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Nathaniel Butts
, …
Hamish Barker
10
6:14 AM
Aurora Started
nice picture by the way! On Sat, 11 May 2024 at 22:12, Hamish Barker <hamish...@gmail.com>
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Aurora Started
nice picture by the way! On Sat, 11 May 2024 at 22:12, Hamish Barker <hamish...@gmail.com>
6:14 AM
Shin'ichiro Asayama
, …
Peter East
8
5:12 AM
Detection of Hydrogen 21cm emission line using inexpensive/commercially available equipment
Dear Peter, Thank you for your professional comments. As you mentioned, it is possible to design an
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Detection of Hydrogen 21cm emission line using inexpensive/commercially available equipment
Dear Peter, Thank you for your professional comments. As you mentioned, it is possible to design an
5:12 AM
ashc...@heliotown.com
May 10
Two old space shuttle re-entries captured on radio meteor array
http://www.heliotown.com/Radio_Fireball_Observatory_SpaceShuttle_reentries.html I am going through my
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Two old space shuttle re-entries captured on radio meteor array
http://www.heliotown.com/Radio_Fireball_Observatory_SpaceShuttle_reentries.html I am going through my
May 10
Alex P
, …
Lester Veenstra
14
May 10
Antenna Beam Pattern Characterization with a nanoVNA
Having worked on a commercial (RSI Antennas) microwave range, in addition to distance, the primary
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Antenna Beam Pattern Characterization with a nanoVNA
Having worked on a commercial (RSI Antennas) microwave range, in addition to distance, the primary
May 10
Dr. Rich Russel
, …
Dimitry UA3AVR
4
May 10
RTOP May 2024 video uploaded
Here is my presentation, mistakes are corrected. Detailed paper about is in March-April 2024 journal.
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RTOP May 2024 video uploaded
Here is my presentation, mistakes are corrected. Detailed paper about is in March-April 2024 journal.
May 10
Jan Lustrup
May 9
TotalPower program Beta test
I tested the v.6.0.0.Beta version of Totalpower and it looks very good. Here below is a 3D plot of
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TotalPower program Beta test
I tested the v.6.0.0.Beta version of Totalpower and it looks very good. Here below is a 3D plot of
May 9
Whitham Reeve
,
Lunar Capital
3
May 8
HAARP | Research Campaign (May 8-10, 2024)
This is the current Ionosonde reading, looks interesting. I wonder if this has anything to do with
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HAARP | Research Campaign (May 8-10, 2024)
This is the current Ionosonde reading, looks interesting. I wonder if this has anything to do with
May 8
Meddo Dan
May 8
Two mounts track and control?
Hi, I got two Mount one for the scope and one for a 1 m dish. I search for a software that could sync
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Two mounts track and control?
Hi, I got two Mount one for the scope and one for a 1 m dish. I search for a software that could sync
May 8
buffler666
May 8
frequency doublers
RE our RTOP freuency doubler conversation: EBAY has a plethora of doublers listed. All the cheapies
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frequency doublers
RE our RTOP freuency doubler conversation: EBAY has a plethora of doublers listed. All the cheapies
May 8
fasleitung3
, …
Dr. Rich Russel
10
May 8
Strong solar flare?
GOES X-ray Flux | NOAA / NWS Space Weather Prediction Center GOES X-ray Flux | NOAA / NWS Space
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Strong solar flare?
GOES X-ray Flux | NOAA / NWS Space Weather Prediction Center GOES X-ray Flux | NOAA / NWS Space
May 8
Mario
, …
Lamar Owen
13
May 7
How critical is feedhorn placement for good signal strength?
If you're observing 1.42 GHz, use 1.575GHz, the GPS L1 signal. RTL-SDR will tune that. While it
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How critical is feedhorn placement for good signal strength?
If you're observing 1.42 GHz, use 1.575GHz, the GPS L1 signal. RTL-SDR will tune that. While it
May 7
Lamar Owen
,
Marcus D. Leech
2
May 6
SDRangel screenshot controlling one of our 26 meter antennas during the solar eclipse
On 06/05/2024 12:27, Lamar Owen wrote: > So as to not continue hijacking the focus thread,
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SDRangel screenshot controlling one of our 26 meter antennas during the solar eclipse
On 06/05/2024 12:27, Lamar Owen wrote: > So as to not continue hijacking the focus thread,
May 6
Dr. Rich Russel
May 6
[Alma-na-users] ALMA Ambassadors Applications Open - deadline 24 May
Dear North American ALMA Colleagues, ALMA Ambassadors Applications Open -----------------------------
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[Alma-na-users] ALMA Ambassadors Applications Open - deadline 24 May
Dear North American ALMA Colleagues, ALMA Ambassadors Applications Open -----------------------------
May 6
Dr. Rich Russel
May 5
SARA Radio Telescope Observation Party (Sunday 1800 UTC)
Online Now. SARA Radio Telescope Observation Party SARA PRESIDENT is inviting you to a scheduled Zoom
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SARA Radio Telescope Observation Party (Sunday 1800 UTC)
Online Now. SARA Radio Telescope Observation Party SARA PRESIDENT is inviting you to a scheduled Zoom
May 5
shinichir...@gmail.com
, …
Jon Wallace
10
May 4
Galactic Rotation Curve with Portable Umbrella Hat Radio Telescope
Dear Jon, Yes, small and inexpensive telescopes are capable of doing some RA :) I will post some of
