Envoy
User Guide
Audio Radio Microphone Systems are noted for their
ease of use. If however you need advice or technical
support at any time please contact Audio Ltd.
All products come with free lifetime technical support,
and we are also always pleased to help users of our
equipment, whatever the application.
Audio Ltd,
Audio House
Progress Road
High Wycombe
Bucks, HP12 4JD
U.K.
Tel: +44 (0)1494 511711
Fax: +44 (0)1494 539600
email: info@audioltd.com
World Wide Web: http://www.audioltd.com
Copyright © 2001 Audio Limited
Part no: ENVOY/1
This guide was produced by
Human Computer Interface Limited,
http://www.interface.co.uk
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88
Contents
Introduction 5
Audio Limited ........................................................................ 5
The Envoy Range .................................................................. 5
Diversity reception ............................................................... 8
Selecting frequencies ......................................................... 9
SwitchiR Infra-Red Controller 10
Controls ................................................................................ 10
Using Switch
Technical specification ..................................................... 13
CXiR Diversity Receiver 14
Controls, displays, and connections ............................... 14
Setting up the CX
Technical specification ..................................................... 23
TX Blue Pocket Transmitter 24
Controls, displays, and connections ............................... 24
Setting up the TX Blue ....................................................... 25
Technical specification ..................................................... 28
HXiR Hand-Held Transmitter 29
iR ....................................................................
iR ............................................................
11
15
Controls, displays, and connections ............................... 29
Setting up the HX
Fitting the microphone capsule ....................................... 38
iR ............................................................
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88
32
Holding the HX
Technical specification ..................................................... 40
iR .................................................................
39
MXiR Receiver 42
Controls, displays, and connections ............................... 42
Setting up the MX
External powering .............................................................. 48
Technical specification ..................................................... 49
iR ...........................................................
43
AudiR Infra-Red Controller 50
Installing Aud
Running Aud
iR ...................................................................
iR ....................................................................
50
51
Troubleshooting 57
Cable wiring diagrams 60
Index 65
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CHAPTER
1
Introduction
This chapter gives a general introduction to radio
microphones, and shows how the products in the
Envoy Range interrelate.
Audio Limited
○○○○○○○○○○○○○○○○○○○○○○○○
Audio Limited has been designing and manufacturing
broadcast quality radio microphone systems since 1963,
and over this period our products have become the
choice of professional sound mixers around the world.
Our systems have acquired an acclaimed reputation for
reliability and transparent sound quality through our
commitment to designing products with maximum input
from the customer.
All of the products designed by us are a result of
listening to our customers.
The Envoy Range
○○○○○○○○○○○○○○○○○○○○○○○○
The Envoy Range of radio microphone system
components eliminates all mechanical switching by
using infra-red remote control. This allows you to
change settings, such as the frequency and audio level,
and check the status of the units, such as the battery
status and settings, even if they are not fully accessible,
such as when mounted in a camera.
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88
Transmitters
TX Blue
Introduction
iR
HX
Switch
<
u
n
e
M
K
O
iR
>
Camera
CX
iR
Envoy
Receivers
Envoy
MX
iR
6
88
Introduction
Infra-red control is provided in the Envoy Range of
receivers, and in the HX
Switch
The infra-red controller for the Envoy receivers and the
HX
iR
iR
transmitter.
iR
hand-held transmitter.
TX Blue
A multi-frequency synthesised UHF pocket transmitter,
for use on location with a range of microphones.
HX
iR
A multi-frequency infra-red controlled UHF hand-held
transmitter designed for use with a range of high-quality
interchangeable microphone capsules from the
Schoeps Colettte range.
CX
iR
A multi-frequency UHF infra-red controlled true diversity
receiver designed to interface with the internal slot in
several widely used camcorders. It can also be mounted
externally, and used as a portable receiver for
documentary and ENG purposes.
MX
iR
A multi-frequency UHF infra-red controlled non-diversity
receiver with internal battery compartment for portable
use in a wide range of applications.
The Envoy products are fully compatible with all
existing RMS 2020 and RMS 2000 Series products.
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88
Introduction
Aud
iR
The Envoy Range also includes AudiR, an application
designed to run on Palm OS compatible organisers.
Aud
iR
allows you to display the status of any Envoy
Range device on a single convenient Status screen, and
change any of the settings. In addition, it provides a Plot
Signal function, to plot the signal strength, and a Scan
function, to display a frequency scan:
In effect the Scan function acts like a portable spectrum
analyser dedicated to the receiver being addressed.
Diversity reception
○○○○○○○○○○○○○○○○○○○○○○○○
When electromagnetic waves are radiated by a moving
transmitter, the receiver picks up reflected signals from
surrounding structures as well as the directly radiated
signal. These reflected signals combine with the direct
signal, and in the case where the combining signals are
out of phase with each other, a drop-out or loss of signal
results.
To eliminate this cancellation effect Audio Limited
employ the true diversity technique in the CX
iR
receiver.
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88
Introduction
The CXiR receiver incorporates two separate receivers
fed by separate antennae. A comparator circuit
compares the RF levels from the two receivers ensuring
that the receiver will always switch to the strongest
signal. A noiseless switching circuit takes full
advantage of the accurate level detection to allow
switching as often as needed without noise or clicks.
The result is a reliable, drop-out free, broadcast-quality
audio signal indistinguishable from a line microphone.
Selecting frequencies
○○○○○○○○○○○○○○○○○○○○○○○○
The Envoy Range provides a choice of 32 pre-
programmed operating frequencies within a 24MHz
block, in the 470MHz to 1000MHz range. This allows you
to select a frequency appropriate to the location.
The Aud
conjunction with the CX
accurately locate any unused channels in a particular
location, thereby eliminating any guesswork.
