Real Time

Carrier (EGPRS2-A Symbol bit output)

The Symbol Bit Output carrier generates GSM/EDGE symbols for DigRf solutions stored in 8-bit format with no IQ waveform data. This carrier is active only when 16800/16900 logic analyzers, which includes N5343A DigRF solution, are the selected hardware.

The symbol bit output carrier is added automatically by turning on the symbol bit ouput parameter in the Waveform Setup node. No other carrier can be added to the waveform. To delete the carrier, turn the symbol bit output to Off to return to the default waveform setup.

State

The operating state is set to On when the symbol bit ouput parameter in the Waveform Setup node is On.

Configuration

Select a timeslot configuration from the Closeddrop-down menu.

GSM All Timeslots Normal

sets timeslots 0 to 7 as normal GSM bursts.

EDGE All Timeslots Normal

sets timeslots 0 to 7 as normal EDGE bursts.

GSM 1 Timeslot Normal

sets timeslot 0 as a normal GSM burst (turned on) and timeslots 1 to 7 as custom GSM bursts (turned off).

EDGE 1 Timeslot Normal

sets timeslot 0 as a normal EDGE burst (turned on) and timeslots 1 to 7 as custom EDGE bursts (turned off).

GSM/EDGE Mixed All Timeslots Normal

GSM and EDGE Normal Bursts are mixed; alternating GMSK and 8PSK timeslots.

16QAM All Timeslots Normal

sets timeslots 0 to 7 as normal 16QAM bursts.

32QAM All Timeslots Normal  

sets timeslots 0 to 7 as normal 32QAM bursts.

16QAM 1 Timeslot Normal

sets timeslots 0 as a normal 16QAM burst with timeslots 1 to 7 turned off.

32QAM 1 Timeslot Normal

sets timeslots 0 as a normal 32QAM burst with timeslots 1 to 7 turned off.

GSM/EDGE/16QAM/32QAM Mixed

All Timeslots Normal

sets timeslots 0 and 4 as normal GSM bursts, timeslots 1 and 5 as normal EDGE bursts, timeslots 2 and 6 as normal 16QAM bursts and timeslots 3 and 7 as normal 32QAM bursts.

Number of Frames

Range: 1 to 511

Default: 13

Enter the number of frames for the selected carrier.

Symbol Length

The software sets the symbol length based on the number of frames and the modulation type. You cannot edit the value in this cell.

Symbol Rate

View the GSM/EDGE symbol rate. This is a fixed value, shown for reference; you cannot edit the value in this cell.

Timeslot Timing Mode

Default: 157 symbols x 2 timeslots + 156 symbols x 6 timeslots

The software sets the timeslot timing mode; timeslots 0 and 4 contain 157 symbols and the remaining timeslots contain 156 symbols.