Wind & TV Reception: Does Wind Impact Signal?

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Discussion Overview

The discussion revolves around the impact of wind and atmospheric conditions on TV reception, exploring both theoretical and practical aspects of signal disruption. Participants examine various factors that could influence reception, including physical alignment of antennas and atmospheric disturbances.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions whether wind can disrupt TV reception beyond physical displacement of antennas and obstacles.
  • Another participant asserts that regular air does not significantly interact with radio waves, but ionized air can interfere with signals, particularly during storms in the ionosphere.
  • A participant acknowledges the influence of ionospheric disturbances on tower-generated signals and expresses a desire to learn more about the topic.
  • Discussion includes the idea that the effect of the atmosphere on signal reception may vary based on distance from the broadcast tower, with closer signals being less affected by ionospheric conditions.
  • One participant suggests that typical TV stations are within a range that minimizes ionospheric impact, indicating that only tropospheric weather should be considered for reception issues.

Areas of Agreement / Disagreement

Participants generally agree that ionospheric conditions can affect signal propagation, particularly for signals that rely on reflections. However, there is no consensus on the extent to which wind itself impacts TV reception, and the discussion includes multiple perspectives on atmospheric effects.

Contextual Notes

Participants mention various atmospheric phenomena, such as solar flares and thunderstorms, but do not resolve the complexities of how these factors interact with TV signal reception. There is also uncertainty regarding the specific conditions under which different types of signals are affected.

Who May Find This Useful

This discussion may be of interest to individuals exploring the relationship between atmospheric conditions and radio signal propagation, as well as those curious about the technical aspects of TV reception and related technologies.

techmologist
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Can wind disrupt TV reception in any way other than the two most obvious ways: 1) blowing the receiving antenna out of alignment, and 2) blowing obstacles like trees into the path of the signal? I would think the actual air currents would be invisible to the radio waves...am I wrong?
 
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Regular air will not interact much with radio waves no matter how much it blows around. Ionized air... not that's another story. For instance, "storms" in the ionosphere will interfere with satellite signals trying to get through. And the charged state of the atmosphere during thunderstorms can interfere with reception of tower-generated signals.
 
Yes, I had tower-generated signals in mind. I don't know anything about it, but I have read that disturbances in the ionosphere can affect signal propagation. I really need to learn more about this stuff. Thanks.

EDIT: And yes, it makes sense that thunderstorms can create charged air currents that are also electrical currents.
 
The effect of the atmosphere depends on how far away you are from the broadcast tower. I am not an engineer, but I think typically TV towers are built close enough that you are getting the signal right from the tower. Whereas Ham radio at large distances relies on reflections off of the ionosphere. So Ham Radio would be more sensitive to ionosphere disturbances. Ionospheric "whether" is different than the whether we are used to near the surface of the earth. Ionospheric disturbances are caused by solar flares, or the transition at sunset, etc.
 
That makes a lot of sense. TV stations should be within 100 miles or less, so the signal can reach your rooftop antenna in a straight shot without being affected by the ionosphere. So only ordinary (troposphere?) weather need be considered. Thank you for the explanation.
 

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