Recently I found a twitter post from WA1GOV about a new service he offers (). If you send an APRS message with the content “ISS” to the callsign WA1GOV-10, you will receive the next ISS pass at your location as a message.
The only condition is that you are in the range of a TX-igate and that this TX-igate is aware of your position, so that it sends the message from the APRS-IS back to HF. I had some trouble with this. At the beginning I did not receive the ISS data, but I saw it at aprs.fi, so I sent a couple of more beacons and now I sucessfully received a message back. Beside the ISS there are also the following satellites available: AO-85,AO-91,AO-92,SO-50
Since a long time, I was trying to get my SDRPlay running with gqrx on Ubuntu. A while ago, I successfully compiled everything I needed, but this lesson took hours and after the next Ubuntu update, it did not work anymore. Now I found a solution that is much easier. I did a lot of other changes on my system in parallel, so I am not 100% sure that the following steps are enough to get it running, but it works now for me.
This is more a note to myself and a very short guide (without any comments or explaination) how to install golang on a Raspberry PI. Maybe it’s useful for somebody else, too.
APRS stations around Hamburg
In this article I will try to analyze the APRS infrastructure in the Hamburg area based on raw APRS messages received by 2m handheld connected via USB soundcard to a Raspberry Pi. On the Raspberry Pi, I run Dire Wolf
and I use Xastir
on my Laptop with Ubuntu to receive and visualize the data on a map.
Today, I want to try to use Node.js on a Raspberry PI to control the GPIO Pins. I will start with the “Hello World” of hardware projects: a blinking LED.
Whenever I want to install a Raspberry Pi, I don’t like to connect a keyboard and a monitor to setup SSH and WiFi. It’s much better to prepare the SD card on a normal PC and set up Wifi and SSH. Then you just need to put the SD card into the Raspberry PI and start it.
As I like photographing and hamradio I had the idea to combine both. Every day hams are sending APRS messages from all over the world, but all we see is a dot on a map. Isn’t that sad? Let’s show how it really looks where we do hamradio. Let’s show what’s behind the track on a map!
The idea is to take a photo and send a APRS beacon at the same place at the same time and post both on Twitter using the hashtag #aprsphoto.
I just started:
I am working with APRS a lot at the moment. I started a couple of months ago with almost no knowledge about this mode and now I have the feeling, I slowly understand it. Here are my 10 reasons, why APRS is a great mode!
Since a couple of weeks I am running a APRS RX-igate on a Raspberry PI with RTL-SDR dongle and pymultimonaprs. To show on the map that it’s a RX-only Igate it’s recommended to set the black diamond with a “R” overlay as a symbol. To do this you have to use “R” as table and “&” as a symbol.
Here is my configuration:
"comment": "PyMultimonAPRS iGate",
"text": "Raspberry PI - RX Igate",