Sennheiser SKM 300 G3 User manual

SKM 300
Instruction manual

SKM 300 G3 | 1
Contents
Contents
Important safety instructions............................................2
The SKM 300 G3 radio microphone family ......................3
The frequency bank system .........................................3
Areas of application .......................................................4
Delivery includes...................................................................5
Product overview..................................................................6
Overview of the SKM 300 G3 radio microphone.......6
Overview of the displays...............................................7
Putting the radio microphone into operation.................8
Inserting and changing the batteries/accupack ......8
Charging the accupack...................................................9
Changing the microphone head................................ 10
Changing the color-coded protection ring.............. 11
Using the radio microphone ............................................ 12
Switching the radio microphone on/off.................. 12
Deactivating the lock mode temporarily ................ 14
Muting the audio signal or deactivating
the RF signal ................................................................. 15
Selecting a standard display ..................................... 17
Using the operating menu ............................................... 18
The buttons................................................................... 18
Overview of the operating menu.............................. 18
Working with the operating menu .......................... 20
Adjusting settings via the operating menu ................. 22
The main menu “Menu” ............................................. 22
The extended menu “Advanced Menu” .................. 24
Synchronizing the radio microphone with
a receiver ............................................................................. 29
Synchronizing the radio microphone
with the receiver – individual operation................. 29
Synchronizing radio microphones
with receivers – multi-channel operation............... 29
Cleaning and maintaining the radio microphone........ 30
Recommendations and tips............................................. 31
If a problem occurs ... ........................................................ 32
Specifications...................................................................... 33
Polar diagrams and frequency response curves
of the microphone heads ........................................... 34
Manufacturer Declarations .............................................. 36
An animated instruction manual can be
viewed on the SKM 300 G3 product page
on our website at www.sennheiser.com.

2 | SKM 300 G3
Important safety instructions
Important safety instructions
• Read this instruction manual.
• Keep this instruction manual. Always include this
instruction manual when passing the product on to
third parties.
• Heed all warnings and follow all instructions.
• Clean the product only with a slightly damp cloth.
• Do not place the product near any heat sources such
as radiators, stoves, or other devices (including
amplifiers) that produce heat.
• Only use attachments/accessories specified by
Sennheiser.
• Refer all servicing to qualified service personnel.
Servicing is required if the device has been damaged
in any way, liquid has been spilled, objects have
fallen inside, the product has been exposed to rain or
moisture, does not operate properly or has been
dropped.
• WARNING: To reduce the risk of short circuits, do not
use the product near water and do not expose it to
rain or moisture.
Intended use
Intended use of the ew 300 G3 series products includes:
• having read this instruction manual, especially the
chapter “Important safety instructions” above on
this page,
• using the products within the operating conditions
and limitations described in this instruction manual.
“Improper use” means using the products other than
as described in these instructions, or under operating
conditions which differ from those described herein.

SKM 300 G3 | 3
The SKM 300 G3 radio microphone family
The SKM 300 G3 radio
microphone family
The SKM 300 G3 radio microphone is part of the
evolution wireless series generation 3 (ew G3).
This series offers high-quality state-of-the-art RF
transmission systems with a high level of operational
reliability and ease of use. Transmitters and receivers
permit wireless transmission with studio-quality sound.
Features of the evolution wireless 300 G3 series:
• Optimized PLL synthesizer and microprocessor
technology
•HDX noise reduction system
• Pilot tone squelch control
• True diversity technology
• Switching bandwidth of 42 MHz
• Increased immunity to intermodulation and
interferences in multi-channel operation
• Interchangeable microphone heads, allowing the use
of different pick-up patterns and sensitivities
• Extended muting function due to MIC button on the
radio microphone
The frequency bank system
The radio microphone is available in 6 UHF frequency
ranges with 1,680 transmission frequencies per
frequency range:
Each frequency range (A–E, G) offers 26 frequency
banks with up to 24 channels each:
Each of the channels in the frequency banks “1” to “20”
has been factory-preset to a fixed transmission
frequency (frequency preset).
516 – 558 566 – 608 626 – 668 734 – 776 780 – 822 823 – 865
Range A: Range G: Range B: Range C: Range D: Range E:
Frequency bank 1 ... 20
Frequency bank U1 ... U6
Channel 24 – frequency preset
Channel 1– frequency preset
Channel 2– frequency preset
Channel 24 – freely selectable frequency
Channel 1– freely selectable frequency
Channel 2– freely selectable frequency

