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Society of Amateur Radio Astronomers

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Stephen Arbogast

12/31/25

Colorado Christmas

I'm a little late but you get the idea... https://www.youtube.com/watch?v=8b3hfepgZxg&list=

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Colorado Christmas

I'm a little late but you get the idea... https://www.youtube.com/watch?v=8b3hfepgZxg&list=

12/31/25

Conrad Cardano, Stephen Arbogast3

12/31/25

ezRA and Bias Tee

Thank you and Happy New Year! On Wednesday, December 31, 2025, 'Stephen Arbogast' via Society

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ezRA and Bias Tee

Thank you and Happy New Year! On Wednesday, December 31, 2025, 'Stephen Arbogast' via Society

12/31/25

Conrad Cardano, b alex pettit jr4

12/31/25

scope in a box orientation

I don't know what software you are using, but set it up to save files at @ ~ 1 degree resolution

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scope in a box orientation

I don't know what software you are using, but set it up to save files at @ ~ 1 degree resolution

12/31/25

Ayushman Tripathi, … b alex pettit jr156

12/31/25

Cantenna feed dimensions & SDR comparison for H-line

The CCERA Plot represents a +- 0.75 MHz bandwidth about 1420.405751 ( +- 160 km/sec )

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Cantenna feed dimensions & SDR comparison for H-line

The CCERA Plot represents a +- 0.75 MHz bandwidth about 1420.405751 ( +- 160 km/sec )

12/31/25

Robert Meade, Dimitry UA3AVR4

12/31/25

20m GBO Telescope Status?

Now the telescope works well; suspended observations are being carried out. воскресенье, 28 декабря

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20m GBO Telescope Status?

Now the telescope works well; suspended observations are being carried out. воскресенье, 28 декабря

12/31/25

andrew....@googlemail.com

12/30/25

New Nooelec SAWBird H1

Re: the new Nooelec SAWBird H1 – I've just received one I ordered and notice the case is

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New Nooelec SAWBird H1

Re: the new Nooelec SAWBird H1 – I've just received one I ordered and notice the case is

12/30/25

andrew....@googlemail.com, … Robert Meade4

12/30/25

Screen recording for data collection from 150cm solar cooker radio telescope over 24 hours

The solar cooker material cost using a Discovery Feed is about the same as for the Discovery Dish and

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Screen recording for data collection from 150cm solar cooker radio telescope over 24 hours

The solar cooker material cost using a Discovery Feed is about the same as for the Discovery Dish and

12/30/25

Andrew Thornett, … b alex pettit jr4

12/30/25

Testing antenna aimed at cold sky vs hot ground - can this be conducted in daytime or must it be done at night?

Any typically point @ Zenith for the Cold-Sky reading to minimize side lobe ground noise reception

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Testing antenna aimed at cold sky vs hot ground - can this be conducted in daytime or must it be done at night?

Any typically point @ Zenith for the Cold-Sky reading to minimize side lobe ground noise reception

12/30/25

12/30/25

EVAL : SDR BiasT Power (3ea) vs LNA ( 2ea)

Here is the info = All OK ( I removed the DC isolation capacitor on a BiasT card to enable power

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EVAL : SDR BiasT Power (3ea) vs LNA ( 2ea)

Here is the info = All OK ( I removed the DC isolation capacitor on a BiasT card to enable power

12/30/25

Paul Hearn, dave bracey2

12/30/25

BAA RAZoom Friday 23rd Jan Dwingeloo

Hi Paul, yes I am definitely interested and would love to join the meeting. I don't think I am on

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BAA RAZoom Friday 23rd Jan Dwingeloo

Hi Paul, yes I am definitely interested and would love to join the meeting. I don't think I am on

12/30/25

Conrad Cardano, … Andrew Thornett8

12/29/25

That is by far the easiest method and usually effective with least effort or stress unless you have

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That is by far the easiest method and usually effective with least effort or stress unless you have

