Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The system responds to the sinusoid signal peak (time 0). The red color (
) indicates minimal observed delay; the blue color (
) indicates jitter. Galaxy Note running Android 4.0.1, 60 Hz AMOLED screen, 
, 
; Nexus 7 running Android 4.1.1, 60 Hz IPS LCD screen, 
, 
; MacbookPro, LCD screen (60 Hz), 
, 
.
