Amateur radio Net logging solution. Frontend
Posted on February 10, 2023
(Last modified on February 12, 2023)
| 3 minutes
| Vladimir
Frontend. Passive mode Cost was the main requirement for the solution. Static web site is used to provide placeholder during off Net hours since it doesn’t have any purpose other than handling the Net. Amazon S3 static web site allows to handle any amount of traffic and provide millisecond replies for static data. It also makes convenient to handle switchover between active and passive solutions using AWS native toolset.
One of the downsides is that S3 hosted website can only handle http traffic.
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Amateur radio Net logging solution
Posted on December 28, 2022
(Last modified on February 12, 2023)
| 3 minutes
| Vladimir
Project description The goal of the project is to provide cheap and convenient solution to handle HAM Nets. Solution is built using AWS cloud services but can be ported to any other major cloud service provider with minimal changes. It consists of four main components:
Scheduler Frontend. Login/status page Docker container to automate check-ins for keyups during the Net Backend. Net control station interface Data flow diagram:
Scheduler Scheduler (based on AWS Lambda) is handling enabling/disabling procedure for the frontend.
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Homemade GPS for Uniden scanner
Posted on July 13, 2022
(Last modified on February 12, 2023)
| 2 minutes
| Vladimir
Recently I’ve got another Uniden scanner. This time it’s Uniden BCD536HP.
Scanner has been mounted into the car. So, the very next question was: how to attach GPS module to avoid entering zip codes while traveling between the states.
Uniden branded GPS module might not be a good choice. I’ve found following issues:
cost. Around 120$ additional power plug too many wires and modules Ended up tinkering with GPS modules that I have.
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Brandmeister Talk Group status on E-Ink display
Posted on May 27, 2022
(Last modified on February 12, 2023)
| 4 minutes
| Vladimir
1. Problem description If you are interested in Brandmeister monitoring. Like Talk Group of your interest. You might end up using some kind of view to see activity log while you were away. Pi-Star has its own Last Heard view. Which has its own pros and cons. One of the most critical for me is: it will show only latest call if the same callsign was doing several or had a conversation.
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Free compute from Oracle Cloud
Posted on May 23, 2022
(Last modified on February 12, 2023)
| 1 minutes
| Vladimir
Oracle Cloud came up with interesting “forever free” proposal.
As a result, you will get ARM instance with up to 24GB RAM. Should be good to run minor workloads like containers. Not a fan of OCI but getting it for free instead of paying 5-7$ a month? Can’t resist.
Pros:
instance has decent performance most of the opensource software will work on ARM platform can server as software VPN hub for your needs (external IP included) Cons:
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Nextion display WiFi extender
Posted on March 23, 2020
(Last modified on February 12, 2023)
| 7 minutes
| Vladimir
The idea of the project is to provide the ability to place your Nextion display and hotspot in different locations in your house. Since UART (Universal Asynchronous Receiver/Transmitter) protocol is used for communication between the hotspot and display, it becomes easier to experiment with all kinds of options.
There are many controllers available today with UART interface onboard. Some of them can even emulate virtual COM ports when they are connected via USB.
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Using the BrandMeister API
Posted on December 1, 2019
(Last modified on February 12, 2023)
| 9 minutes
| Vladimir
Here is my approach to using talkgroups and my AnyTone radio on BrandMeister, as well as using the BrandMeister SelfCare account to check the status of static and auto-static talkgroups right in the browser. There’s also some commands that can be used in any Linux Terminal, and they also should work in Windows Subsystem for Linux or even a router shell.
Basic setup The role and function of the hotspot Using the BrandMeister API Checking current talkgroup’s status in a browser Running commands in Terminal 1.
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