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 FM Transmitters |
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| Translation India provides both stationary as well as wireless FM transmitters that transmit sound over radio frequencies. Radio frequency ranges between 21 megahertz to 72 megahertz. The 72 MHz range offers up to six channels operating in the same area, but the broadcast range is limited to 1,500 ft. While the 21 MHz frequency range offers a broadcast range of 3000 ft. but is limited to 3 channels operating in the same area. These transmitters can transmit 3-8 languages simultaneously using different FM receivers. |
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Stationery Transmitters
We have five varieties of stationery transmitters available for rent. |
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 This transmitter has an operating range of upto 1000 ft. and is suitable for large venues like theatres and auditoriums where a wide coverage area is needed. It consists of a powerful microprocessor, easy-to-use menu controls and a sleek LED digital display. It runs on 10 wide band channels and 77 narrowband channels.
Its Application preset menu is very easy to use and one can quickly choose options of Voice, Music, or Hearing Assistance. Hence even a novice audio user can easily set up the system. The device configures itself to the appropriate setting.
Its specifications are as follows:
- Dimensions, Weight : 8.45" (21.5 cm) W x 8.18" (20.8 cm) D x 1.72" (4.4 cm) H, 3.1 lbs. (1.4 kg)
- Power: Wall mount Class II transformer (TFP 016)
- Input: 120VAC, 60Hz, 17W
- Output: 24VAC, 500mA with 3-pin Molex® plug
- Operating Frequencies: 72.1–75.9 MHz , 10 wide band channels (selectable);
7 non-standard wide band channels (selectable) ; 72.025 - 75.975 MHz, 77 narrowband channels (selectable).
- Frequency Accuracy: ±.005% stability, 0-50° C
- Deviation: Wide band ± 75 kHz maximum. Narrowband ± 5kHz maximum
- Frequency Response: 22 – 16000 Hz, +1, -3 dB (adjustable)
- Signal to Noise Ratio: 74dB transmitted
- RF Field Strength: Does not exceed 8 mV/m at 3 m
- Pre-Emphasis: Wide band 75 µsec. Narrowband 300 µsec
- Nominal Range: Up to 1000 ft. (304 m) Maximum transmitter range is achieved using the ANT 005 coaxial antenna
- Audio Proc. Functions: Reduced or Normal Compressor Gain Compression Slope Control High Pass and Low Pass Filter Frequency control
- LCD Menu Controls: Applications Presets (Music, Voice, Hearing Assist) (Push-button selection) Bandwidth, Frequency, Audio Input Source (Microphone, Line, Simplex), High Pass Filter, Low Pass Filter, Compressor Slope, Compressor Gain, RF Output Power.
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This transmitter has an operating range of 300-500 ft. It can be fine tuned to 10 wide band channels. It features comprise of an audio level adjust, and an audio indicator. It can accept an unbalanced line-level input or a condenser microphone.
Dimensions, Weight : 3.25" W x 6.875" L x 1.75" H (82.5 mm x 174.6 mm x 44.5 mm)
- Power: 105-130 VAC, 50-60 Hz, 0.5 W with TFP 008 power supply
- Operating Frequencies: CH A (72.1 MHz), CH B (72.3 MHz), CH C (72.5 MHz), CH D (72.7 MHz), CH E (72.9 MHz); CH F (75.5 MHz), CH G (75.7 MHz), CH H (75.9 MHz), CH I (74.7 MHz), CH J (75.3 MHz); CH E (72.9 MHz) is standard
- Frequency Selector: Internal switches, 10 channels
- Modulation: 75 kHz (wide-band) max.
- Stability: ± .005% over 0-50°C
- Distortion: 1% max. THD
- Frequency Response: 100 Hz-15 kHz, ± 3 dB with PPA R7 Receiver
- Signal to Noise Ratio: 55-60 dB with R7 Receiver
- RF Field Strength: 8000 µV/m at 30 m Max., 20 mW typical
- Pre-Emphasis: 75 µS
- Audio Processor: Fast-attack, fast decay compressor
- Operating Requirements: 0-50° C ambient temperature, non-condensing, non-corrosive atmosphere
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With these stationery transmitters you can always be assured of finding a clear signal since they operate in the frequency range of 216MHz, with 57 channels. You can use upto 3 of these transmitters in the same area, meaning simultaneous interpretation can be provided for upto 3 languages. The interpreters sit in the separate sound booth, from where they can transmit the interpretation to different receivers upto 3000 ft. away.
You can also attain a high quality signal by connecting these transmitters to your main audio system. By using these transmitters in combination with Power Amplifiers or Wireless Speaker Receivers you can also obtain remote amplification. It even provides mixing of two audio inputs.