4 | SKM 300 G3
The SKM 300 G3 radio microphone family
The factory-preset frequencies within one frequency
bank are intermodulation-free. These frequencies
cannot be changed.
For an overview of the frequency presets, please refer to
the supplied frequency information sheet. Updated
versions of the frequency information sheet can
be downloaded from the SKM 300 G3 product page on
our website at www.sennheiser.com.
The frequency banks “U1” to “U6” allow you to freely
select and store transmission frequencies. It might be
that these transmission frequencies are not
intermodulation-free.
Areas of application
The radio microphone family can be combined with the
EM 300 G3 rack-mount receiver.
The EM 300 G3 rack-mount receiver is available in the
same UHF frequency ranges and is equipped with the
same frequency bank system with factory-preset
frequencies. This has the advantage that:
• a transmission system is ready for immediate use
after switch-on,
• several transmission systems can be operated
simultaneously on the preset frequencies without
causing intermodulation interference.
Overview of the microphone heads:
The name and pick-up pattern of the microphone head
are printed on the sound inlet basket of the radio
microphone.
Radio
microphone
Interchangeable
microphone heads Receiver
SKM 300-835 G3*
*The name of the radio microphone is a combination of the name of
the transmitter and the name of the microphone head:
Transmitter + Microphone head =Name of the radio microphone
SKM 300 + MMD 835-1 =SKM 300-835 G3
MMD 835-1 EM 300 G3
SKM 300-845 G3*MMD 845-1
SKM 300-865 G3*MMD 865-1
Microphone head Type Pick-up pattern
MMD 835-1 dynamic – cardioid
MMD 845-1 dynamic – super-cardioid
MMD 865-1 condenser – super-cardioid
806.125
SKM300
ew300 G3
B.Ch:01.01
PEAK
MUTE
EQ
+ 12dB
-10
040
30
20
10
-20
-30
-40
AF
RF
MHz
P

SKM 300 G3 | 5
Delivery includes
Delivery includes
The packaging contains the following items:
1 SKM 300 G3 radio microphone incl.
microphone head
2 AA size batteries, 1.5 V
1microphoneclamp
1 instruction manual
1frequencyinformationsheet
1 supplement “Framework requirements and
restrictions on frequency usage”
A list of accessories can be found on the
SKM 300 G3 product page at www.sennheiser.com.
For information on suppliers, contact your local
Sennheiser partner:
www.sennheiser.com > “Service & Support”.

6 | SKM 300 G3
Product overview
Product overview
Overview of the SKM 300 G3
radio microphone
1Microphone head (interchangeable)
2Name and pick-up pattern of the microphone head
(not visible here, see page 4)
3MIC button
4Body of radio microphone
5Battery compartment (not visible from outside)
6Display panel, backlit in orange
7Infra-red interface
8Antenna
9Color-coded protection ring;
available in different colors
0Operation and battery status indicator, red LED
(lit = ON/flashing = LOW BATTERY)
ACharging contacts
BMulti-function switch:
(DOWN),  (UP) and (SET)
CON/OFF button
with ESC function (cancel)
3
9
4
5
678
C
A
A
0
A
9
B
2
1

SKM 300 G3 | 7
Product overview
Overview of the displays
After switch-on, the radio microphone displays the
standard display “Frequency/Name”. For further
illustrations and examples of the different standard
displays, refer to page 17.
The display backlighting is automatically reduced after
approx. 20 seconds.
Display Meaning
1Audio level “AF”Modulation of the radio
microphone with peak hold
function
2Frequency Current transmission frequency
3Name User selectable name
4Transmission
icon
RF signal is being transmitted
5Lock mode icon Lock mode is activated
6“P”(pilot) Pilot tone transmission is
activated
7“MUTE”Audio signal is muted/
RF signal is deactivated
8Battery status Charge status:
approx. 100%
approx. 70%
approx. 30%
critical charge status,
the red LOW BATTERY
LED 0is flashing:
MHz
ew300 G3
MUTE
P
AF
햳 햴햲
햶
햵
햹햸햷
806.125
0

