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MT8850A / MT8852A Bluetooth Test Set Using the Script Menu
Multi-Slot Sensitivity Test (Standard Mode)
For a multi slot sensitivity measurement the MT8850A/MT8852A transmits the longest
supported packet type as reported by the EUT during link set up with a pseudo random
payload (PRBS 9) to the EUT at a minimum power level. If the dirty parameters are
enabled then every 20 mS the MT8850A/MT8852A changes the transmitter parameters as
specified in the dirty transmitter table for this test. The EUT loops back the received data
and a bit error rate (BER) calculation and frame error rate (FER) calculation is performed
by the MT8850A/MT8852A test set. This test is performed with hopping off.
Measurements are made at each of the frequencies selected (LOW, MEDIUM and HIGH).
The LOW, MEDIUM and HIGH frequencies relate to the default frequencies specified in
the Bluetooth RF test specification. The MT8850A/MT8852A allows all the frequencies to
be changed. This is the test method described in the Bluetooth RF Test Specification for a
multi slot sensitivity test with hopping off.
The MT8850A/MT8852A can also carry out this test with hopping on.
1. Choose “Multi sensitivity” from the Script menu.
2. Press the
key to select or deselect this test from the script routine.
If a test is selected, the box will be filled in. If not selected the box will be hollow.
3. Press the
[Setup] soft key.
The Multi sensitivity test conditions screens are displayed.
This screen lets you enter the number of packets to send and set the TX power.
4. Choose “Number of packets”.
5. Enter the number of packets using the keypad.
6. Choose “Test TX power”.
7. Enter the value required using the keypad.
8. Choose “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 count is based on the number of transmitted packets. 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 packets.
Received: The count is based on the number of packets actually received. This
setting will force the MT8850A/MT8852A to continue testing until 1.6
million packets have actually been measured.
8-26 13000-000109
Testing in Standard Script Mode June 2003