I figured that when I saw the temperature differential at ground level on the weather site I use. It's 10-15 degrees warmer in West Michigan than Southeast Michigan. Unfortunately, I am presently in an area with strong IBOC sidebands. Since WDET got a new transmitter, the IBOC sidebands blast in, co...

The Flint Market has always been affected by the lack of Full Power Commercial FMs. This is partly due to the proximity of other markets, constantly changing and more restrictive rules for allotment spacings, and ridiculous adherence to First Local Service rules. Canada has long allowed directional ...

CP MOD for 140 watts DA.

https://www.fccdata.org/?lang=en&facid=138974

42 36 55 N 83 02 04 W Original CP coordinates for WDRQ/WUFL 1030. Near Triangle Dr. and Utica Rd. in Sterling Heights. If you look further at the 1988 conductivity studies at the LIC coordinates, you'll see that the 160 degree and 176 degree are both substantially below the M-3 value of 8 mS/m. This...

Actually, if you look at the application for changing WUFL, you'll find that they used the proof of performance measurements for the original DA in 1988. They found out almost immediately that they could let out the nulls toward WJTB 1040 North Ridgeville, OH, toward Detroit. WJTB went off the air i...

Arguably Indiana's most powerful AM station, at 50 kW Day/10 kW Night, WFNI 1070 will leave the air August 2, with no definitive plan to return to the air. Another sad chapter in the history of Indiana Radio. It was the legendary WIBC until 2007.

It's the WDZH AUX.

https://www.fccdata.org/?lang=en&appid= ... acid=25448

There was no de jure limit to ERP in Zone II, which Michigan used to be part of, until the early 1960s. The only limit was the practical limit of transmitter power and antenna gain. WJFM got two older 25 kW transmitters from WKZO-TV, and combined them to get the high ERP level. Later they went from ...

Back in the late 1960s and 1970s, when WFMK 99.1 was 116000 watts ERP from 300 feet, and WKAR-FM 90.5 was 125000 watts from around 800 feet, and WUOM 91.7 was 230000 watts from around 450 feet, WKAR-FM was strong during normal conditions. Both WFMK and WUOM achieved about the same signal as WKAR-FM ...

Airport code is EYW for the airport closest to Key West. http://vfrmap.com It looks like they are on a very short tower, circa 160 feet, and probably can't increase height much because of the proximity to the airport. This might cause an excessive RF field at ground level, perhaps requiring a new an...

Well, they do serve a whole lot of ocean. Maybe another station is squeezing in or upgrading somewhere else, and they paid them to downgrade? Maybe to save on power bills? Can't find a clue in this application though. https://enterpriseefiling.fcc.gov/dataentry/views/public/fmDraftCopy?displayType=h...

In some cases, usually older FM radios, emit oscillator radiation which might be heard for a block or so. This is at the received frequency plus 10.7 MHz. You can often hear a very low level of audio from the received frequency. But that doesn't explain the carrier on 96.1. Sometimes analog TV recei...

WLS Application to move near Addison, IL. One proposed move in the 1970s, showing map of proposed TL. Application Returned at request of Attorney. https://www.fccdata.org/?lang=en&hist=8999&facid=73227 This looks like the WLS TL before the change in the 1930s. https://www.fccdata.org/?lang=en&hist=8...

KC8YQQ, my old Directed Electronics add-on HD tuner would decode WLS CQUAM by swapping channels and using the HD filter, but that went away when they moved the WLS transmitter, and about that time, the D.E. tuner literally burned-up from heat and locked-up the processor; but the Kenwood HD and JVC ...

Usually, Sporadic E signals don't last that long. It might be because there are no cochannels further away than the ocean, and this is about at the minimum distance for Sporadic E. Usually, tropospheric would be the one that is stable. If you have an accurate and slow AGC signal meter, the Sporadic ...