The Switch
and change the frequency on the CX
receivers, and the HXiR transmitter.
iR
Palm OS application can be used in
iR
and MXiR receivers to
iR
infra-red controller allows you to check
iR
and MX
iR
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CHAPTER
2
SwitchiR Infra-Red
Controller
The SwitchiR is a compact custom-designed infra-
red controller for use with the Envoy Range. It
provides functions to allow you to read the status of
a device, or change its settings. In addition it
includes a convenient built-in 9V battery tester:
<
Menu
>
K
O
Controls
○○○○○○○○○○○○○○○○○○○○○○○○
Infra-red port
tester
_
FREQUENCY
Fr
+
MHz
V
V
Display
Scroll buttons
iR
9V battery
Menu/On button
OK button
Infra-red port
Point the infra-red port at the front of the Switch
directly at the infra-red port of the transmitter or
receiver, keeping the Switch
iR
within 30cm of the port.
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881088
SwitchiR Infra-red
Controller
Menu/On button
Turns on the SwitchiR . The display will initially show the
frequency screen:
FREQUENCY
Fr
MHz
a/v Scroll buttons
Allow you to scroll through the menus, or the selections
on the frequency, audio level, and LF cut screens.
OK button
Confirms the current selection.
Power saving feature
The SwitchiR will switch off if no buttons are pressed
within 30 seconds, to conserve battery life.
The Switch
menu button is kept pressed for more than 50 seconds;
for example while the Switch
iR
will also switch off automatically if the
iR
is in a pocket or bag.
Using SwitchiR
○○○○○○○○○○○○○○○○○○○○○○○○
Full instructions for using SwitchiR with each of the
products in the Envoy Range are given in the
appropriate chapter of this guide.
The following table summarises the Switch
and describes the additional functions included in
Switch
iR
iR
functions,
.
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881188
SwitchiR Infra-red
Controller
Menu Description
Fr Press OK to read the transmitter or receiver
frequency setting. Press OK again followed by
a or v to select a new frequency, and press OK
to transmit it to the unit.
AF Press OK to read the receiver or transmitter
audio level. Press OK again followed by a or v
to select a new audio level and press OK to
transmit it to the unit.
LF Cut Press OK to read the transmitter’s LF cut setting.
Press OK again followed by a or v to switch
the setting between on or off and press OK to
transmit it to the unit.
Batt Press OK to read the transmitter or receiver
battery level. For receivers the receiver battery
level alternates with a transmitter battery status
indicator: H (high), L (low), or F (fail).
Int Batt Displays the battery voltage of the Switch
internal battery. If this falls below 5.00V the
internal battery should be replaced.
9V Batt Allows you to test a 9V 6LR61 type battery by
holding it against the two metal terminals on the
side of the SwitchiR. A reverse polarity warning
is displayed if the battery is connected the
wrong way round.
Sn Press OK to read the serial number of a receiver
or transmitter and display it on the display. The
serial number consists of a six-digit prefix
followed by a two-digit suffix, and these are
flashed alternately on the display.
User ID Displays the unit’s user ID. You can edit the user
ID using the AudiR application.
iR
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881288
SwitchiR Infra-red
Controller
Menu Description
iR disable Press OK to disable the infra-red port on a
transmitter or receiver until power is
disconnected and reapplied.
Off Press OK to turn a transmitter off. Not available
for receivers.
Technical specification
○○○○○○○○○○○○○○○○○○○○○○○○
Size 65 x 30 x 11mm (17mm at
battery end)
Weight 40g including battery
Battery type 6V PX28L Lithium or
equivalent
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881388
CHAPTER
3
CXiR Diversity
Receiver
The CXiR is a multi-frequency UHF diversity
receiver, designed with a range of modular adapters
to allow it to be mounted internally in the latest
camcorders from Sony, Philips, and Ikegami.
Alternatively, a universal adapter fitted with the six-
pin Lemo socket is available allowing the CX
used externally with camcorders that do not provide
a built-in wireless microphone receiver slot. Also,
the CX
ENG receiver. All settings can be read or changed
via infra-red control using the Switch
iR
can be used as a portable documentary or
iR
iR
to be
.
Controls, displays, and connections
○○○○○○○○○○○○○○○○○○○○○○○○
Top panel
Antenna 1 Infra-red port
Antenna 2
(yellow) RX1
Low TX
Battery
(amber)
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88
No
Signal
(red)
RX2 (yellow)
CXiR Receiver
Antenna 1/Antenna 2
SMA sockets to which the antennae are connected.
Infra-red port
Receives commands from, and transmits status
information back to the Switch
iR
infra-red controller.
RX1/RX2 indicators (yellow)
Indicates which of the unit’s two built-in receivers is
active at any time.
Low TX Battery indicator (amber)
Indicates when the transmitter battery is low and needs
replacing.
No Signal indicator (red)
Indicates that no carrier signal is being received from
the transmitter, such as when the transmitter is
switched off or set to an incorrect frequency.
Setting up the CXiR
○○○○○○○○○○○○○○○○○○○○○○○○
To set up the CXiR in conjunction with a suitable
transmitter, such as the HX
• Fit the receiver into the camera.
• Connect the RX1 and RX2 antennae.
• Set the audio input selector switch to the appropriate
position on the camcorder.
• Select the operating frequency.
• Set the output level.
• Check the power status.
iR
or TX Blue:
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88
CXiR Receiver
• Check that one of the RX1 and RX2 indicators (yellow)
is illuminated, and that the No Signal indicator (red) is
not illuminated.
These steps are explained below:
Mounting the receiver into the camera
To mount the CXiR receiver in the wireless microphone
receiver slot on the camcorder:
• Remove the plate covering the receiver slot on the
camcorder.
• Fit the appropriate cover plate on the CX
Rubber faced
gasket
iR
receiver:
• Ensure that the plate is oriented correctly.
• Slide the cover plate gently towards the top of the
receiver:
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88
CXiR Receiver
• Ensure the receiver has the correct interface
connector for the camcorder you are using.
• Fit the receiver assembly into the slot and press it
gently into place until it is firmly seated.
• Slide the cover plate into position and secure it into
place with the screws provided.
Connecting the antennae
Connect the antennae to the SMA connectors marked
RX1 and RX2. Connect the straight antenna to one
socket and the right-angled antenna to the other socket.
Selecting the operating frequency
You can check or change the operating frequency of the
CX
iR
receiver via infra-red control using the SwitchiR.
To check the CX
iR
frequency:
• Press MENU.
