GW Instek AFG-3000 Series - Manual (Page 99)

MODULATION
99
4. Use the selector keys and
scroll wheel or number pad
to enter the Stop/Start
frequency.
5. Press F1~F5 to select the
Start/Stop frequency units.
~
Range Sweep Range 100μHz~80MHz(3081)
100μHz~50MHz(3051)
(Sine/Square)
100μHz~1MHz (Triangle)
Start - Default 100Hz
Stop - Default 1kHz
Note
To sweep from low to high frequencies, set the
start frequency less than the stop frequency.
To sweep from high to low frequencies, set the
start frequency greater than the stop frequency.
When marker is off, the SYNC signal is a square
wave with a duty cycle of 50%. At the start of the
sweep, the SYNC signal is at a TTL low level that
rises to a TTL high level at the frequency midpoint.
The frequency of the SYNC signal is equal to the
sweep time.
When marker is on, at the start of the sweep, the
SYNC signal is at a TTL high level that drops to a
TTL low level at the marker. The SYNC signal is
output from the mark output terminal.