Contents

GENERAL DESCRIPTION
- The 888TT handheld, amplified, noise-canceling DTMF communications microphone is FAA Certified for aircraft application (TSO-C58...
- Audio and DTMF levels can be independently adjusted with the supplied screwdriver to match the transmitter input gain. These pro...
- The illuminated keypad is made of tough silicone rubber, with durable printed characters that will last the life of the microphone. The keypad is backlit by red LEDs, easily visible during night operation, minimizing eye readjustment for night vision.
- The 888TT may be used with most currently available aircraft radios. For convenience, all microphone and signaling functions, in...
- The 888TT is ergonomical, fitting naturally and comfortably in the hand. The voice-entry port is at the top of the microphone bo...
- The microphone is supplied with output levels factory preset to meet TSO-C58a requirements. Adjustments should be made only by an FAA Approved Service Facility or the Shure Service Department.
- The 888TT is supplied with a small screwdriver for releasing the modular-plug microphone cable from the case and for adjusting t...
PART OF A COMPLETE LINE
- The 888TT is part of a full line of mobile microphones, circuitry products and related accessories.
- For a complete listing, contact your Shure Representative or visit www.shure.com.
APPLICATIONS
FEATURES
SET-UP
- The 888TT is equipped with a hang-up loop and a rear-case hang-up button for use with a mounting bracket on associated equipment.
- Heavy-duty chrome-plated mounting brackets are available in quantities of three as Shure Part No. RK6MB.
CONNECTIONS
- To attach the cable to the 888TT, insert the modular telephone- type plug in the microphone jack until it locks.To remove the ca...
OPERATION
- Voice Transmission
  - 1. Hold the microphone comfortably in the hand positioned so that the Top-Talk Sound Channels at the top of the case are near t...
  - 2. Depress the push-to-talk button and make sure the equipment is in the transmit mode before speaking.
- Dialing
  - 1. Press and hold the push-to-talk button.
  - 2. Press the desired keypad buttons in sequence.A high-pitched tone will confirm that the code has been transmitted. (The microphone audio is muted during DTMF tone transmission.)
  - Operation of microphone and DTMF functions requires that the 888TT be connected to the communications equipment and that the equipment power is turned on.
  - After connection to the communications set, turn the equipment power On. Pressing the push-to-talk switch and observing the keypad LED backlighting can verify power application.
  - Factory preset microphone audio and DTMF levels are correct for aircraft radios with standard input circuits (as defined in RTCA...
  - Use the supplied screwdriver to adjust the microphone sensitivity and DTMF output levels as follows:
  - 1. Microphone sensitivity: Press the push-to-talk button and speak normally into the microphone while checking transmitter modulation.Adjust the microphone sensitivity control (case back, hole B in Figure 4) and repeat the talk test as required.
  - 2. DTMF output: Press and hold the push-to-talk button. Depress and hold down a keypad button for a continuous tone. Adjust the DTMF output control (case back, hole C in Figure 4) as required.
SPECIFICATIONS
- Type
- Frequency Response
- Polar Pattern
- Electrical Characteristics
- Environmental Conditions
- Microphone Connector
- PTT Switch Assembly
- Cable
- Construction
- Dimensions
- Net Weight (including cable and connector)
Replacement Parts
- Modular plug-cable with PJ-068 plug assembly ALM-88
- A4M type connector ALM-89
Furnished Accessories
- Screwdriver 80B498
Optional Accessories
- Mounting Bracket (3 in kit) RK6MB
FAA Certification
- The Model 888TT is FAA Certified for aircraft use under FAA TSO-C58a requirements. To maintain this FAA Certification, any service required for the Model 888TT must be performed by Shure Incorporated or by an FAA Approved Service Facility.
Warranty
- Shure Incorporated (Shure) hereby warrants that this product will be free in normal use of any defects in materials and workma...
- Shure Incorporated Attention: Service Department 5800 W. Touhy Avenue Niles, IL 60714-4608 U.S.A.
- Outside of the United States, return the product to your dealer or Authorized Service Center.
- This warranty does not apply in cases of abuse or misuse of the product, use contrary to Shures instruction, ordinary wear and ...
- THIS WARRANTY SUPERSEDES ALL OTHER WARRANTIES THAT ARE ASSOCIATED OR INCLUDED WITH THIS PRODUCT.
FIGURES
ENVIRONMENTAL QUALIFICATION FORM,TSO-C58A
INFORMATION TO USERS
- 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 R...
- 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 or more of the following measures:
- Consult the dealer or an experienced radio/TV technician for help.

