Features | | Front Panel Control, Easy To Operate High Output Level, Low Spurious Adjacent Channel Capability PLL Synthesized Channel Control With SAW Filter for Accurate Side Band Response and High Adjacent Rejection Spurious Harmonics 60dB down Low Out-Of Band Noise for Multiple Modulator Installation Video Modulation And Audio Deviation Level Adjustable Overmodulation Indicator Sound Carrier Level Adjustable Field Defeatable Audio Pre-emphasis for BTSC Stereo / Mono Baseband Inputs High VSB Attenuation Meets F.C.C Offset and Accuracy Requirement Built-in Power Supply for Easy Installation 19” EIA Rack Mountable | |
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| Specifications | | | RF | | OutputFrequency Range | 45 ~ 860 MHz | | NTSC : CH 2~4, 7~13, A-1~A-5, A~XXX, 87~135. | | PAL-B/G : CH E2~E12, S1~S41, X~Z+2, 21~69 (UHF). | | PAL-D/K : CH DS1~DS56, Z1~Z42, DS13~DS56. | Output Level | 60dBmV Typical | OutputLevel Range | 20dB continuously Adjustable | Spurious Harmonics | ≧ 60dB below Video Carrier | Video / Audio Carrier Ratio | -9 ~ -30dB continuously Adjustable | Frequency Accuracy / | ± 5KHz Standard Channels, ± 3KHz | Stability | FCC 21006 Offsets | RF Output Return Loss | 16dB Min. | | | | | IF | | Output Level | 28dBmV (Video Carrier) | Video IF Carrier Frequency | NTSC : 45.75 MHz | | PAL-B/G : 38.9 MHz | | PAL-D/K : 38 MHz | Audio IF Carrier Frequency | NTSC : 41.25 MHz | | PAL-B/G : 33.4 MHz | | PAL-D/K : 31.5 MHz | Output Return Loss | 16dB | Input Return Loss | 12dB | | | | VIDEO | | Input Level | 1.0Vp-p for 87.5% Mod. | Input Return Loss | 18dB | Video S / N Ratio | 60dB | Differential Gain | 0.2dB for 87.5% Mod. | Differential Phase | 1° for 87.5% Mod. | Overmodulation LED | Set @ 87.5%, Adjustable to 90% Typical | Indicator | | | | | | AUDIO | | Input Impedance | 10K Ω Unbalanced | Input Level | 140mVp-p for ± 25KHz Dev. | Audio Frequency | NTSC : 4.5MHz ± 1KHz above Video | | PAL-B/G: 5.5MHz ± 1KHz above Video | | PAL-D/K: 6.5MHz ± 1KHz above Video | Overmodulation LED | 25KHz ± 2KHz | Indicator | | Pre-emphasis | NTSC : 75μs | | PAL-B/G: 50μs | | PAL-D/K: 50μs | Audio Frequency Response | ± 1dB | | | | | GENERAL | | Power Requirement | 220V AC / 50Hz or 110V AC/60Hz | | 90 ~ 260V AC switching 50/60Hz (optional). | TemperatureRange | 0~50 ℃ | Rear Panel Connectors | RCA Type : Audio In | | F-Type : Video In , RF Out, IF In, IF Out. | Real Size of the unit | 482 (W) x 283 (D) x 44.5 (H) mm | Measurement | 537 (W) x 325 (D) x 85 (H) mm | Packing | 1 Set / Inner Box, Gross weight: 2.73Kg | | 5 Sets / Carton / 14.65 Kgs / 545 (W) x 355 (D) x 458 (H) mm | | | | |
Bộ điều chế AV - RF : dùng để chuyển đổi tín hiệu Video/Audio của Camera, đầu thu kỹ thuật số... sang tín hiệu RF.
Được dùng để trộn tín hiệu Video của Camera, đầu thu kỹ thuật số vào tín hiệu truyền hình cáp......
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