Support
Details
MT-30C is the latest product of the well known Terra company. This high-quality VSB modulator works in B/G standard, within the whole TV frequency range (B/G: ch. 1-12, S1 - S38, 21-69), with A2 stereo sound.
A high output level of the modulator (77-92 dBuV) allows to create cascade connections of multiple modulators. Carrier frequency is PLL stabilized.
Specifications
Name | MT-30A | MT-30B | MT-30C | |
Code | R871731 | R871732 | R871733 | |
Input parameters | Video frequency range | 20 Hz - 6 MHz | ||
Video level | 1 V +/-3 dB / 75 ohm | |||
Audio frequency range | 20 Hz - 15 kHz | |||
Audio level | 775 mV / 600 ohm | |||
Output parameters | Level / impedance | 77 – 92 dBuV (adjustable) / 75 ohm | ||
Channel Frequency band | 1-69 (D/K) | E2-E69 (B/G) | E2-E69 | |
Carriers accuracy | +/- 20 kHz | |||
Audio subcarrier frequency | 6.5 MHz | 5.5 MHz | A2 stereo | |
Video carrier offset | +/-2.25 MHz max, at 0.25 MHz step | |||
Through loss | <2.0 dB | |||
RF loop bandwidth | 47-862 MHz | |||
RF loop freq. characteristic unevenness | +/-1 dB | |||
A/V ratio (switchable) | 12 / 16 dB | |||
Modulation factor | 75 +/-10 % | |||
Signal to noise ratio (weighted) | >= 55 dB | |||
II, III order intermodulation distortions | < 60 dB | |||
Side band attenuation on channel boundary | > 35 dB | |||
Audio preemphasis | 50 us | |||
Frequency deviation adjustment | -31% to +24% | +/-6 dB | ||
Video carrier instability | ||||
Power parameters and consumption | 230 V / 50 Hz 5.5 VA | |||
Supplying voltage | 198 to 250 VAC | |||
Operating temperature | -10 oC to +50 oC | |||
External dimensions / Weight | 180 x 87.5 x 50.5 mm / 0.65 kg |
CAUTION:
The modulator is designed for indoor use only. The installation must be made according to the EN50083-1 standard. NOTICE: The device is powered from ~230 V power line - risk of electric shock!