The display shows:
FREQUENCY
Fr
MHz
• Align the front of the SwitchiR with the infra-red
window on the receiver and press OK.
Optimum operating range is between 5 and 15cm.
The Switch
iR
will display the
receiver frequency; for example:
FREQUENCY
854.900
Rx MHz
To change the CXiR frequency:
• Press OK again.
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88
CXiR Receiver
CHANNEL
01
CHANNEL
32
FREQUENCY
Rx MHz
857.950
Error
The display will alternately flash between frequency and
channel number.
For example:
• Press a or v to scroll through the 32 frequencies
read from the receiver until the required channel or
frequency is displayed.
For example:
• Align the front of the SwitchiR with the infra-red port
on the receiver and press OK.
If the command was received correctly the display will
show the new frequency.
For example:
Otherwise the display will show:
• Repeat the above steps if an error message is
displayed, moving the Switch
port.
iR
closer to the infra-red
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88
CXiR Receiver
Setting the output level
The CXiR should be set to the correct level as required
by the camcorder. The output level is attenuated in 1dB
steps over a 32dB range. The 0dB reference level is
-25dBu.
To check the CX
iR
output level:
• Press MENU.
• Press a once until
the display shows:
• Align the front of the Switch
iR
with the infra-red port
on the receiver and press OK.
The display will show the current
output level setting; for example:
To change the receiver output level:
• Press the OK button.
The AF level display will flash.
AF LEVEL
AF
TxRx
AF LEVEL
-07 dB
Rx
• Press the a or v button to step between the
available output level settings until the required
output level is displayed.
For example:
• Align the front of the SwitchiR with the infra-red port
on the receiver and press OK.
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88
AF LEVEL
-15 dB
TxRx
CXiR Receiver
AF LEVEL
TxRx
-15 dB
Error
TxRx
BAtt
Rx
11.9 v
Tx
H
If the command was received correctly the new level
will be displayed.
For example:
Otherwise the display will show:
• Repeat the above steps if an error message is
displayed, moving the Switch
port.
iR
closer to the infra-red
Checking the DC power status
To check the status of the receiver’s DC power:
• Press MENU.
• Press a three times until
the display shows:
• Align the front of the SwitchiR with the infra-red port
on the receiver and press OK.
The display will
show the DC voltage:
If the associated transmitter is on while the DC status is
being checked the display will alternate between the
receiver’s DC status and the received transmitter DC
status.
For example:
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88
CXiR Receiver
The transmitter status is shown as one of the following
options:
Option Description
H (high) Indicates good.
L (low) Indicates low. Replace as soon
as possible.
F (failed) Transmitter will not function
correctly.
Indicators during operation
The CXiR should switch between the RX1 and RX2
receivers for best reception, as indicated by the yellow
RX1 and RX2 indicators on the top of the unit.
The red No Signal indicator will be lit if the
corresponding HX
iR
or TX Blue transmitter is not
switched on, or is set to the incorrect frequency. The
amber Low TX Battery indicator will be lit if the TX
battery goes low.
External powering
A number of different cables and accessories are
available from Audio Limited to allow the CX
iR
receiver
to be externally powered.
The maximum external DC supply must not exceed 18V.
Exceeding this voltage will result in damage to the
receiver.
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88
CXiR Receiver
Audio Limited recommend the use of their regulated
cables to prevent damage to the CX
iR
.
Mounting options
The CXiR can be supplied already fitted with the
appropriate adapter for a specific camcorder.
Alternatively it can be supplied with a Lemo adapter for
applications where the CX
or a camcorder without an integral wireless microphone
receiver slot. In this case the receiver can be mounted
onto the camera with an appropriate bracket available
from Audio Limited.
Adapters are available separately to allow you to modify
a CX
iR
for use with a different camcorder. To change the
adapter unscrew the four screws on the side of the unit
iR
is to be used with a mixer,
at the base with a slotted screwdriver. Slide out the
adapter and replace it with the appropriate replacement
adapter:
Do not remove the screws at the base of the unit.
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88
CXiR Receiver
Technical specification
○○○○○○○○○○○○○○○○○○○○○○○○
Frequency range 470MHz–1000MHz
Number of frequencies 32 pre-programmed
Switching bandwidth 24MHz
Sensitivity -98dBm for 40dB SINAD
Frequency response 50Hz to 18kHz ±1dB
THD <0.2% typical
Signal to noise ratio 96dB to over 104dB
External power 7-18V DC
150-55mA
Antenna connector 2xSMA
Output connector 6 pin LEMO™
Interchangeable module 15 pin D-type (Sony)
25 pin D-type (Ikegami)
44 pin D-type (Philips)
Size 98 x 60 x 18mm
Weight 150g
Operating temperature -20C°to +55°C
range
Compliant to ETS 300422 EN 300445(CE)
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FCC
CHAPTER
4
TX Blue Pocket
Transmitter
The TX Blue transmitter is a small, lightweight,
battery-powered pocket transmitter for use with a
wide range of lapel microphones.
Controls, displays, and connections
○○○○○○○○○○○○○○○○○○○○○○○○
Top panel
Audio
input
Audio input
Allows a microphone or line-level input to be connected.
LF cut
Gives approximately 6dB LF cut at 50Hz, to assist in the
reduction of wind noise.
F1
LF cut
0
1
9
2
8
3
7
4
6
5
OffF2Overload
(red)
AntennaGainOn
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TX Blue Pocket
Transmitter
F1/F2
Selects between the two banks of 16 frequencies; see
Selecting the operating frequency
, page 17.
On/Off
Switches the power on or off. The microphone
connector includes a link which disconnects power
when the Lemo plug is removed, in which case the
switch can be left on.
Gain
Provides eight gain options when used with standard
microphones. 0 gives minimum gain, and each position
increases the gain by approximately 4dB giving a total
of 30dB of adjustment. Position 8 and 9 provide line-
level input to 600Ω impedance.
Overload indicator (red)
Indicates that the low distortion overload limiter is
operating.
Setting up the TX Blue
○○○○○○○○○○○○○○○○○○○○○○○
To set up the TX Blue in conjunction with a CX
• Fit the battery.
• Set the transmitter and receiver to the same
operating frequency.