12/29/25

Conrad Cardano, … Richard Squirrel5

12/28/25

ezRA - file output

Wow! Thank you Richard Conrad On Sun, Dec 28, 2025 at 2:45 PM Richard Squirrel <savage.squirel@

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ezRA - file output

Wow! Thank you Richard Conrad On Sun, Dec 28, 2025 at 2:45 PM Richard Squirrel <savage.squirel@

12/28/25

Conrad Cardano, Andrew Thornett8

12/28/25

ezRa - no module named pkg-resources

Glad to hear you have got it sorted now. Andy Sent from Outlook for Android From: sara-list@

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ezRa - no module named pkg-resources

Glad to hear you have got it sorted now. Andy Sent from Outlook for Android From: sara-list@

12/28/25

Andrew Thornett

12/28/25

Installing setuptools on Python

To install setuptools in Python, use one of the methods below depending on what's already

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Installing setuptools on Python

To install setuptools in Python, use one of the methods below depending on what's already

12/28/25

Stephen Arbogast, Marko Cebokli2

12/28/25

Mind Boggling.... Earth's radio bubble

Some movies depict aliens watching TV from Earth. Analog TV has about 5MHz of bandwidth, and needs

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Mind Boggling.... Earth's radio bubble

Some movies depict aliens watching TV from Earth. Analog TV has about 5MHz of bandwidth, and needs

12/28/25

Alex P, … Stephen Arbogast7

12/27/25

What Is : D. Kaminski " IF_Average " ??

Okay, What you are calling "Hence, (zero) "IF" complex baseband averaging and the name

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What Is : D. Kaminski " IF_Average " ??

Okay, What you are calling "Hence, (zero) "IF" complex baseband averaging and the name

12/27/25

JERRY TAYLOR, … b alex pettit jr6

12/27/25

IFAvgtoCSV_mxb_jar.bat - Shortcut not working

EXCELLENT On Saturday, December 27, 2025 at 04:10:56 PM EST, JERRY TAYLOR <gfaj...@gmail.com>

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IFAvgtoCSV_mxb_jar.bat - Shortcut not working

EXCELLENT On Saturday, December 27, 2025 at 04:10:56 PM EST, JERRY TAYLOR <gfaj...@gmail.com>

12/27/25

Alex P, … Ayushman Tripathi13

12/26/25

Eval : Kraken 1420MHz Discovery Feed & 1m WiFi Dish :

The Discovery Feed is a great off-the-shelf solution . The Tuned Cylindrical Waveguide AKA Cantenna

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Eval : Kraken 1420MHz Discovery Feed & 1m WiFi Dish :

The Discovery Feed is a great off-the-shelf solution . The Tuned Cylindrical Waveguide AKA Cantenna

12/26/25

Dr. Rich Russel, … Brad Thomas5

12/26/25

Greatest Astronomy & Astrophysics Discoveries of 2025

Thank you Tom, I will. —Brad Thomas On Fri, Dec 26, 2025 at 6:54 PM Tom Crowley <crowleytj@hotmail

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Greatest Astronomy & Astrophysics Discoveries of 2025

Thank you Tom, I will. —Brad Thomas On Fri, Dec 26, 2025 at 6:54 PM Tom Crowley <crowleytj@hotmail

12/26/25

Andrew Thornett, … Robert Meade6

12/26/25

Possibly the ultimate switch module board?

Jim, I agree it's not the Dicke switch schematic if using a directional coupler and switching on

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Possibly the ultimate switch module board?

