I am just curious if zoomer radio 740, KTRH. and KCBS Interfere with each other anywhere in the country?
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am 740
- Thread starter JohnnyOhJohnny
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They are all powerful stations. 
w9wi said:
You can pull in any semblance of KTRH in Nashville? Pretty impressive considering they send less than 200 watts ERP in your direction at night. I've never been behind their pattern at night (at least in the local area; I now am in Ohio and in a direct line between Houston and Toronto), but I assume it's a pretty impressive directional array considering all the juice they put over metro Houston after dark.
Here are my observations from 740 in other areas I've lived or visited. It's a channel I almost always make sure to check out as it's one of the more interesting ones for DXers:
Columbus - As in most of this part of the country, Toronto owns this channel at night. A blanket signal to the point you can't hear anything else even in the rare times it fades.
Dallas - Depending on the night, you can hear KTRH but it's mostly jumble. When I stayed in Fort Worth during Hurricane Ike, I couldn't listen to KTRH day or night.
Florida panhandle - I haven't been there for about six years, but KTRH owns the channel around Panama City after dark. By no means it is a killer signal - at times it's pretty strong while at other times it fades fairly deep - but I don't remember any other signal being dependable at all.
Memphis - Stopped there for a night while moving home from Houston last November, and I think it was KRMG putting in a decent signal (4 or 5 on a scale of 1 to 10). Not surprisingly, no KTRH, but I think Toronto makes its presence known that far south on occasion.
At night, once KBRT signs off, it's basically ONLY KCBS on 740 here - never heard any sign of KTRH.
The Toronto station on 740 sometimes slips in a little even down here in Tampa. It can be heard in the background of WYGM....
http://www.youtube.com/watch?v=_EFKuDkywPk
http://www.youtube.com/watch?v=_EFKuDkywPk
740 is a Canadian clear channel, so CFZM has the priority on the channel, getting to remain nondirectional at night. All of the major US signals on 740 - Tulsa, Houston, Orlando, even KCBS - have to directionalize at night to avoid putting any interference against CFZM on Canadian soil.
The other Canadians on 740 (primarily CBX Edmonton and the VOCM relay in Marystown, NL) also have to protect CFZM.
The other Canadians on 740 (primarily CBX Edmonton and the VOCM relay in Marystown, NL) also have to protect CFZM.
I enjoy Zoomer radio here in Lexington, KY at night, but in the last year or two, KRMG rips it to pieces. I am wondering if:
a. KRMG's pattern has gone crazy
b. KRMG doesn't play by the rules anymore
or
c. Zoomer ain't shootin' out the flames like they used to
Even nulling KRMG with the loop antenna doesn't eliminate their signal most nights here in East Central KY. Glad to see others are noticing KRMG "getting out" perhaps, too well at night....
a. KRMG's pattern has gone crazy
b. KRMG doesn't play by the rules anymore
or
c. Zoomer ain't shootin' out the flames like they used to
Even nulling KRMG with the loop antenna doesn't eliminate their signal most nights here in East Central KY. Glad to see others are noticing KRMG "getting out" perhaps, too well at night....
How about in Arizona??
Can you get eather KTRH or KCBS??
Can you get eather KTRH or KCBS??
WOW... if you can't null KRMG, it must have an absolute BLOWTORCH signal toward your location!! By rotating and tilting the radio, I can severely weaken (and almost null) some of my locals - a 50kW @ 7mi on 760, a 5kW IBOC @ 8mi on 600, just to name a couple... and that's using my PL-380's built-in stock loopstick antenna. For contrast, a couple 50kW stations about 98.5 miles away (640 KFI) and 111 miles away (1070 KNX) have a daytime signal strength approximately equal to (if not slightly stronger than) the signal I generally get from many of the west-coast clears and other strong 50kW night signals within several hundred miles (that is, the ones which don't have locals interfering with them).
I also tested nulling ability on one of my strongest skywave signals (1530 KFBK) , and was almost completely able to null it. I wasn't totally successful, though, due to the varying skywave. I suspect that if I picked a similar-strength local station in the daytime (it's 3:20am here now) I would have an easier time nulling it. Actually though, 1580 KMIK is usually the strongest signal here, but when I null KMIK I get an almost-as-strong signal from KBLA on the same frequency. I will say that I may have tilted the radio so the loopstick antenna was nearly vertical.
So, if you can't null KRMG, then either your antenna doesn't have a very deep null, or KRMG's signal is MUCH stronger than ANY skywave signal I've ever heard.
I also tested nulling ability on one of my strongest skywave signals (1530 KFBK) , and was almost completely able to null it. I wasn't totally successful, though, due to the varying skywave. I suspect that if I picked a similar-strength local station in the daytime (it's 3:20am here now) I would have an easier time nulling it. Actually though, 1580 KMIK is usually the strongest signal here, but when I null KMIK I get an almost-as-strong signal from KBLA on the same frequency. I will say that I may have tilted the radio so the loopstick antenna was nearly vertical.
So, if you can't null KRMG, then either your antenna doesn't have a very deep null, or KRMG's signal is MUCH stronger than ANY skywave signal I've ever heard.
Bottom line:
KRMG has been putting a lot of RF into my location in recent years where, in the past, they were RARELY heard here at night. Of course, the incoming signal is definitely skywave at night.
As for my loop connected to my clock radio..... I admit it is a cheapie desktop type, but it CAN completely null out WHAS in Louisville (DAY and NIGHT) and they are only about 60 miles away from me.
KRMG has been putting a lot of RF into my location in recent years where, in the past, they were RARELY heard here at night. Of course, the incoming signal is definitely skywave at night.
As for my loop connected to my clock radio..... I admit it is a cheapie desktop type, but it CAN completely null out WHAS in Louisville (DAY and NIGHT) and they are only about 60 miles away from me.
KR4BD said:
Interesting. I am only about 175-200 miles north/northeast of you so I will have to try to hear KRMG. But as I said earlier, Toronto absolutely rules the frequency here at night.
PS I will say the last time I was in Dallas, about three weeks ago, 740 was its usual jumble. I barely could make out KTRH - surprisingly even with its northern null, a patient listen and a close ear often can pull KTRH out of the slop there - and maybe KRMG was somewhere else there, but I couldn't tell.
schmave said:
Yep. Again, it's not blazingly strong & usually a poor third behind Toronto and KRMG, but I do hear it. I would suggest 200 watts is enough, especially on auroral nights when Toronto is missing.
When it *isn't* auroral I usually get a pretty readable signal out of Toronto. (again, KRMG means nobody in their right mind would *listen* to Toronto here, but at least you can identify the station & tell who the advertisers are.)
In New Mexico/Arizona borders I mean
Can people hear KTRH or KCBS on 740 there??
Can people hear KTRH or KCBS on 740 there??
MarioMania said:
I don't know about the border, but KCBS does not come in badly in northern Arizona near Prescott at night. No sign of Houston, ever.
Here in Charleston, it's usually Toronto, but the local 730 interferes. Tulsa also comes in often. Never picked up Houston or any of the others on the frequency. Daytime, I can sometimes pick out a faint Orlando over the co-channel noise from 730.
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