Amateur Radio Astronomy
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I am an amateur optical astronomer with a question. If I connect an eight foot yagi or other comparable sized antenna to my oscilloscope and point the antenna at a bright star will I see a voltage on my oscilloscope? I am not interested in turning the voltage into an image just wondering if I would see a voltage increase when it is on a bright star. I’d like to know your thoughts before I take the time to build the antenna. I’m thinking about in the 25cm range. I’ve heard that’s an active area. My oscilloscope will read down to about 20 millivolts. Thanks
star radio-astronomy radio-telescope
asked 3 hours ago
Lambda
1133
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up vote
2
down vote
favorite
I am an amateur optical astronomer with a question. If I connect an eight foot yagi or other comparable sized antenna to my oscilloscope and point the antenna at a bright star will I see a voltage on my oscilloscope? I am not interested in turning the voltage into an image just wondering if I would see a voltage increase when it is on a bright star. I’d like to know your thoughts before I take the time to build the antenna. I’m thinking about in the 25cm range. I’ve heard that’s an active area. My oscilloscope will read down to about 20 millivolts. Thanks
star radio-astronomy radio-telescope
asked 3 hours ago
Lambda
1133
New contributor
Lambda is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
2
down vote
favorite
up vote
2
down vote
favorite
I am an amateur optical astronomer with a question. If I connect an eight foot yagi or other comparable sized antenna to my oscilloscope and point the antenna at a bright star will I see a voltage on my oscilloscope? I am not interested in turning the voltage into an image just wondering if I would see a voltage increase when it is on a bright star. I’d like to know your thoughts before I take the time to build the antenna. I’m thinking about in the 25cm range. I’ve heard that’s an active area. My oscilloscope will read down to about 20 millivolts. Thanks
star radio-astronomy radio-telescope
asked 3 hours ago
Lambda
1133
New contributor
Lambda is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am an amateur optical astronomer with a question. If I connect an eight foot yagi or other comparable sized antenna to my oscilloscope and point the antenna at a bright star will I see a voltage on my oscilloscope? I am not interested in turning the voltage into an image just wondering if I would see a voltage increase when it is on a bright star. I’d like to know your thoughts before I take the time to build the antenna. I’m thinking about in the 25cm range. I’ve heard that’s an active area. My oscilloscope will read down to about 20 millivolts. Thanks
star radio-astronomy radio-telescope
star radio-astronomy radio-telescope
asked 3 hours ago
Lambda
1133
New contributor
Lambda is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Lambda
1133
New contributor
Lambda is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Lambda
1133
New contributor
Lambda is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Lambda
1133
asked 3 hours ago
Lambda
1133
1133
New contributor
Lambda is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Lambda is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Lambda is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
add a comment |Â
1 Answer
1
active
oldest
votes
up vote
2
down vote
accepted
Stars are too dim for amateur radio equipment. There are two possible radio sources that you can detect: the sun and Jupiter.
Jupiter is particularly interesting as interactions between Io and its magnetic field produce beams of radio waves that sweep past earth every 10 hours. These are detectable in the amateur range, at about 20 MHz.
Nasa make a kit for detecting these radio signals, or it is possible to use a ham antenna, but of course it must be cut for the frequency of operation. The Nasa kit uses a phased dipole antenna which must be set up in a field or similar as the antenna is about 7m long.
Stars are not very good radio sources. Supernovae remnants such as Cassiopeia A or the Crab nebula are much brighter at radio wavelengths.
answered 2 hours ago
James K
30.1k243100
Thank you. Would and amateur setup get a signal from supernova?
– Lambda
2 hours ago
@Lambda that's an interesting question, so it's better to ask as a new question so that someone will have room to post a new answer.
– uhoh
1 hour ago
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
accepted
Stars are too dim for amateur radio equipment. There are two possible radio sources that you can detect: the sun and Jupiter.
Jupiter is particularly interesting as interactions between Io and its magnetic field produce beams of radio waves that sweep past earth every 10 hours. These are detectable in the amateur range, at about 20 MHz.
Nasa make a kit for detecting these radio signals, or it is possible to use a ham antenna, but of course it must be cut for the frequency of operation. The Nasa kit uses a phased dipole antenna which must be set up in a field or similar as the antenna is about 7m long.
