Wireless microphone system for railways type C

Wireless microphone system for railways type C

Features

  • The durability of the main body and switches of this type has been greatly improved along with its ease to grab and push its buttons, so that it can respond to various usage conditions.
  • Moreover, it has IPX4-equivalent waterproof performance, and so can be used in rainy conditions.
  • It also has control switches that can be used for not only broadcast but remote control of facilities, supporting rail station operations.
  • Analog or digital control signals can be selected.
  • Digital IDs can be set to use the function of preventing improper use.
  • The microphones are powered by commercially available AAA nickel metal hydride rechargeable batteries, contributing to maintenance and cost reduction.
  • This product uses, as a receiver, a 4-ch receiver unit capable of being mounted on a 1U rack, allowing for space saving.

Wireless microphone WTH-3260, 3262, and 3265

Features

  • Low noise thanks to a synthesizer/compander system
  • Robust, small, lightweight and easy-to-use body
  • Waterproof performance equivalent to the IPX4 standard
  • Capable of not only broadcasting, but remote control of up to 5 targets, and switching between 4 frequencies
  • Preventing improper use of control signals by selecting digital control signals and assigning IDs
  • Powered by commercially available AAA nickel metal hydride rechargeable batteries

Specifications

Transmission frequency One frequency from 13 channels between 322.025 and 322.400 MHz
Types of radio wave:F3E/F8W/F1D F3E/F8W/F1D
Oscillation method Crystal-controlled PLL synthesizer system
Transmission output 1mW
Microphone unit Omnidirectional electret condenser microphone
Antenna Incorporated in the main body
Modulation sensitivity ±2.25 kHz (at 103 dB SPL and 1 kHz)
Frequency characteristics 300 Hz to 7 kHz (50 μsec emphasis at 1 kHz reference)
Number of targets controlled 0(WTH-3260) 2(WTH-3262) 5(WTH-3265)
Channel switching 4 channels
Power supply AAA nickel metal hydride rechargeable battery 1.2 V × 2 750 mA
Operating time 6 consecutive hours (depending on the conditions, during intermittent operation)
Environment -10 to +50°C (No condensation) *Note that the temperature characteristics of batteries are not included
Waterproof standard Compliant with the IPX4 rating
Mass Approx. 167 g (WTH-3260), approx. 169 g (WTH-3262), approx. 170 g (WTH-3265) *The mass of straps is not included

Wireless receiver WRU-3210 and 3250 models

Features

  • Allowing low-noise multi-channel operation, thanks to the use of the 322 MHz band and a synthesizer/compander system, and making it easy to change the frequency
  • Space diversity reception system that causes few sound dropouts, reducing dead points
  • Withstanding interference thanks to the combined use of a tone squelch and a carrier squelch, shutting out noise during wait for reception
  • Displaying the antenna input system that is during reception, using the A and B indicators

Specifications

Reception frequency One frequency from 13 channels in the 322 MHz band
Reception circuit system Diversity double super heterodyne system
Reception sensitivity 20 dBμVEMF or less (SINAD 25dB)
Squelch system Tone squelch/carrier squelch/ID code detecting function (selection system)
S/N 50 dB or more (RF40dBμV, ±2.25 kHz deviation, 1 kHz modulation)
Frequency characteristics 300 Hz to 7 kHz (50 μsec emphasis at 1 kHz reference)
Remote output Remote output Output by a photocoupler (common)
Power supply DC12 V (Supplied by WOL-8110)
Environment -10 to +50°C (No condensation)
Mass Approx. 157g (WRU-3210 model/WRU-3250 model)

Storage rack WOL-8110

Features

  • Capable of storing up to 4 receivers
  • Capable of being mounted on an EIA rack (1U) or JIS rack (1J)

Specifications

Antenna input A system × 2, B system × 2 (BNC-J, 75Ω)
Output level -20/-50dBm
Power supply AC100V 50/60Hz
Environment -10 to +50°C (No condensation)
Mass Approx. 4.0 kg (not including the WRU-3210/3250 receiver models)

Antenna divider WDL-3220

Features

  • 8 antenna inputs and 4 branch outputs
  • Eliminating internal loss resulting from mixing or distribution, thanks to a built-in booster amplifier, fully bringing out the performance of the receiver.
  • Capable of being mounted on an EIA rack (1U) or JIS rack (1J)

Specifications

Antenna input A system/B system × 4 (each) (BNC-J, 75Ω)
Antenna output A system/B system × 2 (each) (BNC-J, 75Ω)
Passband 322.025 to 322.400 MHz
Gain 3dB (0 dB during the use of WOL-8110)
Power supply AC100V
Superimposed power supply V (antenna input pin)
Environment -10 to +50°C (No condensation)
Mass Approx. 3.8 kg
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