Interference from two radio antennae - simplistic and workings include

In summary, the conversation is about the correct formula for finding minima and maxima in a given scenario. The correct formulas are 2λsinθ = mλ for minima and 2λsinθ = nλ for maxima, where m and n are integers. The speaker had initially made a mistake in their formula for minima, but after correcting it, they were able to understand the question.
  • #1
elemis
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1
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Is this correct ?

I have an issue for the minima formula when n=1 I get theta = 90 degrees.

This doesn't make any sense.

Is my method correct ?
 

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  • #2
Your general method is correct, but your formula for the minima is incorrect. Check your notes or text.
 
  • #3
TSny said:
Your general method is correct, but your formula for the minima is incorrect. Check your notes or text.

The formulas listed were in my notes.

Okay, for minima : 2λsinθ = mλ m=0.5,1.5,2.5,3.5...

This would give me the required non-integr half wavelengths for a minima, correct ?

EDIT : Hence m =0.5 would mean the first minima is at 30 degrees.

maxima : 2λsinθ = nλ n = 0,1,2,3,4,5...

For n =1 I still get theta to be 90 degrees... I don't see what I'm doing wrong.
 
  • #5
rude man said:
Your minima formula is wrong.

Can you check the post above yours, please ?
 
  • #6
elemis said:
The formulas listed were in my notes.

Okay, for minima : 2λsinθ = mλ m=0.5,1.5,2.5,3.5...

This would give me the required non-integr half wavelengths for a minima, correct ?

EDIT : Hence m =0.5 would mean the first minima is at 30 degrees.
No. 2sin(theta) = 0.5 does not yield theta = 30 deg.

maxima : 2λsinθ = nλ n = 0,1,2,3,4,5...

For n =1 I still get theta to be 90 degrees... I don't see what I'm doing wrong.

No. 2sin(theta) = 1 does not yield theta = 90 deg.
 
  • #7
rude man said:
No. 2sin(theta) = 0.5 does not yield theta = 30 deg.



No. 2sin(theta) = 1 does not yield theta = 90 deg.

Ah, God, silly mistakes... Forgive my lapse in concentration. Its pretty late where I am right now.

I've understood this question now. Thank you.
 

What is interference from two radio antennae?

Interference from two radio antennae is a phenomenon that occurs when two radio signals are transmitted from two separate antennas and overlap with each other, causing distortion or disruption of the signal.

How does interference from two radio antennae occur?

Interference occurs when the signals from two antennas are on the same frequency and are close enough to each other that they overlap. This causes the signals to interfere with each other, resulting in distortion or disruption of the original signal.

What are the effects of interference from two radio antennae?

The effects of interference from two radio antennae can include a decrease in signal strength, distortion of the original signal, and in severe cases, complete disruption of the signal. This can impact the quality and reliability of radio transmissions.

How can interference from two radio antennae be prevented?

Interference can be prevented by using antennas with different frequencies, increasing the distance between antennas, or by using shielding materials to minimize signal overlap. Properly aligning and positioning the antennas can also help to prevent interference.

What are some real-life examples of interference from two radio antennae?

Interference from two radio antennae can occur in various settings, such as in radio broadcasting, wireless communication systems, and satellite transmissions. It can also occur in everyday situations, such as using a cell phone in a crowded area where multiple signals are present.

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