Glossary
MT8852B Operation Manual PN: 13000-00205 Rev. N B-5
Payload (single payload mode only)
Select from PRBS9, 11110000, or 10101010. Not available in standard mode as configured
automatically from other test conditions.
Payload pkt count
This setting allows the user to specify whether the count of the number of packets is based on
the transmitted or received values. The settings are detailed below.
Transmitted: The measurement is based on the number of transmitted bits. Due to lost
packets, this setting may result in failure to comply exactly with the
Bluetooth test specification that requires that the test should be conducted
for at least 1.6 million bits.
Received: The measurement is based on the number of bits actually received. This
setting will force the MT8852B to continue testing until 1.6 million bits
have been measured.
Test control (single payload mode only)
See “Test type”.
Test Tx Power
This is the output power used to transmit packets for the sensitivity and maximum input
measurements. Management packets are always sent at the script power level.
Test type
This setting is used to switch between “Loopback” and “Tx mode”.
In Loopback mode, the MT8852B sends a packet to the EUT. The EUT loops back the packet
at baseband level and retransmits exactly the same payload data to the MT8852B.
In Tx mode, the EUT is configured to send a fully formed packet to the MT8852B each time it
receives a Poll packet.
Threshold bit count
This setting is used to define the number of bits in the first stage pass/fail decision. If a pass
is registered, the test stops. If a fail is registered, the test continues with a greater number of
bits being measured. See “Total test bit count”.
Toggle payload
Select "Toggle Payload" and select either "Continuous" or "Once" as detailed below.
Continuous:This is the default setting in which, to comply with the RF test specification, the
payload is changed after each packet measured.
Once: This setting reduces the time required to complete the test. The payload is
changed only once per measurement stage. The payload is changed after the
selected number of packets has been measured with the first payload and the
selected number of packets is then measured with the second payload.
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