Alex KR1ST
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kr1st.bsky.social
Alex KR1ST
@kr1st.bsky.social
86 followers 76 following 48 posts
Dutch expat now hamradioactive from North East PA.

https://www.qrz.com/db/kr1st

#Hamradio #AmateurRadio #vinyl
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Reposted by Alex KR1ST
n4jaw.bsky.social
Not sure what, if anything the current #Iss crew has done but my current reception of #SSTV images are the clearest I've ever received. Thanks #NASA and @arissintl.bsky.social #ariss #AmateurRadio #HamRadio
04/13/2025 1235 UTC SSTV image received by N4JAW over EM78 Louisville, KY. USA. 04/13/2025 1240 UTC SSTV image received by N4JAW over EM78 Louisville, KY. USA.
April 13, 2025 at 1:01 PM
kr1st.bsky.social
Just received these two SSTV images from the ISS on 145.8 MHz at 13:30 UTC (4/12/2025 09:30 EDT).

#ARISS #ARISS_SSTV #Hamradio #AmateurRadio
SSTV image 9 of 12 as received from the ISS on 04/12/2025 at 13:27 UTC. "Humans in Space" "First Human Tended Space SSTV" SSTV image 10 of 12 as received from the ISS on 04/12/2025 at 13:431 UTC. "Humans in Space" "First Ham Expedition"
April 12, 2025 at 1:47 PM
kr1st.bsky.social
Two more images (11 and 12 of 12) from the ISS on a 10 degree maximum elevation pass.

#ARISS #ISS #ARISS_SSTV #AmateurRadio #Hamradio
SSTV image 11 of 12 as received from the ISS on 04/11/2025 at 20:44 UTC. "Humans in Space" "First ISS Spaceflight Participant" SSTV image 12 of 12 as received from the ISS on 04/11/2025 at 20:48 UTC. "Humans in Space" "Last Shuttle Ham Commander"
April 11, 2025 at 9:00 PM
Reposted by Alex KR1ST
n4jaw.bsky.social
1st capture of
@arissintl.bsky.social #SSTV Series 26: Humans in Space 4/11/25 1905 UTC over EM78 Louisville, KY USA #AmateurRadio #HamRadio #ARISS #Iss
#NASARadioClubs #issfanclub
April 11, 2025 at 7:34 PM
kr1st.bsky.social
Slide 1 of 12 is in!

#ARISS ARISS_SSTV #AmateurRadio #Hamradio
SSTV image as received from the ISS on 04/11/2025 at 19:13 UTC. "Humans in Space" "Congratulations on Cosmonautics Day!" SDR Console screenshot showing a very strong signal on the waterfall of the ISS SSTV transmission on 145.8 MHZ +/- Doppler.
April 11, 2025 at 7:25 PM
kr1st.bsky.social
Awesome! I just received the #ARISS #SSTV Award by email. Thanks @arissintl.bsky.social !!
Amateur Radio on the International Space Station ARISS SSTV Award No 24033 Alex KR1ST Received SSTV images from the ISS broadcast of the Fram2Ham exercise for the planned FRAM2 space mission. The images were sent via an Amateur Radio system on 437.550 MHz, installed on the Russian segment of the International Space Station. RV3DR ARISS International Chair Frank Bauer KA3HDO ARISS Europe Chair Oliver Amend DG6BCE SSTV Gallery Operations Coordinator Will Marchant KW4WZ Mentor ARISS Europe Armand Budzianowski SP3QFE ARISS SSTV Award Manager Slawomir Szymanowsky SQ3OOK RS0ISS/NA1SS February 13-17, 2025 Fram2Ham SSTV Simulation on the International Space Station Fram2Ham Test Showing the original Fram ship. RS0ISS Series 24 Slide 9/12 NA1SS Fram2Ham Test Showing Russian Cosmonaut at the ham radio station aboard the ISS RS0ISS Series 24 Slide 10/12 NA1SS Fram2Ham Test Showing Antartica RS0ISS Series 24 Slide 8/12 NA1SS
February 20, 2025 at 10:23 PM
kr1st.bsky.social
#AHamsSilentFridayNight

#hamradio #AmateurRadio
Satellite antennas with a vertical antenna in between them on the right against an early evening starry night sky and a tree line at the bottom one third of the frame. To the left is a feedline running up to an 80m doublet in the trees. Just to the left of that, right above the tree line is a bright Venus with a dimmer Saturn to the left of it.
January 17, 2025 at 11:49 PM
kr1st.bsky.social
#AHamsSilentTuesdayMorning

#Hamradio #AmateurRadio
Head on cellphone picture of the vertical satellite yagis with a vertical antenna in between them against a very early morning sky with some clouds bands. To the right of the antennas is an almost full moon with Mars to the south east of it.
January 14, 2025 at 6:24 PM
kr1st.bsky.social
After lunch with some former university coworkers in downtown Scranton I decided to do an impromptu #POTA activation this afternoon from the Steamtown National Historic Site, US-0864.

#hamradio #AmateurRadio
Reading Lines steam locomotive at Steamtown National Historic Site in Scranton, PA Pacific Union steam locomotive at Steamtown National Historic Site in Scranton, PA QSO map with pins in the states and provinces that I worked. Inside look of the car with the 706 to the right and a laptop desk attached to the steering wheel with laptop and headset to the left.
December 16, 2024 at 11:12 PM
kr1st.bsky.social
SONATE-2 SSTV (Martin 1) images as received on 145.880 MHz at the 20:09UTC pass this afternoon.

