Amateur Radio

By rbosaz, 31 December, 2023

You'll need the following:

  • DigiRig
  • USB C to USB A
  • USB B to USB A
  • Audio Cable (black, not green) to DIN Connector

Then plug together as follows:

  • Plug USB C into DigiRig and USB A into your computer. 
  • Plug audio cable into audio port of DigiRig and DIM plug into radio (orientation is crucial).
  • Plug USB B into radio and USB A into computer.
By rbosaz, 16 October, 2023

Installing into a venv (python virtualenv):

1. Install pip in current user profile (optional).

python3 -m pip install --user --upgrade pip

2. Ensure you are using Python 3.3 or greater. 

Note: For this exercise I recommend 3.11 or whatever the creator's GitHub states.

python3 -V
python -v

3. Create your venv, activate environment and confirm you are in the environment. 

python3 -m venv env 
source env/bin/activate
which python

After executing 'which python' you should see '.../env/bin/python' where ... is the full path to the environment.

4. Install aprsd within the environment created above.

python3 -m pip install aprsd

5. I created my 'aprsd.yml' in the directory above the 'env' directory using the following command.

aprsd sample-config > aprsd.yml

Using your favorite editor (mine is vim) edit the config file you just created. I read each setting and enabled most of them using default. Some parameters required me to get information from the web like: passkey and magicbug password. Once you're satisfied start the aprsd server with the -c flag and filename. Being that  I performed this in the environment above the env directory id did the following.

aprsd server -c aprsd.yml

Note: Do not close the command prompt window else you shutdown the server. If you want to shut down the aprsd server gracefully use ctrl+c keyboard key combination.

6. Install web client in venv where aprsd was installed above.

pip install gunicorn

7. Start the web client. I'm stuck here

gunicorn --bind "aprsd.wsgi:app"

8. To deactivate the venv.

By rbosaz, 29 April, 2023

Using the supplied LDG cable attached the red end (radio) in to the left most mic jack input on the back of the radio, then attach the black end of the cable (tuner) to the Radio port on the back of the tuner. 

If you want the tuner to control the radio then update the Tuner Select property to LAMP (Linear Amplifier) in the FT-891 deep settings. Now when you press the tune button on the tuner it will lower the power and send a CW carrier to tune the frequency.

If you don't have the cable to the tuner it will still try to auto tune when you transmit but it's sub-optimal. So you'll need to drop the radio's power down (below 35W, if you don't you'll ruin the tuner) and change the mode to CW by long pressing the BAND button. Then PTT and the tuner will perform a proper tune.

By rbosaz, 22 October, 2022


DVB-T+DAB+FM USB dongle (Realtek, RTL2838UHIDIR, SN: 00000001): A Generic RTL2832U OEM Rafael Micro R820T tuner.

On Ubuntu, I'm using the rtl-sdr package which contains the following command line utilities:

  • rtl_adsb: a simple ADS-B decoder for RTL2832 based DVB-T receivers
  • rtl_eeprom: an EEPROM programming tool for RTL2832 based DVB-T receivers
  • rtl_fm: a narrow band FM demodulator for RTL2832 based DVB-T receivers
  • rtl_sdr: an I/Q recorder for RTL2832 based DVB-T receivers
  • rtl_tcp: an I/Q spectrum server for RTL2832 based DVB-T receivers
  • rtl_test: a benchmark tool for RTL2832 based DVB-T receivers

Found this documentation at (rtl-sdr)


You can also use the GNU Radio Companion. I found these interesting links:




Some good Boston radio stations:

69.9 - Throwbacks, the Best New Hip Hop and R&B

94.5 - Boston's #1 For Hip Hop & Throwbacks

100.7 - Classic Rock

105.7 - Boston’s 80s & More

102.5 - Country

89.7 - WGBH Public Radio Boston’s Local NPR Station

92.9 - The Next Generation of Classic Rock



Started with this video

Using Pentoo on SD Card.  When you login start GUI by type startx and use defaults.

By rbosaz, 13 September, 2022

I've been having a hard time getting the Uniden SDS100 serial over USB to work with my Windows virtual machine, but finally figured it out.

My virtual machine setup

Host Machine

Using VirtualBox with Oracle VM VirtualBox Extension Pack installed. The first thing you'll want to do after installing the Oracle VM VirtualBox Extension Pack is to enable USB via the virtual machine's settings. I selected USB 3.0, but depending on your use case, you may have to try another option.