Stars are not very good radio sources. Supernovae remnants such as Cassiopeia A or the Crab nebula are much brighter at radio wavelengths.
answered 2 hours ago
James K
30.1k243100
Thank you. Would and amateur setup get a signal from supernova?
– Lambda
2 hours ago
@Lambda that's an interesting question, so it's better to ask as a new question so that someone will have room to post a new answer.
– uhoh
1 hour ago
add a comment |Â
up vote
2
down vote
accepted
Stars are too dim for amateur radio equipment. There are two possible radio sources that you can detect: the sun and Jupiter.
Jupiter is particularly interesting as interactions between Io and its magnetic field produce beams of radio waves that sweep past earth every 10 hours. These are detectable in the amateur range, at about 20 MHz.
Nasa make a kit for detecting these radio signals, or it is possible to use a ham antenna, but of course it must be cut for the frequency of operation. The Nasa kit uses a phased dipole antenna which must be set up in a field or similar as the antenna is about 7m long.
Stars are not very good radio sources. Supernovae remnants such as Cassiopeia A or the Crab nebula are much brighter at radio wavelengths.
answered 2 hours ago
James K
30.1k243100
Thank you. Would and amateur setup get a signal from supernova?
– Lambda
2 hours ago
@Lambda that's an interesting question, so it's better to ask as a new question so that someone will have room to post a new answer.
– uhoh
1 hour ago
add a comment |Â
up vote
2
down vote
accepted
up vote
2
down vote
accepted
Stars are too dim for amateur radio equipment. There are two possible radio sources that you can detect: the sun and Jupiter.
Jupiter is particularly interesting as interactions between Io and its magnetic field produce beams of radio waves that sweep past earth every 10 hours. These are detectable in the amateur range, at about 20 MHz.
Nasa make a kit for detecting these radio signals, or it is possible to use a ham antenna, but of course it must be cut for the frequency of operation. The Nasa kit uses a phased dipole antenna which must be set up in a field or similar as the antenna is about 7m long.
Stars are not very good radio sources. Supernovae remnants such as Cassiopeia A or the Crab nebula are much brighter at radio wavelengths.
answered 2 hours ago
James K
30.1k243100
Stars are too dim for amateur radio equipment. There are two possible radio sources that you can detect: the sun and Jupiter.
Jupiter is particularly interesting as interactions between Io and its magnetic field produce beams of radio waves that sweep past earth every 10 hours. These are detectable in the amateur range, at about 20 MHz.
Nasa make a kit for detecting these radio signals, or it is possible to use a ham antenna, but of course it must be cut for the frequency of operation. The Nasa kit uses a phased dipole antenna which must be set up in a field or similar as the antenna is about 7m long.
Stars are not very good radio sources. Supernovae remnants such as Cassiopeia A or the Crab nebula are much brighter at radio wavelengths.
answered 2 hours ago
James K
30.1k243100
answered 2 hours ago
James K
30.1k243100
answered 2 hours ago
James K
30.1k243100
answered 2 hours ago
James K
30.1k243100
30.1k243100
Thank you. Would and amateur setup get a signal from supernova?
– Lambda
2 hours ago
@Lambda that's an interesting question, so it's better to ask as a new question so that someone will have room to post a new answer.
– uhoh
1 hour ago
add a comment |Â
Thank you. Would and amateur setup get a signal from supernova?
– Lambda
2 hours ago
@Lambda that's an interesting question, so it's better to ask as a new question so that someone will have room to post a new answer.
– uhoh
1 hour ago
Thank you. Would and amateur setup get a signal from supernova?
– Lambda
2 hours ago
Thank you. Would and amateur setup get a signal from supernova?
– Lambda
2 hours ago
@Lambda that's an interesting question, so it's better to ask as a new question so that someone will have room to post a new answer.
– uhoh
1 hour ago
@Lambda that's an interesting question, so it's better to ask as a new question so that someone will have room to post a new answer.
– uhoh
1 hour ago
add a comment |Â
Lambda is a new contributor. Be nice, and check out our Code of Conduct.
Lambda is a new contributor. Be nice, and check out our Code of Conduct.
Lambda is a new contributor. Be nice, and check out our Code of Conduct.
Lambda is a new contributor. Be nice, and check out our Code of Conduct.
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