"R J Carpenter" wrote in message
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"David Eduardo" wrote in message
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There is also some evidence that IBOC interference can affect home
metro groundwave coverage of adjacent channel stations.

But not much. I can listen to the 1050 in the Riverside market within 10
miles of the 1020 KTNQ 50 kw IBOC site.

Yeah, but Riverside is in KTNQ's null - where their day pattern has the
equivalent of about 6kW, NOT 50kW. The KTNQ day pattern runs 6kW or less
over most of the ESE quadrant. They have far less toward Riverside at
night.
And Riverside is in the max of 1050's day pattern.

I was talking about listinening in Monterrey Park, right in the main lobe.

"David Eduardo" wrote in message
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I was talking about listinening in Monterrey Park, right in the main lobe.

My maps show Monterey Park to be off to the north of the KTNQ peak. I'd
guess down to the half-power point on the pattern, or lower. Pattern peak
direction abt 245 deg, direction to Monterey Park abt 290 deg. In any case,
30kHz spacing shouldn't be a severe test.

"R J Carpenter" wrote in message
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"David Eduardo" wrote in message
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I was talking about listinening in Monterrey Park, right in the main
lobe.

My maps show Monterey Park to be off to the north of the KTNQ peak.

Monterrey Park is right in the major lobe on the KTNQ pattern, about 8 miles
W by NW of the Industry site; the ERP there is in the vicinity of 100 to 125
kw, depending on where in Monterrey Park you are. It may be less than
towards Huntington Park, but far more than a non-DA 50 kw operation.

I'd
guess down to the half-power point on the pattern, or lower. Pattern peak
direction abt 245 deg, direction to Monterey Park abt 290 deg. In any
case,
30kHz spacing shouldn't be a severe test.

With the IE station about 45 miles away, I'd say it is a decent test. In
fact, 1050 in that area is usually a mix of XED and the IE station.