PART OF A COMPLETE LINE
The 885TT is part of a full line of mobile microphones, circuitry
products and related accessories.
For a complete listing, contact your Shure Communications
Representative by calling 847.353.3100 or visit
ww.shurecomm.com.
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Voice communication use such as:
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Landmobile
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Marine
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Transit
APPLICATIONS
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Shure Communications is committed to developing and
implementing
intelligent
microphone systems and solutions.
As a technology leader in acoustics, signal processing, and RF,
we can help our customers meet their current and future mobile
communication needs.
ABOUT SHURE COMMUNICATIONS
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GENERAL DESCRIPTION
The 885TT is a hand-held, amplified, condenser DTMF communications microphone with an
illuminated keypad.The microphone is ideal for upgrading existing two-way radios for use with
advanced telephone interconnect systems or for new installations. It is designed for rugged and
reliable operation in any mobile communications application.The 885TT has an omnidirectional
pickup pattern and provides extremely clear transmission, even in noisy environments. In addition
to its clear, crisp, natural voice response, the 885TT has extremely low sensitivity to hum pickup
and low susceptibility to radio frequency interference. For installations where transmitter input gain
requires sensitivity modification, the 885TT has convenient, externally accessible screwdriver
controls for independent adjustment of both microphone and DTMF levels.This eliminates the
problem of fixed audio levels and the necessity for disassembling the microphone for adjustments.
Restricting control access also prevents accidental changes common to external controls.
MODEL 885TT
USER GUIDE
DTMF COMMUNICATIONS
MICROPHONE
CONTINUED ON PAGE TWO
TOP-TALK SOUND CHANNELS
™
FOR
CLEAR VOICE INPUT, EASY HANDLING
BUILT-IN TRANSISTOR AMPLIFIER
(POWERED BY CARBON-MICROPHONE-
TYPE CIRCUIT)
FREQUENCY RESPONSE FROM 200
TO 4,000 Hz,TAILORED FOR VOICE
COMMUNICATIONS
ILLUMINATED KEYPAD WITH POSITIVE
TACTILE FEEL AND AUDIBLE
CONFIRMATION TONES
AUTO PUSH-TO-TALK (APTT)
AUTOMATICALLY KEYS TRANSMITTER
WHEN KEYPAD IS DEPRESSED
CONVENIENT EXTERNAL MICROPHONE
GAIN ADJUSTMENT ACCOMMODATES
MOST INPUT CIRCUITS
SIMPLE, EASY-TO-USE CONTINUOUS-
TONE DIALING
EXTERNALLY ACCESSIBLE DTMF LEVEL
ADJUSTMENT, INDEPENDENT OF
MICROPHONE GAIN SETTING
MODULAR-PLUG COIL-CORD–EASILY
ATTACHED AND REMOVED.AVAILABLE
WITH PLUGS TO FIT MOST POPULAR
RADIO SETS
LOW SENSITIVITY TO HUM PICKUP
LOW SUSCEPTIBILITY TO RADIO
FREQUENCY INTERFERENCE
RUGGED MILLION-CYCLE PLUS
™
LEAF-TYPE SWITCH STANDS UP
UNDER SEVERE ENVIRONMENTS
AND CONSTANT USE
HIGH-IMPACT ARMO-DUR
®
CASE–
STRONGER AND LIGHTER THAN
DIE-CAST METAL, COMFORTABLE TO THE
TOUCH IN HOT OR COLD WEATHER
RUGGED AND DEPENDABLE UNDER ALL
OPERATING CONDITIONS
STURDY, CONVENIENT MOUNTING
BUTTON FOR ATTACHING TO EQUIPMENT
OR NEARBY SURFACE USING
OPTIONAL MOUNTING BRACKET
HANG-UP BUTTON CONNECTION
AVAILABLE FOR MICROPHONE HANG-UP
SENSING (MOUNTING BRACKET MUST
BE GROUNDED.)
FEATURES
