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  5. FAQ on Technical Conformity Mark
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Most of the radio equipment in general use is affixed with the mark of technical regulations conformity certification (Technical Conformity Mark) for specified radio equipment.

Please be very careful when purchasing or using radio equipment that does not have the markaffixed as it is possible that it is unlicensed or illegal.

Mobile phone


  Q21 Is the Technical Conformity Mark also affixed to mobile phones?
 

A:

Yes, the Technical Conformity Mark is affixed to mobile phones. In many cases, it is displayed in the location where the battery is stored. Please check by removing the battery cover.

A radio station license is also needed for mobile phones. These licenses are obtained in bulk by mobile phone business operators.
  Q22 Does PHS (Personal Handy-phone System) also have the Technical Conformity Mark?
 

A:

Yes, the Technical Conformity Mark is also affixed to PHS (Personal Handy-phone System). In many cases, it is displayed in the location where the battery is stored. Please check by removing the battery cover. PHS (Personal Handy-phone System) can be used without a radio station license, as long as the Technical Conformity Mark is affixed.
  Q23 I am having trouble getting connections on my mobile phone and would like to attach relay equipment an antenna. What should I do?
 

A:

Installation of relay equipment for mobile phones by individuals is not approved. (Installation by individuals constitutes an infringement of the Radio Law, and is liable to prosecution and fines.)
If you are having problems with connections for your mobile phone, please consult with the mobile phone business operator.
  Q24 Products to make connections for mobile phones easier are for sale on the Internet. Is it OK to purchase such products?
 

A:

Installation of relay equipment for mobile phones by individuals is not approved. (Installation by individuals constitutes an infringement of the Radio Law, and is liable to prosecution and fines.)
If you are having problems with connections for your mobile phone, please consult with the mobile phone business operator.
  Q25 As I was having problems getting connected with my mobile phone, attached an antenna installed relay equipment. Is this illegal?
 

A:

If it is relay equipment that was installed following a contract with the mobile phone business operator, it is not illegal. (Please be careful as installation of relay equipment for mobile phones by individuals constitutes an infringement of the Radio Law, and is liable to prosecution and fines.)
  Q26 Even though I cannot get through on my mobile phones when I am outside, I sometimes can get connected when I am indoors. Is this not a problem?
 

A:

It is possible that the mobile phone business operator has put in place a service to enable indoor use of mobile phones, or that the signals get through due to special circumstances.

It is also possible that an illegal relay equipment of mobile phone has been installed.

For details, please make inquiries at your nearest Bureau of Telecommunications.

If you have questions or issues about the Technical Conformity Mark that are not covered by the above, please make inquiries at the "Q&A on Technical Conformity Mark" desk of your nearest Bureau of Telecommunications.
Also, explanations can be given to you concerning the radio equipment you own at the "Q&A on Technical Conformity Mark" desk of your nearest Bureau of Telecommunications.
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Copyright(C)Telecommunications Bureau of the Ministry of Internal Affairs and Communications All Rights Reserved.