
278 Chapter 12
Real Time TDMA Formats
EDGE Framed Modulation
EDGE Framed Modulation
This example teaches you how to build framed real-time I/Q baseband generated EDGE
modulation for testing receiver designs. The procedures in this section build on each other and
are designed to be used sequentially.
Activating Framed Data Format
1. Press Preset.
2. Press
Mode > Real Time TDMA > EDGE > Data Format Pattern Framed.
Configuring the First Timeslot
1. Press Configure Timeslots > Timeslot Type > Custom.
2. Press
Configure Custom > Data > FIX4.
3. Press
1010 > Enter > Return > Return.
Configuring the Second Timeslot
1. Press Timeslot # > 1 > Enter.
2. Press
Configure Normal > TS > TSC1 > Return.
3. Press
Timeslot Off On to On > Return.
Generating the Baseband Signal
Press EDGE Off On to On.
This generates an EDGE signal with an active custom timeslot (#0) and an active normal
timeslot (#1). The signal generator may require several seconds to build the signal. During
this time, Baseband Reconfiguring appears on the display. After the reconfiguration is
complete, the display reads EDGE On and the EDGE, ENVLP, and I/Q annunciators appear. The
signal is now modulating the RF carrier.
The signal’s configuration data resides in volatile memory and is not recoverable after an
instrument preset, power cycle, or reconfigured signal generation.
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