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KWL Broadcast is Indonesian manufacturer of FM and TV broadcasting equipment. Currently, we are covering four main areas :

  • FM transmitters
  • STL (Studio Transmiter Link)
  • TV transmitters
  • Transmitting antennas and accessories

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news  PRODUCTS
  Micro Wave Link (TV)



• General, The MicroWave Link (MVL) is designed to convey TV program material from a studio site to a transmitter site. This equipment may also be used to provide high-quality program transmission in intercity relay service.

• MPEG-2 Digital Video and audio compatibility. The Video and audio channels are fully compatible with the digital Video / Audio codecs MPEG-2

• 1 Video and 2 Audio. The MVL microwave links series is designed to carry 1 video and 2 high-quality 15 kHz audio programs.

• Outdoor RF converters System. The RF Up-Converters (TX-site) and Down-Converters (RX-site) can be fitted into waterproof boxes suitable to be mounted at the rear of parabolic antennas with direct connection to the microwave feeder or can be fitted into indoor unit suitable for standard 19” rack mounting with Waveguide rectangular output connector.

• Cable interconnection. The outdoor RF units are connected with the IF modulators (TX-Site) and IF demodulators (RX-Site) with low power standard coaxial cables (50-ohm).

• Synthesized RF channels. The RF frequency channels (1.3Ghz - 8.9Ghz – depends on models or up on request) are easy to change with a 100 KHz steps digital PLL. No tuning is required within 200 MHz range.

• Full monitoring. A front panel multimeter (LCD Display-optional on request) complete with alarm leds allows to check the audio and video levels, RF output power, RF received level, PLL lock and the IF-Mute status.

• Meets or exceeds all the international standards for safety
and electrical specifications.


  • Transmitter Sites Data Specifications:


  • 1. MVL-T/I Indoor IF Modulator (TX) :

    • IF standard frequency : 750 χ 950 MHz synthesized
    • IF output level : + 5 dBm ± 0.5 dB (50 ohms)
    • IF+ 24 VDC output connector : N-type female
    • IF standard group delay : (IF ± 8 MHz) ± 1.5 ns
    • BB amplitude frequency response : 5 Hz χ 9.1 MHz within 1 dB
    • Video amplitude frequency response : 5 Hz χ 5 MHz within 0.5 dB
    • Group delay in video band : 5 Hz χ 5 MHz within 20 ns
    • Differential gain : +/- 2%
    • Differential phase : +/- 2°
    • Audio channels frequency response : 30 Hz χ15 kHz within 0.5 dB
    • Audio channels THD : at 400 Hz +/- 0.1 %
    • Modulation system : F3 (CCIR 405/1)
    • Frequency deviation : ± 8 MHz pp
    • Modulation linearity : IF ± 8 MHz > 0.5 %
    • BB/Video input level : 1 Vpp: ± 1 dB (75 ohms unbal)
    • Video input connector : BNC
    • Video preemphasis (bypassable) : C.C.I.R. 625 lines
    • Audio input level (Df = 70 kHz pp) : -6 χ + 12 dBm (600 Ohms balanced)
    • Audio input connector : XLR female
    • Audio pre-emphasis (bypassable) : 50 mS
    • Audio subcarrier frequencies : 5.50Mhz, 5.75MHz (others on request)
    • Power supply : AC 220/240V +/-15%, 50/60 Hz
    • Standard Rack : 19 inch

    2. MVL-T/O Outdoor Up-Converter / Transmitter :

    • Transmitted Output frequency : 1.3Ghz - 8.9Ghz (depends on models)
    • Transmitted Output Power : up to 5 Watt (depends on models)
    • IF standard input frequency : 750 χ 950 MHz
    • IF input levels : -3 χ +5 dBm (50 ohms)
    • Spurious attenuation : > 60 dB
    • Frequency stability standard : ± 35 ppm, optional ± 10 ppm (-20°χ +50° C)
    • Power supply : 24 VDC ± 10%
    • Outdoor operating temperature range : -20 χ +50 °C
    • Outdoor operating humidity range : +/- 95%
    • Outdoor boxes Standart : 35x30x15 Cm

  • Receiver Sites Data Specifications :


  • 1. MVL-R/O Outdoor Down Converter / Receiver :

    • Received RF Input frequency : 1.3Ghz - 8.9Ghz (depends on models)
    • Received RF input level : -35 χ 80 dBm (50 ohms)
    • IF frequency : 750 χ 950 MHz
    • IF output levels : - 40 χ +5 dBm
    • Receiver noise figure : 8 dB (5 dB typ.)
    • Image frequency suppression : 65 dB
    • Power supply : 24 VDC ± 10%
    • Outdoor operating temperature range : -20 χ +50 °C
    • Outdoor operating humidity range : 95%
    • Outdoor boxes Standart : 315x265x125 mm

    2. MVL-R/I Indoor IF Demodulator (RX) :

    • IF standard frequency : 750 χ 950 MHz synthesized
    • IF input level : -40 χ + 5 dBm (50 ohms)
    • IF+ 24 VDC input connector : N-type female
    • IF standard group delay : (IF ± 8 MHz ) ± 1.5 ns
    • Video de-emphasis (bypassable) : C.C.I.R. 625 lines
    • BB amplitude frequency response : 5 Hz χ 9.1 MHZ within 1 dB
    • Video amplitude frequency response : 5 Hz χ 5 MHz within 0.5 dB
    • Group delay in video band : 5 Hz χ 5 MHz within 20 ns
    • Differential gain : +/- 2%
    • Differential phase : +/- 2°
    • BB/Video output level : 1 Vpp: ± 1 dB (75 ohms unbal)
    • Video output connector : BNC
    • Audio subcarrier frequencies : 5.50Mhz, 5.75MHz (others on request)
    • Audio output level (Df = 70 kHz pp) : -6 χ + 12 dBm (600 ohms balanced)
    • Audio de-emphasis (bypassable) : 50 mS
    • Audio channels frequency response : (30 Hz χ15 kHz) within 0.5 dB
    • Audio channels THD : (at 400 Hz) ± 0.1 %
    • 2nd IF (optional) : 70 MHz
    • 2nd IF group delay : (70 MHz ± 8 MHz) ± 3ns
    • Power supply : AC 220/240V +/-15%, 50/60 Hz
    • Standard Rack : 19 inch






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