Joshua|DL3JOP
@dl3jop.bsky.social
Amateurradio📡 on satellites | Master's student (Systems Engineering - Electrical🪫⚡)
🏴MM/ 🇸🇪SM/ 🇩🇰OZ/ 🇩🇪DL3JOP
🏴MM/ 🇸🇪SM/ 🇩🇰OZ/ 🇩🇪DL3JOP
A quick test using an ESP32 three phase inverter dev board as a VFD to control my HyGain AR40 rotator. Looks like a promising solution to use it portable without the need for a bulky control box or an ac supply.
#hamr #amateurradio #diy
#hamr #amateurradio #diy
November 9, 2025 at 1:32 PM
A quick test using an ESP32 three phase inverter dev board as a VFD to control my HyGain AR40 rotator. Looks like a promising solution to use it portable without the need for a bulky control box or an ac supply.
#hamr #amateurradio #diy
#hamr #amateurradio #diy
Anyone got a schematic of this #hp #84812a peak power sensor? The service manual I got has no schematic in it.🙃
#hewlettpackard #amateurradio
#hewlettpackard #amateurradio
September 28, 2025 at 10:52 AM
Anyone got a schematic of this #hp #84812a peak power sensor? The service manual I got has no schematic in it.🙃
#hewlettpackard #amateurradio
#hewlettpackard #amateurradio
In theory my #QTRigdoppler version should now be fully working with the #icom #ic9700 as well.
As I don't have one at hand, I'd love to get your feedback:
github.com/dl3jop/QTrig...
#amsat #leo #satellite #python
As I don't have one at hand, I'd love to get your feedback:
github.com/dl3jop/QTrig...
#amsat #leo #satellite #python
September 19, 2025 at 11:05 AM
In theory my #QTRigdoppler version should now be fully working with the #icom #ic9700 as well.
As I don't have one at hand, I'd love to get your feedback:
github.com/dl3jop/QTrig...
#amsat #leo #satellite #python
As I don't have one at hand, I'd love to get your feedback:
github.com/dl3jop/QTrig...
#amsat #leo #satellite #python
Just worked TF/M0NKC/P @kconkas.bsky.social in Iceland 🇮🇸 (Gridsquare: IP13 / distance: 2118.5 km) on RS-44 🛰️ (19.5° el / 320.2° az) using SSB #hamr #wavelog #amsat
July 19, 2025 at 9:31 PM
Just worked TF/M0NKC/P @kconkas.bsky.social in Iceland 🇮🇸 (Gridsquare: IP13 / distance: 2118.5 km) on RS-44 🛰️ (19.5° el / 320.2° az) using SSB #hamr #wavelog #amsat
Reposted by Joshua|DL3JOP
Yes, use it or lose it.. every #hamradio Operator needs to act!🎙📡〰️📻 🛰 Get ready and send interference reports if you have them. Don't forget Bluewalker-3 and Bluebird 1-5, which are already transmitting on 430-440 MHz. Expect no help from anybody else than yourself!
July 11, 2025 at 4:45 PM
Yes, use it or lose it.. every #hamradio Operator needs to act!🎙📡〰️📻 🛰 Get ready and send interference reports if you have them. Don't forget Bluewalker-3 and Bluebird 1-5, which are already transmitting on 430-440 MHz. Expect no help from anybody else than yourself!
I was looking for an #icom #IC2725 for quite some time. Got a very good deal on this broken unit🤑. Two new PNP transistors, some cleaning and new thermal paste later, it runs like on the first day😁
#repair #hamr #amateurradio
#repair #hamr #amateurradio
June 4, 2025 at 6:24 PM
I was looking for an #icom #IC2725 for quite some time. Got a very good deal on this broken unit🤑. Two new PNP transistors, some cleaning and new thermal paste later, it runs like on the first day😁
#repair #hamr #amateurradio
#repair #hamr #amateurradio
Reposted by Joshua|DL3JOP
Wir bereiten dich auf die Prüfung zum Funkamateur vor. Unsere erfahrenen Ausbilder unterstützen dich auf dem gesamten Weg: 50ohm.de
#Amateurfunk #MINT #Technik #Wissenschaft #Hobby
#Amateurfunk #MINT #Technik #Wissenschaft #Hobby
June 3, 2025 at 3:36 PM
Wir bereiten dich auf die Prüfung zum Funkamateur vor. Unsere erfahrenen Ausbilder unterstützen dich auf dem gesamten Weg: 50ohm.de
#Amateurfunk #MINT #Technik #Wissenschaft #Hobby
#Amateurfunk #MINT #Technik #Wissenschaft #Hobby
Had quite a bit of fun presenting our university radio club today.
Operating three radios at once turned out to be more challenging than expected!😝
#hamradio #university #amateurradio
Operating three radios at once turned out to be more challenging than expected!😝
#hamradio #university #amateurradio
May 24, 2025 at 6:23 PM
Had quite a bit of fun presenting our university radio club today.
Operating three radios at once turned out to be more challenging than expected!😝
#hamradio #university #amateurradio
Operating three radios at once turned out to be more challenging than expected!😝
#hamradio #university #amateurradio
Thanks to @2m0sql.com my #QTRigdoppler fork now supports Yaesu rotators and a websocket integration.
I added binaries so everyone using Linux can test it just by downloading and starting the app with their IC-910 or IC-9700.
github.com/dl3jop/QTrig...
I added binaries so everyone using Linux can test it just by downloading and starting the app with their IC-910 or IC-9700.
github.com/dl3jop/QTrig...
May 11, 2025 at 2:56 PM
Thanks to @2m0sql.com my #QTRigdoppler fork now supports Yaesu rotators and a websocket integration.
