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This a group for discussion of the HamSCI (Ham Science Citizen Investigation) initiative.
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David G. McGaw
, …
Scott Robson
19
Jun 11
Fwd: [time-nuts] With CHU going off the air WBCQ shortwave radio may use one of its transmitters as a time station.
Most AM broadcast stations today do NOT have well-disciplined carriers. Here at Dartmouth, we have
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Fwd: [time-nuts] With CHU going off the air WBCQ shortwave radio may use one of its transmitters as a time station.
Most AM broadcast stations today do NOT have well-disciplined carriers. Here at Dartmouth, we have
Jun 11
Ham Account
, …
Petrica STOLNICU
4
Jun 11
Judge Blocks NSF From Dismantling NCAR
Good job! 73! În joi, 11 iun. 2026 la 02:51, Ward Silver <hwar...@gmail.com> a scris: Now to
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Judge Blocks NSF From Dismantling NCAR
Good job! 73! În joi, 11 iun. 2026 la 02:51, Ward Silver <hwar...@gmail.com> a scris: Now to
Jun 11
Thomas Yarish
,
Sverre Holm
2
Jun 11
Magnetometers Power GPS-Free Indoor Positioning - IEEE Spectrum
Very interesting article. They even mention collaboration between AstraNav and Sonitor. Sonitor is an
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Magnetometers Power GPS-Free Indoor Positioning - IEEE Spectrum
Very interesting article. They even mention collaboration between AstraNav and Sonitor. Sonitor is an
Jun 11
Gary Mikitin, AF8A
,
Mark Braunstein
2
Jun 9
Next Up: Meteor Scatter QSO Party, the Daytime Arietids
For those following the current MSQP web page guidelines, the program “Virgo” is no longer available.
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Next Up: Meteor Scatter QSO Party, the Daytime Arietids
For those following the current MSQP web page guidelines, the program “Virgo” is no longer available.
Jun 9
Thomas Yarish
Jun 8
California's tectonic stress has reached record level, earthquake model reveals
Sounds similar to the Philippines fault zone. Tom https://phys.org/news/2026-06-california-tectonic-
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California's tectonic stress has reached record level, earthquake model reveals
Sounds similar to the Philippines fault zone. Tom https://phys.org/news/2026-06-california-tectonic-
Jun 8
Robert Hipple
,
Gary Mikitin, AF8A
2
Jun 8
Interest in building a Grape
Robert - True, the SA612 mixer IC is no longer being manufacturred. However, significant stocks
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Interest in building a Grape
Robert - True, the SA612 mixer IC is no longer being manufacturred. However, significant stocks
Jun 8
Ethan Miller K8GU
, …
googl...@cox.net
6
Jun 8
Utilizing a commercial SWBC station for time signals
Ethan, As we consider the use of shortwave broadcast transmitters, it dawned on me that we would also
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Utilizing a commercial SWBC station for time signals
Ethan, As we consider the use of shortwave broadcast transmitters, it dawned on me that we would also
Jun 8
Thomas Yarish
, …
Steven Davidson
7
Jun 8
Re: VE7DXW’s “RF Seismograph” May Be Real Seismograph
And AP reported this news at 0455 UTC. A nearly 4 hour lag. 73 de K3FZT / Steve -- Steve Davidson
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Re: VE7DXW’s “RF Seismograph” May Be Real Seismograph
And AP reported this news at 0455 UTC. A nearly 4 hour lag. 73 de K3FZT / Steve -- Steve Davidson
Jun 8
Thomas Yarish
Jun 7
Philippines cluster
About 20 events clustered around Mindanao over past day 4.0<7.8. Tom KJ 6MKI Sent from my iPhone
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Philippines cluster
About 20 events clustered around Mindanao over past day 4.0<7.8. Tom KJ 6MKI Sent from my iPhone
Jun 7
Phil Karn
, …
Michael James Hauan
12
Jun 7
Ionosonde characteristics
