Micron 700 Series - Micron Wireless by Audio Engineering

HIGH PERFORMANCE WIRELESS AUDIO
Wireless microphone systems for film & drama location
sound recording, ENG, EFP and outside broadcast units
• CLASS LEADING WIRELESS AUDIO SOLUTIONS
• HUGE CHOICE OF PRODUCTS, SYSTEMS AND CONFIGURATIONS
• AVAILABLE IN ALTERNATIVE RF BANDWIDTHS
• SWITCHABLE UP TO 100 FREQUENCIES
• RENOWNED AUDIO QUALITY, RF STABILITY & LONG-TERM RELIABILITY
• FLEXIBLE SINGLE AND MULTI-CHANNEL OPTIONS
by Audio Engineering
Setting industry standards for over 30 years,
Micron wireless microphone and communication systems are designed for the
optimum balance of performance, cost and
long-term reliability.
The 700 Series
combines the legendary Micron sound quality
with sophisticated electronic engineering and
rock-solid construction.
Transmitters and receivers are manufactured
from a high-strength one-piece extrusion, with
a rugged anodised finish, and all feature highquality connectors, with a unique design of
battery compartment that is simple to operate
by feel alone and accepts commonly available
alkaline batteries. Matching performance to
budget as precisely as possible, systems are
available with alternative switching bandwidths
up to 48MHz wide, and are switchable across
up to 100 frequencies - maximising operational
flexibility for sound recordists, ENG teams
and studio crews.
TX700
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Electronic modulation indicator
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+ve and -ve bias for electret
microphones
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External powering (+12 to +16V) with
TP series leads
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Powering for a wide range of
‘Phantom’ and ‘T’ condenser mics
Switchable bass-cut and phase-reverse
Transmitter battery level indication and
transmitted warning system
Pocket Transmitter
The Micron TX700’s sophisticated design is based around a low-noise VCO, with digitally controlled
PLL circuit, producing the highest possible quality of transmitted signal. The lightweight, yet rugged
aluminium extrusion case provides strength and durability, and is designed to withstand the heavy
demands of location use, while being comfortable to wear - ideal for situations where concealment is
important. The unique battery compartment design enables fast and easy battery replacement.
Adjustment of the audio level is straightforward, with the modulation
level control easily accessible through the TX700’s top panel, where
peak-reading LEDs (-10 and 0dB) indicate the audio level, allowing
repeatable levels to be set. The TX700 includes a soft audio limiting
circuit, with the threshold user-adjustable to give a wide range of
operation from fully automatic to no limiting action. The advanced
design enables the limiter to be used as an automatic level control,
without the pumping effect usually associated with audio AGC, and
it can also be used as a ‘distortionless’ emergency limiter to prevent
over-modulation.
Additional front-end protection is provided by a bass-cut switch,
which can reduce wind noise and counteract close-microphone
effects. The use of dedicated audio input cables enables the
transmitter to accept line and mic level signals, and to power a
variety of microphone types. A phase-reversal switch is flushmounted on the transmitter’s side panel, while a top-panel flush-mounted on/off switch removes the need
to disconnect microphones to turn off the transmitter. The TX700 also has a battery condition indicator,
and transmits an inaudible ‘low battery voltage’ warning to a matching Micron receiver.
Micron KAT66 Lavalier Microphone
• miniature omni-directional lavalier microphone
• film, television and theatre applications
• wide frequency response from electret condenser capsule
• minimal transmission of handling noise and clothing rustles
• soft housing and cable strain relief utilise single injection moulding
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TX703
Hand-Held Transmitter
With a choice of alternative capsules - the condenser options include Omni, Cardioid or HyperCardioid - the TX703 is designed to cater for the full range of applications, from ENG and studio
presentation, to live performance. The design is housed in a tough, machined aluminium body and
features the unique Micron noise reduction system, as well as the same digitally-controlled low-noise
VCO circuitry as the TX700, for the highest possible transmission quality.
An audio mute position is incorporated into the on-off switch, allowing the transmitter to remain powered
but with no audio being transmitted. A 3-position audio sensitivity switch enables optimisation of the
signal to noise ratio, and an electronic anti-popping filter affords protection against overload, even at
high sound pressure levels. Further front-end protection is provided by a 3-position bass-cut switch,
which may be used to reduce wind noise and counteract close-microphone effects. With its high signal
to noise ratio, the TX703 can faithfully accommodate a wide dynamic range, while the absence of a
soft limiter reduces the possibility of howl round and eliminates image shifting.
