YB4IR/7 YB7NUS/P YB7KE/P Marabatuan Island Laut Kecil Islands

YB4IR, YB7NUS, YB7KE will be active from Marabatuan Island (IOTA OC-268), Laut Kecil Islands 21 - 25 May 2015 as YB4IR/7, YB7NUS/P, YB7KE/P.
They will operate on HF Bands.
QSL via YB4IR.