[BC] Dealing with IBOC hash problems

[Kent Winrich]

FITH ADJACENT???  Something is fishy here.

I turned up an IBOC AM on 920 and 70' from the towers I could still get 890
Chicago 100+ miles away.  I sat in the main lobe (, 1 mile away) of a 50kW
station and still was abel to get stations on the third adjacent.

FYI there is no main lobe for WLAC during the day, they are Omni.

If 970 is having issues with the lower vs upper sidebands, they must have a
tilt going.  Sounds like they need to rotate their phase.


On 7/12/06, Paul Smith W4KNX <paul at amtower.com> wrote:
>
> Scott, arent you on 1560?  I know IBOC can trash the 1 and 2nd adjacent
> pretty bad, but 5th adjacent????  I've never heard of that happening.  I
> can
> see the 1490 getting trashed.  The 970 from Tampa here doesnt trash the
> upper adjacent too bad, but really trashes the lower 2 adjacents.  Could
> be
> result of assemetry (sp) in the DA causing that.  Are you in WLAC's main
> lobe?  Or maybe a null?
>
>
> Paul Smith
> W4KNX
> Sarasota, FL
>
> -----Original Message-----
> From: broadcast-bounces at radiolists.net
> [mailto:broadcast-bounces at radiolists.net]On Behalf Of Bailey, Scott
> Sent: Wednesday, July 12, 2006 10:36 AM
> To: Broadcasters' Mailing List
> Subject: RE: [BC] Dealing with IBOC hash problems
>
>
> Robert,
>   I sent you an email off list of the measurements taken in October.
> Hope you got it. I forgot, WCOR on 1490 in Lebanon, TN is suffering from
> the hash as well.
>
> Scott