9 Aug
2013
9 Aug
'13
4:24 p.m.
---------- Forwarded message ----------
From: *Andrew Mount*
Date: Friday, August 9, 2013
Subject: Need a starting point to learn RTL-SDR
To: Andrew Back <andrew(a)carrierdetect.com>om>, "
osmocom-sdr-request(a)lists.osmocom.org" <
osmocom-sdr-request(a)lists.osmocom.org>
Andrew,
Thank you.
I have two radio astronomy projects in mind. The first is a HF system that
will enable me to pick or zoom into a narrow band of frequencies , say
20-22 mHZ from a larger 18 - 26 mHZ range ( currently scanned by a
spectrograph) to study N type storm events from Jupiter. This will
require coding on my part as I have to interface with pre-existing software
in order to load data accepted by the NASA RADIO JOVE archive.
The other application ( much easier) is to build an RTL based 220 mHZ
range meteor scatter detection system. The meteor detection system is the
current project. I have the computer, the RTL and am waiting on the
antenna, ( due to arrive by 30 August). This has already been worked out
software wise, it is a plug and chug type of project. The advantage is
that I can be collecting meteor data by the end of the year and I will
learn about RTL SDR in the process.
In order to build my own custom SDR system, what is needed is knowledge of
a more how to -and what is- type. I need to learn the technical language,
what programs to use, how an RTL works, integration with a build ( i have
access to Matlab? ) environment, how to write drivers, etc. I need to
know how it works, how to speak the language and what are the prerequisite
tools to get the job done.
Any suggestions that would build proficiency in these areas would be
invaluable for me.
Thanks for responding so quickly and best wishes,
Andy
On Friday, August 9, 2013, Andrew Back wrote:
On 9 August 2013 13:03, Andrew Mount
<capeorion(a)gmail.com> wrote:
Are there any good books or Internet references
that the listserv members
could recommend as a starting point ?
I am an amateur astronomer who is interested in learning how to use
RTL-SDR
to do radio astronomy.
The top Google result looks promising:
http://www.rtl-sdr.com/rtl-sdr-for-budget-radio-astronomy/
Regards,
Andrew
--
Andrew Back
http://carrierdetect.com
11 Aug
11 Aug
2:24 a.m.
New subject: Need a starting point to learn RTL-SDR
As far as I understand, you do not need to write drivers or custom software,
but you may be doing something not understood in your message. Radio
Astronomy at 18-22 MHz is possible but not with any of those low cost
Dongles, for 2 general reasons. The biggest is that there are none available
for those frequencies; 18-22 MHz, the other is that they are noisy, with
only 8bit conversion. Use the SoftRock for Astronomy (Antennas are more
important). http://fivedash.com/
Radio Astronomy requires narrow band, high dynamic range, and high bit depth
all of which these dongle do not provide. The same restrictions apply for
the NAVSPASUR reception. After you build a very good antenna, NAVSPASUR
monitoring for meteors requires a CW, 3k bandwidth, with moderately good
frequency stability.
Visit my web site for massive content.
http://www.salsburg.com/NAVSPASUR/
From: osmocom-sdr-bounces(a)lists.osmocom.org
[mailto:osmocom-sdr-bounces@lists.osmocom.org] On Behalf Of Andrew Mount
Sent: Friday, August 09, 2013 9:25 AM
To: osmocom-sdr(a)lists.osmocom.org
Subject: Fwd: Need a starting point to learn RTL-SDR
---------- Forwarded message ----------
From: Andrew Mount
Date: Friday, August 9, 2013
Subject: Need a starting point to learn RTL-SDR
To: Andrew Back <andrew(a)carrierdetect.com>om>,
"osmocom-sdr-request(a)lists.osmocom.org"
<osmocom-sdr-request(a)lists.osmocom.org>
Andrew,
Thank you.
I have two radio astronomy projects in mind. The first is a HF system that
will enable me to pick or zoom into a narrow band of frequencies , say
20-22 mHZ from a larger 18 - 26 mHZ range ( currently scanned by a
spectrograph) to study N type storm events from Jupiter. This will require
coding on my part as I have to interface with pre-existing software in order
to load data accepted by the NASA RADIO JOVE archive.
The other application ( much easier) is to build an RTL based 220 mHZ range
meteor scatter detection system. The meteor detection system is the current
project. I have the computer, the RTL and am waiting on the antenna, ( due
to arrive by 30 August). This has already been worked out software wise,
it is a plug and chug type of project. The advantage is that I can be
collecting meteor data by the end of the year and I will learn about RTL SDR
in the process.
