed an Es log on 92.9 back in 2014 - KAFF Flagstaff. However, KDBL was off the air, and there was lots of 6m activity out there. A lucky break! The same day I also confirmed KRXF Sunriver OR and KISM Bellingham for new tropo scatter logs (+ KZZU Spokane which was a relog that day).
 
In Manistee, I once managed to null 99.7 Duke FM (WDKF) and got 99.7 the Storm (WIMI) from Ironwood (which is in the same direction as Duke).
 
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