• Connect the antenna.
• Switch on.
• Connect the microphone.
iR
:
25
882588
TX Blue Pocket
Transmitter
• Check that the receiver’s red No Signal indicator is
not illuminated.
• Set the microphone gain.
These steps are explained below:
Fitting the battery
To open the battery compartment press the release
buttons at each end of the battery tray and slide out the
tray. Insert a 9V 6LR61 type alkaline battery, observing
the polarity as shown on the inside of the tray, and
replace the tray. Do not use excessive force:
_
+_+
An electronic resettable fuse protects the transmitter
from reverse powering. A Low TX Battery indicator is
provided on the CX
iR
Receiver.
External powering
The transmitter can also be externally powered by a
number of different cables available from Audio Limited.
The external DC power must not exceed 12V or damage
will occur.
Selecting the operating frequency
Select the operating frequency you want to use from the
label on the side of the TX Blue. Set the F1/F2 switch to
F1 (first column of frequencies) or F2 (second column of
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88
TX Blue Pocket
Transmitter
frequencies). Rotate the switch inside the TX Blue
battery compartment using a small screwdriver to select
the frequency, 1 to 16.
Switch the TX Blue off and back on again to enable the
change in frequency.
Connecting the antenna
Connect the flexible antenna to the SMA connector.
Connecting the audio input
Connect the microphone or line-level input to the six-pin
Lemo connector. Both positive and negative bias
voltages are provided, enabling the majority of electret
lavalier microphones to be used with the TX Blue.
A number of different input cables are avilable from
Audio Limited to allow dynamic, T-powered, and 48V
phantom powered microphones to be used with the
transmitter.
Setting the microphone gain
The microphone gain control should be adjusted to suit
your particular requirements. Select the gain position
such that the Overload indicator does not illuminate
during normal speech.
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882788
TX Blue Pocket
Transmitter
Technical specification
○○○○○○○○○○○○○○○○○○○○○○○○
Frequency range 470MHz–1000MHz
Frequency stability Better than ETS 300–422
Number of frequencies 32 pre-programmed
Output power 50mW nominal
Gain control range 30dB in 8 steps, plus 2 steps for
600Ω line input
Maximum input level -6dBm (position 7)
+6dBm (position 8, 600Ω)
Frequency response 50Hz to 18kHz ±1dB
THD <0.1% at working levels
<0.3% at gain position 7 with
-6dBm input in overload
Battery 9V (IEC 6LR61) Alkaline
Battery life More than 6 hours
Size 87 x 60 x 21mm
Weight 115g
Operating temperature -20°C to +55°C
range
Compliant to ETS 300422 EN 300445(CE)
FCC
0885
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CHAPTER
5
HXiR Hand-Held
Transmitter
The HXiR is a multi-frequency UHF hand-held
transmitter for use with the RMS 2020 receivers, or
receivers from the Envoy Range. It is also fully
compatible with receivers from the RMS 2000
range. It provides 32 switchable frequencies, and
is configured entirely by infra-red control using the
Switch
microphone capsules from the Schoeps Colette
series, and features a robust ergonomic design
with a microphone suspension designed to
minimise handling noise.
iR
. The HXiR can be used with a range of
Controls, displays, and
connections
○○○○○○○○○○○○○○○○○○○○○○○
Windshield
Can be unscrewed to access the microphone capsule.
Microphone capsule
Any capsule from the Schoeps Colette range can be
used with the HX
capsules available, ranging from a hyper-cardioid to
an omni pattern. Three capsules are also available
from Audio Limited.
iR
transmitter. There are 18 different
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88
HXiR Hand-Held
Transmitter
Windshield
Microphone
capsule
Coloured
identification
ring
Transmitter
body
+
AA
Infra-red
port
On button
On/Overload
indicator
Battery
compartment
with integral
antenna
Coloured
identification
button
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88
HXiR Hand-Held
Transmitter
Identification ring and button
The HXiR is supplied with six colour identifying rings
and buttons to aid recognition in multi-channel use. The
ring is indented to prevent the HX
placed on a flat surface, such as a table.
iR
from rolling when
Infra-red port
Receives commands from and transmits status
information back to the Switch
iR
infra-red controller.
On button
Switches the microphone on.
To prevent the microphone from accidentally being
switched off during use the HX
off by using the Switch
the battery.
iR
iR
can only be switched
, or by briefly disconnecting
On/Overload indicator
The ring above the battery compartment glows red while
the HX
overload if the microphone experiences a loud signal.
iR
is switched on, but will flash off to indicate an
Battery compartment
Holds one AA 1.5V (LR6 type) alkaline battery.
Antenna
The transmitter antenna is integrated into the battery
compartment and therefore no external antenna is
required.
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88
HXiR Hand-Held
Transmitter
Setting up the HXiR
○○○○○○○○○○○○○○○○○○○○○○○○
To set up the HX
• Fit the battery.
• Switch on by pressing and holding the grey On button
below the infra-red port for one second.
• Check or select the operating frequency.
• Check or set the gain.
• Check or set the low frequency cut filter.
• Check the battery status.
These steps are explained below:
iR
:
Fitting the battery
Open the battery compartment by gripping the cover
and sliding it gently away from the body of the HX
the battery with the positive terminal uppermost and
iR
. Fit
close the battery cover until it clicks shut.
Do not twist or turn the battery cover.
Removing the battery
The battery can easily be removed by pushing a small
coin into the slot in the compartment beneath the
battery.
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88
HXiR Hand-Held
Transmitter
Switching on
To switch on press and hold the grey On button below
the infra-red port for one second until the ring above the
battery compartment glows red.
When not in use the power should be switched off using
the Switch
iR
, as described below. Alternatively the HX
iR
can be switched off by opening the battery
compartment and briefly disconnecting the battery.
Select the operating frequency
You can check or change the operating frequency of the
HX
iR
via infra-red control using the SwitchiR.
To check the frequency:
• Press MENU.
The display shows:
FREQUENCY
Fr
MHz
• Align the front of the SwitchiR with the infra-red port
on the HX
iR
and press OK.
The display shows the current
frequency; for example:
To change the frequency:
• Press OK.
