Model 590T User Guide
The microphone is ergonomically designed; it fits naturally and
comfortably in any hand and is not affected by heat or humidity.
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The rugged ARMO-DURcase is immune to oil, grease, most
fumes and solvents, salt spray, sun, rust and corrosion. It is out-
standing in its ability to withstand mechanical shocks and vibration.
The Million-Cycle Plus? leaf-type switch is a double-pole, sin-
gle-throw type, designed to resist the effects of severe operating
conditions and constant usage. It has nickel-silver blades, and its
contacts are palladium-alloyed for reliable, oxidation free opera-
tion.
The modular construction of the 590T provides excellent
con-venience in field servicing. In addition to the plug-in cable,
the cartridge and switch are easily replaced in minutes, should re-
placement ever be necessary. The microphone wiring is channeled
so that wire crimping or breaking is not a concern.
The 590T is supplied with a small screwdriver which can be
used for both adjusting the microphone amplifier gain and releas-
ing the modular-plug microphone cable from the microphone.
Mounting brackets for affixing to equipment or other surfaces are
available as Shure RK6MB.
Features
?Modular-plug coil-cord easily changed for other radio sets or to
MODEL 590Treplace defective cable. A genuine universal replacement mi-
crophone
Hand-Held Transistorized Dynamic Microphone
?Convenient external gain adjustment for accommodating most
The Shure Model 590T is a universal replacement microphone
microphone input circuits
for over 40 mobile two-way radio sets. The microphone is compat-
?Frequency response from 200 to 4,000 Hz, tailored for voice
ible with a variety of five-conductor, shielded, coil-cord cables (sold
communications
separately), each of which has a locking, telephone-type modular
plug on the microphone end, and a choice of popular transmitter ?Built-in transistor amplifier powered by carbon microphone-type
input connectors on the other. One cable model provides only bare circuit (usable without transistor amplifier)
tinned leads on the transmitter input end so that the user can install ?Low sensitivity to hum pickup
the desired connector. Since cable damage is the major cause of
?Low susceptibility to radio-frequency interference
microphone failure, this makes the 590T quick and simple to repair.
?Rugged Million-Cycle Plus? leaf-type switch stands up under
For installations where input gain requires sensitivity level ad-severe environments and constant use
justment, the 590T has a convenient, externally accessible screw-
?Top-Talk Sound Channels? for clear voice input,
driver control. This eliminates the problem of non-adjustable
easy handling
microphone levels and the necessity for disassembling the micro-
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?High-impact ARMO-DUR case is ergonomically designed-
phone for adjustments. Restricting control access also prevents
stronger and lighter than die-cast metal, comfortable to the
accident-al changes common to external controls. The 590T can
touch in hot or cold weather
also be used in the non-amplified mode required by certain
?Rugged, reliable and dependable under all operating conditions
two-way radios.
?Long-life vinyl-rubber-jacketed coil cord available with plugs to
The 590T is a hand-held, transistorized, dynamic microphone
fit most popular two-way radios
designed for rugged and reliable operation. It has an omnidirec-
tional pickup pattern and provides extremely clear transmission, ?Hang-up button connection available for microphone hang-up
sensing
even in noisy environments. In addition to its clear, crisp response,
tailor-ed for voice-frequency communications, the 590T has ex-?Sturdy, convenient mounting button for attaching to equipment
tremely low sensitivity to hum pickup and low susceptibility to ra-or nearby surface using optional mounting bracket
dio-frequency interference.
In addition to its attractive, contemporary styling, designed to
blend with most radio designs and vehicle interiors, the 590T's
case features wraparound Top-Talk Sound Channels?. If the
microphone is grasped so that the front sound entry ports are cov-
ered, the sound channels extending around the top of the case per-
mit clear sound entry through the top.
?2004, Shure IncorporatedPrinted in U.S.A.
27A6001A (Rev. 2) |
ACEC
