5500A
Operator Manual
8-38
8-51. Edge Function Commands
TDPULSE
(IEEE-488, RS-232, Sequential)
Turn tunnel diode pulse drive on/off in EDGE mode.
Parameters: ON (or non-zero) or OFF (or zero)
Example: TDPULSE ON
Returns the tunnel diode pulse drive setting in EDGE mode.
Parameters: None
Response: 1 if ON, 0 if OFF.
8-52. Marker Function Commands
TMWAVE
(IEEE-488, RS-232, Sequential)
Selects the waveform for MARKER mode.
Parameters: SINE Sine wave (2 ns to 15 ns)
SPIKE Triangular/sawtooth pulse (15 ns to 5 s)
SQUARE Square wave (50% duty cycle) (4 ns to 5 s)
SQ20PCT Square wave (20% duty cycle) (85 ns to 5 s)
Example: TMWAVE SPIKE
TMWAVE?
(IEEE-488, RS-232, Sequential)
Returns the MARKER mode waveform setting.
Parameters: None
Response: <character> (Returns SINE, SPIKE, SQUARE, or SQ20PCT.)
8-53. Video Function Commands
VIDEOFMT
(IEEE-488, RS-232, Sequential)
Selects the format for VIDEO mode.
Parameters: NTSC, PAL, PALM (for PAL-M), or SECAM
Example: VIDEOFMT SECAM