Sennheiser SK 50, SK 250 User Manual

Bedienungsanleitung

Instructions for use

Notice d‘emploi

Istruzioni per l‘uso

Instrucciones para el uso

Gebruiksaanwijzing

Bruksanvisning

SK 50

SK 250

Gebrauchsanleitung .................................. 3

Instructions for use.................................. 17

Instructions pour l’usage ........................ 31

Istruzioni per l’uso ................................... 45

Mode de empleo .......................................59

Gebruiksaanwijzing ................................. 73

Bruksanvisning......................................... 87

INSTRUCTIONS FOR USE
MIKROPORT BODY-PACK TRANSMITTER

SK 50

SK 250

17

CONTENTS

1. BRIEF DESCRIPTION 19

2. CONTROLS AND CONNECTIONS 20

3. MICROPHONE SELECTION 21

4. USING FOR THE FIRST TIME 21

4.1. B 50 / B 250 QUICK-CHANGE ENERGY PACK 21

4.2. BA 50 / BA 250 QUICK-CHANGE ENERGY PACK 23

4.3. POSSIBLE COMBINATIONS OF TRANSMITTERS
WITH THE QUICK-CHANGE ENERGY PACK 24

5. CHANNEL SELECTION 24

6. SWITCHING ON 24

7. SENSITIVITY SETTING 25

8. ATTACHMENT OF THE BODY-PACK TRANSMITTER 25

9. LICENSING REGULATIONS 26

10. TECHNICAL DATA SK 50 UHF / SK 250 UHF 27

11. TECHNICAL DATA SK 50 VHF 28

12. TECHNICAL DATA SK 250 VHF 29

18

1. BRIEF DESCRIPTION

MODELS FREQUENCY RANGE SWITCHING BAND WIDTH CHANNELS

SK 50 UHF 450 bis 960 MHz 24 MHz 16
SK 250 UHF 450 bis 960 MHz 24 MHz 16

SK 50 VHF (1) 138 bis 160 MHz 22 MHz 16
SK 50 VHF (2) 153 bis 181 MHz 28 MHz 16
SK 50 VHF (3) 174 bis 202 MHz 28 MHz 16
SK 50 VHF (4) 195 bis 223 MHz 28 MHz 16
SK 50 VHF (5) 223 bis 260 MHz 37 MHz 16

SK 250 VHF (1) 138 bis 170 MHz 38 MHz 16
SK 250 VHF (2) 170 bis 225 MHz 55 MHz 16
SK 250 VHF (3) 210 bis 260 MHz 50 MHz 16

In combination with a connected microphone, the transmitter can be used
as a cordless microphone. Its flat shape and small dimensions make this
design especially well - suited for particular applications in which an
inconspicuous appearance is required, as is the case with film and
television productions, for example. To reduce interference and to
improve the signal-noise ratio, SK 50 and SK 250 transmitters are
equipped with the "HiDyn
with a receiver which is also equipped with this system (e.g. EM 1046), a
connection can be established, which is characterised by excellent
operational reliability and supreme transmission quality.

FEATURES:

• Metal injection-moulded casing with quick-change energy pack

• State-of-the-art PLL technology, 16 switchable channel

• Sennheiser "HiDyn

• Signal-to-noise ratio > 108 dB (A)

• Integratal voltage converter for constant output power

through to complete discharge of the battery or rechargeable battery

• Operating time display with blinking warning

• Battery status transmission to the receiver

• Operating and peak deviation indicator

plus

plus

" compander

" noise reduction system. In combination

19

2. CONTROLS AND CONNECTIONS

7

6

5

4

3

1 ANTENNA SOCKET
2 CHANNEL SELECTION SWITCH
3 OPERATING TIME DISPLAY
4 ON / OFF SWITCH
5 OPERATING / PEAK DEVIATION INDICATOR
6 SENSITIVITY SELECTOR SWITCH FOR MICROPHONE INPUT
7 MICROPHONE INPUT

1

2

20

3. MICROPHONE SELECTON

The MKE 2-4, MKE 102-4 (omnidirectional polar pattern) and MKE 40-4
(cardioid polar pattern) Lavalier chlip-on microphones are available. They
are equipped with a special Lemo plug. The plug is disconnected by
unscrewing the threaded collar.