Equipped with a battery condition indicator, the TX703 also transmits an inaudible ‘low battery voltage’
warning, which activates a visual indicator on the appropriate Micron receiver. Used with a Micron 700
Series receiver, the TX703 can achieve a quality of sound virtually indistinguishable from a wired system.
P48
Phantom Boom
A battery-operated phantom power unit, the P48 Phantom Boom gives wireless freedom to sound
recordists and television crews when operating boom-mounted microphones. Providing a transformerbalanced connection, the Phantom Boom supplies a 48V feed to any phantom-powered microphone
and is compatible with any belt-pack style transmitter. The device is also suitable for any recording
situation where a remote phantom power feed is required.
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Highly efficient DC-to-DC converter for long battery life
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Ultra-quiet noise floor
Integral 1:1 transformer provides DC isolation for microphone and
transmitter
300kHz oscillator to ensure frequency is beyond audible spectrum
Dynamic or condenser capsules
Interchangeable condenser capsules
Wide dynamic range
Switchable 3-position gain sensitivity
Switchable 3-position low-cut switch
Built-in anti-popping filters
User-accessible ON-MUTE-OFF switch
Dual low-battery warning
SDR770
Small Diversity Receiver
Designed for use in situations where receiver size and weight is at a premium, the SDR770 receiver
maintains absolute integrity in terms of quality, performance and reliability. Small and light enough to
mount easily onto an ENG camcorder, or attach to a recorder, the SDR770 is a true space diversity
design, and is one of the smallest internally-powered units currently available.
Diversity designs offer dramatic improvements to dead-spot (signal dropout) problems compared to
conventional receivers, with two independent receiver sections fed
from separate antennas and a combining circuit that automatically
rejects the output from the section receiving the weakest signal.
The SDR770 offers excellent standards of RF performance - multiple RF
stages give outstanding sensitivity and selectivity, and the digitally
controlled PLL offers optimum mobile operation. The unique noise
reduction system provides trouble-free operation in low RF signal
situations, even in hostile RF environments.
Audio output and external powering are via a multipin connector, with
both mic and balanced high level available simultaneously. The
variable high-level signal can be used for feeding line inputs or
headphones. A 3-colour LED display on the top panel provides
continuous information on received signal strength, while a tri-colour
LED continuously monitors receiver battery condition. The SDR770
also has 2 additional green LEDs above each antenna socket, to
show which receiver is active.
Powering can be from an internal battery or external source - either via
the multipin connector using a +7.5 to +16V dc supply, or by
phantom power via the antenna connector.
SQDC
Shoulder Case
The Micron SQDC is a strong leather-cased system that can house up to four SDR770 diversity
receivers, with integral antenna distribution and power pack. Signal outputs are via four XLR
connectors, which provide balanced feeds at mic or high level.
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Very small, high quality receiver
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Mic and variable-line outputs
Multi-purpose design
ENG/EFP and location sound
Camera mounting options
Signal strength and battery voltage
indicator
Internal or external powering
DDH2
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Up to 4-channel operation from single
pair of antennas
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Transformer-balanced audio outputs
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Separate power switching for external
equipment
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Wide bandwidth audio
Receivers powered via antenna sockets
Single power source can drive DDH2,
mixer and recorder
Dual Diversity Housing
The Micron DDH2 is a dual-diversity housing
for SDR770 diversity receivers, and provides
maximum flexibility for sound recordists, small
studios and rental companies. Its dimensions
are compatible with most common location
mixing consoles, and it can be used singly as a
two-channel system or two units can be
cascaded together to form a portable fourchannel solution.
Designed to be driven by an external DC power
source, the DDH2 features integral antenna and
power distribution, with each SDR770 being
phantom powered via internal band-pass RF
distribution amplifiers.
MR700
Monitoring Receiver
The Monitoring Receiver brings the audio and
RF performance benefits of Micron designs to
production monitoring, providing stable, fatiguefree listening over long periods for programme
presenters, television studio personnel or
location crews.
The wide-bandwidth audio performance is
complemented by an ultra-low noise floor, and
the design is focused on achieving excellent
channel selectivity and blocking capacity. This
prevents interference from other RF equipment
operating in close physical proximity or on a
nearby frequency - for example, a presenter
wearing the receiver as well as a belt-pack
transmitter.
