Model 598T User Guide
GENERAL DESCRIPTION
The 598T is a handheld, amplified, noise-canceling communications microphone that is FAA Certified for aircraft application (TSOC58a). In addition to its extremely clear transmission, even in noisy
environments, the 598T has very low sensitivity to hum pickup and
low susceptibility to radio frequency interference.
The 598T is ergonomically designed and fits naturally in the
hand. Its high-impact ARMO-DUR
comfortable to the touch in hot or cold environments.
A five-conductor MODULINK
the microphone to the PJ-068 plug on most aircraft radios. This cable can be instantly changed or replaced without soldering. A miniature screwdriver is supplied for unlocking and removing the
cable.
The microphone is powered directly from the microphone input
of the transmitter, allowing the 598T to be installed and operated
with most modern aircraft radios without equipment modification.
Output levels are factory preset to meet TSO-C58a requirements.
Only an FAA Approved Service Facility or Shure Incorporated
should make adjustments.
®
case is strong, lightweight, and
®
cable (sold separately) connects
FEATURES
•
FAA CERTIFIED FOR AIRCRAFT USE
•
USES DETACHABLE MODULINK® MODULAR-PLUG
COIL CORD (AVAILABLE WITH PJ-068,ALM-88, ALM89 AIRCRAFT-RADIO PLUG, A4M CONNECTOR)
•
NOISE-CANCELING WITH FREQUENCY RESPONSE TAILORED FOR OPTIMUM INTELLIGIBILITY
•
BUILT-IN TRANSISTOR AMPLIFIER POWERED BY CARBONMICROPHONE-TYPE CIRCUIT
•
LOW SENSITIVITY TO HUM AND RF INTERFERENCE
•
RUGGED MILLION-CYCLE PLUS™ LEAF-TYPE
SWITCH
•
STANDS UP UNDER SEVERE ENVIRONMENTS AND CONSTANT USE. NICKEL-SILVER BLADES WITH PALLADIUMALLOY CONTACTS FOR RELIABLE OXIDATION-FREE OPERATION
•
IMMUNE TO OIL, GREASE, MOST FUMES AND SOLVENTS,
SALT SPRAY, SUN, RUST AND CORROSION
•
OUTSTANDING IN ITS ABILITY TO WITHSTAND MECHANICAL SHOCKS AND VIBRATION.
•
RUGGED AND DEPENDABLE UNDER ALL OPERATING
CONDITIONS
APPLICATIONS
Voice communication, including aerospace.
PART OF A COMPLETE LINE
The 598T is part of a full line of mobile microphones, circuitry
products and related accessories.
For a complete listing, contact your Shure Representative or vis-
it www.shure.com.
SET-UP
Mounting
A hang-up loop comes affixed to the microphone. Heavy-duty
mounting brackets for attachment to radio equipment or other surfaces are available as an accessory (Shure RK6MB).
Cable
To attach the cable to the 598T, insert the modular telephonetype plug in the microphone jack until it locks. To remove the cable,
insert the supplied miniature screwdriver in case hole just above
the cable jack (see Figure 1) to unlock the plug and withdraw the
plug from the jack.
®
The MODULINK
as shown in Figure 4. See the microphone connector wiring table
(Table 1).
Table 1-1. Microphone Connector Wiring
Pin Color Function Pin Color Function
1 N.C. 5 Black PTT
2 White Dc Bias (+),
3 Yellow PTT Switch 7 Drain Ground
4 Blue NC 8 N.C.
cables are wired at the microphone connector
Switch
Ground
Audio Out
6 Red Audio Out
(AC
coupled)
OPERATION
1. Hold the microphone comfortably in the hand with the front of
the microphone facing the mouth.The clearest sound is often
obtained with the microphone at the corner of the mouth, with
the cable away from the face.
2. Depress the push-to-talk button to activate the microphone.
Make sure the equipment is in transmit mode when speaking.
©2004, Shure Incorporated
27A6004B (Rev. 2)
®Shure, MODULINK®, and ARMO-DUR are registered trademarks of Shure, Incorporated.™
Million-Cycle Plus and Top-talk Sound Channel are trademarks of Shure Incorporated.
All other trademarks are the property of their respective owners.
Printed in U.S.A.
SPECIFICATIONS
Type
Electret condenser, noise canceling
Frequency Response
350 to 6,000 Hz (see Figure 3)
+10
0
dB
–10
98765432
Hz
FREQUENCY RESPONSE
FIGURE THREE
Polar Pattern
Bidirectional, noise canceling
Electrical Characteristics
Operating Voltage
8 V 16 V 28 V
Audio Output Level*
(1 Pascal acoustic
test signal at 1
kHz, 6 mm)**
Dc Supply Current
* Standard electrical test circuit per RTCA DO-214
**1 Pascal = 94 dB SPL
–25.5 dBV
(53.1 mV)
2.3 mA 11 mA 27 mA
–25.0 dBV
(56.2 mV)
Environmental Conditions
Operating Temperature: -30 to 60° C (-22 to 140° F)
Storage Temperature: -40 to 74° C (-40 to 165° F)
Relative Humidity: 0 to 95% (non-condensing)
Microphone Connector
6-conductor modular telephone type
PTT Switch assembly
Mechanical: Double-pole, single-throw, leaf-type, normally open
Cable
ALM-88, detachable MODULINK
®
, 1.8 m (6 ft) extended cord
with modular plug on microphone end and PJ-068 aircraft connector on equipment end; and ALM-89 with A4M type connector.
Construction
Case: Black textured high-impact ARMO-DUR
Switch Button: Black ARMO-DUR
®
Hang-up Loop: Matte finish
stainless steel
Dimensions
See Figure 2
Net Weight (including cable and connector)
283 g (10 oz)
FAA Certification
The Model 598T is FAA Certified for aircraft use under FAA
TSO-C58a requirements. To maintain this FAA Certification,
any service required for the Model 598T must be performed by
Shure Incorporated or by an FAA Approved Service Facility.
–24.8
dBV
(57.5 mV)
®
98765432
200001000 1000050 100
Limited Warranty
Shure Incorporated (“Shure”) hereby warrants that this product
will be free in normal use of any defects in materials and workmanship for a period of one year from the date of purchase for all cartridge and housing assembly parts and for a period of one year
from the date of purchase for all transmitter parts. At its option
Shure will repair or replace the defective product and promptly return it to you, or refund the purchase price. You should retain proof
of purchase to validate the purchase date and return it with any
warranty claim. If you believe this product is defective within the
warranty period, carefully repack the unit, insure it and return it
postage prepaid to:
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 Shure’s instruction, ordinary wear and
tear, an act of God or unauthorized repair. All implied WARRANTIES OF MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE are hereby disclaimed and Shure hereby disclaims liability for incidental, special, or consequential damages resulting
from the use or unavailability of this product. Some states do not
allow limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or consequential damages, so the
above limitation may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from
state to state.
THIS WARRANTY SUPERSEDES ALL OTHER WARRANTIES
THAT ARE ASSOCIATED OR INCLUDED WITH THIS PRODUCT.
Furnished Accessories
Screwdriver......................................................... 80B498
Optional Accessories
Mounting Bracket (3 in kit) ..................................RK6MB
Replacement Parts
Modular plug-cable with PJ-068 plug assembly.. ALM-88
A4M type connector............................................ALM-89
2