8 | SKM 300 G3
Putting the radio microphone into operation
Putting the radio microphone
into operation
Inserting and changing the batteries/
accupack
For powering the radio microphone, you can either
use two 1.5 V AA size batteries or the rechargeable
Sennheiser BA 2015 accupack (optional accessory).
Unscrew the lower part of the radio microphone
from the radio microphone’s body 4by turning it
counterclockwise.
Slide back the lower part of the radio microphone as
far as it will go.
Open the battery compartment cover D.
CAUTION
Danger of damage to the radio microphone!
When unscrewing the radio microphone during
operation while pressing the MIC button 3at the same
time, the radio microphone can be damaged.
Hold the radio microphone’s body 4as shown below
to make sure that the MIC button 3is not
accidentally pressed.
When unscrewing the radio microphone during
operation, the muting function is automatically
activated. “MUTE” appears on the display panel.
When screwing the lower part of the radio
microphone back to the radio microphone’s body,
the muting function is deactivated and “MUTE”
disappears from the display panel.
4
3
D

SKM 300 G3 | 9
Putting the radio microphone into operation
Insert the batteries or the BA 2015 accupack as
shown on the battery compartment cover. Observe
correct polarity when inserting the batteries/
accupack.
Close the battery compartment cover D.
Push the battery compartment into the radio
microphone’s body.
Screw the lower part of the radio microphone back to
the radio microphone’s body 4.
Charging the accupack
To charge the radio microphone with the inserted
BA 2015 accupack (optional accessory):
Insert the radio microphone into the LA 2 charging
adapter (optional accessory) until it locks into place.
Plug the LA 2 charging adapter with the inserted
radio microphone into the L 2015 charger (optional
accessory).
The LA 2 charging adapter and L 2015 charger can
only charge the radio microphone with the
BA 2015 accupack installed. Standard batteries
(primary cells) or individual rechargeable battery
cells cannot be charged in this way.
D
D
L 2015
LA 2

10 | SKM 300 G3
Putting the radio microphone into operation
Changing the microphone head
The microphone head 1easy to change.
Unscrew the microphone head 1.
Screw the desired microphone head to the radio
microphone.
The radio microphone is operational again.
Do not touch the contacts of the radio microphone
nor the contacts of the microphone head 1. The
contacts can become dirty or damaged if touched.
When unscrewing the microphone head 1during
operation, the muting function is automatically
activated. “MUTE” appears on the display panel.
When screwing the microphone head 1back to
the radio microphone’s body, the muting function
is deactivated and “MUTE” disappears from the
display panel.
1

SKM 300 G3 | 11
Putting the radio microphone into operation
Changing the color-coded protection ring
The color-coded protection ring 9prevents the multi-
function switch from accidental operation.
Protection rings 9in different colors are available as
accessories. The protection rings allow you to clearly
identify each radio microphone.
Remove the color-coded protection ring 9as shown.
Put on a new protection ring as shown.
9 9
99

12 | SKM 300 G3
Using the radio microphone
Using the radio microphone
To establish a transmission link, proceed as follows:
1. Switch the radio microphone on (see next section).
2. Switch the receiver on (see the receiver’s instruction
manual).
The transmission link is established and the display
backlighting of the receiver changes from red to
orange.
If you cannot establish a transmission link between
transmitter and receiver, read the chapter
“Synchronizing the radio microphone with a receiver”
on page 29.
Switching the radio microphone on/off
CAUTION
Reduced transmission power!
If you touch the antenna 8of the radio microphone,
the transmission power will be considerably reduced!
Only hold the radio microphone by its body.
It is vital to observe the notes on frequency
selection on page 29.
8
C
0
3

