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Report No. JSH006110476-001 

Page 28 of 69 

 
 
 

8.1 Requirements for input immunity to RF voltages (in differential mode) of the VHF band II part of 
sound receivers and of satellite sound receivers 

8.1.1 Test result 

8.1.2 Operating environment 

 
Temperature:                   22      

°C  

Relative Humidity:          43       %  
 

8.1.3 Test set-up 

Sound  receivers with a VHF band II part shall meet the sound criterion of subclause 6.1.1 of 

the standard. They were be tested at a tuned frequency fn and subjected to an unwanted signal of 
frequency ff and level fn as specified in Table 3 and 4 of the standard. Receivers with mono/stereo 
facility was be tested in stereo mode. 

 

8.1.4 Test protocol  

FMmode 
Recorded data for test of input immunity from unwanted signals outside the VHF band II range 
 
Below 

 

 

 

 

 

Report No. JSH006110476-001 

Page 29 of 69 

 
Above 

 

 
Recorded data for test of input immunity from unwanted signals inside the VHF band II range 

 

 

 

 

Report No. JSH006110476-001 

Page 30 of 69 

8.2 Requirements for input immunity to RF voltages ( in differential mode) of television receivers and 
video tape equipment (including satellite television receivers) (S1, S1a) 

8.2.1 Test result 

8.2.2 Operating environment 

 
Temperature:                       23  

°C  

Relative Humidity:               34  %  
 

8.2.3 Test set-up 

 
 

Television receivers and video tape equipment with built-in television broadcast receiving 

facility in the RF recording mode shall be tested at a tuned television channel N and subjected to an 
unwanted signal in channel M, level nf, and of the following types: 
 Unwanted 

signal 

types: 

 
 

A:  an unwanted signal at the picture carrier frequency of the relevant channel M 

 

B: two unmodulated signals each at the level as given in the table, one at the relevant picture  
carrier frequency +0.5MHz and the other at the picture carrier frequency –0.5MHz. 

 

C: a modulated signal at the relevant sound carrier frequency, 1kHz FM at 30kHz deviation 

 

C shall be applied to receivers for countries in which moni-sound television signals of the  
systems B and G can be received. 

 

For television receivers for countries in which also two-sound-channel-television-signals of  
the systems B and G with two frequency modulated sound with two frequency modulated  
sound carriers can be received. 

 
 

 

C1: a modulated signal at the relevant frequency of the first sound carrier, 1kHz FM  

at 30 kHz deviation, and  

 

 

C2: a modulated signal at the relevant frequency of the second sound carrier, 1kHz  

FM at 30kHz deviation. 

C1 and C2 are applied simultaneously. 
 
 

D: a modulated signal at the relevant picture carrier frequency, 1kHz AM at 80% depth; 

 

E: a modulated signal 1kHz AM at 80% depth. 

 

8.2.4 Test protocol  

 
 

 
 
 
 
 
 
 
 
 

 

 

Report No. JSH006110476-001 

Page 31 of 69 

8.3 Requirements for immunity to RF voltages ( in common mode) (S2b)

 

8.3.1 Test result 

8.3.2 Operating environment 

 
Temperature:                         23 

°C  

Relative Humidity:                 34%  
 

8.3.3 Test set-up 

 
 
 

The requirements for receivers,(including car radios and AM receivers), multifunction 

equipment and video tape equipment concerning the immunity to RF voltages in common model are 
restricted to the antenna terminals and to the frequency range form 26MHz to 30MHz. 
 

8.3.4 Test protocol 

 
Limits of immunity to RF voltages of antenna terminals of receivers and multifunction equipment