Choshi Radio :

 

from the files of Andy Stumpf (1987): JCS working in telegraphy, with SVA nearby

 

nice QSL card, showing the antenna farm (Frank Schüttig, 1976)
different view of the antennas on this QSL card (rb, 1982)

 

------------------------------------------------------------

 

Callsigns:
JCS
JCT
JCU
JDC
JMA

 

Frequencies Morse Telegraphy:
418.5
446
500
512
4225
4349
6467
6479
6485
8479
8647.5
8653
8653.6
8686
12687
12826.5
12878
13054
16998.5
17043.2
17112.6
17166.5
18795
22463
22636.5
22669.5

 

Frequencies Radioteletype:
4211
6317.5
8421.5
12581
16810
22379.5

 

Systems used:
SITOR