Quantum-data 801GC Manuel d'utilisateur télécharger pdf (Page 261)

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HRAT Horizontal RATe

Classification: Format parameter setting

Command Syntax: HRAT <frequency in Hz>

Limits: <frequency in Hz> (floating point accepted)

typical min = 1000

typical max = 130000

Query Syntax: HRAT?

Query Response: <frequency in Hz> (floating point returned)

Description: The HRAT command sets the line frequency. Pixel rate is equal

to the product: HTOT times HRAT. Frame rate is equal to the

quotient: HRAT divided by VTOT. Field rate is equal to the

product: SCAN times the frame rate. The HRAT? query returns

the current horizontal frequency setting.

Other Required Cmds: The FMTU command instructs the generator to use the new

setting. The ALLU command updates hardware to the new setting

and redraws the test image.

Examples: HRAT 32768 // Set 32.768 kHz rate in

// buffer

FMTU // Update hardware to current

// buffer contents

HRAT 32.768E3 // Set a 32.768 kHz rate

FMTU // Update hardware to current

// buffer contents

HRES Horizontal RESolution

Classification: Format parameter setting

Command Syntax: HRES <pixels>

Limits: <pixels>

min = 16

max depends on VRES and model of generator

Query Syntax: HRES?

Query Response: <pixels>

Description: The HRES command establishes the number of active pixels per

line. The HRES? query returns the current setting of HRES.

Other Required Cmds: The ALLU command updates hardware to the new setting and

redraws the test image.

Example: HRES 480 // Set 480 active pixels line

// in buffer

ALLU // Configure hardware and redraw

// image

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Quantum-data 801GC Manuel d'utilisateur Page 261