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| Maximum AV 1022M PAL B/G A2 stereo modulator |
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| Product id: 7680 |
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| PRODUCT DESCRIPTION |
| Maximum AV 1022 M an Agile Adjacent Modulator module is made with proprietary SAW filter that achieves the true VSB response and IF modulation signal processing. The spurious harmonics is less than -55 dB, and with outside channel filter, the spurious harmonic could be less than -70 dB. Both video and audio carries are PLL controlled to ensure accuracy and stability. RF amplification circuit realizes low non-linear distortion and high output level. It has the features of last channel memory and RF output level: max 100 dBμV; it also has the feature of high audio and video linearity. |
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| FEATURES |
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48 MHz to 870 MHz Agile Adjacent Modulation Output |
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PAL, NTST, SEACAM TV system Factory Optional |
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Mono, Stereo, Dual Audio mode selectable |
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High 100dBu V RF output level |
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Two PLL Synthesized Channel control |
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Programmed full band by MCU |
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Low spurious harmonic less than -60dB |
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Built-in High-grade SAW VSB filter assure ultimate performance |
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Video Pre-correction circuit for low DP, DG and C/L Delay |
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| TECHNICAL SPECIFICATIONS |
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| Output frequency |
48,25 ~ 860,25 MHz adjustable |
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| Frequency adjust step |
1 MHz |
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| Output level |
Max. 100 dBµV |
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| Output level attenuation |
0 ~ -18 dB (adjustable) |
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| Output impedance |
75 Ω |
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| TV system |
PAL, NTSC, SECAM factory optional |
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| Picture carrier accuracy |
≤ ± 5 KHz (VHF); ≤ 10 KHz (UHF) |
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| Spurious/harmonic reject |
≥ 55 dBc |
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| AV carrier ratio |
5,5 MHz: 12 dB; 5,742 MHz: 16 dB |
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| RF |
Output return loss ≥ 12 dB (VHF); ≥ 10 dB (UHF) |
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| Video |
Input level: 1,0 Vp-p @ 87,5 % modulation |
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C/L delay: ≤ 45 ns |
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S/N ratio: ≥ 45 dB |
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Difference gain: ≤ 5 % |
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Difference phase: ≤ 5° |
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K2T: ≤ 4 % |
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Frequency response: ≤ 2 dB |
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| Audio |
Input level: 0 dBu @ ± 50 KHz dev. |
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S/N ratio: ≥ 55 dB |
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Frequency response: ± 1,5 dB |
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Harmonic disortion ratio: ≤ 1 % |
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Audio de-emphasis: 50 µs |
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