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rockoneradio
Guest
For Some reason all the montgomery stations are coming in loud in clear on the west side of atlanta . V103.3 want even come in. i guess it has to do with the heat? anyone getting this?
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R
rockoneradio
Guest
hmmm
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OnTheAir123
Guest
Radio waves can propagate over the horizon when the lower atmosphere of the earth bends, scatters, and/or reflects the electromagnetic fields. These effects are collectively known as tropospheric propagation, or tropo for short. Tropospheric propagation can affect wireless communications, sometimes enhancing the usable range, but also compounding interference problems.
A less common, but often dramatic, form of tropo is called ducting or duct effect. This occurs when there is a defined, horizontal boundary between air masses having different densities. When a cool air mass is overlain by a warm air mass, as is the case along and near warm fronts and cold fronts, radio waves at VHF and UHF are reflected at the boundary if they strike it at a near-grazing angle from beneath (within the cooler air mass). Because radio waves are also reflected from the earth's surface, the result can be efficient propagation for hundreds or, in some cases, upwards of 1,000 miles, as the waves alternately bounce off the frontal boundary and the surface. Ducting can allow long-distance radio reception in the frequency-modulation (FM) broadcast band between 88 and 108 MHz. It can also affect the lower VHF television channels if receiving antennas (rather than cable networks) are used.
This is most likely what caused 103.3 to be "covered up" by the distant station.
For the complete story on Scatter, Ducting, and other means of signals reaching beyond their normal distances, check out this link.
http://www.mmmonvhf.de/tr.php
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A less common, but often dramatic, form of tropo is called ducting or duct effect. This occurs when there is a defined, horizontal boundary between air masses having different densities. When a cool air mass is overlain by a warm air mass, as is the case along and near warm fronts and cold fronts, radio waves at VHF and UHF are reflected at the boundary if they strike it at a near-grazing angle from beneath (within the cooler air mass). Because radio waves are also reflected from the earth's surface, the result can be efficient propagation for hundreds or, in some cases, upwards of 1,000 miles, as the waves alternately bounce off the frontal boundary and the surface. Ducting can allow long-distance radio reception in the frequency-modulation (FM) broadcast band between 88 and 108 MHz. It can also affect the lower VHF television channels if receiving antennas (rather than cable networks) are used.
This is most likely what caused 103.3 to be "covered up" by the distant station.
For the complete story on Scatter, Ducting, and other means of signals reaching beyond their normal distances, check out this link.
http://www.mmmonvhf.de/tr.php
8)
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IT_Guru
Guest
I remember back in the late '90's when I lived in Midtown and was on cable, one Sunday night Channel 46 was off the air they were picking up and rebroadcasting Channel 46 from North Carolina.
I hear ya. Last night all I heard was Elvis songs on my radio even though the anniversary of this death is Thursday.
Excellent show by Rabbi Andrew on WRAS last night.
Excellent show by Rabbi Andrew on WRAS last night.
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