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Galactic Rotation Curve with Portable Umbrella Hat Radio Telescope
Dear Jon, Yes, small and inexpensive telescopes are capable of doing some RA :) I will post some of
May 4
jpett...@gmail.com
, …
Dan Layne
8
May 2
FW: [DSES] 30m Dish Available
Yes, we have enough space for an interferometer. We started a two-dish interferomter last year using
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FW: [DSES] 30m Dish Available
Yes, we have enough space for an interferometer. We started a two-dish interferomter last year using
May 2
Marcus D. Leech
May 2
Tracking mounts
I just noticed that Ray Crafton has built a small-dish tracking mount using a pair of worm-gear
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Tracking mounts
I just noticed that Ray Crafton has built a small-dish tracking mount using a pair of worm-gear
May 2
Marcus D. Leech
,
Anthony
4
Apr 30
More testing at the observatory today
That is great about your son Marcus! As for your daughter's, what can you do, life happens! Enjoy
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More testing at the observatory today
That is great about your son Marcus! As for your daughter's, what can you do, life happens! Enjoy
Apr 30
Alex P
, …
JERRY TAYLOR
45
Apr 29
Gal Long 227 dg
Sure, I'd love a kit of Yagi parts. I am able to solder the connection. I actually used to work
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Gal Long 227 dg
Sure, I'd love a kit of Yagi parts. I am able to solder the connection. I actually used to work
Apr 29
Alex P
,
Lester Veenstra
3
Apr 29
Small Antenna Performance Comparisons
0.75m Circular Patch Feed Disk Yagi 1.5m Circular Patch Feed Disk Yagi
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Small Antenna Performance Comparisons
0.75m Circular Patch Feed Disk Yagi 1.5m Circular Patch Feed Disk Yagi
Apr 29
Paul Hearn
Apr 29
BAA RA Section RAZoom Seminar Friday May 3rd 18:30 UTC
SARA members are invited to the BAA Radio Astronomy Section RAZoom seminar.. Alexander Anderson - SKA
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BAA RA Section RAZoom Seminar Friday May 3rd 18:30 UTC
SARA members are invited to the BAA Radio Astronomy Section RAZoom seminar.. Alexander Anderson - SKA
Apr 29
Dr. Rich Russel
Apr 27
Drake's Lounge Australia APRIL 2024 uploaded
Great Discussion! Drake's Lounge Australia Apr 2024: eclipse analysis, home RF range, galaxy
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Drake's Lounge Australia APRIL 2024 uploaded
Great Discussion! Drake's Lounge Australia Apr 2024: eclipse analysis, home RF range, galaxy
Apr 27
shinichir...@gmail.com
Apr 27
Physical Optics simulation of the Portable Mini Umbrella Hat Radio Telescope with GRASP
Hi, Here is a tutorial on how to perform physical optics simulation with GRASP. The procedure is
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Physical Optics simulation of the Portable Mini Umbrella Hat Radio Telescope with GRASP
Hi, Here is a tutorial on how to perform physical optics simulation with GRASP. The procedure is
Apr 27
Asayama Shin'ichiro
, …
b alex pettit jr
12
Apr 27
Portable Mini Umbrella Hat Radio Telescope
Dear Alex, Thank you for your suggestion. I've made a series of observations on the Galactic
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Portable Mini Umbrella Hat Radio Telescope
Dear Alex, Thank you for your suggestion. I've made a series of observations on the Galactic
Apr 27
Dr. Rich Russel
Apr 26
SARA Drake's Lounge - Australia starts in approx 1/2 hour 7pm Eastern
SARA TREASURER is inviting you to a scheduled Zoom meeting. Topic: SARA Drake's Lounge -
unread,
SARA Drake's Lounge - Australia starts in approx 1/2 hour 7pm Eastern
SARA TREASURER is inviting you to a scheduled Zoom meeting. Topic: SARA Drake's Lounge -
Apr 26
Marcus D. Leech
,
Hamish Barker
4
Apr 25
Milestone today
Great to hear. Re testing it, the Chernobyl accident was in part caused by a flawed safety test
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Milestone today
Great to hear. Re testing it, the Chernobyl accident was in part caused by a flawed safety test
Apr 25
Nathaniel Butts
, …
Douglas Decker
22
Apr 25
Drakes Lounge - 3D Printed Motor Drives
So the question is did the ring gear get shredded while trying to to move it or when it was
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Drakes Lounge - 3D Printed Motor Drives
So the question is did the ring gear get shredded while trying to to move it or when it was
Apr 25
Dr. Rich Russel
Apr 22
SARA Drake's Lounge Apr 2024 Uploaded
Great discussion! Rich Drake's Lounge Apr 2024: Eclipse Adventures Drake's Lounge Apr 2024:
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SARA Drake's Lounge Apr 2024 Uploaded
Great discussion! Rich Drake's Lounge Apr 2024: Eclipse Adventures Drake's Lounge Apr 2024:
Apr 22
Mario M.
, …
Mario
97
Apr 22
My homemade 3m parabolic radiotelescope
I've found the source of the interference. RTL SDR dongle. I've wrapped it in couple layers
unread,
My homemade 3m parabolic radiotelescope
I've found the source of the interference. RTL SDR dongle. I've wrapped it in couple layers
Apr 22
Alex P
,
Lester Veenstra
5
Apr 21
modeling and testing circular patch feed disk Yagi antennas.
Excellemt Thanks Les (CU at GB) Lester B Veenstra K1YCM MØYCM W8YCM 6Y6Y W8YCM/6Y 6Y8LV (Reformed
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modeling and testing circular patch feed disk Yagi antennas.
Excellemt Thanks Les (CU at GB) Lester B Veenstra K1YCM MØYCM W8YCM 6Y6Y W8YCM/6Y 6Y8LV (Reformed
Apr 21