The display will alternately flash between showing the
frequency and channel number.
33
88
FREQUENCY
854.900
Tx MHz
HXiR Hand-Held
CHANNEL
01
CHANNEL
32
FREQUENCY
Tx MHz
857.950
Error
Transmitter
For example:
• Press a or v to scroll through the 32 frequencies
read from the transmitter until the desired frequency
or channel is displayed.
For example:
• Point the SwitchiR at the infra-red port on the HX
and press OK.
If the command was received successfully the display
will show the new set frequency.
For example:
Otherwise it will show:
• Repeat the above steps if an error message is
displayed, moving the Switch
port.
iR
closer to the infra-red
iR
Setting the gain
The steps between 0-9 gain settings are approximately 3
to 4dB. Set the gain position so that the Overload
indicator does not flash off during normal operation.
To check the gain setting:
• Press MENU followed by a.
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88
HXiR Hand-Held
Transmitter
The display will indicate:
AF
TxRx
AF LEVEL
• Align the front of the SwitchiR with the infra-red port
of the HX
The display will show the current
transmitter gain setting:
iR
and press OK.
AF LEVEL
0
Tx
To change the gain setting:
• Press OK again.
The display will flash the level setting.
• Press a or v to step between gain settings 0-9 until
the required gain setting is displayed.
For example:
9
Tx
AF LEVEL
• Align the front of the SwitchiR with the infra-red port
on the transmitter and press OK.
If the command was received correctly the display will
show the new gain setting.
For example:
9
Tx
AF LEVEL
Otherwise the display shows:
Error
• Repeat the previous steps if an error message is
displayed, moving the Switch
iR
closer to the infra-
red port.
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88
HXiR Hand-Held
Tx
LF Cut
Tx
OFF
Tx
On
Transmitter
Setting the low frequency cut filter
The LF cut filter gives an approximately 10dB cut at 50Hz
to reduce handling and wind noise.
To check the status of the low frequency cut filter:
• Press MENU
• Press a twice until the
display shows:
• Align the front of the SwitchiR with the infra-red port
on the transmitter and press OK.
The current LF cut filter setting
is displayed; for example:
To change the filter setting:
• Press OK again.
The current setting will flash.
• Press a or v to toggle between ON or OFF until the
required setting is displayed.
• Align the front of the Switch
on the transmitter and press OK.
If the command was received successfully the new
setting will be displayed.
iR
with the infra-red port
For example:
36
88
HXiR Hand-Held
Transmitter
Otherwise the display will show:
Error
• Repeat the previous steps if an error message is
displayed, moving the Switch
port.
iR
closer to the infra-red
To check the battery status
• Press MENU.
• Press a three times until
the display shows:
• Align the front of the SwitchiR with the infra-red port
on the transmitter and press OK.
The display will show the
current battery status:
The battery level can also be checked from the receiver;
see the appropriate instructions for the receiver.
BAtt
TxRx
1.25v
Tx
Infra-red disable
You can protect the HXiR from an accidental change of
settings, such as in a live performance, by disabling the
infra-red port on the transmitter. This will prevent all
communication to the transmitter until the battery is
disconnected and reconnected.
To disable the infra-red port:
• Press MENU.
• Press v twice.
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88
The display
TxRx
Ir ?
Tx
Ir OFF
HXiR Hand-Held
Transmitter
will show:
• Align the front of the SwitchiR with the infra-red port
on the transmitter and press OK.
If the command was received
successfully the display will show:
Note: Once the infra-red port has been disabled, any
subsequent interrogation of the transmitter will give an
Error display; this is not a fault.
dISABLE
TxRx
Fitting the microphone capsule
○○○○○○○○○○○○○○○○○○○○○○○○
The HXiR transmitter uses high quality interchangeable
condensor capsules from the Schoeps Colette range.
The HX
and accessories in this range.
The capsule mounting has been specially designed by
Rycote™ to minimise the handling noise.
iR
is compatible with the full range of capsules
To fit a capsule
• Unscrew the metal windscreen from the top of the
transmitter.
• Screw the capsule into place taking care not to
cross-thread the capsule or over-tighten it.
• Replace the windscreen.
38
88
HXiR Hand-Held
Transmitter
Holding the HXiR
○○○○○○○○○○○○○○○○○○○○○○○○
The HXiR should be held above the illuminated On/
Overload indicator ring. This will enable maximum
power to be radiated from the integral antenna in the
battery compartment. Holding the HX
compartment will impair the range of the transmitter and
should be avoided.
The frequency, gain, and LF status setting will be
retained even if the battery is removed from the
transmitter.
An external foam windshield is available from Audio
Limited.
iR
over the battery
39
88
HXiR Hand-Held
Transmitter
Technical specification
○○○○○○○○○○○○○○○○○○○○○○○○
Frequency range 470MHz–1000MHz
Number of frequencies 32 pre-programmed
Switching bandwidth 24MHz
Output power 10mW nominal
Gain control range 40dB in 10 steps
Frequency response 50Hz to 18kHz ±1dB
excluding capsule
THD <0.2% typical
Battery 1.5V AA cell (IEC LR6)
Alkaline
Battery life Typically 2.5 hours with an
alkaline battery, 7 hours
with a lithium battery
Available capsules A02S bright omni
AC4 cardioid
AC4A cardioid for vocal use
Length 235mm
Diameter 35/22mm reducing to 18mm
at base
Weight 130g
Operating temperature -20°C to +55°C
range
40
88
HXiR Hand-Held
Transmitter
Compliant to ETS 300422 EN 300445(CE)
FCC
0885
41
88
CHAPTER
6
MXiR Receiver
The MXiR is a multi-frequency UHF non-diversity
receiver, with an integral battery compartment for
portable use with a mixer or camcorder. All settings
can be read or changed via infra-red control using
the Switch
iR
.
Controls, displays, and connections
○○○○○○○○○○○○○○○○○○○○○○○○
Top panel
Low Battery
RX (green)
TX (red)
Audio
output
Audio output
Provides balanced microphone level and adjustable
On/Off
No Signal (red)
Antenna
Infra-red
port
headphone outputs.
