MIPRO MT-90A Wireless Interlinking Transmitter User Guide

MIPRO MT-90A Wireless Interlinking Transmitter

Parts Name

Front Panel

Rear Panel

1. Power Switch & Indicator

2. AF Signal Indicators

3. RF Signal Indicators

4. Transmitter Module: Plug-in module preset with 16 selectable channels.

5. RF Output Connector

6. RF Output Switch

7. +48 Phantom Power Switch

8. AF Level Knob

9. AF Level Switch: MIC LEVEL (0 dB) and LINE LEVEL (-20 dB) audio output for optimal modulation index.

10. Combo Jack Connector

11. DC Input Connector
    Parts Name

12. Channel screen

13. Channel button

14. LEVEL LIMIT Volume Limiter Indicator

15. Frequency Band Code

Transmitter Frequency Set-Up

1. Press and hold Channel button for 2 seconds until numeric LED blinks continuously to denote it is ready for changing channel.
2. During blinking, press and release the Channel button until one of the 16 preset channels is selected.
3. If Channel button is not pressed within 6 seconds during blinking the current numeric channel remains the same.
4. Volume Limit Indicator will not be illuminated under normal input signals.
5. Volume Limiter Indicator will be illuminated if over normal input signals. Reduce volume to desired level.

Operating Tips

1. The transmitter functions when the module and antenna are inserted properly and powered on. Ascertain the frequency code sticker is the same between the transmitter and receiver.
2. Select another module with a different frequency code if the existing operating frequency experiences continuous interference.
3. Module is available in frequency codes between 620~934MHz and compatible with MIPRO wireless receivers or portable PA amplifiers with the same frequency codes.
4. Insert and Remove the Module:
   • Remove the front cover plate.
   • Insert module gently into slot horizontally.
   • Fasten the panel with the attached two screws.
   • To remove, reverse the above steps.
5. Proper RF Output Level and Output Connector Settings:
   • High or Low RF level switch is located at the rear panel. The front panel will display the current High or Low RF output power setting.
6. +48V Phantom Power Setting:
   • + 48V Phantom Power is available from the combo jack connector. Use the +48V Phantom Power Switch at the rear panel to activate this function.
7. Proper AF (audio) Input and Connection:
   • Combo jack connector accepts balanced (XLR) or 1/4-inch (6.3 0) unbalanced cable.
   • Proper input volume adjustment is needed after the AF signal is connected. Two selectable AF levels (MIC/LINE) can be selected from AF Level Switch 0 for optimal audio sensitivity. Exceeding input volume will result in distortion for receiver AF output, and insufficient input volume will degrade the S/N ratio that increases higher background noise. RF, proper setting ensures optimal output audio quality.
8. Optimal AF Input Volume Setting:
   • The AF Signal Indicators 8 indicates the input audio signal level. Normal volume: 2-3 LEDs are lit. High volume: 4 LEDs are lit. Peak volume: Red Limit indicator will be lit to denote a warning.
   • When 4-5 LEDs are lit constantly it denotes exceeding input volume and input attenuation is required. Switch the input volume switch@)to -20dB or adjust the AF Level Knobfi)counterclockwise for modification.
   • When 1-2 LEDs are lit constantly it denotes insufficient input volume and less input attenuation is required. Switch the input volume switch 0 to OdB or adjust the AF Level Knob fi) clockwise for modification.
9. Selection of Transmitting Antenna AF Input Volume Setting:
   • MIPRO UHF antennas such as non-directional 1/4 Jo. antenna and 1/2 Jo. antenna, AT-70W, AT-90W or AT-100 wideband directional antenna can be selected as the transmitting antenna to increase transmitting range.
   • The use of AT-70W, AT-90W or AT-100 wideband directional antenna connected with 500 coaxial cable provides higher transmission efficiency for the system.
   • MIPRO AD-90S high power splitter, or AD-90A high power amplifier, can be installed to greatly increase transmitting range and coverage to reduce signal dropouts.

Notes

1. Refer to the actual product in the event of product description discrepancy.
2. Frequency range and maximum deviation comply with the regulations of different countries.

Federal Communication Commission Interference Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radiofTV technician for help.

FCC Caution: To assure continued compliance, any changes or modifications not expressly approved by the party responsible for compliance could void the uses authority to operate this equipment. (Example – use only shielded interface cables when connecting to computer or peripheral devices).

FCC Radiation Exposure Statement
This equipment complies with FCC RF radiation expcsure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 0.5 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The antennas used for this transmitter must be installed to provide a separation distance of at least 0.5 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

IC
This device complies with Industry Canada RSS-210

ISSUE 2 standards. Operation is subject to the following two conditions:

1. this device may not cause interference, and
2. this device must accept any interference, including interference that may cause undesired operation of the device.

Disposal
Dispose of any unusable devices or batteries responsibly and in accordance with any applicable regulations. Disposing of used batteries with domestic waste is to be avoided! Batteries / NiCad cells often contain heavy metals such as cadmium(Cd), mercury(Hg) and lead(Pb) that makes them unsuitable for disposal with domestic waste. You may return spent batteries/ accumulators free of charge to recycling centres or anywhere else batteries/accumulators are sold. By doing so, you contribute to the conservation of our environment!

MIPRO Electronics Co., Ltd

• Headquarters: No. 814, Beigang Rd., Chiayi City 600079, Taiwan
• Tel : +886.5.238.0809

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