Bulacan Radio :
This CW marker was recorded in 1987 by Andy Stumpf
no pictures of QSLs or other info available
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Callsigns:
DZO
Frequencies Voice:
4381
6513
8740
8740.6
8776
13134
13149
13175.2
13197
17245.3
17254
22602.2
22702
Frequencies Morse Telegraphy:
478
500
4290
6435
8580.5
12869.5
17129
17160
Frequencies Radioteletype:
8427.5
16808
Systems used:
SITOR