Joshua|DL3JOP
@dl3jop.bsky.social
60 followers 98 following 27 posts
Amateurradio📡 on satellites | Master's student (Systems Engineering - Electrical🪫⚡) 🏴󠁧󠁢󠁳󠁣󠁴󠁿MM/ 🇸🇪SM/ 🇩🇰OZ/ 🇩🇪DL3JOP
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dl3jop.bsky.social
Anyone got a schematic of this #hp #84812a peak power sensor? The service manual I got has no schematic in it.🙃

#hewlettpackard #amateurradio
dl3jop.bsky.social
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
dl3jop.bsky.social
Just worked SV5/DJ5MN/P in Dodecanese (Gridsquare: KM46 / distance: 2285.6 km) on RS-44 🛰️ (56.1° el / 70.3° az) using SSB #hamr #wavelog #amsat
dl3jop.bsky.social
Just worked EA7/F4DXV in Spain 🇪🇸 (Gridsquare: IM96 / distance: 1583 km) on SO-50 🛰️ (47.9° el / 42.5° az) using FM #hamr #wavelog #amsat

Thank you Jérôme for the new grid! Enjoy the beach!
dl3jop.bsky.social
Just worked VE3GOP/VY0 in Canada 🇨🇦 (Gridline: FP77,FP87 / distance: 4272.4 km) on SO-50 🛰️ (7.9° el / 329.8° az) using FM #hamr #wavelog #amsat

Thank you Alex for the contact!
dl3jop.bsky.social
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
dl3jop.bsky.social
Thank you @carsten-oz9aar.bsky.social for the moral support while repairing😝✌️
dl3jop.bsky.social
Two weeks ago I got this broken #HP8594 #spectrum #analyzer at #HAMRADIO fair in #Friedrichshafen
After a long night, multiple filter alignments and my own "interpretation" of the service manual, the unit is back alive⚡
Now I need a GPIB adapter & sig gen as well😝
#hp #radio
An HP 8594E spectrum analyzer with its calibrator output connected to its input
Reposted by Joshua|DL3JOP
amsat-dl.org
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!
Reposted by Joshua|DL3JOP
amsat-dl.org
Thanks for joining! 🛰 CU again next time.. #AMSAT #HAMRADIO
dl3jop.bsky.social
Results from my short trip to 🇱🇺 as LX/DL3JOP:
➡️33 QSOs on #RS44, #JO97, #MO122 and #SO50

Thank you for the contacts! I'll upload to LoTW asap, I'm waiting for the certificate.

#amsat #satellite #leo #hamradio
dl3jop.bsky.social
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
Reposted by Joshua|DL3JOP
darc-ev.bsky.social
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
dl3jop.bsky.social
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
Joshua sitting at a booth of a student group at the unis open day, holding three radios at once.
dl3jop.bsky.social
You're welcome, thanks for the QSO😀 I can sent you the recording if needed😆
dl3jop.bsky.social
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...
dl3jop.bsky.social
Added a feature I miss on both of my #icom #ic910: Data VOX!
A small circuit triggers the PTT when audio from the computer is present. Added a switch as well to disable it😊
That will make life easier for datamodes on satellite😊
#hamr #amateurradio #ptt #vox
dl3jop.bsky.social
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😁✌️
dl3jop.bsky.social
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
dl3jop.bsky.social
Just worked C5R in The Gambia 🇬🇲 (Gridsquare: IK13 / distance: 4561.8 km) on RS-44 🛰️ (4.4° el / 189.9° az) using SSB #hamr #wavelog #amsat

Thank you for the new DXCC on sat😇
dl3jop.bsky.social
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
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
dl3jop.bsky.social
Quick sunday repair of my #Alinco #DJ560
Two electrolytic caps on the AF PA were dead. ESR way over multiple hundred ohms.
Replaced them and the speaker regained its full volume once again😊

#hamr #radio
dl3jop.bsky.social
Just fixed the wording, of course apogee in this context is wrong. It is the height of the satellite at AOS/LOS times of an observer on earth.
dl3jop.bsky.social
Plot title is wrong, of course it isn't the satellites apogee in a given orbit, it is the max. height at my position over time. Bad choice of words on my end.