I was too late to correct the slant on the first image, but was able to do so on the second image. Something hosed up the transmission of the 2nd image. No interference.

#hamradio #AmateurRadio
Alt text SONATE-2 SSTV (Martin 1) image as received on 145.880 MHz. I was too late to correct the slant in MMSSTV. SONATE-2 SSTV (Martin 1) image as received on 145.880 MHz. I was able to correct the slant this time, but something happened halfway during the transmission that hosed up the image. Shown are some clouds over North America.
December 14, 2024 at 8:43 PM
kr1st.bsky.social
To find out where to look in the sky for meteors, or where to aim your beam for #MeteorScatter, try the old Virgo app (Windows and Linux) maintained by DB1BM and DL8AAU:

www.dl1dbc.net/Meteorscatte...

You do have to enter your grid every time you start it, unfortunately.

#hamradio #AmateurRadio
Screenshot of the Virgo app. It shows where the meteor storms are originating from in the sky. At this time it shows the Geminids setting in the NW. The compass dial is showing lines indicating where to aim the antenna, SW or NE in this case for the Geminids.
December 14, 2024 at 3:37 PM
kr1st.bsky.social
It's a rockin' night on 2m! I just worked KB8W (751mi, 1202km) on 2m Meteor Scatter (144.150MHz, MSK144).

#hamradio #AmateurRadio
PSKReporter screenshot showing KB8W receiving me at +4dB on 144.150MHz MSK144. WSJT-X Fast Graph image of a nice meteor scatter ping I received from KB8W
December 13, 2024 at 2:01 AM
kr1st.bsky.social
This is a recording I just made of the #ISS school contact with Woodland Middle School in South Carolina today:

youtu.be/J_K_woB1aaQ

The excellent questions the students asked are in the description of the video.

#ARISS #hamradio #AmateurRadio
Woodland Middle School ISS Contact 12-02-2024
YouTube video by The Ham Lab
youtu.be
December 2, 2024 at 5:38 PM
kr1st.bsky.social
If you notice that it seems like the pi-star dashboard stops displaying Gateway Activity and Local RF Activity but is otherwise working just fine, check the disk usage of /var/log.

If it's at 100% check the FileLevel logging for the gateways and make sure it's set to 0 and reboot.

#hamradio #hamr
Screenshot showing the results of "df -h". It's showing that only 1% is used by /var/log now, but this was at 100% when I discovered the problem. Screenshot of the Configuration>Expert>DMR GW page of the pi-star dashboard showing the FileLevel set to zero in the "Log" section. This was set to "1" which means that every byte going across the gateway gets logged filling up valuable disk space. I probably fat-fingered this myself. :) Of course, this may also happen for gateways other than the DMR gateway.
November 25, 2024 at 4:39 PM
kr1st.bsky.social
It's snowing alright!

youtube.com/shorts/1-ckq...

That explains why the SWR on my antennas are slightly less than ideal tonight. 😄

#hamradio #AmateurRadio
Snow Covered Antennas 11/21/2024
YouTube video by The Ham Lab
youtube.com
November 22, 2024 at 2:00 AM
kr1st.bsky.social
Last night's loot from #ISS #SSTV passes. I caught three passes, but the images were pretty much the same on each pass.

#hamradio #AmateurRadio #ARISS #ARISS_SSTV
Owen, W5FLF, Operates Ham Station from the Space Shuttle Columbia Sergey Samburov, RV3DR and Owen, W5LFL, prior to Richard Garriott's flight to ISS Both Owen Garriott, W5LFL and his son Richard, W5KWQ, made amateur radio contacts from space
November 18, 2024 at 3:48 PM
kr1st.bsky.social
Woohoo! Just worked W4QWZ in TB on 2m FT8 (697mi, 1115km).

I'm really just on the outskirts of the tropo activity this morning, which you can tell from the many attempts to complete the QSO. I was hearing N4QWZ just fine, but he must have had a hard time hearing me. Story of my life. 😁

#hamradio
WSJT-X screenshot showing the 2m FT8 QSO between N4QWZ and me. It took many attempts to complete the QSO, but it worked out in the event. PSKReporter screenshot showing tropo activity in the eastern part of the US, mostly from the deep south to Ohio, Pennsylvania and New York.
November 17, 2024 at 3:10 PM
kr1st.bsky.social
This past Wednesday I attended an excellent RATPAC Zoom presentation by Ward Silver, N0AX, on the #EFHW antenna:

youtu.be/rBZx7Z77yoQ?...

RATPAC kindly makes recordings and slides of all the presentations they hosted available at:

www.ratpac.us/zoom

#AmateurRadio #Hamradio
End-Fed Half-wave Antennas ~ 10/13/2024
YouTube video by RATPAC Amateur Radio
youtu.be
November 16, 2024 at 4:52 PM
kr1st.bsky.social
Awesome! I worked KC9ELU on the AO-7 satellite on the 11/15/2024 22:00UTC pass today on the satellite's 50th anniversary in space. What a bird!

www.amsat.org/amsat-ao-7-a...

#AO7 #satellite #amsat #hamradio #AmateurRadio
November 16, 2024 at 3:45 AM