On/Off
Switches the power on or off. The output cable includes
a link which disconnects power when the Lemo plug is
removed, in which case the switch can be left on.
42
88
MXiR Receiver
Low Battery indicator
Illuminates red when the unit detects low battery power
in the transmitter, and green when the unit detects low
battery power in the receiver. The units should not be
used when a Low Battery indicator is illuminated as
poor operation may result.
No Signal indicator (red)
Illuminated when no carrier signal is being received,
such as when the transmitter is switched off or set to an
incorrect frequency.
Antenna
SMA socket to which the antenna is connected.
Infra-red port
Receives commands from and transmits status
information back to the Switch
iR
infra-red controller.
Setting up the MXiR
○○○○○○○○○○○○○○○○○○○○○○○○
To set up the MXiR in conjunction with a HXiR or TX Blue
transmitter:
• Fit the battery, or connect the unit to external power.
• Connect the antenna.
• Connect the audio output cable.
• Switch on.
• Set the transmitter and receiver to the same
operating frequency.
• Set the output level.
• Check the power status.
43
88
MXiR Receiver
FREQUENCY
MHz
Fr
• Check that the No Signal indicator is not illuminated,
and that the Low Battery indicator is not illuminated
red or green.
These steps are explained below:
Fitting the battery
To open the battery compartment, press the release
buttons at each end of the base of the unit and pull out
the battery tray. Insert a 9V 6LR61 type alkaline battery,
taking care to observe the polarity printed on the base
of the battery compartment:
_
+_+
Replace the battery compartment, taking care to align it
so that the contacts are aligned with the terminals
inside the receiver, and press it into place until the
release buttons click locked.
Selecting the frequency
To check the MXiR frequency:
• Press MENU.
The display shows:
• Align the front of the SwitchiR with the infra-red port
on the receiver and press OK.
44
88
MXiR Receiver
The SwitchiR will display the
receiver frequency; for example:
To change the MXiR frequency:
• Press OK again.
The display will alternately flash between frequency and
channel number.
For example:
FREQUENCY
854.900
Rx MHz
CHANNEL
01
• Press a or v to scroll through the 32 frequencies
read from the receiver until the required channel or
frequency is displayed.
For example:
CHANNEL
32
• Align the front of the SwitchiR with the infra-red port
on the receiver and press OK.
If the command was received correctly the display will
show the new frequency.
For example:
Otherwise the display will show:
FREQUENCY
857.950
Tx MHz
Error
• Repeat the above steps if an error message is
displayed, moving the Switch
iR
closer to the infra-red
port.
45
88
MXiR Receiver
AF LEVEL
TxRx
AF
AF LEVEL
Rx
-07 dB
AF LEVEL
TxRx
-15 dB
Setting the output level
The MXiR should be set to the correct level as required
by the other equipment. The output level can be
attenuated in 1dB steps over a 32dB range. The 0dB
reference level is -25dBu.
To check the MX
iR
output level:
• Press MENU.
• Press a once until
the display shows:
• Align the front of the SwitchiR with the infra-red port
on the receiver and press OK.
The display will show the current
output level; for example:
To change the receiver output level:
• Press the OK button.
The AF level display will flash.
• Press the a or v button to step between the
available output level settings until the required
output level is displayed.
For example:
• Align the front of the SwitchiR with the infra-red
potr‡on the receiver and press OK.
46
88
MXiR Receiver
If the command was received correctly the new level
will be displayed.
For example:
Otherwise the display will show:
-15 dB
TxRx
AF LEVEL
Error
• Repeat the above steps if an error message is
displayed, moving the Switch
port.
Headphone output level
The headphone output level operates in parallel with the
microphone output level. If the headphone monitoring is
utilised simultaneously with the microphone output
connected, then care should be taken not to adjust the
levels as the level control will effect both outputs.
iR
closer to the infra-red
The headphone output level is adjusted in the same
manner as the microphone output level using the
Switch
iR
.
Checking the power status
To check the status of the receiver’s DC power:
• Press MENU.
• Press a three times until
the display shows:
• Align the front of the SwitchiR with the infra-red port
on the receiver and press OK.
47
88
BAtt
TxRx
MXiR Receiver
Rx
9.0 v
Tx
H
The display will
show the DC voltage:
If the associated transmitter is on while the DC status is
being checked the display will alternate between the
receiver’s DC status and the received transmitter status.
For example:
The transmitter status is shown as one of the following
options:
Option Description
H (high) Indicates good.
L (low) Indicates low. Replace as soon
as possible.
F (failed) Transmitter will not function
correctly.
Indicators during correct operation
The red No Signal indicator will be lit if the
corresponding HX
iR
or TX Blue transmitter is not
switched on, or is set to the incorrect frequency.
External powering
○○○○○○○○○○○○○○○○○○○○○○○○
A number of different cables and accessories are
available from Audio Limited to allow the MX
to be externally powered, and also to allow the receiver
to be interfaced with various devices.
48
88
iR
receiver
MXiR Receiver
Technical specification
○○○○○○○○○○○○○○○○○○○○○○○○
Frequency range 470MHz–1000MHz
Number of frequencies 32 pre-programmed
Switching bandwidth 24MHz
Sensitivity -98dBm for 40dB SINAD
Frequency response 50Hz to 18kHz ±1dB
THD <0.2% typical
Signal to noise ratio 96dB to over 104dB
External power 7-12V DC
Battery 9V PP3 (IEC 6LR61) Alkaline
Antenna connector SMA
Output connector 6 pin LEMO™
Size 110 x 60 x 18mm
Weight 170g
Operating temperature -20°C to +55°C
range
Compliant to ETS 300422 EN 300445(CE)
FCC
49
88
CHAPTER
7
AudiR Infra-Red
Controller
This chapter describes AudiR, an application for the
Envoy Range, designed for use with any Palm OS
compatible organiser such as the Palm Vx. In
addition to all the functions provided by the
Switch
many advanced features, such as a frequency scan.
iR
infra-red controller, AudiR also provides
Installing AudiR
○○○○○○○○○○○○○○○○○○○○○○○○
AudiR is available for free download from the Audio
Limited Web site at http://www.audioltd.com/.
