- What is the most popular amateur digital voice mode today?
- What should you invest in when thinking about digital voice?
- What are common DMR specific terms you need to know?
- How to program your DMR radio with just the basics?
Long time friend and fellow Overlook Mountain Amateur Radio Club member, Aaron KC2NDA has been keeping busy with his day job and still managed to find some time to design an interesting data acquisition device discussed for about the first 30 minutes of the latest Comrades in Farms episode on the Farmacy Seeds Network
His journey in learning about KiCad and circuit design was covered on CJ KD2IIN's YouTube channel over a two hour interview.
What is a SBC?
Aaron also got into discussing the evolution from moving from basic Arduino like hardware and coding, then into Raspberry Pi 4 plus the new Raspberry Pi Compute boards followed by the FPGA evolution in the next segment.
These are all known as SBC or single board computers. There is even a nice related news feed here on the HVDN website worth taking a look at too tucked under the "embedded computing" tab.
Some of what he talks about, especially when it comes to analyzing massive amounts of data will impact some of what makes locator.hvdn.org possible and some new features that will be rolling out soon that will make use of TinyML.
There is so much information in this two hour long interview, so feel free to give it a listen/view and share some comments and be sure to give it a thumbs up on CJ's channel
The Kenwood TS-50 was a great radio in its day and still holds its own against modern radios over 30 years later.
When Kenwood released this mobile 100W HF radio back in 1993, it was in the early days of modern computer aided transceiver or CAT evolution.
This article explains how to add USB based CAT control to a vintage Kenwood TS-50 and maybe squeeze some extra life out of this great radio when it comes to digital modes.
The bottom of the TS-50 has a small removable plastic disk that allows the user to access a 6 pin connector which the no longer available (and expensive) Kenwood IF-10D computer interface connected to along with the also expensive (and no longer available) Kenwood IF-232C serial converter.
The original Kenwood IF-232C accessory permitted the inverted TTL communications native on the TS-50 to work via standard RS-232 serial communications at a blazing 4800 baud which is more than fine for simple communications between a radio and computer.
While there are some other aftermarket solutions still available in 2020, there is a cheaper way.
For less than $20 in parts, you can add modern CAT control to your TS-50 for easier use of digital communication modes like PSK31, FT-8, FT-4, JS8CALL and so much more.
We will also not need to be removing that little plastic disk, so leave that alone.
To add modern USB CAT control to a Kenwood TS-50 you will need: