The station operates with a four-tower directional antenna pattern, and programs a daily format of news talk, sports talk, and local news / sports reports.
32.
The antenna pattern is Non-Directional and the transmitter Location is : 28?34'51 " N, 81?04'32 " W, near Bithlo, Florida.
33.
It incorporates complex antenna pattern and radar cross section ( RCS ) pattern data as well as the effects of meteorology, terrain, environment, and countermeasures when computing power level results.
34.
The antenna pattern is the response of the antenna to a plane wave incident from a given direction or the relative power density of the wave transmitted by the antenna in a given direction.
35.
Two new towers were built for a directional-antenna pattern that would allow the station to operate at more than double its current power during the day, with nighttime power at 500 watts.
36.
In 1958, CJMT relocated its frequency from 1450 kHz to 1420 kHz and increased power from 250 watts to 1, 000 watts, using a single directional antenna pattern for day and night operation.
37.
The general direction of the transmitter can be determined using the sense antenna, and then disconnecting the sense antenna returns the sharp nulls in the loop antenna pattern, allowing a precise bearing to be determined.
38.
In 1978, then-owner Tri-Borough Broadcasting raised a second tower, adopted a directional antenna pattern, and increased its power to 5, 000 watts, but still retained its daytime-only status.
39.
In AM broadcasting, the dramatic ionospheric changes that occur overnight in the mediumwave band drive a unique broadcast license scheme, with entirely different transmitter power output levels and directional antenna patterns to cope with skywave propagation at night.
40.
The station operated at 1550 kHz, and with a daytime output power of 50, 000 watts during the day, and 10, 000 watts at night, with changing directional antenna patterns, until it was silenced in 1992.