After downloading and if necessary unzipping the file
audir.prc, install the file by moving it to your Files to
Install folder, and then HotSyncing your Palm organiser
in the usual way.
50
88
AudiR Infra-Red
Controller
Running AudiR
○○○○○○○○○○○○○○○○○○○○○○○○
•Tap the AudiR icon in the Applications Launcher:
The AudiR Status screen will be displayed:
• Align the infra-red port on the Palm organiser with
the infra-red port on the iR transmitter or receiver,
and tap the Get Data button.
While the data is being received the following dialog
box is displayed:
The Status screen will then show the status information.
For a receiver or transmitter this gives a model type,
serial number, active channel, active frequency, PLL
status, and battery voltage.
51
88
AudiR Infra-Red
Controller
In addition, for a receiver it shows the transmitter
battery voltage, squelch status, signal strength, and
attenuation:
For a transmitter it also shows the microphone gain and
LF cut status:
•Tap the > to the right of the Active Freq, AF Atten, or
Mic Gain lines as a shortcut for displaying the
Frequencies or Edit screen.
To display a AudiR screen
•Tap the screen on the AudiR menu:
On each screen:
•Tap the Clear button to clear the data read from the
transmitter or receiver.
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88
AudiR Infra-Red
Controller
•Tap the Get Data button to read the settings from the
transmitter or receiver.
Frequencies
Displays a list of the frequencies and channel numbers
available on the device being programmed, with the
current frequency highlighted, and allows you to change
the frequency:
•Tap the frequency you want to use, and tap Update to
update the transmitter or receiver.
Device Info
Displays device specific information about the product
being addressed:
53
88
AudiR Infra-Red
Controller
Edit
Provides miscellaneous settings, depending on the
device:
User Notes: Allows you to enter a 16-character user ID,
which will be stored in the device for future reference.
Only numeric user IDs can be displayed using the
iR
Switch
AF Atten (receiver only): Allows you to adjust the AF
attenuation from 0dB to -32dB.
Mic Gain (transmitter only): Allows you to set the
microphone gain between 0 and 9, where each step
corresponds to approximately 3dB.
LF cut (transmitter only): Allows you to enable or disable
the low frequency cut.
In each case click the Update button to send the new
settings to the device.
Tx Off (transmitter only): Allows you to power off the
User Id function.
transmitter.
54
88
AudiR Infra-Red
Controller
IR Off: Allows you to disable the infra-red receiver.
Displays the following confirmation dialog box:
•Tap the Yes button to disable the iR communications
or the No button to cancel.
Once the infra-red has been disabled any further use of
the Switch
If the infra-red has been disabled the only way to
enable it is to interrupt the power to the device.
iR
will result in an error message.
Plot
Shows a continuous plot of the signal strength for each
of the two diversity receivers:
This allows you to see the effect of transmitter position
on the received signal strength for evaluating the range
and positioning receiver antennae to optimise system
performance.
55
88
AudiR Infra-Red
Controller
Scan
Plots a frequency scan to allow you to evaluate the
amount of interference on the chosen frequency:
56
88
CHAPTER
8
Troubleshooting
This chapter provides step-by-step troubleshooting
procedures for any combination of Envoy and iR
System products.
Experience has shown that the majority of problems are
due to bad batteries, faulty antennae, and faulty cables,
as these items are most susceptible to damage. Please
check these items first, and check that the LED
indicators are correct, before proceeding further.
Fault: No indicators illuminated
• Check the supply to the receiver.
• Check the receiver has the correct adapter for the
camera it is being used with, and that the CX
correctly orientated with the indicators facing the
rear of the camera.
• If the receiver is fitted into the receiver slot of the
camera, check that it is seated firmly in position.
Fault: No Signal indicator is on
• Check that the associated transmitter is switched on
and set to the correct frequency.
• Check that the antennae are not faulty.
iR
is
Fault: Low TX Battery indicator is on
• Check the condition of the battery in the transmitter.
You can use the Switch
battery.
iR
to test the 6LR61 type 9V
57
88
Troubleshooting
• If the CXiR receiver is being used with an HX2000
hand-held transmitter then this is not a fault as the
HX2000 transmitter does not send a battery condition
signal.
• Check that you are monitoring the transmitter that
was supplied with the receiver. Due to the unique
way in which the low transmitter battery signal is
transmitted, the system is factory set as a matched
pair, and therefore if the transmitters and receivers
are mixed this could result in an incorrect indication.
Fault: Switching indicators for RX1, RX2 staying on
one side
• Check the antennae on the receiver.
Fault: No audio
• Check that the No Signal indicator is off.
• Check that the transmitter gain position switch is set
correctly, in the range 0-7 for an electret/dynamic
microphone and 8-9 for the line-level input.
• Check the microphone on the transmitter.
• Check the output cable.
• Check the mixer/recorder settings.
Fault: Noise on audio
• Check that the input and output cable connectors are
latched in position.
• Check for a break or loose connection on the
microphone cable.
• Check the output cable.
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88
Troubleshooting
• Check that another transmitter is not set to the same
frequency.
Fault: Low range
• Check the antennae on the receiver and the
transmitter.
• Check for the presence of an interfering signal eg
analogue television transmission by listening to the
receiver with the associated transmitter switched off
– you should hear the vision ‘buzz’.
• Wideband interference will have the effect of
reducing the range, but without the usual interfering
effect such as noise.
• If possible, check the transmitter with another
receiver set to the same frequency, and vice versa, to
isolate the faulty unit.
• If several systems are being used simultaneously,
ensure that the frequency combination has been
chosen for intermodulation-free performance.
If the units are still not functioning correctly, please
contact your local distributor or Audio Ltd for further
assistance.
