5.Panel Operation
52
For OSK, the sync signal is referenced to the keyed frequency and the sync
signal is a square wave with a 50% duty cycle. When the internal crystal
oscillator starts, the sync signal is TTL high.
For N-cycle bursts, the sync signal is TTL high at the beginning of the burst.
At the end of the specified number of cycles, the sync signal is TTL low (if the
waveform has an associated start phase, it may not be a zero crossing). For
an infinite count pulse train, the sync signal is the same as the sync signal of
the continuous waveform.
For external gated bursts, the sync signal follows its gate signal. Note: This
signal does not become TTL low until the end of the last cycle (if the
waveform has an associated starting phase, it may not be a zero crossing).
Load
For either of
Out1
and
Out2
connector at the front panel, the generator has a 50Ω
fixed serial output impendence. If the actual load does not match the specified value,
the voltage level displayed would not match the voltage level of the component
under test. This function is used to match the displayed voltage with the expected
one.
The step to set the CH1 or CH2 load value is as follows:
(1)
Press the
Utility
function key, press the
CH1/2 Set
softkey.
(2)
Press the
CH1Load
or
CH2Load
softkey,
press it again to select
High Z
or
* ohm
("*" represents a value, the default is 50Ω).
(3)
To change the load value, after selecting
* ohm
, turn the
knob
to adjust the
value on the current cursor, use the
/
direction key to move cursor left
or right, or use the
numeric keypad
to enter the parameter and then select unit.
The load range is 1ohm to 10kohm.
Warning:
Setup the correct load for right application.
I/O Setup
The generator is configured with USB and LAN interfaces and supports users to
configure the interface settings for remote communication. Press
Utility
→
I/O Setup
to open the I/O setting menu, and set the USB device type or the LAN
interface setting for remote communication.
USB Device Type
The user can set the communication protocol type of the USB Device interface at the
rear panel.
(1)
Press the front panel
Utility
function key, press the
I/O Setup
softkey.
(2)
Press the
USBDEV
softkey to toggle between
PC
and
USBTMC
.
PC:
This is the internal communication protocol. Select this option when
