Editing Voyager 1 (section)

==== Communication system ====
The radio [[communication system]] of ''Voyager 1'' was designed to be used up to and beyond the limits of the [[Solar System]]. It has a {{convert|3.7|m|adj=on|sp=us}} [[diameter]] [[Directional antenna|high-gain]] [[Cassegrain antenna]] to send and receive [[radio waves]] via the three [[NASA Deep Space Network|Deep Space Network]] stations on the Earth.<ref>{{Cite web |title=High Gain Antenna |url=https://voyager.jpl.nasa.gov/spacecraft/instruments_hga.html |url-status=live |archive-url=https://web.archive.org/web/20130921060751/http://voyager.jpl.nasa.gov/spacecraft/instruments_hga.html |archive-date=September 21, 2013 |access-date=August 18, 2013 |publisher=JPL}}</ref> The spacecraft normally transmits data to Earth over Deep Space Network Channel 18, using a frequency of either 2.3&nbsp;[[GHz]] or 8.4&nbsp;GHz, while signals from Earth to Voyager are transmitted at 2.1&nbsp;GHz.<ref>{{Cite web |last1=Ludwig |first1=Roger |last2=Taylor |first2=Jim |date=March 2002 |title=Voyager Telecommunications |url=https://descanso.jpl.nasa.gov/DPSummary/Descanso4--Voyager_new.pdf |url-status=live |archive-url=https://web.archive.org/web/20130215195832/http://descanso.jpl.nasa.gov/DPSummary/Descanso4--Voyager_new.pdf |archive-date=February 15, 2013 |access-date=September 16, 2013 |website=Descanso Design and Performance Summary Series |publisher=NASA/JPL}}</ref>

When ''Voyager 1'' is unable to communicate with the Earth, its digital [[Magnetic storage|tape]] recorder (DTR) can record about 67 kilobytes of data for later transmission.<ref>{{Cite web |title=NASA News Press Kit 77–136 |url=http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=9476.0;attach=591860 |url-status=live |archive-url=https://web.archive.org/web/20190529081627/https://forum.nasaspaceflight.com/index.php?action=dlattach;topic=9476.0;attach=591860 |archive-date=May 29, 2019 |access-date=December 15, 2014 |publisher=JPL/NASA}}</ref> {{As of|2023}}, signals from ''Voyager 1'' take more than 22 hours to reach Earth.<ref name="jet propulsion laboratory-2" />