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Ayushman Tripathi2

3:50 PM

Turning a $50 satellite dish motor into an automatic rotator/tracker with compass module for my 1m grid dish

Here are a few more pictures. Will post the video of the dish tracking automatically with the motor

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Turning a $50 satellite dish motor into an automatic rotator/tracker with compass module for my 1m grid dish

Here are a few more pictures. Will post the video of the dish tracking automatically with the motor

3:50 PM

Miguel Ríos Martín, … Alex P4

3:30 PM

This will work, but you need to counterbalance the elevation axis or the clamp screw will not last (

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This will work, but you need to counterbalance the elevation axis or the clamp screw will not last (

3:30 PM

Andrew Thornett, Liam Siddall3

1:12 PM

Cartoon: The USS Enterprise Amateur Radio Astronomy Club

Yes, I believe it was 1646 when they took the fire at the cathedral On Sat, Sep 19, 2026 at 10:09 AM

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Cartoon: The USS Enterprise Amateur Radio Astronomy Club

Yes, I believe it was 1646 when they took the fire at the cathedral On Sat, Sep 19, 2026 at 10:09 AM

1:12 PM

Andrew Thornett

12:42 PM

For those living in Europe, the terrible memories of trying to put together IKEA flat-packed furniture will immediately be bought back by this cartoon

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For those living in Europe, the terrible memories of trying to put together IKEA flat-packed furniture will immediately be bought back by this cartoon

12:42 PM

Stephen Arbogast, … bsn...@gmail.com20

Sep 18

For whatever it's worth I agree with Andrew's 16 September post. I started out in backyard RA

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For whatever it's worth I agree with Andrew's 16 September post. I started out in backyard RA

Sep 18

Bascombe Wilson

Sep 18

Meteor Radio Beacon Project

Since 2016, Chip Sufitchi, Ted Cline and I along with several others have been working to design a

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Meteor Radio Beacon Project

Since 2016, Chip Sufitchi, Ted Cline and I along with several others have been working to design a

Sep 18

Stephen Arbogast, … Lester Veenstra9

Sep 18

Playing with a PLL

How many can identify this frequency “standard” ? Lester B Veenstra K1YCM MØYCM W8YCM 6Y6Y W8YCM/6Y

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Playing with a PLL

How many can identify this frequency “standard” ? Lester B Veenstra K1YCM MØYCM W8YCM 6Y6Y W8YCM/6Y

Sep 18

Dr. Rich Russel

Sep 18

42nd Annual New Mexico Symposium

FYI Rich ----- Forwarded Message ----- From: Lori Appel via Nmsymp <nms...@listmgr.nrao.edu> To

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42nd Annual New Mexico Symposium

FYI Rich ----- Forwarded Message ----- From: Lori Appel via Nmsymp <nms...@listmgr.nrao.edu> To

Sep 18

Stephen Arbogast

Sep 18

A lot of rain here.....

We are experiencing flash floods here in the San Juan Mountains of South West Colorado. So far no

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A lot of rain here.....

We are experiencing flash floods here in the San Juan Mountains of South West Colorado. So far no

Sep 18

Stephen Arbogast, … Adrian7

Sep 17

Phase Lock Loops

As an added point to my comment that a LOCK pin provides only an approximate indication of the

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Phase Lock Loops

As an added point to my comment that a LOCK pin provides only an approximate indication of the

Sep 17

Stephen Arbogast

Sep 16

Some thoughts on data collection for HI

Please have patience with me. In the past year I have tried at 10 Meg samples per sec with my AirSpy

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Some thoughts on data collection for HI

Please have patience with me. In the past year I have tried at 10 Meg samples per sec with my AirSpy

Sep 16

Sun fun, … Stephen Arbogast9

Sep 15

Technical Ebooks for Electronics, RF & Radio Enthusiasts

Yes, my undergrad degree is EE with all the Math stuff... but H&H has been very useful over the

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Technical Ebooks for Electronics, RF & Radio Enthusiasts

Yes, my undergrad degree is EE with all the Math stuff... but H&H has been very useful over the

Sep 15

Eduard Mol, … Stephen Arbogast6

Sep 15

How AI models (LLMs) handle RA data analysis - a simple experiment

Again, I agree with Eduard. Am I in trouble with suggesting we practice good science? If we don't

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How AI models (LLMs) handle RA data analysis - a simple experiment

Again, I agree with Eduard. Am I in trouble with suggesting we practice good science? If we don't

Sep 15

Don Latham, Stephen Arbogast2

Sep 15

I tried it using FireFox... not supported! Huh? Stephen On Sunday, September 13, 2026 at 4:32:25 PM

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I tried it using FireFox... not supported! Huh? Stephen On Sunday, September 13, 2026 at 4:32:25 PM

Sep 15

Robert Meade, … Stephen Arbogast28

Sep 15

A Rapid, But Human Driven GUI HI Line RFI Excisor?

The problem with subtracting very small numbers in numerical analysis....... https://www.google.com/

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A Rapid, But Human Driven GUI HI Line RFI Excisor?

