How does SpaceX transmit the video feed from the first and second stage cameras back to Earth?

There appear to be at least 1 reasonably high-res (500+ px vertical res) live video stream being transmitted from both the SpaceX F9 first and upper stages all the way up into LEO throughout their launches.

What system of transmission is being used? Which band is used? Where is the transmitter? Is there an external antenna? Where is/are the receiver(s) located?

It seems to transmit mostly uninterrupted video from launch and halfway around the Earth. How do they do it?

• You can hear the acquisition and loss of telemetry signals from the rocket by the ground stations during the livestream e.g. on the launch on 2020/1/29, I heard "AOS (Acquisition Of Signal) Bermuda" and a "LOS (Loss Of Signal) Cape" callouts as it came into and out of range of those ground stations. Jan 29, 2020 at 16:49
• Cool! Who runs/owns those, and what frequencies are they? How do the spacecraft reach them? Jan 29, 2020 at 17:30
• Looks like a joint NASA/Orbital Sciences (now Orbital ATK, which launches out of NASA Wallops)/SpaceX facility according to info here. The information specifically says "SpaceX use the site to maintain data communications after the go out of range of KSC so the video downlink can show pictures of the Second stage primary burn." Jan 29, 2020 at 18:46
• Thanks for the lead, @astrosnapper. I just found this post from 2018 about the renovation, which is neat: nasa.gov/feature/… Jan 29, 2020 at 21:54