SDRplay Community Forum

Ah... Yes, it's a lot clearer now having played around with that setting. And it also makes sense to use this setting to eliminate CTCSS hum on your receive audio. "Pure Data" still seems an odd way of describing a band-pass filer assigned to audio range cut-offs. Thank you for your replies! -Chris

I was monitoring a net last night on our local repeater and noticed hum on the repeater audio. My initial suspicion was that I was hearing the 103.5hz "sub-audible" CTCSS tone that is emitted on the repeater output. Digging around online, I found my suspicion to be correct. There is a great YouTube ...

Hi, tolot is correct in that you must edit the /boot/config.txt file. The following lines can be added/edited in the config.txt file: #trick the Pi into thinking that something is connected to the HDMI port (use if running headless) hdmi_force_hotplug=1 #force HDMI group 2 modes hdmi_group=2 #force ...