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Modulators

Double-sideband TV modulators MT29, MT29С

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Manufacturer:
Type of modulator:

 

Benefits:

  • Agile TV modulators with DSB modulation;
  • Non-volatile memory;
  • Phase-locked-loop quartz-crystal control over frequencies carrying video and acoustical signals;
  • Volume control;
  • Transmission-line summation over  HF signal;
  • One modulator covers the whole TV range;
  • A built-in test-generator;
  • Connectors:
  • V/A – jack of type 3хRCA;
  • HF – jack of type F.

Distinctions:

MT29

standards: B, G, D, K, H, I, L, M, N

MT29С

standards: B, G, стерео A2

Technical specifications:

TYPE

MT29

MT29C

Video input

frequency band

20 Hz - 6 MHz

level /impedance

1 V ± 1 dB / 75 Ω

Audio input

frequency band

20 Hz - 15 kHz

level / impedance/ deviation *

775 mV RMS / 10 kΩ / 50 Hz

HF output

level (typical)/impedance

85 dBµV / 75Ω

range of adjustment

0 ÷ -15 dB

Output channels/ frequency band pr

21-69(G,H, I,K)/470–862 MHz
14 - 78 (M, N)/470 - 862 MHz
6-SR18 (D)/174-294 MHz
E5-S20 (B)/174-300 MHz
1-3 (D)/48.5-84MHz
E2-E4 (B)/47-68 MHz

Frequency settability

± 20 kHz

Frequency of audio subcarrier pr

5.5 MHz, 6.0 MHz, 6.5 MHz

A2 stereo

Smooth control over frequency of video carrier pr

± 2.25 MHz with max. interval of 0.25 MHz

Transmission-line loss of summation over HF signal

< 2.0 dB

Frequency band for summation of HF signal

47 - 862 MHz

Non-uniformity of amplitude-frequency response in video band

± 1 dB

A / Vratio, switchable pr

12 /16 dB

Amplitude modulation depth, typical

75%

Signal/noise ratio (weighed)

≥ 55 dB

Intermodulation distortion of II, III orders

<-60 dB

Power demand

230 V / 50 Hz / 2 VA

Range of operating temperatures

-10 0C÷ +50 °C

Overall dimensions /Weight (in pack)

128 × 120  54 mm / 0.5 kg

* - it is possible to establish standard deviation ± 50 KHz of the audio carrier at the input level of 150 mV to 775 mV;
pr - to be switched over programmatically.