InsideRadio reports at the heart of the case, according to Audio Division chief Peter Doyle, is how far an FM antenna pattern can deviate from the ideal of a circular, perfectly non-directional pattern before it is considered to be directional.
The issue began when Lake Country Radio’s Lake Country KCKL 95.9 FM in Malakoff, TX lodged interference complaints, alleging its Class A signal has been stepped on after LKCM installed a directional antenna. Malakoff is located Southeast of the D/FW metroplex, approximately 150 to 160 miles distant of KFWR's licensed city of Jacksboro, TX.
KFWR 95.9 FM (100 Kw) Red=60dBu Local Coverage Area |
KCKL 95.9 FM (6 Kw) Red=60dBu Local coverage Area |
The FCC isn’t buying it. It says the mounting of the antenna on a tower support structure means that KFWR’s signal is distorted enough to require changes.
“The KFWR antenna pattern is for all intents and purposes directional, and must be licensed accordingly,” Doyle writes in the order, adding “There can be no question that the KFWR pattern distortion is intentional.” So the FCC is now giving LKCM until April 22 to say why KFWR shouldn’t be classified as a directional FM and its transmitter output cut back.
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