The voltage necessary to operate these microphones is available at the
microphone input of the transmitter. Dynamic microphones and other
low-impedance sources can be connected through an external coupling
condenser of approx. 10 µF (+pole on contact 2).

4. USING FOR THE FIRST TIME

4.1. B 50 / B 250 QUICK-CHANGE ENERGY PACK

Insert the batteries as described on page 22, Fig. 2 and Fig. 3.
After insertion of the batteries, the cover of the quick-change energy pack
is to be snapped into place. The LED display on the front side of the
energy pack (Fig. 1) serves as a battery control display.

FIG. 1

BATTERY CONTROL DISPLAY

100 %

50 %

10 %

STARTS TO BLINK IF THE REMAINING

OPERATING TIME FALLS BELOW. 30 MIN.

21

FIG. 2

QUICK-CHANGE ENERGY PACK
B 50

FIG. 3

QUICK-CHANGE ENERGY PACK
B 250

+

+

+

+

NOTE:

ALKALINE-MANGANESE BATTERIES OF THE "MIGNON" LRC AA TYPE

ARE TO BE USED EXCLUSIVELY. PERFECT FUNCTIONING OFTHE

TRANSMITTER IS GUARANTEED ONLY WITH THIS TYPE OFBATTERY.

22

+

CLOSE

COVER

4.2. BA 50 / BA 250 QUICK-CHANGE ENERGY PACK

The LCD display on the front side of the energy pack (Fig. 4) servers as a
battery control display.

FIG. 4

RECHARGEABLE BATTERY DISPLAY

100 %

80 %
60 %
40 %
20 %

STARTS TO BLINK IF THE REMAINING

OPERATING TIME FALLS BELOW 30 MIN.

In addition to the visual display on the quick-change energy pack, the
transmitter communicates the status of the batteries or the rechargeable
batteries to the EM 1046 for presentation on the receiver display.

FIG. 5

RELEASING THE QUICK-CHANGE
ENERGIE PACK

Squeeze the catch with the thumb
and index finger, and separate the
transmitter from the quick-change
energy pack.

To attach the quick-change energy
pack, simply let the quick-change
energy pack snap into the
transmitter.

23

4.3. POSSIBLE COMBINATIONS OF TRANSMITTERS
WITH THE QUICK-CHANGE ENERGY PACK

FIG. 6

SK 50

SK 50-UHF

SK 50-UHF

SK 50-UHF

SK 50-UHF

B 50 B

BA 50

BA 250

250

SK 250

SK 250-UHF

B 50 B

SK 250-UHF

SK 250-UHF

BA 50

SK 250-UHF

BA 250

250

The SK 250 / B 50 and SK 250 / BA 50 combinations are not possible because
the power of the battery / rechargeable battery pack is not adequate for this
transmitter.

5. CHANNEL SELECTION

To select the appropriate channel or the appropriate frequency in
accordance with the type plate, move the channel selection switch 2 to the
desired position.

6. SWITCHING ON

After attaching the quick-change energy pack, the transmitters is switched
on by moving the operating switch 4 into the "ON" position. The red
operating indicator 5 lights up. Should the operating indicator not light up,
check the quick-change energy pack.

24

7. SENSITIVITY SELECTOR SWITCH

The sensitivity selector switch 6 can be used to adapt the gain of the
microphone input in 8 steps to the level of the sound expected. This
setting is to be made in combination with a receiver which has a peak
indicator available, such as the EM 1046. The sensitivity is set correctly
when the "peak" indicator 5 lights up brightly during level peaks. The
microphone is to be held or mounted in its position for later use when
setting. The corresponding display on the EM 1046 receiver indicates a
maximum deviation of approx. 125 %.

In practice, the following guide values have proven themselves for the
adjustment of the sensitivity setting:

Position 2,3 = Loud voices, songs, theatre
Position 3,4,5 = Normal voices, talkshows, interviews
Position 6,7 = Soft voices
Position 8 = Use only for connection with a dynamic microphone !

8. ATTACHMENT OF THE BODY-PACK
TRANSMITTER

Its small dimensions and flat form make it possible to carry the transmitter
easily in a jacket pocket or trousers pocket. The device is to be protected
against falling out by a tight gripping clip with which the transmitter can
also be attached to the waistband or to a belt (Page 26, Fig. 7). To attach the
transmitter with the connections facing downwards, simply reverse the clips.

