(1) pip install boto3
(2) edit"package_prefix" "s3_url" "access_key_id" "secret_access_key" "s3_bucket"

./config.ini 
./Client/Frame/B/config.ini 
./Client/Packet/B/config.ini

Format _<Package name(NOT EDIT IT!!!)>
e.g. "package_prefix = Japan" or "package_prefix = Harbin"
e.g. "package_prefix = Japan_B" or "package_prefix = Harbin_B"
e.g. "package_prefix = Japan_B" or "package_prefix = Harbin_B"

(1) cd DSLWP-VLBI
(2) sudo python frontend_dslwp_rx_uhd_gpsdo.py
(3) python index_frame.py or python index_packet.py