Sök produkt



Skip Navigation Links.
Expand Husbil/VagnHusbil/Vagn
Expand MottagareMottagare
Expand ÖvervakningÖvervakning
Expand NätverkNätverk
Expand AntennAntenn
Expand GSM/2G 3G 4G 5GGSM/2G 3G 4G 5G
Expand ParabolerParaboler
Expand MontagematerialMontagematerial
Expand LnbLnb
Expand KontakterKontakter
Expand KablageKablage
Expand MultiswitcharMultiswitchar
Expand SwitcharSwitchar
Expand VerktygVerktyg
Collapse TillbehörTillbehör
Expand HuvudcentralHuvudcentral
Expand Spel & NöjeSpel & Nöje
hälsa och vård
Raspberry Pi


Hem » Modulatorer » TV Modulator TERRA MT-47 (ch. 1-12 & 21-69)


TV Modulator TERRA MT-47 (ch. 1-12 & 21-69)

Artikelnummer: 14-R871747
  • Produktinformation

    Double sideband modulator MT-47 is controlled by a microprocessor - the choice of output channel is performed with two buttons (after opening the top cover). The channel number or any changeable parameter is displayed on the LED display and stored in non-volatile memory. Use of quartz-stabilized PLL practically eliminates frequency error. There is a possibility to protect the modulator against unauthorized change of the preset parameters.
    The modulators can be connected in cascade. Their RF signals can be combined with terrestrial TV channels (it requires to match the levels of terrestrial TV signals with the RF output levels of the modulators, as well as to ensure adequate frequency spacing).
    The MT-47 modulator is monophonic. The signals from the AUDIO L and AUDIO R inputs are mixed.
    In comparison to the previous series, these Terra modulators can provide compatibility with many versions of the PAL system.
    Adjustment options:
    - video carrier frequency,
    - RF output level,
    - audio subcarrier frequency,
    - A/V ratio,
    - standard deviation (+/-50 kHz) of audio carrier for input level 150-775 mV
    The modulators can be successfully used both in home antenna installations as well as in small-sized MATV systems. Meticulous quality control in Terra company makes these devices virtually failure-free.
  • Mer information

    Name MT-47 MT-57
    Code R871747 R871757
    Video input frequency range 20 Hz ... 6 MHz
    level / impedance 1 V  / 75 Ω
    Audio input  frequency range 20 Hz ... 15 kHz
    level adjustment 0 ... 7 dB -6 ... 6 dB (#)
    level / impedance /deviation  775 mV RMS
    10 kΩ / 50 kHz
    2 x 775 mV RMS
     10 kΩ / 50 kHz
    RF output  typical level / impedance 85 dBμV / 75 Ω
    level adjustment 0 ... -20 dB
    PAL version (#) B/G/D/K/H/I/L/M/N/Australia
    frequency range (#) 45 ... 84. 170 ... 300. 470 ... 862 MHz
    Carrier frequency error +/- 50 kHz
    Audio subcarrier frequency (#) 4.5 / 5.5 / 6.0 / 6.5 MHz B/G/Australia stereo A2
    (sec. sound sub.  5.742 MHz)
    Fine tuning range of video carrier frequency (#) max. +/- 2.25 MHz. 0.25 MHz step
    RF loop-through loss 2.5 dB
    RF loop-through frequency range 5 ... 862 MHz
    A/V ratio (#) -12/16 dB
    Amplitude modulation depth (typical) 81%
    SNR (weighted) >/= 55 dB
    Power / Power consumption 230 VAC 50 Hz /
    3 W
    230 VAC 50 Hz /
     4 W
    Operating temperature range -10oC ... 50oC 0oC ... 50oC
    Dimensions / Weight 133x73x39 mm / 0.36 kg


Antal varor:0
Summa:0 kr
Full QWERTY tangentbord på baksidan
Megasat Satmeter HD Combo 7
Cloud WiFi Camera aka "The minion Stuart"
Handhållen spelkonsol med 500 inbyggda spel