ATS100H (ATS 100 H) - Передатчик LARS VHF диапазона, предварительно настроенный на частоту 166МГц. Предназначен для передачи извещений о состоянии охраняемого объекта по радиоканалу на центральные станции LARS (DTRCI5000NR, DTRCI5000) в виде кодированного цифрового сообщения. Имеет 8 входов, работает на частотах 136-174 МГц, прямое подключение панелей NX.

[video & text: National Science Foundation]

"This video, that starts with a view of the top of Tower 4, was taken from the vantage point of an Arecibo Observatory drone, utilized for monitoring the condition of Tower 4 support cables. Four cables are seen in the center of this video. The top cable does not support the telescope platform, but instead supports the catwalk described in the narrative for the previous video. The three lower cables are, from left to right, M4-1, M4-2, and M4-3. Note that a number of individual wire strands of the M4-1 and M4-2 cables are noticeably broken at the beginning of this video. The M4-3 cable does not appear to have any broken wires at the beginning of this video. The first indication of the coming failure is the breaking of another M4-2 wire, accompanied by a puff of "smoke" and chips of paint flying away from the surface of the cable. Four seconds later the entire M4-2 cable appears to disintegrate. The failure of M4-2 is followed a fraction of a second later by the demise…

A WebSDR is a Software-Defined Radio receiver connected to the internet, allowing many listeners to listen and tune it simultaneously. SDR technology makes it possible that all listeners tune independently, and thus listen to different signals.