Shure 888TT User Guide

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Shure 888TT Microphone Specification

The Shure 888TT Microphone is a professional-grade dynamic microphone engineered for high-fidelity sound capture across various applications, including live performance, studio recording, and broadcasting. It features a unidirectional cardioid pickup pattern, optimizing it for isolating the desired sound source while minimizing ambient noise and feedback. The microphone is equipped with a neodymium magnet, offering a high output level and superior transient response. It has a frequency response range of 50 Hz to 16 kHz, ensuring accurate reproduction of both low and high frequencies.

The 888TT is constructed with a rugged, die-cast metal body, designed to withstand the rigors of regular use in demanding environments. It includes an internal shock mount system that reduces handling noise and vibrations, enhancing the clarity of the audio output. The microphone comes with an integrated windscreen to minimize plosive sounds and wind interference, making it suitable for outdoor use as well. Connectivity is facilitated through a standard XLR output, providing compatibility with a wide range of audio equipment.

A key feature of the Shure 888TT is its versatile design, which allows it to be used effectively in both handheld and mounted configurations. The ergonomic body shape ensures comfortable handling during performances. Additionally, the microphone's sleek, matte finish provides a professional aesthetic that complements any setup. The Shure 888TT Microphone is an ideal choice for professionals seeking reliability, high-quality sound reproduction, and durability in a single package.

Shure 888TT Microphone F.A.Q.

How do I set up the Shure 888TT Microphone for optimal sound quality?

To set up the Shure 888TT Microphone for optimal sound quality, ensure it is connected to a quality mixer or audio interface. Position the microphone about 6-12 inches from the sound source and use a pop filter to reduce plosives. Adjust the gain on your mixer to avoid clipping and test the levels with a few vocal checks.

What steps should I follow to troubleshoot if the Shure 888TT Microphone is not picking up sound?

If the microphone is not picking up sound, first check all cable connections to ensure they are secure. Verify that phantom power is enabled on your mixer or audio interface if the microphone requires it. Test the microphone with a different cable and input channel to rule out faulty equipment.

How can I reduce background noise when using the Shure 888TT Microphone?

Reduce background noise by positioning the microphone closer to the sound source and using a cardioid pickup pattern if available. Utilize a noise gate or a high-pass filter through your mixer or DAW to minimize ambient sounds. Consider using soundproofing materials in your recording space.

What maintenance is required to keep the Shure 888TT Microphone in good condition?

Regularly clean the exterior of the microphone with a soft, dry cloth. Avoid using any liquids or solvents. Periodically check and clean the microphone grille to remove dust and debris. Store the microphone in a protective case when not in use to prevent physical damage.

Can I use the Shure 888TT Microphone with a USB audio interface?

Yes, you can use the Shure 888TT Microphone with a USB audio interface. Ensure that your interface has an XLR input and provides phantom power if the microphone requires it. Connect the microphone using an XLR cable and configure the interface settings on your computer.

What is the best way to prevent feedback during live performances with the Shure 888TT Microphone?

To prevent feedback, position speakers in front of the microphone and use in-ear monitors if possible. Adjust the equalizer to lower frequencies that are prone to feedback and maintain an appropriate distance between the microphone and speakers.

How do I replace the grille on the Shure 888TT Microphone if it gets damaged?

To replace the grille, carefully unscrew the old grille from the microphone body. Align the new grille and screw it into place, ensuring it is securely fastened. It is advisable to use a genuine Shure replacement grille for the best fit and performance.

What should I do if the Shure 888TT Microphone produces a humming noise?

If the microphone produces a humming noise, check that all cables are properly connected and not damaged. Ensure that the microphone is grounded by connecting it to a grounded audio interface or mixer. Try using a different power outlet to eliminate electrical interference.

Is the Shure 888TT Microphone suitable for recording vocals in a home studio?

Yes, the Shure 888TT Microphone is suitable for recording vocals in a home studio. It offers a wide frequency response and excellent clarity. To achieve the best results, use it in a treated room and pair it with a high-quality preamp or audio interface.

How can I connect the Shure 888TT Microphone to a computer for recording?

To connect the Shure 888TT Microphone to a computer, use an audio interface with an XLR input. Connect the microphone to the interface using an XLR cable, then connect the interface to the computer via USB or Thunderbolt. Install any necessary drivers and configure your recording software to recognize the interface.