The nylon transmitter pouch with Velcro closure (accessory) provides
effective protection against moisture for actors who perspire heavily.

25

FIG, 7

Note:

The transmitter can also be
attached so that the cable
and antenna point
downwards.

9. LICENSING REGULATIONS

The type plate contains the channel data and the transmit frequency data
as well as the BZT approval, which you require for your application for
the licence from the Post Office. It is located on the underside of the device.

26

10. TECHNICAL DATA SK 50 UHF / SK 250 UHF

Transmit frequencies 16
Frequency range 450 - 960 MHz
Switching band width 24 MHz
Frequency stability ± 5 ppm
Spurious and emmissions < 4 nW
Modulation FM
Nominal / peak deviation ± 40 kHz / ± 56 kHz
Compander Sennheiser HiDyn
Input sensitivity for peak
deviation 13.2 mV - 1.55 V

8-position switch
Audio frequency range 70 Hz - 20 kHz
Dynamics 110 dB(A) eff.
THD < 0.3 % (nominal peak / 1 kHz)

Connections AF: Lemo special (3-pin)

RF: Lemo special Koax
Dimensions with power pack 94 x 60 x 17 mm with B 50 / BA 50

116 x 60 x 17 mm with B 250 / BA 250
Weight with power pack approx. 197 g with B 50 / BA 50

approx. 230 g with B 250 / BA 250

SK 50 UHF SK 250 UHF

RF output power 50 mW / -3 dB 250 mW / -1 dB
Operating time with primary cells B 50: > 4.5 h cannot be used

B 250: > 9 h B 250: > 3 h
Operating time with rechargeable BA 50: > 3 h cannot be used

battery BA 250: > 5 h BA 250: > 2.5 h

Delivery includes for SK 50 UHF 1 SK 50 UHF body-pack transmitter

1 marking set

1 antenna (aligned)

1 instructions for use

Delivery includes for SK 250 UHF 1 SK 250 UHF body-pack transmitter

1 marking set

1 antenna (aligned)

1 instructions for use

plus

Erros and omissions excepted. Subject to alterations and corrections.

27

11. TECHNICAL DATA SK 50 VHF

Transmit frequencies 16
Frequency range SK 50 VHF (1) 138 ... 160 MHz

Switching band width SK 50 VHF (1) 22 MHz

Frequency stability ± 10 ppm
Spurious and emmissions < 4 nW
Modulation FM
Nominal / peak deviation ± 40 kHz / ± 56 kHz
Compander Sennheiser HiDyn
Input sensitivity for peak
deviation 13 mV - 1.55 V

Audio frequency range 70 Hz - 20 kHz
Dynamics 110 dB(A) eff.
THD < 0.3 % (nominal peak / 1 kHz)

Connections AF: Lemo special (3-pin)

Dimensions with power pack 94 x 60 x 17 mm with B 50 / BA 50

Weight with power pack approx. 197 g with B 50 / BA 50

RF output power 50 mW / -2 dB
Operating time with primary cells B 50: > 6 h

Operating time with rechargeable BA 50: > 4 h
battery BA 250: > 6.5 h

Delivery includes 1 SK 50 VHF body-pack transmitter

28

SK 50 VHF (2) 153 ... 181 MHz

SK 50 VHF (3) 174 ... 202 MHz

SK 50 VHF (4) 195 ... 223 MHz

SK 50 VHF (5) 223 ... 260 MHz

SK 50 VHF (2) 28 MHz

SK 50 VHF (3) 28 MHz

SK 50 VHF (4) 28 MHz

SK 50 VHF (5) 37 MHz

plus

8-position switch

RF: Lemo special Koax

116 x 60 x 17 mm with B 250 / BA 250

approx. 230 g with B 250 / BA 250

B 250: > 13 h

1 marking set

1 antenna (aligned)

1 instructions for use

11. TECHNICAL DATA SK 250 VHF

Transmit frequencies 16
Frequency range SK 250 VHF (1) 138 ... 170 MHz

Switching band width SK 250 VHF (1) 38 MHz

Frequency stability ± 10 ppm
Spurious and emmissions < 4 nW
Modulation FM
Nominal / peak deviation ± 40 kHz / ± 56 kHz
Compander Sennheiser HiDyn
Input sensitivity for peak
deviation 13 mV - 1.55 V

