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To transmit images back to Earth
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American Moon

To transmit images back to Earth, the astronauts useda special umbrella-shaped antenna,...

To transmit images back to Earth, the astronauts used
a special umbrella-shaped antenna, also mounted on the rover

Full Transcript

00:00:01.000 --> 00:00:03.003
To transmit images back to Earth,
00:00:03.037 --> 00:00:06.071
the astronauts used a special umbrella-shaped antenna,
00:00:06.074 --> 00:00:09.012
also mounted on the rover.
Duration
9 seconds
Views
13
Timestamp in Movie
01:41:16
Uploaded
Jun 29, 2025
Genres
documentary, history
Production
N/A

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Movie Summary

This documentary examines the authenticity of the photographic record of NASA's Apollo missions.
Obviously, the astronauts could transmit live pictures - American Moon 00:14
Obviously, the astronauts could transmit live pictures
The Earth is approximately 384,000 kilometers from the Moon, - American Moon 00:10
The Earth is approximately 384,000 kilometers from the Moon,
We quote from the NASA website: - American Moon 00:21
We quote from the NASA website:
In other words, by increasing the transmission angle, - American Moon 00:06
In other words, by increasing the transmission angle,
"Orienting the antenna with sufficient precisely was difficult," NASA writes. - American Moon 00:05
"Orienting the antenna with sufficient precisely was di...
Preliminary alignment, using the transmitter axis, - American Moon 00:07
Preliminary alignment, using the transmitter axis,
After that, the astronauts adjusted the precision - American Moon 00:08
After that, the astronauts adjusted the precision
We quote from the instruction manual from NASA: - American Moon 00:15
We quote from the instruction manual from NASA:
This is what the viewfinder of the optical device looked like. - American Moon 00:04
This is what the viewfinder of the optical device looked...
Each square represents an angle of 3 degrees. - American Moon 00:04
Each square represents an angle of 3 degrees.
"High-precision antenna target." says NASA, - American Moon 00:07
"High-precision antenna target." says NASA,
This happens when Earth is seen in the center of the target. - American Moon 00:05
This happens when Earth is seen in the center of the target.
Beyond this point, the video signal will degrade extremely rapidly, - American Moon 00:08
Beyond this point, the video signal will degrade extremely r...
In other words, and a deviation of only two degrees of antenna orientation - American Moon 00:09
In other words, and a deviation of only two degrees of anten...
We must keep in mind that both the TV camera and the transmitting antenna - American Moon 00:12
We must keep in mind that both the TV camera and the transmi...
It's a well-known problem for satellite TV crews. - American Moon 00:06
It's a well-known problem for satellite TV crews.
Their mobile units are equipped usually with special mounts, - American Moon 00:10
Their mobile units are equipped usually with special mounts,
And on Earth, the margin of error is much larger - American Moon 00:13
And on Earth, the margin of error is much larger
Thus, it is obvious that, - American Moon 00:11
Thus, it is obvious that,
What we see, however, are a series of situations - American Moon 00:11
What we see, however, are a series of situations