Output drives down to 8 Ohms
Long battery life
Fatigue-free long-term monitoring
Supplied with 16 frequencies
Switching bandwidths up to 24MHz
Choice of base-station transmitters
T E C H N I C A L
S P E C I F I C A T I O N
TX700
TX703
SDR770
470 to 870MHz
470 to 870MHz
470 to 870MHz
up to 100
up to 100
up to 100
up to 48MHz
up to 48MHz
up to 48MHz
Modulation system
F3EGN
F3EGN
F3EGN
Minimum channel spacing
200kHz
200kHz
200kHz
Maximum Deviation
75kHz
75kHz
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Reference Deviation
40kHz
40kHz
40kHz
Adjacent Channel Rejection
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>80dB
Muting Level
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1.0µV
50mW
10mW
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>100dB
>100dB
>100dB
80Hz to 20kHz ±1dB (nom.)
100 to 20kHz ±2dB
80Hz to 20kHz ±1dB (nom.)
1kHz tone <0.3% THD
<0.3% THD
<0.2%
Anti-Popping – corner frequency: 75Hz,
High pass, 50Hz
RF TRANSMISSION SYSTEM
Carrier range (to order)
Channels (depending upon model)
Switching range (depending upon model)
RF Output (ERP)
AUDIO
System S/N Ratio
Frequency Response
Distortion (@ ref. deviation level)
1kHz tone @ –10dB: 0.1% THD Typical
FILTERS
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slope: 24dB/octave
BASS CUT
LEVEL CONTROL
PHASE REVERSE
VOLUME/SIGNAL STRENGTH
LED INDICATORS
Fixed Bass Cut: –5dB at 50Hz (nom.)
3-position switch
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Additional 6dB cut at 60Hz
Flat, –3dB at 88Hz, –3dB at 125Hz
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Manual pre-set, 40dB in 8 steps
3-position switch: Loud (–15dB),
Mic level: –26dBV, Output impedance: 50
Normal 0dB, Quiet (+15dB)
Variable High level (max. output): 0dBV
Normal/Reverse
Normal/Reverse
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‘0’ light – at ALC threshold
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Signal strength: Top lamps green >50µV
‘–10’ light – at 10dB below ALC threshold
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Centre lamp green >5µV
(ALC system allows short transients to pass –
up to +6dB)
Lower lamps red >1µV
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Green active lights indicate which receiver
is contributing audio to output
FREQUENCY CONTROL
BATTERY CONDITION INDICATOR
Screwdriver pre-set
Screwdriver pre-set
Screwdriver pre-set
LED at <6.5V
LED at <6.5V
GREEN: >7.0V, AMBER: >6.5V,
RED: <6.5V, NO LIGHT: Battery Flat
Tx LOW BATTERY WARNING
Signal transmitted at <6.5V
Signal transmitted at <6.5V
Lower lamps flash when Tx battery <6.5V
IEC 6LR61 (MN1604) PP3 size
IEC 6LR61 (MN1604) PP3 size
IEC 6LR61 (MN1604) PP3 size
9V (alkaline or lithium)
9V (alkaline or lithium)
9V (alkaline or lithium)
65mA ±10%
60mA ±10%
90mA ±10%
Approx. 6 hours
Approx. 7 hours
Approx. 4 hours
7.5 to 16V dc (with ‘TP’ cables)
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7.5 to 16V dc (with ‘CP’ cables)
Width
63mm
38mm
62mm
Depth
22mm
38mm
22mm
Height
82mm
233mm
128mm
110 grams
240 grams
185 grams
Antenna
Antenna
2 Antennas
Instruction manual
Instruction manual
Instruction manual
BATTERY TYPE
Current consumption
Battery Life
External Power
DIMENSIONS
Weight
ACCESSORIES SUPPLIED
Belt Clip
by Audio Engineering
MICRON HOUSE
3 NEW ROAD
LONDON N8 8TA
UNITED KINGDOM
e-mail: sales@micronwireless.co.uk
TELEPHONE: +44 (0)20 8341 3500
Web site: www.micronwireless.co.uk
Audio Engineering Ltd reserves the right to change specifications without notice, as part of its policy of continuous product development.
FACSIMILE: +44 (0)20 8341 5100