What is the astronomy reason for no UHF channel 37?

I
Thread starter swampwiz
Start date Feb 6, 2021
Tags

Astronomy Channel Reason

In summary, the conversation discusses the removal of a channel from public use due to its interference with radio astronomy. The frequency used for UHF Ch37 in the US is 608-614 MHz and it is important for radio astronomy as it allows observation in a region of the spectrum between 410 MHz and 1.4 GHz. The conversation also mentions that the population of the world may be more interested in learning about the universe than watching TV.

Mar 12, 2021

swampwiz

swampwiz said:

I presume that the corresponding size - and thus natural frequency - was the largest that could be done without making the engineering an order of magnitude more expensive.

I should have said natural wavelength instead of natural frequency.

<h2>1. What is UHF channel 37?</h2><p>UHF channel 37 refers to a specific frequency on the Ultra High Frequency (UHF) band of the electromagnetic spectrum. It is typically used for television broadcasting and falls between 608 and 614 MHz.</p><h2>2. Why is there no UHF channel 37?</h2><p>The main reason for the absence of UHF channel 37 is to avoid interference with radio astronomy observations. This frequency range is reserved for scientific research and is protected by international agreements.</p><h2>3. How does UHF channel 37 affect astronomy?</h2><p>The use of UHF channel 37 for television broadcasting can cause interference with radio telescopes and other instruments used for astronomy. This interference can disrupt data collection and hinder scientific research.</p><h2>4. Are there any other reasons for not having UHF channel 37?</h2><p>In addition to protecting radio astronomy, UHF channel 37 is also used for medical and scientific equipment, such as MRI machines and wireless medical telemetry devices. Allowing television broadcasting on this frequency could also cause interference with these important technologies.</p><h2>5. Is there a solution to the lack of UHF channel 37?</h2><p>One solution that has been proposed is to move television broadcasting to a different frequency range, such as the UHF band from 470 to 698 MHz. However, this would require significant changes to broadcasting equipment and infrastructure, making it a challenging and costly solution.</p>

1. What is UHF channel 37?

UHF channel 37 refers to a specific frequency on the Ultra High Frequency (UHF) band of the electromagnetic spectrum. It is typically used for television broadcasting and falls between 608 and 614 MHz.

2. Why is there no UHF channel 37?

The main reason for the absence of UHF channel 37 is to avoid interference with radio astronomy observations. This frequency range is reserved for scientific research and is protected by international agreements.

3. How does UHF channel 37 affect astronomy?

The use of UHF channel 37 for television broadcasting can cause interference with radio telescopes and other instruments used for astronomy. This interference can disrupt data collection and hinder scientific research.

4. Are there any other reasons for not having UHF channel 37?

In addition to protecting radio astronomy, UHF channel 37 is also used for medical and scientific equipment, such as MRI machines and wireless medical telemetry devices. Allowing television broadcasting on this frequency could also cause interference with these important technologies.

5. Is there a solution to the lack of UHF channel 37?

One solution that has been proposed is to move television broadcasting to a different frequency range, such as the UHF band from 470 to 698 MHz. However, this would require significant changes to broadcasting equipment and infrastructure, making it a challenging and costly solution.