The problem with subtracting very small numbers in numerical analysis....... https://www.google.com/

Sep 15

Alex P, … Lester Veenstra13

Sep 15

" Off_The_Shelf" 1.42 GHz Antenna

Beam width is predictor of gain. That is the smaller the main beam width is, the higher the system

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" Off_The_Shelf" 1.42 GHz Antenna

Beam width is predictor of gain. That is the smaller the main beam width is, the higher the system

Sep 15

Ayushman Tripathi, … bsn...@gmail.com6

Sep 13

A 24/7 H-line station on an old Android phone with HydraSDR and DD Feed

Hi Bill, Thanks! The 3D plot comes from my own software. It is Python I wrote for the node, it stacks

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A 24/7 H-line station on an old Android phone with HydraSDR and DD Feed

Hi Bill, Thanks! The 3D plot comes from my own software. It is Python I wrote for the node, it stacks

Sep 13

Andrew Thornett, … ja...@ganssle.com3

Sep 13

Effect of changing the pull-up resistor from 4k7 to 20k on rubidium time source 5650A at LRO

Adrian, I agree with your analysis. But two points: The 1V level was with over 1 mA sinking into that

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Effect of changing the pull-up resistor from 4k7 to 20k on rubidium time source 5650A at LRO

Adrian, I agree with your analysis. But two points: The 1V level was with over 1 mA sinking into that

Sep 13

Andrew Thornett, Conrad Cardano2

Sep 13

Latest addition to the LRO scope line up on right hand side

Hi That is really cool. Let us know how it works out. Conrad On Sunday, September 13, 2026, '

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Latest addition to the LRO scope line up on right hand side

Hi That is really cool. Let us know how it works out. Conrad On Sunday, September 13, 2026, '

Sep 13

Stephen Arbogast, … Eduard Mol8

Sep 13

Fun Curve Fitting Toys to Play With.

Yup, that's pretty much exactly what I meant. Op zo 13 sep 2026 om 15:16 schreef 'Stephen

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Fun Curve Fitting Toys to Play With.

Yup, that's pretty much exactly what I meant. Op zo 13 sep 2026 om 15:16 schreef 'Stephen

Sep 13

Andrew Thornett, … ja...@ganssle.com6

Sep 13

Success! LRO Rubidium clock is working with successful lock

Sure, 20K is a good bet. Try it and see what the low voltage is. From: andrew.thornett via Society of

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Success! LRO Rubidium clock is working with successful lock

Sure, 20K is a good bet. Try it and see what the low voltage is. From: andrew.thornett via Society of

Sep 13

andrew....@googlemail.com, … SARA_Store8

Sep 12

Getting my rubidium 5650A time standard working

Andy: May I introduce you to the Time Nuts: https://febo.com/ email reflector address : time-nuts@

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Getting my rubidium 5650A time standard working

Andy: May I introduce you to the Time Nuts: https://febo.com/ email reflector address : time-nuts@

Sep 12

Andrew Thornett, … Mathew George6

Sep 12

The SARA antenna farm - source of the famous "Scope in the Box" plant.

That is so cool. On Wed, Sep 9, 2026 at 5:54 PM 'Andrew Thornett' via Society of Amateur

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The SARA antenna farm - source of the famous "Scope in the Box" plant.

That is so cool. On Wed, Sep 9, 2026 at 5:54 PM 'Andrew Thornett' via Society of Amateur

Sep 12

Sep 11

HAARP 2026: Special 9/11 Memorial Transmission Notice

A question was asked on the HamSci group about the transmit power and I'm posting it here in case

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HAARP 2026: Special 9/11 Memorial Transmission Notice

A question was asked on the HamSci group about the transmit power and I'm posting it here in case

Sep 11

andrew....@googlemail.com

Sep 11

Link for tonight's BAA RAGZoom meeting

Some people have contacted me to say having problems logging on – the link is below. Paul usually

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Link for tonight's BAA RAGZoom meeting

Some people have contacted me to say having problems logging on – the link is below. Paul usually

Sep 11

Paul Hearn, Chuck Snell2

Sep 11

BAA RAZoom Fri. 11th Sept. 19:30 BST (18:30 UTC)

I may not have BST / UTC time figured out. I tried to join this meeting (Friday 9/11 at 12:30 central

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BAA RAZoom Fri. 11th Sept. 19:30 BST (18:30 UTC)

I may not have BST / UTC time figured out. I tried to join this meeting (Friday 9/11 at 12:30 central

Sep 11

Dr. Rich Russel

Sep 10

Fw: [Alma-na-users] "ALMA at 15 years" conference: deadline for abstract submission and financial support September 15!

FYI Rich Dear North American ALMA Colleagues, Reminder that the abstract submission deadline for the

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Fw: [Alma-na-users] "ALMA at 15 years" conference: deadline for abstract submission and financial support September 15!

FYI Rich Dear North American ALMA Colleagues, Reminder that the abstract submission deadline for the

Sep 10

Dr. Rich Russel

Sep 10

Fw: BAA RAZoom Fri. Sept. 11th New presentation Zoom link.

----- Forwarded Message ----- From: BAA RA Section Director <pa...@hearn.org.uk> To: Rich Russel

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Fw: BAA RAZoom Fri. Sept. 11th New presentation Zoom link.

----- Forwarded Message ----- From: BAA RA Section Director <pa...@hearn.org.uk> To: Rich Russel

Sep 10

Sep 9

In-Band HLine Background Drift Correction

Matlab Processing In-Band Background Drift Correction Technique @ 1:22 - 1:42 Hrs https://www.youtube

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In-Band HLine Background Drift Correction

Matlab Processing In-Band Background Drift Correction Technique @ 1:22 - 1:42 Hrs https://www.youtube

Sep 9

Alex P, … Robert Meade42

Sep 9

Kraken Discovery Feed + 1m WiFi Dish & HL3D Software = Outstanding H_Line Radio Telescope

Hello Robert, This is a comparison of techniques I compiled earlier this year of drift correction

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Kraken Discovery Feed + 1m WiFi Dish & HL3D Software = Outstanding H_Line Radio Telescope

Hello Robert, This is a comparison of techniques I compiled earlier this year of drift correction

Sep 9

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