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Table Operator of CDMA in Indonesia Operator Trade Mark Frequency Telkom Telkom Flexi 800 Mhz and 1900 MHz Indosat Star One 800 Mhz and 1900 MHz Bakrie Telecom Esia 800 MHz Mobisel -- 450 MHz Wireless Indonesia -- 2.1 GHz Source: Data Consult
You are to send a one (Mark) by putting all your transmitter power at the Mark frequency and a zero (Space) by similarly putting all your transmitter power at the Space frequency.