I would like to know the coverage in Km radius
2007-04-14 00:46:34 · 2 answers · asked by st. p 1 in Science & Mathematics ➔ Engineering
No easy answer here. As a rule of thumb you need four time the power to double the range. At 100 watts under best conditions with a good antenna I would say around 40 miles. Really I'd give you about a 5 mile area.
The Broadcast power of Transmitter is effected by many things, including the tower height, Frequency, antenna design and the actual transmitter it's self. Effective Radiated Power is calculated based on this.
2007-04-14 01:34:13 · answer #1 · answered by fakrmage 2 · 0⤊ 0⤋
simply look on your license grant. it will show the erp (effective radiated power) and the haat (height above average terrain) of the antenna. go to the FCC website (www.fcc.gov/mb/audio/bickel/curves.html ) which has a calculator for you.
assuming a dipole antenna, the erp would be 0.1 kw and the tower to be under 30 meters, the reach to 60 dBu contour is 5.6 km. 60 dBu is the standard service contour. as a pratical matter, sensitive car radios often work to 40 dBu which is 18 km.
2007-04-15 14:05:44 · answer #2 · answered by lare 7 · 0⤊ 0⤋