On Jun 2, 6:48 am, dave wrote:
Rrrado Rn wrote:
You have got to be kidding. For about two weeks I could not get KOH on
780 until someone turned off their IBOC noise maker evenings.

- - KOH was never meant to reach Ventura.

- Considering their 50 kW main lobe goes straight toward
- Ventura I'd say your statement flies in the face of the
- physics of EM propagation.

Dave - You Say What !

KKOH is North of Reno and 'serves' {covers} Reno, Carson
City and Lake Tahoe {Northern Nevada Metro}.
http://en.wikipedia.org/wiki/KKOH
It's Signal Pattern is Attenuated to the East to 'protect'
WBBM also on 780 kHz in Chicago, IL }.
http://en.wikipedia.org/wiki/WBBM_%28AM%29

NOTE - WBBM was a Class "A" [1-A] Clear Channel AM/MW
Radio Station and KOH [KKOH} is a Class "B" [II-A] 'regional'
serving Northern Nevada.

FCC List of AM/MW Radio Station "Classes" and the
http://www.fcc.gov/mb/audio/amclasses.html
FCC's AM/MW Radio Channel Plan by Frequency

Night-Time 50000 Watt AM/MW Radio Stations by Frequency
http://www.fortunecity.com/tinpan/bl...namrp/freq.htm

1 - Predicted Daytime Coverage Area for KKOH-AM
on 780 kHz in Reno, NV [Map]

http://www.radio-locator.com/cgi-bin...atus=L&hours=D

The Day-Time "Lobe" is WSW toward Chico and Sacramento
and extending out to Santa Rosa and San Jose.
-ps- Ventura, CA is SWS from Reno, NV.

2 - Predicted Night-Time Coverage Area for KKOH-AM
on 780 kHz in Reno, NV [Map]

http://www.radio-locator.com/cgi-bin...atus=L&hours=D

The Night-Time "Lobe" is West toward Chico and Sacramento
and extending out to Redding, Santa Rosa and Modesto.
-ps- Ventura, CA is SWS from Reno, NV.

-source- Radio-Locator.Com
http://www.radio-locator.com/
® 2008 Theodric Technologies LLC

NOTE - The FCC's own Night-Time Signal Graph shows
an Area that would cover Western Nevada out to include
the California Central Valley.
http://www.fcc.gov/ftp/Bureaus/MB/Da...05396-2635.pdf

ABOUT - Clear-Channel AM/MW Radio Stations
http://en.wikipedia.org/wiki/Clear_channel
http://www.oldradio.com/archives/stations/ccs.htm
http://www.fortunecity.com/tinpan/bl...rp/amradio.htm

FCC Ruling - On 29 May 1980, the FCC Ruled to Limit
the 'protected' AM/MW Radio Signal for the remaining
25 "Clear Channel Radio Stations to a 750 Mile Radius
around the Transmitter.
http://en.wikipedia.org/wiki/Clear_channel#History
-ps- That Closed-the-Door on Clear Channel Radio Stations.


just setting the record straight ~ RHF