These are very easy to use and handle. They can either be placed on a shelf or mounted on a rack with other audio equipments. |
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These Transmitters consist of an audio processor that is optimised for ultra-flexible inputs, hearing assistance and phone and tape out jacks. It is very easy to select any of the 10 channels since the whole system is entirely field tunable.
These Transmitters can either be used with an interpreter's console or with a microphone or directly connected to the existing sound system. It has the capability to automatically adjust the antenna loading, while output power remains constant over all 10 channels. The frequency switches and the audio processor can even be accessed from outside. The phone and tape out jacks enable you to monitor and feed the signal to other audio equipment.
The other specifications are as follows:
- Power: 21 VAC minimum; 26 VAC maximum, 50 or 60 Hz 4.8 VA nominal; 10 VA maximum; wall mount transformer for 105 to 130 VAC included
- Operating Frequencies: 72.1 ;75.9 MHz * 10 wide band channels, selectable
- Frequency Accuracy: ±.005% stability, 0-50° C
- Deviation: ± 75 kHz maximum
- Frequency Response: 30 – 16000 Hz, +1, -3 dB
- Signal to Noise Ratio: More than 70 dB below 75 kHz deviation in Limit mode
- RF Field Strength: Does not exceed 8 mV/m at 3 m
- Pre-Emphasis: 75 µsec
- Nominal Range: up to 1,500 ft.
- Audio Proc. Functions: Soft Knee Limit or Compress Compression 10 dB additional gain when input is –20 dB 20 dB additional gain when input is –40 dB Soft Limiting > 10 dB additional gain when input is –45 dB
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These type of Transmitters consist of an audio processor that is optimized for ultra-flexible inputs, hearing assistance and phone and tape out jacks. It is very easy to select any of the 10 channels since the whole system is entirely field tunable.
These Transmitters can either be used with an interpreter's console or with a microphone or directly connected to the existing sound system. It has the capability to automatically adjust the antenna loading, while output power remains constant over all 10 channels. The frequency switches and the audio processor can even be accessed from outside. The phone and tape out jacks enable you to monitor and feed the signal to other audio equipment.
The other specifications are as follows:
- Power: 21 VAC minimum; 26 VAC maximum, 50 or 60 Hz 4.8 VA nominal; 10 VA maximum; wall mount transformer for 105 to 130 VAC included
- Operating Frequencies: 72.1–75.9 MHz * 10 wide–band channels, selectable
- Frequency Accuracy: ±.005% stability, 0-50° C
- Deviation: ± 75 kHz maximum
- Frequency Response: 30 – 16000 Hz, +1, -3 dB
- Signal to Noise Ratio: More than 70 dB below 75 kHz deviation in Limit mode
- RF Field Strength: Does not exceed 8 mV/m at 3 m
- Nominal Range: up to 1,500 ft.
- Pre-Emphasis: 75 µsec
- Audio Proc. Functions: Soft Knee Limit or Compress Compression 10 dB additional gain when input is –20 dB 20 dB additional gain when input is –40 dB Soft Limiting > 10 dB additional gain when input is –45 dB
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Wireless Transmitters
We provide for rent three different types of wireless transmitters suitable for different kinds of applications These are: |
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 This is a wide band transmitter that operates on ten selectable frequencies between 72 MHz and 76 MHz (up to six channels can be used simultaneously). It provides a 15 hours operation when using a 9-volt alkaline non-rechargeable battery, and can transmit a signal over a distance of 30-45m to any number of users with 72-76 MHz compatible receivers. The entire system is field –tunable and hence very easy to set up and use. No installation is required. Multiple microphone options are also available.
It has a wide range of applications including Factory Tours, Museum Tours, Power Plant Tours, Theme Park Tours, Zoo Tours etc.
Its specifications are as follows:
Dimensions & Weight: 3-5/8" L x 2-3/8" W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm);
3.2 oz (90 g) with battery
Battery Type: 9 Volt, Eveready 522 Alkaline or BAT 003 7-cell NiMH
Battery Life: 15 hours with Eveready 522, 3 hours/charge with BAT 003
Operating Frequency: 10 channels, 72.1, 72.3, 72.5, 72.7, 72.9, 75.5, 75.7, 75.9, 74.7,
75.3 MHz (Ch. G, 75.7 MHz is standard)
Stability: ± .005%, frequency synthesized, crystal reference, PLL
Modulation: Wide band, 75 KHz
Frequency Response: 100 to 10 KHz, ± 3 dB
Distortion: 1% max., THD
Signal-to-Noise Ratio: 50-55 dB, with R7 Receiver
Pre-Emphasis: 75 µS
Limiter: Fast-attack, fast decay compressor
RF Output: 30 MW typical
Automatic Gain Control: 40 dB range, 30 mV thresholds
Transmit Antenna: Integral with 40" microphone cord
Microphone: Noise-canceling headset, condenser, powered by the transmitter, 40" cord,
3.5 mm mini phone plug.
