JMD-Jamaican Dollar. Jamaica, Dollar. The Jamaican Dollar is the currency of Jamaica. Our currency rankings show that the most popular Jamaica Dollar exchange rate is the USD to JMD rate. The currency code for Dollars is JMD, and the currency symbol is J$.
Full Definition of JETSAM. 1. : the part of a ship, its equipment, or its cargo that is cast overboard to lighten the load in time of distress and that sinks or is washed ashore.
QAM, or Quadrature Amplitude Modulation, is the modulation scheme used in cable plants. Basically, QAM is how the modem encodes digital information to be sent over the RF interface of the modem. 64QAM and 256QAM are two very common modulation schemes used in the downstream channels for cable modem or digital cable plants.