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Octo Analog Modulator NTSC M-N for CATV

Octo Analog Modulator NTSC M-N for CATV

VHF/UHF modulator Custom analogue channel generation

Home audio/video modulator capable of generating any analogue channel on the MATV band.
Ref. 5858
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EAN13: 8424450139806
SKU
5858
Highlights
  • Equipped with an LCD display to show the current channel
  • Fully automated manufacturing
  • Equipped with gain regulation to generate an equilibrium between the level of the selected channel and the remaining channels in the installation
  • Equipped with switch-mode power supply unit that optimizes energy efficiency

Main features
  • Design based on the use of new generation micro-components, which allowed reducing both device size and power consumption
  • The RF loop is compatible with SMATV installations and allows current circulation to power an LNB
  • Allows the adjustment of the difference in levels between carriers by regulating the audio level
  • Produces a test signal to facilitate the tuning of the generated channel

Modulator
Standard PAL B/G
Band S (S01-S14, S19)
BIII (Ch. 5-12)
Hyperband (S20-S29)
VHF: E, F, G (74, 75, 76)
UHF (Ch. 21-69)
Output level (typ.) dBμV 90
Regul. range dB >15
Video Vpp 1 (s/75ohm)
Audio Hz 50 - 15000
Loop through
Band MHz 5-2400
Through losses dB < 2
DC bypass mA 300 max.
General
Power supply V~ 196 - 264
Consumption W 2,5
Operating temp. ºC -5 ... +45

Modulators do not only generate the desired channel, but also another kind of signal called spurious (traces from the local oscillator and upper sideband). Depending on the specific band, all these signals have an impact on the calculation of the maximum output voltage: their presence means they have to be taken into account as signals that are going to be amplified.
Receivers equipped with an internal modulator are not currently available in the market. To implement the above mentioned installation, the DTT receiver has to be linked to an A/V modulator.