Controls: On/Off switch, slide-type
Microphone Connector: 3.5 mm mini phone jack, also serves as a charging jack for rechargeable battery |
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These transmitters can operate upto 150 ft. and are suitable for large classroom settings, job trainings, group meetings etc. They have the capability to transmit the speakers voice directly to the individual’s ears, which is equipped with a suitable receiver. The system is field tunable and it is very easy to select any of the 10 channels.
One of the key features of these transmitters is the microphone mute switch. If the speaker wants to have a private conversation or desires to eliminate unwanted sound transmission to the rest of the group (like the sound of shuffling papers); he can easily turn this switch on or off.
Its specifications are as follows:
Dimensions & Weight: 3-5/8" L x 2-3/8" W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm) ;
4.4 oz (125 g) with battery
Battery Type: 2 AA 1.5 V non-rechargeable Alkaline batteries (BAT 001), 70 mA
nominal current drain, 12 hours approx. life (OR) Two (2) AA 1.5 V NiMH rechargeable
batteries (BAT 026), 70 mA nominal current drain, 10 hours per charge approx.,
recharges in 14-16 hours, uses CHG 200 Charger
Operating Frequency: 10 channels, 72.1-75.9 MHz, internal DIP switch, Selectable
Frequency Response: 100 to 10 kHz, + 3 dB at 1% max. THD
Stability: + .005%, frequency synthesized, crystal reference, PLL
Modulation: Wide-band FM, 75 kHz, 75 µS pre-emphasis
Signal-to-Noise Ratio: 55-60 dB, with R31 or R32 Receiver
RF Output: 8000 µV/m at 30 m, max., 40 mW typical
Auto Gain Control: 40 dB range, 30 mV thresholds
Microphone: Omnidirectional condenser, Lavalier-type, 39" cord, 3.5 mm mono phone
plug (MIC 081)
Controls: On/Off switch, slide-type; Mute switch, slide-type
Mic Connector: 3.5 mm mono phone jack
Transmit Antenna: Integral with 39" microphone cord |
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This portable transmitter operates in the same way as the stationery transmitters, without the wires. It is ideally suited for tour groups, outdoor events, meeting rooms, trade shows, training facilities, mobile language interpretation and other wireless microphone applications where you need to amplify sound but do not have a sound system installed. It is capable of broadcasting the interpreter or tour guide's voice to everyone up to 150 feet away, without the need to carry a microphone or be plugged into the wall.
It broadcasts over 57 channels - 19 wide band, 38 narrowband channels on the 216 MHz frequency band and 40 narrowband & 17 wide band channels on the 72 MHz frequency band.
The LED display shows the channel selection, battery level and charging status. The ON/OFF status, mute status can also be checked. A charging circuitry is built into the unit to prevent overcharging, as well as to insure most complete charge. It also saves money and hassle by eliminating the cost of external battery chargers and extending rechargeable battery life.
The device has an audio frequency response of 50Hz to 15KHz, ±3dB at 72MHz, or of 50Hz to 10kHz, ±3dB at 216MHz. It broadcasts on both wide and narrow band channels with a Signal-to-noise-ratio of 80dB or greater. Hence it offers a superior audio quality, setting the industry’s sound quality standard. It is also compatibility with most assistive listening equipment. |
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| The other specifications are as follows: |
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Specification |
72 MHz |
216 MHz |
| RF |
Frequency Range |
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| Number of Channels |
57 (17 wide, 40 narrow) |
57 (19 wide, 38 narrow) |
| Sensitivity |
.6uV typical, 1 uV maximum for 12dB SINAD |
| Frequency Accuracy |
±.005% stability 0° to 50°C (32° to 122° F) |
| Stability |
50 PPM |
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| Audio |
System frequency response |
63Hz - 15kHz (± 3dB) |
63Hz - 10kHz (±3dB) |
| System Signal to Noise Ratio |
SQ enabled: 80dB; SQ disabled 60dB |
SQ enabled: 80dB; SQ disabled 50dB |
| System Distortion |
2% total harmonic distortion (THD) at 80% deviation |
| Battery Life |
20 hours alkaline (LA-361), 10 hours NiMH rechargeable (LA-362) |
| Battery Charging |
Fully automatic, 14 hours |
| Physical |
Dimensions |
3.0 in x 1.0 in x 5 in WxDxH |
| Weight with batteries |
5.8 oz (164.4g) |
| Door |
Manually lockable. UP, DOWN and power through door, other controls behind door (see Controls above) |
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