59
88
CHAPTER
9
Cable wiring
diagrams
Receiver/RK 2 output cable
(101-490)
○○○○○○○○○○○○○○○○○○○○○○○○
XLR 3-pin plug
12
3
viewed from solder side
5
64
31
2
Lemo 6-pin plug
viewed from solder side
60
88
Cable wiring diagrams
Receiver/RK 2 output and mixer
power cable (900-017)
○○○○○○○○○○○○○○○○○○○○○○○○
XLR 3-pin plug viewed from solder side
12
3
5
64
3
1
2
142
3
Lemo 6-pin plug
viewed from
solder side
Hirose 4-pin plug
viewed from
solder side
Transmitter line/microphone input
cable (900-018)
○○○○○○○○○○○○○○○○○○○○○○○○
3
5
64
31
2
XLR 3-pin socket
12
viewed from solder side
Lemo 6-pin plug
viewed from solder side
61
88
Cable wiring diagrams
Headphone output cable (900-063)
○○○○○○○○○○○○○○○○○○○○○○○○
0.25" stereo
jack socket
5
4
6
31
2
Lemo 6-pin plug
viewed from solder side
Receiver/RK 2 output and Betacam
power cable (900-101)
○○○○○○○○○○○○○○○○○○○○○○○○
XLR 3-pin plug viewed from solder side
Voltage
Regulator
12
3
5
64
3
1
2
Lemo 6-pin plug
viewed from
solder side
12V
142
3
Hirose 4-pin plug
viewed from
solder side
62
88
Cable wiring diagrams
Receiver output regulated DC and
30dB pad for Betacam (900-140)
○○○○○○○○○○○○○○○○○○○○○○○○
XLR 3-pin plug viewed from solder side
12V
Regulated
12
3
30dB
PAD
5
64
3
1
2
Lemo 6-pin plug
viewed from
solder side
142
3
Hirose 4-pin plug
viewed from
solder side
63
88
Cable wiring diagrams
Microphone wiring for TX Blue
○○○○○○○○○○○○○○○○○○○○○○○○
Beyer MCE5
inner screen n/c
LIVE
GREEN
2
Sennheiser MKE2-R
RED
2
Tram TR50
+ve power
RED
2
Sony ECM77, ECM55
WHITE
1
3
OUTER
6
SCREEN
5
4
RED
1
6
SCREEN
5
2
3
4
Tram TR50
-ve power
BLACK
1
3
BLUE &
6
SCREEN
5
4
1
2
3
RED &
6
SCREEN
5
4
Sanken COS-11pt
1
3
BLACK &
6
SCREEN
5
4
BLACK
1
2
3
WHITE &
6
SCREEN
5
4
BLUE
1
RED RED
6
SCREEN
5
2
3
4
VT500, VT506
1
RED SCREEN
6
2
3
4
Plugs are viewed from the solder side
64
88
Countryman EMWAKG CK 97-0
6
5
4
GREEN
GREEN &
SCREEN
1
2
3
µ47 CAPACITOR
5
Index
A
AudiR infra-red controller 8, 50
installing 50
running 51
selecting a screen 52
C
cable wiring diagrams 60
CX
iR
diversity receiver 7, 14
checking DC power status 20
connecting the antennae 17
controls, displays, and connections 14
external powering 21
indicators 21
mounting into the camera 16
mounting options 22
selecting the operating frequency 17
setting the output level 19
technical specification 23
D
diversity reception 8
65
88
Index
F
frequencies, selecting 9
H
HXiR hand-held transmitter 7, 29
checking battery status 37
fitting the battery 32
fitting the microphone capsule 38
infra-red disable 37
selecting the operating frequency 33
setting the gain 34
setting the low frequency cut filter 36
switching on 33
technical specification 40
M
MXiR receiver 7, 42
checking power status 47
controls, displays, and connections 42
external powering 48
fitting the battery 44
headphone output level 47
indicators 48
selecting the frequency 44
setting the output level 46
technical specification 49
66
88
Index
S
SwitchiR infra-red controller 7, 10
menus 12, 13
technical specification 13
using 11
T
technical specifications
CX
iR
diversity receiver 23
HX
iR
hand-held transmitter 40
MX
iR
receiver 49
Switch
TX Blue pocket transmitter 28
troubleshooting 57
TX Blue pocket transmitter 7, 24
connecting the antenna 27
connecting the audio input 27
controls, displays, and connections 24
external powering 26
fitting the battery 26
selecting the operating frequency 26
setting the microphone gain 27
technical specification 28
iR
13
wiring diagrams 60
W
67
88
EC Declaration of Conformity
to R&TTE Directive 1999/5/EC
○○○○○○○○○○○○○○○○○○○○○○○○
Manufacturer: Audio Ltd
Audio House
Progress Road
High Wycombe
HP12 4JD
U.K.
Product/Apparatus: Hand held radio microphone transmitter
Type Number: HX
Variants include: None
iR
Declaration
I declare that above product conforms to all the applicable
requirements of EU Directive 1999/5/EC and is CE-marked
accordingly:
Article 3.1a: EN60950 used to show compliance with LDV,
73/23/EEC.
Article 3.1b: ETS 300 445 used to show compliance with
EMC Directive, 89/336/EEC.
Article 3.2: Conformity was assessed via Annex IV, using
a Technical Construction File examined by
Notified Body 0885, Cambridge Test &
Measurements Ltd. EN 300 422 used to show
compliance
Signature: ________________________
Name: ________________________
Title: ________________________
Date: ________________________
Kishore Patel
Managing Director
02.04.2001
68
88
EC Declaration of Conformity
to R&TTE Directive 1999/5/EC
○○○○○○○○○○○○○○○○○○○○○○○○
Manufacturer: Audio Ltd
Audio House
Progress Road
High Wycombe
HP12 4JD
U.K.
Product/Apparatus: Pocket radio microphone transmitter
Type Number: TX2020
Variants include: TXBlue
Declaration
I declare that above product conforms to all the applicable
requirements of EU Directive 1999/5/EC and is CE-marked
accordingly:
Article 3.1a: EN60950 used to show compliance with LDV, 73/
23/EEC.
Article 3.1b: ETS 300 445 used to show compliance with EMC
Directive, 89/336/EEC.
Article 3.2: Conformity was assessed via Annex IV, using a
Technical Construction File examined by
Notified Body 0885, Cambridge Test &
Measurements Ltd. EN 300 422 used to show
compliance
Signature: ________________________
Name: ________________________
Title: ________________________
Date: ________________________
Kishore Patel
Managing Director
02.04.2001
69
88
70
88
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