I think we're on the same wavelength. Dechirping inside radiod greatly reduces the sample rates
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Ionosonde characteristics
I think we're on the same wavelength. Dechirping inside radiod greatly reduces the sample rates
Jun 7
Thomas Yarish
,
Frank M. Howell
3
Jun 6
VE7DXW’s “RF Seismograph” May Be Real Seismograph
Hi Frank, Thanks. I lost connection with Alex years ago and I didn't see his "scholarship
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VE7DXW’s “RF Seismograph” May Be Real Seismograph
Hi Frank, Thanks. I lost connection with Alex years ago and I didn't see his "scholarship
Jun 6
Howard
,
googl...@cox.net
2
Jun 6
Re: [HamSCI] Abridged summary of hamsci@googlegroups.com - 6 updates in 4 topics
Howard, CHU uses an on-site cesium atomic clocks. https://nrc.canada.ca/en/certifications-evaluations
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Re: [HamSCI] Abridged summary of hamsci@googlegroups.com - 6 updates in 4 topics
Howard, CHU uses an on-site cesium atomic clocks. https://nrc.canada.ca/en/certifications-evaluations
Jun 6
Thomas Yarish
Jun 6
Space Weather by SolarHam
https://www.solarham.com/ Sent from my iPhone
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Space Weather by SolarHam
https://www.solarham.com/ Sent from my iPhone
Jun 6
David Doler Jr
Jun 2
Re: [HamSCI] Digest for hamsci@googlegroups.com - 3 updates in 1 topic
Having recently brought a WSPRDaemon instance online, this improves my understanding of the body of
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Re: [HamSCI] Digest for hamsci@googlegroups.com - 3 updates in 1 topic
Having recently brought a WSPRDaemon instance online, this improves my understanding of the body of
Jun 2
Kristina Collins
Jun 2
ARISS Accepting Applications for Director of Education
Hi all, Per subject, a recent job posting by ARISS may be of interest to this group. Scroll down on
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ARISS Accepting Applications for Director of Education
Hi all, Per subject, a recent job posting by ARISS may be of interest to this group. Scroll down on
Jun 2
Gary Mikitin, AF8A
, …
Randy Powell
4
Jun 1
HamSCIence Zoom: Space Weather, GPS & More: Thurs Feb 12th at 2100UTC
Can this be edited? I'd like to present something like this for a high school classroom but need
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HamSCIence Zoom: Space Weather, GPS & More: Thurs Feb 12th at 2100UTC
Can this be edited? I'd like to present something like this for a high school classroom but need
Jun 1
Gary Mikitin, AF8A
, …
Tom Azlin W7SUA
3
May 31
New Resource - An Atlas of HamSCI’s PSWS Doppler Spectrograms
Thanks Gary. Too bad CHU is going away as I get interesting Doppler shifts from CHU. WWV in Colorado
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New Resource - An Atlas of HamSCI’s PSWS Doppler Spectrograms
Thanks Gary. Too bad CHU is going away as I get interesting Doppler shifts from CHU. WWV in Colorado
May 31
Matthew Canel
,
George Serafino
2
May 29
CHU QSLs to Show Value
Matthew - I am a newcomer to the Hamsci group, but based on the recent exchanges regarding the
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CHU QSLs to Show Value
Matthew - I am a newcomer to the Hamsci group, but based on the recent exchanges regarding the
May 29
Dave Swartz
May 28
WWV Amateur Radio Club Meeting 6pm May 28 - WWVB Phase Modulation
The WWV ARC is hosting Dr. Oren Eliezer, lead for the enhanced WWVB broadcast and for the design of
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WWV Amateur Radio Club Meeting 6pm May 28 - WWVB Phase Modulation
The WWV ARC is hosting Dr. Oren Eliezer, lead for the enhanced WWVB broadcast and for the design of
May 28
David W3GZS
,
googl...@cox.net
2
May 26
SMILE probe launched
David, Awesome video! Thank you for sharing this. The HEO orbit on this spacecraft is mind blowing!