SKM 300 G3 | 13
Using the radio microphone
To switch the radio microphone on (online operation):
To switch the radio microphone off:
If necessary, deactivate the lock mode (see next
chapter).
To switch the radio microphone on and to deactivate the
RF signal on switch-on (offline operation):
To activate the RF signal:
Briefly press the ON/OFF button C.
The red ON LED 0lights up. The “Frequency/
Name” standard display appears on the
display panel. The backlighting of the
MIC button 3depends on the setting in the
“MIC LED” menu item (see page 26). The
transmission icon 4is displayed. The radio
microphone transmits an RF signal.
You can switch the radio microphone on and
deactivate the RF signal on switch-on. For more
information, see below.
Press the ON/OFF button Cuntil “OFF”
appears on the display panel. The red
ON LED 0and the MIC button 3go off. The
display panel turns off.
When in the operating menu, pressing the ON/
OFF button Cwill cancel your entry (ESC function)
and return you to the current standard display.
Keep the ON/OFF button pressed until “RF
Mute Off?” appears on the display panel.
Move the multi-function switch.
“RF Mute On?” appears on the display panel.
Press the multi-function switch.
The transmission frequency is displayed
but the radio microphone does not transmit
an RF signal. The transmission icon 4is
not displayed. The backlighting of the
MIC button 3depends on the setting in the
“MIC LED” menu item (see page 26). When
the pilot tone function is activated on both
radio microphone and receiver, “RF Mute”
appears on the receiver’s display panel.
Use this function to save battery power or to
prepare a radio microphone for use during live
operation without causing interference to existing
transmission links.
Briefly press the ON/OFF button C.
“RF Mute On?” appears on the display panel.
Move the multi-function switch.
“RF Mute Off?” appears on the display panel.
Press the multi-function switch.
The transmission icon 4is displayed again.
ON/OFF
ON/OFF
ON/OFF
MHz
806.125
ew300 G3
MUTE
P
AF
햵
ON/OFF

14 | SKM 300 G3
Using the radio microphone
Deactivating the lock mode temporarily
You can activate or deactivate the automatic lock mode
via the “Auto Lock” menu item (see page 24).
If the lock mode is activated, you have to temporarily
deactivate it in order to be able to operate the radio
microphone:
The lock mode icon 5flashes prior to the lock mode
being activated again.
Press the multi-function switch.
“Locked” appears on the display panel.
Move the multi-function switch.
“Unlock?” appears on the display panel.
Press the multi-function switch.
The lock mode is temporarily deactivated.
How you are using the radio microphone
determines how long the lock mode remains
deactivated:
When you are in the operating menu
The lock mode remains deactivated until
you exit the operating menu.
When one of the standard displays is
shown
The lock mode is automatically activated
after 10 seconds.
MHz
806.125
ew300 G3
MUTE
P
AF
햶

SKM 300 G3 | 15
Using the radio microphone
Muting the audio signal or deactivating
the RF signal
The MIC button 3allows you to mute the audio signal
or to deactivate the RF signal.
Via the “Mute Mode” menu item, you can set the
desired function of the MIC button 3:
From the “Mute Mode” menu item, select the desired
setting (see page 25).
Exit the operating menu.
Briefly press the MIC button 3or keep it pressed.
The radio microphone reacts as indicated in the table.
Setting MIC button 3... Function
“AF On/
Off”
Press briefly Mutes the audio signal
permanently
Unmutes the audio
signal permanently
“RF On/
Off”
Press briefly Deactivates the RF
signal
(offline operation)
Activates the RF signal
(online operation)
“Push To
Mute”
Keep pressed Mutes the audio signal
temporarily (cough
function)
“Push To
Talk”*
*If you select “Push To Talk”, the radio microphone will be
permanently muted until until you press the MIC button.
Keep pressed Unmutes the audio
signal temporarily
(speech function)
“Disabled”No function
The current state of the muting function or the
RF signal is displayed on the radio microphone’s
display panel (see next section).
An additional display appears on the receiver’s
display panel
• when the pilot tone function is activated on
both radio microphone and receiver and,
in addition,
• this display has been activated via the
receiver’s “Warnings” menu item (see the
receiver’s instruction manual).
3

