What is Adaptive Packet Assembly (APA)?
Adaptive Packet Assembly (APA) is an error control technique that is applied to modems in order to increase the line fault tolerance and to enable the transmission of divided data packets at short intervals. APA works with other modem error control techniques to improve the transmission quality of the modem.
Data packets typically share with increased line noise, reducing the time required to retransmit. However, when the lines are not as loud and the transmission is not affected, packets are transmitted as larger units, allowing for faster data transmission rates (DTR).