Partial Reply from Information and Communications Council concerning “Technical Requirements for Solid State Ship Radar”

1. Background

　Magnetron (vacuum tube amplifiers) have traditionally been used by ships for radar, but in recent years there has been progress in the development of solid state ship radar (solid state amplifiers), which in comparison with previous forms of radar benefit from longer service life, reduction of unnecessary emissions, stable frequencies, and so on.

　On the other hand, since it is difficult to achieve large output with ship radar using solid state components, it is necessary to elongate the pulse width so as to increase the amount of energy transmitted in order to obtain functions equal to those of traditional ship radar (maximum detection distance, etc.). However, depending on the circumstances of use, elongation of pulse width can pose a risk of harmful interference affecting the radar of other ships.

　In view of such circumstances, deliberation has advanced with regards to “technical requirements for solid state ship radar” towards the implementation of ship radar using solid state elements, and a partial reply was received from the Information and Communications Council on February 17, 2012.

2. Schedule

The Ministry of Internal Affairs and Communications (MIC) will service the relevant regulations based on this partial reply.

Related reports and documents

Commencement of Deliberation on “Technical Requirements for Solid State Ship Radar” (Deliberation commences at Information and Communications Council) (October 28, 2011)

Appeal for Opinions on Draft Report from Aviation and Maritime Radio Communication Committee (Technical Requirements for Solid State Ship Radar) (December 14, 2011)

Results from Appeal for Opinions on Draft Report from Aviation and Maritime Radio Communication Committee (Technical Requirements for Solid State Ship Radar) (January 31, 2012)