Audio frequency range 70 Hz - 20 kHz
Dynamics 110 dB(A) eff.
THD < 0.3 % (nominal peak / 1 kHz)

Connections AF: Lemo special (3-pin)

Dimensions with power pack 116 x 60 x 17 mm with B 250 / BA 250
Weight with power pack approx. 230 g with B 250 / BA 250

RF output power 250 mW / -1 dB
Operating time with primary cells B 50: cannot be used

Operating time with rechargeable BA 50: cannot be used
battery BA 250: > 2.5 h

Delivery includes 1 SK 250 VHF body-pack transmitter

SK 250 VHF (2) 170 ... 225 MHz

SK 250 VHF (3) 210 ... 260 MHz

SK 250 VHF (2) 55 MHz

SK 250 VHF (3) 50 MHz

plus

8-position switch

RF: Lemo special Koax

B 250: > 2.5 h

1 marking set

1 antenna (aligned)

1 instructions for use

Erros and omissions excepted. Subject to alterations and corrections.

29

KONFORMITÄTSERKLÄRUNG

Sennheiser electronic GmbH & Co. KG, Am Labor 1, D-30900 Wedemark
erklären, daß dieses Gerät den einschlägigen Anforderungen der EG-Richt­linie 89/336/EWG entspricht.
Zur sachgemäßen Umsetzung der in den EG-Richtlinien genannten Anforde­rungen wurden folgende Normen herangezogen:

Bemerkung:
Vor Inbetriebnahme sind die jeweiligen länderspezifischen Vorschriften
zu beachten!

ETS 300 445
ETS 300 422

CERTIFICATE OF CONFORMITY

Sennheiser electronic GmbH & Co. KG, Am Labor 1, D-30900 Wedemark
declare that this device conforms to the basic requirements of EEC Directive
89/336/EEC.
To effect correct application of the requirements stated in the EEC Directives,
the following standards were consulted:

Important:
Before putting the device into operation, please observe the respective
country-specific regulations!

ETS 300 445
ETS 300 422

DÉCLARATION DE CONFORMITÉ

Sennheiser electronic GmbH & Co. KG, Am Labor 1, D-30900 Wedemark
déclarons que cet appareil est conforme aux prescriptions fondamentales dans
la Directive de la CEE 89/336/CEE.
Pour mettre en pratique dans la règle de l’art les prescriptions des Directives
de la CEE, il a été tenu compte des normes suivantes:

Important:
Avant d’utiliser l’appareil, veuillez observer les dispositions légales en
vigueur dans votre pays.

ETS 300 445
ETS 300 422

104

CERTIFICATO DI CONFORMITÁ

Sennheiser electronic GmbH & Co. KG, Am Labor 1, D-30900 Wedemark
dichiariamo che questo apparecchio risponde alla normativa 89/336/EWG.
Per un’appropriato risconto nell’ambito della normativa CEE sono state
consultate le seguenti normative:

Nota:
Prima della messa in funzione seguite le prescrizioni vigenti nel paese nel
quale viene utilizzato!

ETS 300 445
ETS 300 422

DECLARACIÓN DE CONFORMIDAD

Sennheiser electronic GmbH & Co. KG, Am Labor 1, D-30900 Wedemark
declaramos que este aparato cumple los requerimientos básicos de la
normativa de la CEE 89/336/CEE.
Con el fin de realizar de forma adecuada los requerimientos referidos en las
normativas de la CEE fueron consultadas las siguientes normativas:

Observación:
!Anterior a la puesta en funcionamiento deberán observarse las
correspondientes ordenanzas nacionales!

ETS 300 445
ETS 300 422

CONFORMITEITSVERKLARING

Sennheiser electronic GmbH & Co. KG, Am Labor 1, D-30900 Wedemark
verklaren, dat dit toestel evereenkomt met de basiseisen van de EG-richtlijn
89/336/EEG.
Om de eisen, die in de EG-fichtlinien vermeld zijn, in juiste vorm om te zetten,
zijn van volgende normen gebruik gemaakt:

Opmerking:
Voor inbedrijfstelling dient u de afzonderlijke landspecifieke
voorschriften in acht te nemen!

ETS 300 445
ETS 300 422

105

106

107

Sennheiser electronic GmbH & Co. KG

30900 Wedemark, Germany

Phone [phone]

Fax [phone]

www.sennheiser.com

Printed in Germany Publ. 04/05 48208/A07