A Sun outage, Sun transit or Sun fade is an interruption in or distortion of geostationary satellite signals caused by interference from solar radiation. The effect is due to the Sun's radiation overwhelming the satellite signal.
In the northern hemisphere, sun outages occur before the March equinox (February, March) and after the September equinox (September and October), and in the southern hemisphere the outages occur after the March equinox and before the September equinox. At these times, the apparent path of the Sun across the sky takes it directly behind the line of sight between an Earth station and a satellite. The Sun radiates strongly across the entire spectrum, including the microwavefrequencies used to communicate with satellites (C-band, Ku band, and Ka band), so the Sun swamps the signal from the satellite. The effects of a Sun outage range from partial degradation (increase in the error rate) to total destruction of the signal. The effect sweeps from north to south from approximately 20 February to 20 April, and from south to north from approximately 20 August to 20 October, affecting any specific location for less than 12 minutes a day for a few consecutive days.
What is a sun outage?
A sun outage is an interruption in satellite signals caused by interference from solar radiation. The interference is caused when the sun is in direct line with a communication satellite and the sun's radiation overwhelms the satellite signal.
How long do they last?
Interruption in TV service due to sun outages can last up to several minutes a day.
How do they affect watching TV?
During this time, you may experience interference with picture quality and sound when watching television. Sun outages do not affect internet or phone service.
When do they occur?
This spring, sun outages are expected to occur between February 29 and March 8, 2016
This spring, sun outages are expected to occur between February 29 and March 8, 2016 during the following times:
| Date | Start | End |
| Monday, February 29, 2016 | 9:12 AM | 3:45 PM |
| Tuesday, March 1, 2016 | 8:37 AM | 4:49 PM |
| Wednesday, March 2, 2016 | 8:36 AM | 4:48 PM |
| Thursday, March 3, 2016 | 8:35 AM | 4:47 PM |
| Friday, March 4, 2016 | 8:34 AM | 4:46 PM |
| Saturday, March 5, 2016 | 8:34 AM | 4:46 PM |
| Sunday, March 6, 2016 | 8:35 AM | 4:46 PM |
| Monday, March 7, 2016 | 8:36 AM | 4:47 PM |
| Tuesday, March 8, 2016 | 4:34 PM | 4:49 PM |
