The O utline of Proposed Amendment to M inisterial O rdinance  
 
1 Item 
Partial  amendment of Regulations for Radio Equipment  
 
2 Amendment to ministerial ordinance  
Regulations for Radio Equipment  
 3  Reason s for amendment  
Needs of high- definition transmission and long -range transmission by wireless robot  
equipment are increasing  because t he robots are expected to be useful in various 
scenes . Responding  to these needs, current regulation related  to radio equipment will 
amended  to add the channels and arrange the t echnical regulations  of the WIRELESS 
SYSTEM for the new use by robots . 
 
4 Outline of the amendment  
Technical requirements of radio equipment  
Item  
Name  WIRELESS SYSTEM for robots  
Usage  Wireless system mainly for  transmitting  the images  from robots, or for 
monitoring or control ling by users . 
Frequency band  【169MHz band 】 
169.0 50MHz ~169.3975MHz  and 169.8075MHz ~170.000MHz  
【2.4GHz band】  
2483.5MHz ~2494MHz  
・5MHz  system：2486MHz  and 2491MHz  
・10MHz system：2489MHz  
【5.7GHz band】  
5650MHz ~5755MHz  
・5MHz  system：21 frequencies of 5 MHz channel spacing from 
5652.5MHz  to 5752.5MHz  
・10MHz  system：8 frequencies of 10MHz channel spacing from 
5655MHz  to 5725MHz , 5740MHz  and 5750MHz  
・20MHz  system：4 frequencies of 20MHz channel spacing from 
5660MHz  to 5720MHz  and 5745MHz   
Communication 
Systems  Unidirectional , Broadcast, Simplex and Duplex  
Tolerance of 
OBW 【169MHz  band】 
100kHz, 200kHz, 300kHz  
【2.4GHz  band】  
・5MHz  system：4.5MHz  
・10MHz system ：9MHz  
【5.7GHz  band】  
・5MHz  system：4.5MHz  
・10MHz  system：9MHz  
・20MHz  system：19.7MHz  
Allowable 
deviation of 
frequency 【169MHz  band】 
±3.0×10-6 
【2.4GHz  band】  
±50×10-6 
【5.7GHz  band】  
±20×10-6 
Antenna Power  【169MHz  band】 
less than 1W (EIRP:  less than 3.25W)  
【2.4GHz  band】  
less than 1W (EIRP:  less than 4W)  
【5.7GHz  band】  
less than 1W (EIRP:  less than 4W) 
Allowable 
deviation  of 
Antenna Power  【169MHz  band】 
-50 to +20 %  
【2.4GHz  band】  
-80 to +20%  
【5.7GHz  band】  
-50 to + 50%  
Spurious  【169MHz  band】 
Out of band region：100µ W 
Spurious region ：50 µW 
【2.4GHz  band】  
・5MHz  system  
Less than 2478.5MHz  and from 2498.5MHz  to 2500MHz ：20µW  
From 2478.5MHz  to 2481MHz  and from 2496MHz  to 
2498.5MHz ：300µW  
From 2481MH z to 2483.25MHz  and from 2493.75MHz  to 
2496MHz ：2mW  
From 2500MHz  to 2510MHz ：10µW  
More than 2510MHz ：1µ W 
・10MHz  system  
Less than 2473.5MHz  and from 2500MHz  to 2510MHz ：10µW  
From 2473.5MHz  to 2478.5MHz  and from 2498.5MHz  to 
2500MHz ：15 0µW  
From 2478.5MHz  to 2483MHz  and from 2494.5MHz  to 
2498.5MHz ：1mW  
More than 2510MHz ：1µ W 
【5.7GHz  band】  
・5MHz  system  
Less than 5590MHz  and more than 5815MHz ：0.63μW  
From 5590MHz  to 5630MH z and from 5775MHz  to 5815MHz ：
3µW  
From 5630MHz  to 5640MHz  and from 5765MHz  to 5775MHz ：
6.3µW  
・10MHz  system and 20MHz  system  
Less than 5590MHz  and more than 5815MHz ：0.63μW  
From 5590MHz  to 5630MHz  and from 5775MHz  to 5815MHz ：
3µW  
 
Leakage power 
to the next 
channel  【169MHz  band】 
OBW is less than 100kHz：Less than 45dBc within the ±  50kHz 
region of 100kHz separation  from the 
carrier frequency  
OBW is from 100kHz  to 200kHz ：Less than 45dBc within the ±  
100kHz region of 200kHz 
separation  from the carrier 
frequency  
OBW is from 200kHz to 300kHz ：Less than 45dBc within the ±  
150kHz region of 200kHz 
separation  from the carrier 
frequency  
【2.4GHz band】  
No requirements  
【5.7GHz  band】  
Less than 25dBc (or 40dBc) within the ±  F3MHz region of F1MHz 
(or F2MHz) separation  from the carrier frequency  
SYSTEM  F1 F2 F3 
20MHz  system  20 40 9.5 
10MH z system  10 20 4.5 
5MH z syst em 5 10 2.25 
 
Transmission 
Antenna Gain  【169MHz  band】 
less than 5.12dB i 
【2.4GHz  band】  
less than 6dBi 
【5.7GHz  band】  
less than 6dBi 
Leak radiation 
from receiver 
circuit  【169MHz  band】 
4nW  
【2.4GHz  band】  
Less than 1GHz ：4nW  
More than 1GHz：20nW  
【5.7GHz  band】  
Less than 1GHz ：4nW  
More than 1GHz：20nW   
 
5 Proposed dat e of entry into force  
August , 2016