Native macOS support - introducing k8
Posted: Sat Jan 19, 2019 5:19 pm
Dear All,
After a fair bit of development time, I'm now at a stage where you might find this application of some use. Download: https://www.dropbox.com/s/qvx38an66o24l ... 0.zip?dl=0
More info (from k8 Help):-
k8
The k8 application is an *experimental* software defined radio for macOS, supporting the SDRplay RSP device, at a sampling rate of 250kHz and an IF bandwidth of 200kHz for this release.
The DSP code is originally from CuteSDR by Moe Wheatley, with minor modifications for macOS. My grateful thanks to Moe for his documentation, easy to follow code base, and open source licence.
The UI is a mix of Apple's Cocoa and modern OpenGL. Apple Core Audio is also used.
k8 has been developed and tested on macOS High Sierra v10.13.6, together with a first generation grey RSP device. k8 should install on macOS 10.10 and up, however only v10.13.6 has been tested.
Matthew Walker 19 January 2019
Usage Hints
Connect an RSP device before running k8. Hotplug does not work, and will probably cause a crash.
Pressing the play/pause button starts and stops the spectrum display and audio. The fast forward and rewind buttons are used to nudge the tuning by the current step size, which can be changed using the step button.
Enter an RSP device centre frequency of your choice in the top toolbar. Tuning within the 250kHz fixed bandwidth is by using the mouse (left click hold), or track pad, to move the red filter rectangle across the displayed spectrum. The same technique may be used to adjust the centre frequency, but the mouse pointer should be outside of the filter rectangle. You can also double click on a signal to tune to it.
You can adjust the filter bandwidth by using the mouse (right click hold), or track pad, and dragging left or right. Note that each demodulation mode has individual max and min limits.
k8 Release Notes
v0.1 Alpha
- initial release. Matthew Walker 19 January 2019
Regards,
Matt
After a fair bit of development time, I'm now at a stage where you might find this application of some use. Download: https://www.dropbox.com/s/qvx38an66o24l ... 0.zip?dl=0
More info (from k8 Help):-
k8
The k8 application is an *experimental* software defined radio for macOS, supporting the SDRplay RSP device, at a sampling rate of 250kHz and an IF bandwidth of 200kHz for this release.
The DSP code is originally from CuteSDR by Moe Wheatley, with minor modifications for macOS. My grateful thanks to Moe for his documentation, easy to follow code base, and open source licence.
The UI is a mix of Apple's Cocoa and modern OpenGL. Apple Core Audio is also used.
k8 has been developed and tested on macOS High Sierra v10.13.6, together with a first generation grey RSP device. k8 should install on macOS 10.10 and up, however only v10.13.6 has been tested.
Matthew Walker 19 January 2019
Usage Hints
Connect an RSP device before running k8. Hotplug does not work, and will probably cause a crash.
Pressing the play/pause button starts and stops the spectrum display and audio. The fast forward and rewind buttons are used to nudge the tuning by the current step size, which can be changed using the step button.
Enter an RSP device centre frequency of your choice in the top toolbar. Tuning within the 250kHz fixed bandwidth is by using the mouse (left click hold), or track pad, to move the red filter rectangle across the displayed spectrum. The same technique may be used to adjust the centre frequency, but the mouse pointer should be outside of the filter rectangle. You can also double click on a signal to tune to it.
You can adjust the filter bandwidth by using the mouse (right click hold), or track pad, and dragging left or right. Note that each demodulation mode has individual max and min limits.
k8 Release Notes
v0.1 Alpha
- initial release. Matthew Walker 19 January 2019
Regards,
Matt