Comparing Space Station Pass in VU3ZNG Open WebRX and My CP22E VHF Antenna

I tried to compare the performance of VU3ZNG Open WebRX and My CP22E VHF Antenna in a pass of International Space Station in my region with about 77 degrees maximum elevation. Initially I added the URL of VU3ZNG Open WebRX in OBS (Open Broadcaster Software), which is a free and open source software for video recording and live streaming. I had used OBS software earlier for testing live streaming of VU2VWN net on YouTube successfully. Tested out recording a couple of times to make sure that it will give a continuous video recording. That is because I will have to do Doppler tuning in my IC 2730 full duplex dual bander radio manually while I try to hear the Space Station using my CP22E VHF antenna mounted on a piece of 3m long one inch CPVC pipe on my first floor terrace.

Waited for the pass observing the display in mobile phone of the Argentinian Amsat Satellite pass prediction page and recording the audio from the radio using another mobile phone. A few minutes into the pass I could hear VU2MZT calling and replied him. He received my reply the second time. Later in the pass I heard VU3BGK calling and replied him as well. Here is the curated pass recording, removing periods during which the satellite signals were not received, from my radio using CP22E VHF antenna:

A short demo of how to setup browser recording in OBS software is shown in this video clip. This recording was taken soon after the pass and you can see the error message due to WebSocket closing unexpectedly.