gr-fcdproplus software package provides Funcube Dongle Pro Plus controller for GNU Radio, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gr-fcdproplus
gr-fcdproplus is installed in your system.
Make ensure the gr-fcdproplus package were installed using the commands given below,
$ sudo dpkg-query -l | grep gr-fcdproplus *
You will get with gr-fcdproplus package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Science |
| Package | gr-fcdproplus |
| Version | 3.7.25.4b6464b-2+b1 |
| Description | Funcube Dongle Pro Plus controller for GNU Radio |
| Sub Section | Science |