Re: [IRCA] IBOC from WTOP

["Bill Harms" <wharms@xxxxxxxxxxx>]

Alan:
	The channel is 1490 khz. What you see on that image  is a 10 minute 
(actually 9 minute 59 second long) clip measuring signal strength (based on the 
audio) that started at 0555 Eastern time (the 0 minute mark at the bottom) and 
ended at 0605 Eastern time (the 10 minute mark). WTOP turned on the IBOC at the 
5 minute mark or 0600 eastern time. The wider spread after the 5 minute mark (or at 
0600 eastern time) is the graphical display of IBOC encroaching from 1500 on 1490.  
Since the hash (5 minutes to 10 minutes) from WTOP is much stronger than the 
signals on the left side (0 minutes to 5 minutes), it covers 1490 almost completely.

I hope you can follow that.

Bill harms
 

On 4 Jun 2005 at 22:41, Alan Bosch wrote:

> Bill:
> 
> I guess is still don't get the orientation of the waveform.
> 
> Is it centered on 1500 and 6kc wide?
> 
> Then why the big bulge only toward the high side?
> 
> I thought alI IBOC was symmetrical.
> 
> AlanB
> 
> Bill Harms wrote:
> 
> >Alan:
> >
> >The receiver was an R8B and the bandwidth was 6 khz. 
> >
> >I have heard WTOP blow away WTRI in Montgomery county within WTRI's primary 
> >coverage area.  WTRI should have a complaint here, but I understand that there is 
> >no protection for second adjacent stations. 
> >
> >Bill Harms
> >Elkridge, Maryland
> >
> >On 30 May 2005 at 0:13, Alan Bosch wrote:
> >
> >  
> >
> >>Bill:
> >>
> >>Thanxmuch.  Nice to know I am not hallucinating about WTOP -- the first
> >>IBOC hash I had ever heard.
> >>
> >> Think I'll send this along to WTPI -- who (like WTOP) did not react to my
> >>first missive on the problem.
> >>
> >>What is the L-R spread in kHz?  Is it possible to get one, if this does
> >>not, going upward to 1520?
> >>    
> >>
> >
> >
> >_______________________________________________
> >IRCA mailing list
> >IRCA@xxxxxxxxxxxxxxxx
> >http://dallas.hard-core-dx.com/mailman/listinfo/irca
> >
> >Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers
> >
> >For more information: http://www.ircaonline.org
> >
> >To Post a message: irca@xxxxxxxxxxxxxxxx
> >
> >
> >  
> >
> _______________________________________________
> IRCA mailing list
> IRCA@xxxxxxxxxxxxxxxx
> http://dallas.hard-core-dx.com/mailman/listinfo/irca
> 
> Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers
> 
> For more information: http://www.ircaonline.org
> 
> To Post a message: irca@xxxxxxxxxxxxxxxx
> 


_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://dallas.hard-core-dx.com/mailman/listinfo/irca

Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers

For more information: http://www.ircaonline.org

To Post a message: irca@xxxxxxxxxxxxxxxx