16 | SKM 300 G3
Using the radio microphone
The backlighting of the MIC button 3depends on
the setting in the “MIC LED” menu item (see
page 26).
Audio signal is muted
Radio microphone’s
display panel:
“MUTE” 7is displayed,
transmission icon 4is
displayed
Receiver’s display panel: “TX Mute” is displayed*
*only when activated on the receiver (see above)
Audio signal is activated (muting is deactivated)
Radio microphone’s
display panel:
“MUTE” 7is not displayed,
transmission icon 4is
displayed
Receiver’s display panel: “TX Mute” is not displayed
RF signal is deactivated
Radio microphone’s
display panel:
Transmission icon 4is not
displayed,
“MUTE” 7is displayed
Receiver’s display panel: “RF Mute” is displayed*
*only when activated on the receiver (see above)
RF signal is activated
Radio microphone’s
display panel:
Transmission icon 4is
displayed,
“MUTE” 7is not displayed
Receiver’s display panel: “RF Mute” is not displayed
You can also deactivate the RF signal on switch-on.
For more information, refer to the chapter
“Switching the radio microphone on/off” on
page 13.
Using the ON/OFF button, you can also activate/
deactivate the RF signal during operation. To do so,
briefly press the ON/OFF button and proceed as
described on page 13.
MHz
806.125
ew300 G3
MUTE
P
AF
햸
햵
3

SKM 300 G3 | 17
Using the radio microphone
Selecting a standard display
Move the multi-function switch to select a
standard display.
Contents of the display Selectable standard display
“Frequency/Name”
“Channel/Frequency”
“Name/Channel”
ew300 G3
MHz
806.125
MUTE
P
AF
MHz
806.125
B.Ch: 01.01
MUTE
P
AF
B.Ch: 01.01
MUTE
P
AF
ew300 G3

18 | SKM 300 G3
Using the operating menu
Using the operating menu
A special feature of the Sennheiser evolution wireless
ew 300 G3 series is the consistent, intuitive menu
structure of transmitters and receivers. As a result,
adjustments to the settings can be made quickly – even
in stressful situations, for example on stage or during a
live show or presentation.
The buttons
Overview of the operating menu
Make use of the possibility to adjust settings
via the operating menu of the receiver and
to transfer these settings to the radio
microphone.
For more information on how to transfer
settings to the radio microphone, refer to the
instruction manual of the receiver. The relevant
information is marked with the sync icon.
Button Function of the button
Press the
ON/OFF
button
• Switches the radio microphone on and
off
• Cancels the entry and returns to the
current standard display (ESC function)
• Activates/deactivates the RF signal
(special function, see page 13)
Press the
multi-
function
switch
• Changes from the current standard
display to the operating menu
• Calls up a menu item
• Enters a submenu
• Stores the settings and returns to the
operating menu
Move the
multi-
function
switch
• Selects a standard display
• Changes to the next/previous menu
item
• Changes the setting of a menu item
ON/OFF
Main menu
“Menu”
Sensitivity
Frequency Preset
Name
Auto Lock
Advanced
Exit
Tune
Mute Mode
MIC LED
RF Power
Pilot Tone
LCD Contrast
Reset
Software Revision
Exit
Extended menu
“Advanced Menu”

SKM 300 G3 | 19
Using the operating menu
Display Function of the menu item
Main menu “Menu”
Sensitivity Adjusts the sensitivity “AF”
(see page 22)
Frequency Preset Changes the frequency bank and
the channel (see page 23)
Name Enters a name (see page 23)
Auto Lock Activates/deactivates the
automatic lock mode
(see page 24)
Advanced Calls up the extended menu
“Advanced Menu” (see page 24)
Exit Exits the operating menu and
returns to the current standard
display
Extended menu “Advanced Menu”
Tune Sets the transmission frequencies
for the frequency banks “U1” to
“U6” (see page 24)
Sets a frequency bank, a channel
and a transmission frequency
(frequency banks “U1” to “U6”
(see page 24))
Mute Mode Sets the mode for the MIC
button 3(see page 25)
MIC LED Adjusts the backlighting of the
MIC button 3(see page 26)
RF Power Adjusts the transmission power
(see page 26)
Pilot Tone Activates/deactivates the pilot
tone transmission (see page 27)
LCD Contrast Adjusts the contrast of the
display panel (see page 28)
Reset Resets the settings made in the
operating menu (see page 28)
Software Revision Displays the current software
revision (see page 28)
Exit Exits the extended menu
“Advanced Menu” and returns to
the main menu