Juliusz Sokolowski

@AlanAtTek That is cool and not in the least suppressing.

I learned yesterday that my video on the Basics of the Superheterodyne Receiver was being used in an amateur radio Technician training class for Electronic Warfare Officers and SIGINT specialists in the National Guard. How cool is that?!? youtu.be/Vf06HSR4LdY

Working a quick pileup from SK6SAQ at the World Heritage Site of Grimeton radio station SAQ. #SAQ #hamradio

@M0SKN_SA5IKN Probably...

@SA5JUS Hi Juliusz, probably was beaming in your direction:)

@M0SKN_SA5IKN Heard you on the RS-44 uplink just now... 📡📶

You know how you instinctively hold your breath when trimming stuff? With these little crystals being such great thermometers it does make sense not to breathe at them...

Ref. freq. adjustment on my newest rig... If an FT-847 can be called new...

Living at 59 north has some weird twists to it. Like sunglasses while driving at 10 PM.

@AlanAtTek There be traffic all over... Qth:Sweden

Must be a CW contest going on…

@DJSnM @irnbru First time I heard of Irn Bru was when Marcus Brigstocke described it as being made out of "girders"...

Every year I’m grateful for Santa’s deliver of @irnbru to California

@DJSnM You crack me up! 😂

I describe the 28.5 degree plane change maneuver for IXPE as unusal, unique and even radical, but truthfully the thrust vector is normal.

@K3TripleR I have a tame electrician on retainer.

You have been warned...

@nascom1 Also, as I understand it at least, USB ranging (JPL developed i belive) was the primary mode of navigation. Inertial got all the glory but USB was how they actually got to lunar orbit. That ranging pseudo-random code arrangement they used was kind similar to how GPS does it.

@SA5JUS I hadn't, thanks for the pointer. These guys must have the patience of a Saint to reverse engineer this stuff. Part of me thinks that is so cool, another thinks what's the point..we've moved on. I like the first part of me better.😉

@nascom1 Have you seen this? youtube.com/watch?v=E4iUO0…

@nascom1 I think it’s an occupational thing. If you do it for a living it looses a bit of it’s magic. At least it does for me. Even though, I’m happy there are people out there that preserve this stuff. I’d hate to see the knowledge get lost in time.

@AlanAtTek Don't be so sure. You live in New Jersey. Princeton and Bell Labs are crawling with them :)

@SA5JUS This is definitely the first, and likely only Nobel Prize winner that I’m ever likely going to rub elbows with!

From today’s ARRL Hudson Div Awards Luncheon. That’s me with the ARRL CEO David Minster NA2AA, the Nobel Prize winning Dr. Joe Taylor K1JT, and 2021 Technical Achievement winner David DeCoons WO2X. I was honored with the Hudson division’s 2020 Technical Achievement award.

@AlanAtTek I will.

Hi everyone! How many of you will be joining the webinar tomorrow to learn about how to get the most out of your oscilloscope?

@nascom1 @dave_universetf We have a similar problem in ATC. In tech. ops. we have to understand RF theory and be able to splice coax, use a VNA and do hands on fault-finding. It's hard to find candidates that have that theoretical background, hands experience and that are willing to work ops.

@dave_universetf Sadly the problem is far simpler...nobody wants to leave. We have people with huge amounts of knowledge and experience who love a job that continuously changes and evolves. When I started 32 years ago I was told if I was still here after a year, I was here for life. It's true.

As a sad reflection of the average age in Canberra operations. The 500Kw transmitter on DSS14 has been repaired. The acronym "GSSR" or Goldstone Solar System Radar as its called can be nicely substituted for the Beatles song "Back in the USSR".."Back in the GSSR" aah.. ear worm!

@nascom1 @damienmiller S-band going out of style?

@SA5JUS @damienmiller After the refit last year we now have a new single 100Kw SBand that we use primarily for Voyager 2.

Currently commands are on their way from Canberra's DSS43 across the solar system towards Voyager 2 sitting in interstellar space. At a eye watering 75Kw output nothing about this transmitter can be called economic in its power consumption. Beam volts of 32Kv and at 6A= 200Kw

@nascom1 @damienmiller I read somwhere that you have two S-band TX on the 70 meter. One rated at 20 kW and the other at 400 kW. Is that still the case? If so, when is that used? Radar?

@damienmiller For S-Band its 100kw, X-Band 80Kw. We steer clear of the 100Kw as we have a 100Kw limit for civil aviation and don't want it wandering above.