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Color TV Signal Generator Audio Video Test Equipment - 1Vp-p/75Ω - Y, RY, BY
Product information:
AS305E color TV signal generator is a full-channel, multi-standard color TV signal generator. It uses an intermediate frequency vestigial sideband modulation and then frequency conversion radio frequency mode to ensure that the signal has consistent characteristics in the entire TV bandwidth, so it can be used as a standard-level TV signal source and a high-performance modulator. The channel, frequency, TV format, and output level of the signal source are all displayed on an LCD screen at the same time. Each video signal has independent key operation and instructions, so the operation and use are very convenient, and the display is intuitive. Audio Video Test Equipment
The signal generator Audio Video Test Equipment not only has video signal and radio frequency signal output (the output amplitude of video signal and radio frequency signal are both variable), but also has external video signal and audio signal input modulation function; color and brightness separation signal (S-VIDEO) can be added as needed , Video component signal (Y, RY, BY), synchronization, blanking pulse signal output. The signal generator is very suitable for scientific research institutions, schools, factories and other units.
Parameter:
| Video signal output Audio Video Test Equipment | |
| Output amplitude | ≥1.5Vp-p(0-1.5Vp-p adjustable )/75Ω |
| Polarity | Positive polarity |
| Blanking level | 0±0.2VDC |
| Synchronous signal ratio | 30% |
| External video signal input | |
| Input amplitude | 1Vp-p/75Ω(Modulation rate of about 82%) |
| Polarity | Positive polarity |
| Chrominance signal | |
| Chrominance carrier frequency | 4.433619 MHz PLA/B.D.G.H.I.K 3.579545 MHz NTSC/M |
| Chrominance phase error | Color sync + 3° Each color±5° |
| Internal audio signal | 1kHz±10% sine wave |
| External audio signal input | |
| External audio frequency range | 20Hz-15kHz |
| External audio input amplitude | 420mV/rms (The frequency deviation at 1kHz is about ±50 kHz) |
| Signal generator operating system | PAL/B.G., PAL/I, PAL/D.K, NTSC/M (Optional) |
| Video and audio carrier | |
| Video carrier frequency range | 45MHz～871.25MHz |
| Frequency error | ≤7×10－5 |
| Output amplitude | 50-110+10 -5 dBuV/75Ω |
| Video modulation mode | AM / negative |
| Audio carrier and video carrier spacing | 4.5 MHz NTSC/M 5.5 MHz PLA/B.G.H 6.0 MHz PLA/I. 6.5 MHz PLA/D.K |
| Video carrier to audio carrier ratio | 13±3dB |
| Out of band restraint | ≥ 50dB |
| Image signal | |
| Grayscale | Linear 8 level street ladder signal (from black to white) |
| Square | 11 horizontal bar × 15 vertical bar |
| Spot | Horizontal 15 points x vertical 11 points |
Center cross Audio Video Test Equipment | 3 bars of 1 center vertical line, 2 for the left border line. 3 bar 1 for the center line, 2 for the upper and lower border line. |
| Black and white grid | 16 horizontal grid × 12 vertical grid |
| Multiwave group | 0.8 to 5MHz single frequency signals of 8 groups |
| Half black and half white | The left half is black and the right half is white |
| Standard color | Range format: 100/0/75/0 PAL system 77/7.5/77/7.5 NTSC |
| Red field | Amplitude format: consistent with the same color |
| Green field | Amplitude format: consistent with the same color |
| Blue field | Amplitude format: consistent with the same color |
| White field | 100%White |
| Four vector | Y=50% |
| Ring | Y=100%, Radius 4.5 squares |
