The minimum distance between two Class B stations operating on adjacent channels according to current FCC rules is 150 miles.
22.
However, HD Radio also increases adjacent channel noise due to the digital sidebands, which pose serious problems for nighttime broadcasts.
23.
With weaker radios, an adjustment of the antenna is needed, because of adjacent channel interference from Detroit's WOMC on 104.3.
24.
These distortions would show up as side lobes in a telecommunication signal and interfere with adjacent channels and impede reception.
25.
The directional pattern of WILS is limited to the east to avoid adjacent channel interference with WTRX 1330 in Flint.
26.
At the southern end of Mosman Street, in front of St Paul's Playhouse, four stones were lying in the adjacent channel.
27.
The specification calls for requiring one primary 20 MHz channel as well as a secondary adjacent channel spaced ?0 MHz away.
28.
However, the digital carriers require the bandwidth to be widened, which would cause interference to stations on the first adjacent channel.
29.
For radio transmissions this increases the occupied bandwidth, leading to adjacent channel interference, which can reduce audio clarity or increase spectrum usage.
30.
The reference distances are in turn used to create mandatory minimum spacing distances among co-channel stations, and certain adjacent channels as well.
