Choice: On | Off
Default: Off
Double-click or use the drop-down menu to enable or disable the dirty transmitter test. When this setting is set to On, the Dirty Transmitter Impairments Setup Table appears.
Turning on dirty transmitter will automatically disable 'Packet ' node and use the truncated PN9 sequence as payload.
Choice: On | Off
Default: Off
Double-click or use the drop-down menu to select whether to omit the poll period in the dirty transmitter test.
In Bluetooth systems, master and slave devices exchange information by alternating packet transmission in TDD mode. The poll period is used to simulate the time period when the other Bluetooth device would be transmitting its packets. Enabling allows for verification setups where the Bluetooth TDD mode can be ignored; instead the signal source will create Bluetooth packets for every time slot. It is beneficial when comparing results against normal TDD mode to determine the effects of LO switching, or for comparing other state machine transitions. In characterizing receiver performance, or for high-speed verifications.
The figure below shows the timing diagram for each of the three packet types. The poll period is 625 microseconds long, during which time no data is transmitted. The is transmitted before each packet type, unless omit period is enabled. The amount of poll period(s) for each packet type is as follows:
DH1 = 1 poll period
DH2 = 3 poll periods
DH3 = 5 poll periods
Figure 1. Timing diagram for test set for each packet type
For Bluetooth Specification Version 1.1 only Basic data rate can be selected.
Choice: DH1 | DH3 | DH5
Default: DH1
Double-click or use the drop-down menu to select the packet type used for the dirty transmitter test. The three different packet types that can be chosen for the Bluetooth Specification Version 1.1 are DH1, DH3, and DH5. The payload for all packet types is a PN9 data sequence. The PN9 data sequence is truncated after the maximum amount of PN9 data has been placed in the packet. The payload length of each packet type is as follows:
DH1 = 27 bytes
DH3 = 183 bytes
DH5 = 339 bytes
Each impairment set consists of two to four packets. The sequence bit in the header field is toggled for the second and fourth packet to indicate to the Bluetooth device that the incoming packet is not a re-transmitted packet.
Use the button 
to open a 
drop-down menu
for selecting the pre-defined dirty transmitter profile. Clicking a configuration
replaces the current configuration in the setup table.
Use the button 
to add a new dirty transmitter set. When a new impairment set is added,
The set is inserted in the table..
Use the button 
to delete the selected impairment set. The set to be deleted is indicated
by the 
in the first column.
Use the button 
to add a new impairment set that has the same configuration as the currently
selected one (indicated by the in the first column).
Use the and
arrows 
to reposition the currently selected set (indicated by the
in the first column).
This cell displays the impairment set index number.
Use this cell to enable or disable a specified impairment set in dirty transmitter test.
Range: -100 to 100kHz
Use this cell to set the static offset to the carrier frequency.
Range: 0.28 to 0.4
Use this cell to set the modulation index of GFSK.
Range: -50 to 50pp
Use this cell to set the shift of standard symbol rate.
