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Question About 690 Xetra/The Lounge

M

musicofyourlife

Guest
Since I'm not in the L.A. listening area I was wondering what kind of
signal 690 has in the area. I know CC moved the format over to 690
from KLAC 570 and also what is the future of 690. Who owns it and was it
one of the original boarder blasters,also what kind of power do they run.
I'd be curious also about a web site with info including pictures of the
transmitter site. I did not see anything on Fybush's site. Sorry if this has been addressed before but I'm a big fan and listen to them on-line. Thanks for any info.
 
> Since I'm not in the L.A. listening area I was wondering
> what kind of
> signal 690 has in the area. I know CC moved the format over
> to 690
> from KLAC 570 and also what is the future of 690. Who owns
> it and was it
> one of the original boarder blasters,also what kind of power
> do they run.
> I'd be curious also about a web site with info including
> pictures of the
> transmitter site. I did not see anything on Fybush's site.
> Sorry if this has been addressed before but I'm a big fan
> and listen to them on-line. Thanks for any info.
>

XETRA is 77 kw day, 50 kw night. It was just sold to Grupo PRISA from Spanin, and will go Spanish news talk in the next 90 days.

690 does not have enough signal to be effective in most of the LA market, since the noise level in LA requires at least a 10 mv/m to overcome noise and penetrate buildings. While news talk listening in English is more dependent on in-car, among Hispanics it is mostly in home.

The signal is ok along the coast, and in deep OC, but those are not heavily Hispanic areas.
 
> > Since I'm not in the L.A. listening area I was wondering
> > what kind of
> > signal 690 has in the area. I know CC moved the format
> over
> > to 690
> > from KLAC 570 and also what is the future of 690. Who owns
>
> > it and was it
> > one of the original boarder blasters,also what kind of
> power
> > do they run.
> > I'd be curious also about a web site with info including
> > pictures of the
> > transmitter site. I did not see anything on Fybush's site.
>
> > Sorry if this has been addressed before but I'm a big fan
> > and listen to them on-line. Thanks for any info.
> >
>
> XETRA is 77 kw day, 50 kw night. It was just sold to Grupo
> PRISA from Spanin, and will go Spanish news talk in the next
> 90 days.
>
> 690 does not have enough signal to be effective in most of
> the LA market, since the noise level in LA requires at least
> a 10 mv/m to overcome noise and penetrate buildings. While
> news talk listening in English is more dependent on in-car,
> among Hispanics it is mostly in home.
>
> The signal is ok along the coast, and in deep OC, but those
> are not heavily Hispanic areas.
>

David, what is required for at least a 20dB signal to noise ratio outdoors in most of the L.A. market?
 
>
> David, what is required for at least a 20dB signal to noise
> ratio outdoors in most of the L.A. market?
>

To simply overcome noise based on a variety of receivers, 10 mv/m is about the minimum. At KTNQ we found that 90% of diary returns came from inside the 15 mv/m contour, in fact.
 
> >
> > David, what is required for at least a 20dB signal to
> noise
> > ratio outdoors in most of the L.A. market?
> >
>
> To simply overcome noise based on a variety of receivers, 10
> mv/m is about the minimum. At KTNQ we found that 90% of
> diary returns came from inside the 15 mv/m contour, in fact.
>

whoa, that is a HECK OF A TON of field strength!! AUGH!! OWW!! Quit RF-BURNING me!! :-D
If it's that bad outdoors on a good car radio or excellent portable for a 20dB signal to noise ratio, what's it like in a metal and concrete building for a cheap radio? What's the minimum field there for at least 20dB snr?

Here near El Cajon / La Mesa, CA, I can hear KNX and KFI fairly well (with a little noise but it's EASILY listenable, and with a Select-A-Tenna the noise disappears completely). KMXE is a bit weaker but is still quite audible, KLAC and KABC are weaker still (moderately noisy) but I can still hear everything on them. It isn't until I get to KTNQ or KFWB that the signal is barely detectable (If I'm wearing headphones, it's quiet around me, and I crank the volume up, I might be able to detect something.) (all the above (except where specifically noted) is using my portable walkman (Panasonic, not Sony) without the Select-A-Tenna.

What field strengths might KNX or KTNQ or KMXE be putting into El Cajon in the daytime? I'm going to guess somewhere in the range of 0.25mV/m to 1mV/m, but you can correct me if I'm wrong.

I'd guess KLSD (1360) is about 10mV/m at night where I am, and it's a rock-solid blowtorch.

Are you saying Los Angeles is several dozen db noisier than San Diego, or do our ideas of a , <a href=http://70.181.196.176:1180/stephen/amradio/AM_signal_2.mp3>decent signal, , <a href=http://70.181.196.176:1180/stephen/amradio/AM_signal_4.mp3>usable signal, or <a href=http://70.181.196.176:1180/stephen/amradio/AM_signal_5.mp3>barely detectable (but I still sometimes listen to stations that are this weak)</a> differ?

<a href=http://70.181.196.176:1180/stephen/amradio/partial_am_scan_10-10-2004/1070.mp3>Here's a brief one of KNX on a SRF-42 with the Select-A-Tenna before they started running IBOC.</a> (Normally KNX would be about like one in the "decent signal" link.)<P ID="edit"><FONT class="small">Edited by tfcwings on 06/22/05 10:40 AM.</FONT></P>
 
> > Since I'm not in the L.A. listening area I was wondering
> > what kind of
> > signal 690 has in the area. I know CC moved the format
> over
> > to 690
> > from KLAC 570 and also what is the future of 690. Who owns
>
> > it and was it
> > one of the original boarder blasters,also what kind of
> power
> > do they run.
> > I'd be curious also about a web site with info including
> > pictures of the
> > transmitter site. I did not see anything on Fybush's site.
>
> > Sorry if this has been addressed before but I'm a big fan
> > and listen to them on-line. Thanks for any info.
> >
>
> XETRA is 77 kw day, 50 kw night. It was just sold to Grupo
> PRISA from Spanin, and will go Spanish news talk in the next
> 90 days.
>
> 690 does not have enough signal to be effective in most of
> the LA market, since the noise level in LA requires at least
> a 10 mv/m to overcome noise and penetrate buildings. While
> news talk listening in English is more dependent on in-car,
> among Hispanics it is mostly in home.
>
> The signal is ok along the coast, and in deep OC, but those
> are not heavily Hispanic areas.

Thanks David and the rest for the info. Man I hate the format will
go away, it's good quality music and radio. I will listen as long as
I can and maybe CC will put the format on another frequency and stream it.
Again thanks.
>
 
> KNX comes in better than kfi here in the high desert
>

KFI is operating with reduced power and a small tower for the last 6 months.
 
I know this is a pretty standard question, and perhaps I'm spacing out now, but why is it Mexico can operate stations up to 100kW (or 77kW in this case) two feet from our border, when US AMs are limited to approximately 50kW? Additionally, wouldn't the 200km rule we follow apply to Mexico?
 
> I know this is a pretty standard question, and perhaps I'm
> spacing out now, but why is it Mexico can operate stations
> up to 100kW (or 77kW in this case) two feet from our border,
> when US AMs are limited to approximately 50kW? Additionally,
> wouldn't the 200km rule we follow apply to Mexico?
>

Mexico established by treaty power limitations that are greater than those in the US. Just as, well before the FCC allowed over 5 kw on regional channels, Canada allowed 50 kw.

The 77 kw days at Rosarito give equivalent field strenght over the US to 50 kw at the old site they had. Remeber, 690 is next adjacent to 710 in LA and has to give certain protection to it. And that is what it is all about... giving protection, not power per se.
 
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