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Transmitting audio / video over fiber

Agile double-sideband TV modulators, series Cabrio MT41, MT47, MT57

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Manufacturer:
Type of modulator:

   

Benefits:

  • Agile TV modulators with DSB modulation;
  • LED display and button-type control  over a built-in microprocessor;
  • Non-volatile memory;
  • Phase-locked-loop quartz-crystal control over frequencies carrying video and acoustical signals;
  • Mouldedcase in a plastic jacket;.
  • A built-in power supply;
  • Volume control, control over  HF output level;
  • Interlocking against an unauthorized alteration of a channel;
  • Transmission-line summation over HF signal;
  • Connectors:

                V/A - jack of type RCA
                HF - jack of type F

Distinctions:

MT41
standards: G/H/I/L/K/M/N/Au (UHF band)

MT47
standards: B/G/D/K/H/I/L/M/N/Au (UHF and HF bands)
MT57
standards:: B/G/Au/стереоА2, D/K/H/I/L/M/N/моно (UHF and HF bands)

 Technical specifications:

TYPE

MT41

MT47

MT57

Video input

frequency band

20 Hz - 6 MHz

level /impedance

1 V ± 1 dB /75 Ω

Audio input

frequency band

20 Hz - 15 MHz

range of adjustment

0 ÷ 7 dB

±6 dB  with interval of 2 dB pr

level /impedance

775 mV RMS/10 KΩ/50 KHz *

2х775 mV RMS/10 KΩ /50 KHz *

2х775 mV RMS/10 KΩ /50 KHz **

HF output

level /impedance

90 dB µV/75 Ω

85 dB µV /75 Ω

85±3 dB µV /75 Ω

range of adjustment

0 ÷ -20 dB

output channelspr

G/H/I/K/L/M/N/Australia

B/G/D/K/H/I/L/M/N/Australia

B/G/Australia

frequency band pr

470-862 MHz

45-84 MHz , 170-230 MHz, 470-862 MHz

Frequency of audio subcarrierpr

4.5 MHz, 5.5 MHz, 6.0 MHz, 6,5 MHz

stereo А2***

Frequency adjustment  to video carrierpr

± 2.25 MHz max. with interval of 0.25 MHz

Transmission-line loss of summation over HF Terr/SA

1.5 dB

1.5 dB /2.5 dB

Frequency band of summation over HF signal

5-860 MHz

5-2150 MHz

Transfer of DC through HF I/O circuit

-

0,3 А

Non-uniformity of amplitude-frequency response in video band

± 1 dB

Change in A / Vprratio

12 / 16 dB

Amplitude modulation depth

81%

S/N ratio (weighed)

≥ 55 dB

Power demand

230 V / 50 Hz / 3,5 W

230 V / 50 Hz / 4W

Operating temperature range

-10 °C…+50 °C

Overall dimensions

133 × 63 × 39 mm

133 × 73 × 39 mm

Weight (in pack)

0.36 kg

* - it is possible to establish standard deviation ± 50 KHz of the  audio carrier at the input level of 340 mV to 775 mV;

 ** - it is possible to establish standard deviation ± 50 KHz of the  audio carrier at the input level of 388 mV to 1545 mV at the both audio inputs;

*** - second frequency of the audio subcarrier 5,742 MHz  - B/G/Au/стерео A2;

pr. – able to be switched over programmatically.