Thomas Telkamp
@telkamp.eu
Satellites, Radio Astronomy, SDR, Signal Processing, GPU.
CTO Lacuna Space. Dwingeloo Radio Telescope.
CTO Lacuna Space. Dwingeloo Radio Telescope.
Receiving Voyager 1 just two weeks ago at Sternwarte Bochum and @amsat-dl.org!
October 5, 2025 at 7:00 PM
Receiving Voyager 1 just two weeks ago at Sternwarte Bochum and @amsat-dl.org!
As shown by @coastal8049.bsky.social, nice rotational Doppler on IMAP.
September 26, 2025 at 10:17 AM
As shown by @coastal8049.bsky.social, nice rotational Doppler on IMAP.
It was a great day! We tracked Voyager-1 Doppler for more than 4 hours. During that time, it stayed well within 1 Hz of predicted values from the published trajectory.
September 21, 2025 at 10:06 AM
It was a great day! We tracked Voyager-1 Doppler for more than 4 hours. During that time, it stayed well within 1 Hz of predicted values from the published trajectory.
At even higher excitation levels (n=252) we can measure the radio emission in the UHF band (408 MHz).
May 25, 2025 at 2:10 PM
At even higher excitation levels (n=252) we can measure the radio emission in the UHF band (408 MHz).
These lines are weak and take a long integration time (30 minutes+) to become visible. For comparison, this is the H167⍺ RRL at M17 at the same scale as the neutral Hydrogen (HI) profile at M17.
May 25, 2025 at 2:10 PM
These lines are weak and take a long integration time (30 minutes+) to become visible. For comparison, this is the H167⍺ RRL at M17 at the same scale as the neutral Hydrogen (HI) profile at M17.
They are essentially the radio counterparts of the Balmer series of lines (n=2), which are visible light lines. In L-band we can detect 4 of these lines, from different energy levels.
May 25, 2025 at 2:10 PM
They are essentially the radio counterparts of the Balmer series of lines (n=2), which are visible light lines. In L-band we can detect 4 of these lines, from different energy levels.
Measuring Radio Recombination Lines (RRL) with the Dwingeloo telescope (@radiotelescoop.bsky.social), in the Omega Nebula (M17/W38).
May 25, 2025 at 2:08 PM
Measuring Radio Recombination Lines (RRL) with the Dwingeloo telescope (@radiotelescoop.bsky.social), in the Omega Nebula (M17/W38).
And the carrier still being received by the historic @radiotelescoop.bsky.social last week Wednesday!
May 18, 2025 at 6:07 PM
And the carrier still being received by the historic @radiotelescoop.bsky.social last week Wednesday!
So impressive. And we can still receive the Voyager 1 carrier with the historic 25 meter dish in Dwingeloo @radiotelescoop.bsky.social, as we demonstrated last week Wednesday.
May 18, 2025 at 10:59 AM
So impressive. And we can still receive the Voyager 1 carrier with the historic 25 meter dish in Dwingeloo @radiotelescoop.bsky.social, as we demonstrated last week Wednesday.
Just listening to the Voyager 1 signal on a Wednesday evening. More than 23 light hours away (25 billion km). Of course with the historic @radiotelescoop.bsky.social!
May 15, 2025 at 5:52 AM
Just listening to the Voyager 1 signal on a Wednesday evening. More than 23 light hours away (25 billion km). Of course with the historic @radiotelescoop.bsky.social!
Yesterday bouncing Zadoff-Chu sequences off the moon!
March 5, 2025 at 1:59 PM
Yesterday bouncing Zadoff-Chu sequences off the moon!
Same data, but now with a predicted Doppler profile based on the (outdated?) TLE and an uplink lock on the ESA Santa Maria ground station in the Azores. Matches quite well.
January 18, 2025 at 10:02 PM
Same data, but now with a predicted Doppler profile based on the (outdated?) TLE and an uplink lock on the ESA Santa Maria ground station in the Azores. Matches quite well.
Hakuto-R M2 Doppler measured over 7 hours last night from NL.
January 17, 2025 at 10:49 AM
Hakuto-R M2 Doppler measured over 7 hours last night from NL.
Live te zien in de @radiotelescoop.bsky.social !
January 9, 2025 at 12:15 PM
Live te zien in de @radiotelescoop.bsky.social !
We used the Dwingeloo Radio Telescope to repeat its discovery of the 3 kpc Arm of the Milky Way in 1957. And we can confirm it's still there! Yesterday's measurements (red +) overlayed on the graph from the original paper.
January 4, 2025 at 3:29 PM
We used the Dwingeloo Radio Telescope to repeat its discovery of the 3 kpc Arm of the Milky Way in 1957. And we can confirm it's still there! Yesterday's measurements (red +) overlayed on the graph from the original paper.
Juno (Jupiter, 623 million km) on a 1.5m dish, incl. Doppler tracking:
December 30, 2024 at 10:57 AM
Juno (Jupiter, 623 million km) on a 1.5m dish, incl. Doppler tracking:
Yes! We received Voyager 1 on the Dwingeloo telescope! Not bad for a telescope from 1956 and spacecraft from 1977 📡🛰️
More at www.camras.nl/en/blog/2024...
More at www.camras.nl/en/blog/2024...
December 10, 2024 at 12:04 PM
Yes! We received Voyager 1 on the Dwingeloo telescope! Not bad for a telescope from 1956 and spacecraft from 1977 📡🛰️
More at www.camras.nl/en/blog/2024...
More at www.camras.nl/en/blog/2024...