In order to build my own custom SDR system, what is needed is knowledge of
a more how to -and what is- type. I need to learn the technical language,
what programs to use, how an RTL works, integration with a build ( i have
access to Matlab? ) environment, how to write drivers, etc. I need to
know how it works, how to speak the language and what are the prerequisite
tools to get the job done.
Any suggestions that would build proficiency in these areas would be
invaluable for me.
Thanks for responding so quickly and best wishes,
Andy
On Friday, August 9, 2013, Andrew Back wrote:
On 9 August 2013 13:03, Andrew Mount <capeorion(a)gmail.com> wrote:
Are there any good books or Internet references that
the listserv members
could recommend as a starting point ?
I am an amateur astronomer who is interested in learning how to use
RTL-SDR
to do radio astronomy.
The top Google result looks promising:
http://www.rtl-sdr.com/rtl-sdr-for-budget-radio-astronomy/
Regards,
Andrew
--
Andrew Back
http://carrierdetect.com
_____
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2904 / Virus Database: 3211/6568 - Release Date: 08/10/13
7:19 p.m.
New subject: Need a starting point to learn RTL-SDR
Jay,
Thank you! Which Softrock receiver do you recommend for NAVSPASUR ?
Best wishes,
Andy
Sent from my iPad
On Aug 10, 2013, at 8:24 PM, "Jay Salsburg" <jsalsburg(a)bellsouth.net>
wrote:
As far as I understand, you do not need to write
drivers or custom software, but you may be doing something not understood in your message.
Radio Astronomy at 18-22 MHz is possible but not with any of those low cost Dongles, for 2
general reasons. The biggest is that there are none available for those frequencies; 18-22
MHz, the other is that they are noisy, with only 8bit conversion. Use the SoftRock for
Astronomy (Antennas are more important). http://fivedash.com/
Radio Astronomy requires narrow band, high dynamic range, and high bit depth all of which
these dongle do not provide. The same restrictions apply for the NAVSPASUR reception.
After you build a very good antenna, NAVSPASUR monitoring for meteors requires a CW, 3k
bandwidth, with moderately good frequency stability.
Visit my web site for massive content.
http://www.salsburg.com/NAVSPASUR/
From: osmocom-sdr-bounces(a)lists.osmocom.org
[mailto:osmocom-sdr-bounces@lists.osmocom.org] On Behalf Of Andrew Mount
Sent: Friday, August 09, 2013 9:25 AM
To: osmocom-sdr(a)lists.osmocom.org
Subject: Fwd: Need a starting point to learn RTL-SDR
---------- Forwarded message ----------
From: Andrew Mount
Date: Friday, August 9, 2013
Subject: Need a starting point to learn RTL-SDR
To: Andrew Back <andrew(a)carrierdetect.com>om>,
"osmocom-sdr-request(a)lists.osmocom.org"
<osmocom-sdr-request(a)lists.osmocom.org>
Andrew,
Thank you.
I have two radio astronomy projects in mind. The first is a HF system that will enable
me to pick or zoom into a narrow band of frequencies , say 20-22 mHZ from a larger 18 -
26 mHZ range ( currently scanned by a spectrograph) to study N type storm events from
Jupiter. This will require coding on my part as I have to interface with pre-existing
software in order to load data accepted by the NASA RADIO JOVE archive.
The other application ( much easier) is to build an RTL based 220 mHZ range meteor
scatter detection system. The meteor detection system is the current project. I have the
computer, the RTL and am waiting on the antenna, ( due to arrive by 30 August). This has
already been worked out software wise, it is a plug and chug type of project. The
advantage is that I can be collecting meteor data by the end of the year and I will learn
about RTL SDR in the process.
In order to build my own custom SDR system, what is needed is knowledge of a more how to
-and what is- type. I need to learn the technical language, what programs to use, how an
RTL works, integration with a build ( i have access to Matlab? ) environment, how to
write drivers, etc. I need to know how it works, how to speak the language and what are
the prerequisite tools to get the job done.
Any suggestions that would build proficiency in these areas would be invaluable for me.
Thanks for responding so quickly and best wishes,
Andy
On Friday, August 9, 2013, Andrew Back wrote:
On 9 August 2013 13:03, Andrew Mount <capeorion(a)gmail.com> wrote:
Are there any good books or Internet references
that the listserv members
could recommend as a starting point ?
I am an amateur astronomer who is interested in learning how to use RTL-SDR
to do radio astronomy.
The top Google result looks promising:
http://www.rtl-sdr.com/rtl-sdr-for-budget-radio-astronomy/
Regards,
Andrew
--
Andrew Back
http://carrierdetect.com
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2904 / Virus Database: 3211/6568 - Release Date: 08/10/13
3933
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2 comments
3 participants
participants (3)
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Andrew Mount -
Andy Mount
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Jay Salsburg