Thank you @M0YNG.
Hello everyone - I am Ramakrishnan. My callsign is VU3RDD and I live in Bangalore, India. I am interested in homebrew electronics and I mostly operate HF/CW at the moment. I have inverted V antenna for 40 and 20m bands.
I do computer programming for a living and work on low level software, cryptography and network protocols..
I have another account https://octodon.social/@vu3rdd but i thought of separating the radio/electronics toots into a separate account.
Friends: A humble request. Please consider not to primarily require users to be running MS Windows when you write amateur radio software:
Has anyone tried this audio card HAT for raspberry pi?
Looks like a great way to get some baseband signals into the Pi.
Do you earn more than 32,400USD a year?
If you do, you are the 1%. In my latest article, I give examples of ballpark ecological accounting to determine how you can offset your negative impacts on the world: carbon emissions, animal cruelty, water scarcity, waste management, and loss of biodiversity.
We can change things.
Spent a bit of time this weekend looking at KA7EXM power meter QEX article. I recently discovered an unopened kit that I had ordered a few years ago, so that is going to be my next project.
I have also got some crystals on my way, so a G3UUR crystal frequency test setup is also due. It also needs a 1Hz resolution frequency counter, which I don't have.
@vu3rdd I'm relatively new to the hobby and as a programmer this shocked me. Also the proliferation of nonfree things like P25, DMR and System Fusion. Seems antithetical to the open, maker culture
The well-known author of EMRFD book shipped the CD with some very useful software, all binary programs. Someone wrote to him saying that an antivirus software was flagging one of them wrongly, so he took down that program instead of releasing the source code! Today, I was looking at an old paper on crystal filter design which referred to a software whose cost increased to $150 after a favourable review on QST. The author is long dead and with him, the software binaries too!
The service manuals of old professional equipment are truly amazing, the schematics are shown in three different abstraction levels, every single connection is shown, waveforms at 100 different test points are drawn, every single component is listed, with step-by-step test and calibration guidelines. You can almost remove everything from the board and put it back together with a service manual.
Something that today's consumers can only dream of...
I was looking at the ISRO youtube live link till 2.40AM or so, half asleep and then decided to check a few news websites to learn that the launch was called off.. Hope the next launch is during the day..
I am curious, how the launch window is decided. They say that the rest of the launch dates in July only have ~1 minute launch window but I don't quite understand what that means..
I think I am going to wake up tomorrow early morning to watch chadrayaan2 go up on its journey to the moon...
I am an amateur radio operator from Bangalore, India. My callsign is VU3RDD. I was licensed in 2002. I like HF and my favourite mode is CW.