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SMILE probe launched
David, Awesome video! Thank you for sharing this. The HEO orbit on this spacecraft is mind blowing!
May 26
Phil Karn
, …
googl...@cox.net
11
May 26
Anybody want to make recordings of CHU
Chris, Nice paper! I wish I could afford three of the DX Engineering loop antennas… (wink). 73, Mark
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Anybody want to make recordings of CHU
Chris, Nice paper! I wish I could afford three of the DX Engineering loop antennas… (wink). 73, Mark
May 26
Normand Juneau
May 26
Transmit site and preliminary receive site for the Arctic Over-the-Horizon Radar Program in Southern Ontario
This could be of interest. The transmit (Kawartha Lakes) an receive (Clearview Township) sites are
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Transmit site and preliminary receive site for the Arctic Over-the-Horizon Radar Program in Southern Ontario
This could be of interest. The transmit (Kawartha Lakes) an receive (Clearview Township) sites are
May 26
Robert VA3ROM
, …
Marcus D. Leech
7
May 25
Environment Canada disbands radar research team amid cuts to weather services
On 2026-05-25 04:47, David Themens wrote: > > Hi, > > They're keeping radar experts
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Environment Canada disbands radar research team amid cuts to weather services
On 2026-05-25 04:47, David Themens wrote: > > Hi, > > They're keeping radar experts
May 25
Jonathan
May 24
Fwd: VERSIM Workshop: Abstract Deadline Extended
---------- Forwarded message --------- From: František Němec <frantis...@matfyz.cuni.cz>
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Fwd: VERSIM Workshop: Abstract Deadline Extended
---------- Forwarded message --------- From: František Němec <frantis...@matfyz.cuni.cz>
May 24
Nicholas Hall-Patch
, …
Phil Erickson
19
May 24
CHU to shut down
Hi all, FYI, the science advisory board for HamSCI is preparing its own responses to this change, and
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CHU to shut down
Hi all, FYI, the science advisory board for HamSCI is preparing its own responses to this change, and
May 24
M Lombardi
, …
Phil Karn
4
May 23
CHU contact
In my experience, broadcast stations rarely do anything they're not legally required to do. I
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CHU contact
In my experience, broadcast stations rarely do anything they're not legally required to do. I
May 23
M Lombardi
, …
Roy Gertig
4
May 21
Interesting paper about using the GPS P3 method to identify solar cycle peaks
Thanks Mike. /Roy, n0rg On Mon, May 18, 2026, 06:04 Bruce Crandall <kn4...@gmail.com> wrote:
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Interesting paper about using the GPS P3 method to identify solar cycle peaks
Thanks Mike. /Roy, n0rg On Mon, May 18, 2026, 06:04 Bruce Crandall <kn4...@gmail.com> wrote:
May 21
Michael Hauan
May 21
CHU end of life.
https://nrc.canada.ca/en/certifications-evaluations-standards/canadas-official-time/nrc-shortwave-
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CHU end of life.
https://nrc.canada.ca/en/certifications-evaluations-standards/canadas-official-time/nrc-shortwave-
May 21
WILLIAM n SUSIE ENGELKE
May 21
Connection attempts to invalid domain
We have seen a large number of attempts to connect to pswsnet.eng.ua.edu . This is not valid (the
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Connection attempts to invalid domain
We have seen a large number of attempts to connect to pswsnet.eng.ua.edu . This is not valid (the
May 21
Mark Braunstein
, …
eric
9
May 20
Magnetometer hardware/software question
Good news; I was able to get my magnetometer running!! At the TAPR booth, George soldered the headers
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Magnetometer hardware/software question
Good news; I was able to get my magnetometer running!! At the TAPR booth, George soldered the headers
May 20