RPi4 – GPS & RTC Coming soon!
There are many other Hams that are doing a whole lot more than I am with the Raspberry Pi 4B w/ 4GB memory… Here are links to a few of them whom I am fairly certain will be pursuing this part of the Ham Radio Hobby for the long term:
OH8STN – Julian whose radio interests in off-grid communications and portable off-grid battery and solar power parallel some of my own interests/goals. He is actively pursuing Digital Communications, Portable Power, Raspberry Pi, Field Radio Operation and Antennas. The fact that he resides in Finland gives his videos a refreshing “flavor” I particularly enjoy and have followed his Youtube channel for a little over 4 years now:
KM4ACK – Jason who is incredibly active on YouTube these days and has over 2,500 subscribers to his channel as I type. His recent series of 3 videos on “Raspberry Pi Build For Ham Radio” are highly recommended, particularly if you are just getting started with the Raspberry Pi 4 v/s Ham Radio.
DL1GKK – Karl-Heinz Krawczyk of Freiburg, Germany. Be sure to check out his web pages starting with “Setup Raspberry Pi for Ham-Radio“.
Karl is an active pilot, so his Youtube adventures are following that field, but his, (recently updated), web pages are hard to beat.
A couple of projects they have all done for taking their Raspberry Pi’s out for Portable Operations is to add GPS and in the case of a few more dedicated Hams, a backup RTC (Real Time Clock). The Rasperry Pi’s do not come with RTC built in. This technology is necessary to have accurate time set on your RPi, for things like FT-8, JS-8Call and so forth.
73, dave/W6TUX
Note: For GPS I will be using a fairly inexpensive VK-172 GPS USB dongle purchased from Amazon:
For a RTC, I will be using the DS3231 High Precision RTC Real Time Clock Module, also purchased from Amazon, (my link goes to 5 of them for < $11, but you can find fewer):
Even though it might sound like an expensive proposition, wanted to show via those links that it is not expensive at all. dave