usually the eshail.batc.org.uk webmonitor is used to see the activity on the QO-100 wideband transponder.
I needed to see a similar picture, but from my own dish and LNB to compare it with the batc spectrum. And I want to
stream it into the Ethernet or Internet like batc is doing.
Using the hardware SDRplay RSPx I have written a web monitor including spectrum and waterfall.
The software runs under Linux. Since the capture rate is 10MS/s a PC is needed (but I had also some success to run it on an Odroid-N2 SBC).
Currently I have it running for testing on a desktop PC which is connected to an RSP1A SDR and a 120cm dish with a Megaset LNB.
It can be view here:
(for easy use, activate to "Autom:" checkbox and set the "average" slider according your preferences).
After some testing and debugging I will publish it via Github during the next week for general use.