Jim, I agree it's not the Dicke switch schematic if using a directional coupler and switching on

12/26/25

andrew....@googlemail.com, Stephen Arbogast3

12/25/25

Emailing: ezGal560galMass_1.0100(II).jpg, ezGal570galArmsSun(II).jpg, ezSky200RBVO_14AntBAvg.jpg

I did a 24 hour drift scan for Hydrogen line just in case I might see a sign of Santa Claus but

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Emailing: ezGal560galMass_1.0100(II).jpg, ezGal570galArmsSun(II).jpg, ezSky200RBVO_14AntBAvg.jpg

I did a 24 hour drift scan for Hydrogen line just in case I might see a sign of Santa Claus but

12/25/25

12/25/25

ezRA w/ offset tuning in spectrum data (1420 MHZ vs. 1420.405 MHz)?

Does ezRA support offset tuned spectrum data with center at say 1420 MHz as opposed to 1420.405 MHz

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ezRA w/ offset tuning in spectrum data (1420 MHZ vs. 1420.405 MHz)?

Does ezRA support offset tuned spectrum data with center at say 1420 MHz as opposed to 1420.405 MHz

12/25/25

Conrad Cardano, … JERRY TAYLOR13

12/24/25

scope in a a box question

Thanks Alex. I will try the 6msps and decimation of 4. Jerry On Wed, Dec 24, 2025 at 4:28 PM 'b

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scope in a a box question

Thanks Alex. I will try the 6msps and decimation of 4. Jerry On Wed, Dec 24, 2025 at 4:28 PM 'b

12/24/25

Dr. Rich Russel, … Bruce Randall6

12/24/25

Fw: Jan/Feb 1999 SARA Journal Articles?

Hello Jim and All, There are a few people including me that read Dec 1998 article. I have refereed a

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Fw: Jan/Feb 1999 SARA Journal Articles?

Hello Jim and All, There are a few people including me that read Dec 1998 article. I have refereed a

12/24/25

andrew....@googlemail.com, Adrian3

12/24/25

Emailing: LRO-H2(SCRT)RTL-SDRv4(No-coax-relay)231225@2115.png

Haven't had chance yet on my list of jobs.... Sent from Outlook for Android From: sara-list@

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Emailing: LRO-H2(SCRT)RTL-SDRv4(No-coax-relay)231225@2115.png

Haven't had chance yet on my list of jobs.... Sent from Outlook for Android From: sara-list@

12/24/25

Stephen Arbogast, Adrian3

12/23/25

Well 4.8 microseconds, that's almost the time interval between all the great news coming out from

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Well 4.8 microseconds, that's almost the time interval between all the great news coming out from

12/23/25

Stephen Arbogast, … Adrian5

12/23/25

Question for Dr. Andrew Thornett

Oh and by the way some of us are liking it ICE cold! On Tuesday, December 23, 2025 at 2:31:03 AM UTC-

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Question for Dr. Andrew Thornett

Oh and by the way some of us are liking it ICE cold! On Tuesday, December 23, 2025 at 2:31:03 AM UTC-

12/23/25

Conrad Cardano, … Captain Anne Flint16

12/22/25

scope in a box - bias tee

Hi Stephen, I am receiving your emails wildly out of order, so if I seem unresponsive, blame some

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scope in a box - bias tee

Hi Stephen, I am receiving your emails wildly out of order, so if I seem unresponsive, blame some

12/22/25

Dr. Rich Russel

12/22/25

SARA - Drake's Lounge Dec 2025 uploaded

Drakes Lounge Dec 2025: Andromeda Galaxy and IC 34, hydrogen line mapping, Kraken SDR utilization

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SARA - Drake's Lounge Dec 2025 uploaded

Drakes Lounge Dec 2025: Andromeda Galaxy and IC 34, hydrogen line mapping, Kraken SDR utilization

12/22/25

Conrad Cardano, b alex pettit jr5

12/22/25

Scope in a a box - SDR and IF Average settings

( always ! ) On Monday, December 22, 2025 at 03:30:36 PM EST, Conrad Cardano <cardanoconrad@gmail.

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Scope in a a box - SDR and IF Average settings

( always ! ) On Monday, December 22, 2025 at 03:30:36 PM EST, Conrad Cardano <cardanoconrad@gmail.

12/22/25

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