Extron electronic VTG 300R specifications Test PATTERNS, Video Output RATES, and Audio Signals

TEST PATTERNS, VIDEO OUTPUT RATES, AND AUDIO SIGNALS

VTG 300 TEST PATTERNS

32 x 24 Crosshatch

This crosshatch pattern can be used to set projector focus and geometry. For CRT projectors, this pattern is for examining and adjusting both static and dynamic convergence, so that the red, green, and blue video signals are aligned throughout the image.

32 x 18 Crosshatch

This crosshatch pattern is for use with 16:9 displays.

H Pattern

This pattern is used to check or evaluate video clamping stability, focus for projectors, and video pulse response, as well as to simulate text. The user can toggle between white-on-black and black-on-white.

SMPTE Color Bars (with PLUGE pattern)

For NTSC video equipment, the SMPTE color bars are used to set up tint and color, while the PLUGE video pattern is for adjusting brightness and contrast.

EBU Color Bars

The EBU color bars are primarily used to set up color for PAL video equipment.

Color Bars (8-color split)

This pattern is used for testing all of the video color channels and setting video drive levels. It is also used to check low frequency crosstalk between the red, green, and blue color channels.

32-level Split Grayscale

With two opposing rows of 32 stepped bars of gray between the lowest and highest levels, this pattern is used for setting and assessing grayscale tracking, and evaluating contrast linearity on displays.

Ramp

This is used to evaluate the performance of a display or video processor on the basis of its pixel bit depth capability. The pattern should appear to be smooth, with no contouring or stepping.

Alternating Pixels

This one pixel “on,” one pixel “off” pattern is used for assessing the performance of high resolution monitors and projectors, EMI testing for worst case radiation, and pixel clocking and pixel phasing adjustments on a digital display.

Multiburst

This pattern, consisting of sine wave bursts of increasing frequency, tests bandwidth performance for NTSC and PAL video.

Flat Field

This pattern is used to evaluate white field uniformity.

80% Window

A window at 80% (80 IRE) video level, surrounded by black, is used in fine tuning the color balance (or grayscale) of a display with the aid of a color analyzer. The gain (or drive) setting is fine tuned for each of the red, green, and/or blue color adjustments.

20% Window

A window at 20% (20 IRE) video level, surrounded by black, is used in fine tuning the color balance (or grayscale) of a display with the aid of a color analyzer. The bias (or offset) setting is fine tuned for each of the red, green, and/or blue color adjustments.

VTG 300 COMPUTER OUTPUT RATES

Rate Name		Resolution	H (kHz)	V (Hz)
	Computer Scan Rates
VGA1		640 x 480	31.5	60
VGA2		640 x 480	37.5	75
SVGA1		800 x 600	37.9	60
SVGA2		800 x 600	46.9	75
XGA1		1024 x 768	48.4	60
XGA2		1024 x 768	56.4	70
XGA3		1024 x 768	60.0	75
SXGA1		1280 x 1024	64.0	60
SXGA2		1280 x 1024	91.1	85
SXGA+		1400 x 1050	63.9	60
UXGA1		1600 x 1200	75.0	60
UXGA2		1600 x 1200	87.5	70
UXGA3		1600 x 1200	106.3	85
LCoS1		1360 x 1024	80.0	75
LCoS2		1365 x 1024	65.2	60
	Video Rates - NTSC or PAL
NTSC		720 x 480	15.745	60
NTSC (0 IRE)		720 x 480	15.745	60
PAL-I		720 x 576	15.6	50
PAL-B,G,H		720 x 576	15.6	50
PAL-N		720 x 576	15.6	50
		HDTV Scan Rates
480p		720 x 480	31.5	60
576p		720 x 576	31.5	50
720p		1280 x 720	45.0	60
1080i		1920 x 1080	33.75	60
1080i		1920 x 1080	28.12	50
1080p		1920 x 1080	67.5	60
1080p		1920 x 1080	56.2	50
1080p		1920 x 1080	27.0	48
16:9		High Resolution Scan Rates
16:9 HR		848 x 480	31.0	60
16:9 HR		852 x 480	31.8	60
16:9 HR		1280 x 768	45.1	56
16:9 HR		1280 x 768	48.0	60
16:9 HR		1360 x 765	47.7	60
16:9 HR		1366 x 768	47.8	60

	VTG 300 AUDIO SIGNAL FORMATS
Pink Noise	Random noise that has constant energy per octave. Used in loudspeaker testing and calibration.
White Noise	Random noise that has an equal energy distribution across all frequencies between 20 Hz and 20 kHz.
Sine Wave	Used in detecting distortion. The frequency can be set from 20 Hz to 20 kHz (in 1/3 octave steps).
Square Wave	Square wave signal with 50% duty cycle and no DC offset. The frequency can be set from 20 Hz to 5 kHz.
Swept Sine Wave	Varies the frequency of a sine wave signal continuously from 20 Hz to 20 kHz. Used to detect driver defects and mechanical sources of distortion.
Polarity test	Proprietary waveform used in verifying the polarity of audio cabling.

VTG 300 AUDIO LEVELS

Signal Format	Range (dBu)	Range (dBV)	Range (mV)
Pink Noise	-56 dBu to -8 dBu	-58 dBV to -10 dBV	1.25 mV to 316 mV
Polarity Test	-72 dBu to -18 dBu	-74 dBV to -20 dBV	0.20 mV to 100 mV
All other signal types	-72 dBu to +6 dBu	-74 dBV to +4 dBV	0.20 mV to 1.6 V

VTG 300 AUDIO FREQUENCIES (SINE WAVES, SQUARE WAVES, POLARITY TEST)

20 Hz	25 Hz	31.5 Hz	40 Hz
50 Hz	63 Hz	80 Hz	100 Hz
125 Hz	160 Hz	200 Hz	250 Hz
315 Hz	400 Hz	500 Hz	630 Hz
800 Hz	1 kHz	1.2 kHz	1.6 kHz
2 kHz	2.5 kHz	3.15 kHz	4 kHz
5 kHz	6.3 kHz	8 kHz	10 kHz
12.5 kHz	16 kHz	20 kHz