Radio broadcast

Honolulu
IJN officers of Kido Butai(Carriers strike group) were listening to broadcasting from Honolulu since 4 Dec 1941.

VOA

Inside	Outside

This leaflet propaganda tells VOA from Saipan. Frequency varied 850 to 1,100 kc/s. It broadcasted 6pm to midnight. It began on Dec 25th 1944.

OSS began to broadcast using VOA of Saipan on Apr 23rd 1945. The frequency was 870 kc/s. It was about 30 minutes from 4am. It continued till Aug 13th. It said, 'This is New Nation Broadcast.'

Otherwise NHK began jamming VOA from various staions on the day.

1. Sapporo(札幌中央放送局) 10kW
   
2. Muroran(室蘭)
   
3. Sendai(仙台中央放送局) 3kW
   
4. Nigata(新潟) 500W
   
5. Tokyo(東京中央放送局川口送信所) 10kW
   
6. Hamamatsu(浜松) 50W
   
7. Nagoya(名古屋中央放送局鳴海送信所) 10kW
   
8. Shingu(新宮) 50W
   
9. Osaka(大阪中央放送局千里送信所) 10kW
   
10. Hiroshima(広島中央放送局) 3kW
    
11. Kochi(高知) 500W
    
12. Fukuoka(福岡) 500W
    
13. Kumamoto(熊本中央放送局) 1kW
    
14. Miyazaki(宮崎) 500W
    
15. Nobeoka(延岡) 50W
    
16. Kagoshima(鹿児島) 50W
    
17. Hioki(日置) 1kW
    
18. Shibushi(志布志) 50W
    

I found the jamming stations distrubuted bias. Hokkaido is bigger than inculding Kyushu and Shikoku. But there were 2 and 7 stations in Hokkaido and Kyushu each. 5 of the 7 stations were located in an area that US was to occupy on Nov 1945.

Radio Tokyo
Radio Tokyo was broadcasting enemy music for allied soldiers. It broadcasted pops, 'Smoke gets in your eyes', 'My old flame', 'I don't want to set the world on fire' on 9 Mar 1945. And some crews of B-29 were listening to the music on the big Tokyo raid ironically. Allied soldiers called female DJs of Radio Tokyo Tokyo Rose.
Tokyo Rose

Crews of sneaking task forces of USN were listening to broadcasting from Tokyo before the first Tokyo raid in 1942.