I added binaries so everyone using Linux can test it just by downloading and starting the app with their IC-910 or IC-9700.
github.com/dl3jop/QTrig...
I added binaries so everyone using Linux can test it just by downloading and starting the app with their IC-910 or IC-9700.
github.com/dl3jop/QTrig...
Got my first part from JLCCNC
A 250 Watt RF resistor case.
A nickel strip is used to connect to the N socket.
Usable up to 70cm. RL on 23cm is only 15 dB, Z matches the datasheet, so I guess the feed is fine and I need a better R
Tnx @carsten-oz9aar.bsky.social for your ideas😁✌️
A 250 Watt RF resistor case.
A nickel strip is used to connect to the N socket.
Usable up to 70cm. RL on 23cm is only 15 dB, Z matches the datasheet, so I guess the feed is fine and I need a better R
Tnx @carsten-oz9aar.bsky.social for your ideas😁✌️
April 24, 2025 at 4:57 PM
Got my first part from JLCCNC
A 250 Watt RF resistor case.
A nickel strip is used to connect to the N socket.
Usable up to 70cm. RL on 23cm is only 15 dB, Z matches the datasheet, so I guess the feed is fine and I need a better R
Tnx @carsten-oz9aar.bsky.social for your ideas😁✌️
A 250 Watt RF resistor case.
A nickel strip is used to connect to the N socket.
Usable up to 70cm. RL on 23cm is only 15 dB, Z matches the datasheet, so I guess the feed is fine and I need a better R
Tnx @carsten-oz9aar.bsky.social for your ideas😁✌️
Just worked MM0MAN @manxmatty.bsky.social in Scotland 🏴 (Gridsquare: IO67 / distance: 1279.7 km) on SO-50 🛰️ (9.8° el / 321.6° az) using FM. Thank you for the new gridsquare😇
#hamr #wavelog #amsat
#hamr #wavelog #amsat
April 21, 2025 at 6:32 PM
Just worked MM0MAN @manxmatty.bsky.social in Scotland 🏴 (Gridsquare: IO67 / distance: 1279.7 km) on SO-50 🛰️ (9.8° el / 321.6° az) using FM. Thank you for the new gridsquare😇
#hamr #wavelog #amsat
#hamr #wavelog #amsat
Hey guys, do you know if anyone tried to line such photo light reflectors with wire mesh to use as antennas?
Anyone might have measured the actual deviation from a parabola shape?
#eme #parabola #antenna #amateurradio
amzn.eu/d/ftnAQZB
Anyone might have measured the actual deviation from a parabola shape?
#eme #parabola #antenna #amateurradio
amzn.eu/d/ftnAQZB
Quenox Parabol-Reflektor für Studioblitz 215 cm silber/schwarz: Amazon.de: Elektronik & Foto
Quenox Parabol-Reflektor (Studioschirm, Para-Reflexschirm, Parabolschirm) für Studioblitz 215 cm silber/schwarz auf Amazon.de - Kameras und Zubehör zu günstigen Preisen
amzn.eu
April 11, 2025 at 2:15 PM
Hey guys, do you know if anyone tried to line such photo light reflectors with wire mesh to use as antennas?
Anyone might have measured the actual deviation from a parabola shape?
#eme #parabola #antenna #amateurradio
amzn.eu/d/ftnAQZB
Anyone might have measured the actual deviation from a parabola shape?
#eme #parabola #antenna #amateurradio
amzn.eu/d/ftnAQZB
I've written a quick and dirty script to plot a satellites apogee over time to plan DX QSOs.
I don't know how much I should trust it calculating the values far in the future from current TLEs
Maybe someone can sanity check if the plots are right? 😇
#hamr #satellite #TLE
I don't know how much I should trust it calculating the values far in the future from current TLEs
Maybe someone can sanity check if the plots are right? 😇
#hamr #satellite #TLE
March 22, 2025 at 4:44 PM
I've written a quick and dirty script to plot a satellites apogee over time to plan DX QSOs.
I don't know how much I should trust it calculating the values far in the future from current TLEs
Maybe someone can sanity check if the plots are right? 😇
#hamr #satellite #TLE
I don't know how much I should trust it calculating the values far in the future from current TLEs
Maybe someone can sanity check if the plots are right? 😇
#hamr #satellite #TLE
My #QTrigdoppler fork now supports a dummy rig when no radio is connected so you can use it without a radio📡
I also improved the GUI a little and added a status window. Still some work to do.😉
github.com/dl3jop/QTrig...
#qt #amsat #radio #doppler #icom #ic910
I also improved the GUI a little and added a status window. Still some work to do.😉
github.com/dl3jop/QTrig...
#qt #amsat #radio #doppler #icom #ic910
March 15, 2025 at 4:35 PM
My #QTrigdoppler fork now supports a dummy rig when no radio is connected so you can use it without a radio📡
I also improved the GUI a little and added a status window. Still some work to do.😉
github.com/dl3jop/QTrig...
#qt #amsat #radio #doppler #icom #ic910
I also improved the GUI a little and added a status window. Still some work to do.😉
github.com/dl3jop/QTrig...
#qt #amsat #radio #doppler #icom #ic910
Just got a new-old radio.😝 It was sold as broken for the price of a #baofeng due to a very quiet speaker. Will fix it soon.
Full duplex on 2 m / 70 cm #Alinco #DJ560
#amateurradio #ham
Full duplex on 2 m / 70 cm #Alinco #DJ560
#amateurradio #ham
March 14, 2025 at 9:09 AM
Just got a new-old radio.😝 It was sold as broken for the price of a #baofeng due to a very quiet speaker. Will fix it soon.
Full duplex on 2 m / 70 cm #Alinco #DJ560
#amateurradio #ham
Full duplex on 2 m / 70 cm #Alinco #DJ560
#amateurradio #ham