SK 5012 - Wireless Microphone Transmitter SENNHEISER - Free user manual and instructions

Product type	Wireless bodypack transmitter
Brand	Sennheiser
Model	SK 5012
Dimensions	53 x 60 x 17 mm
Weight (with batteries)	130 g
Power supply	2 LR03 (AAA) batteries or rechargeable batteries (700 mAh)
Operating time (alkaline batteries)	Approx. 7 hours
Operating time (rechargeable batteries)	Approx. 5.5 hours
Frequency range	450 - 960 MHz (switchable 24 MHz band)
RF output power	30 mW typical
Modulation	FM
Input sensitivity	Adjustable in 6 positions (5 steps of 8 dB)
Noise reduction system	HiDyn plus™
Signal-to-noise ratio	Greater than 110 dB (A)
Frequency response	60 Hz - 20 kHz
Connectors	Audio: Lemo 3-pin; RF: Lemo coaxial
LED indicators	Power, low battery, peak (PEAK)
Housing material	Die-cast metal (bright chrome finish)
Protection	Against humidity
Attachment	Detachable and reversible belt clip
Included accessories	Antenna, 2 batteries, clip, adjustment tool

Frequently Asked Questions - SK 5012 SENNHEISER

How to insert batteries into the SK 5012?

Slide the battery compartment cover by pressing the side latches. Insert two LR03 (AAA) batteries observing polarity. Close until you hear a click.

How to turn on the transmitter and check its status?

Set the ON/OFF switch to ON. The red LED lights up continuously. If it flashes periodically, batteries are low (about 30 minutes remaining). A brief flash indicates an audio peak.

How to connect a lavalier microphone to the SK 5012?

Use a Sennheiser microphone with a specific Lemo connector (e.g., MKE 2-4). Plug the Lemo connector into the microphone input (top of the transmitter) and screw the locking ring to secure the connection.

How to select the frequency channel?

Turn the channel selector (5) to the desired position. The position/channel/frequency correspondence is shown on the table inside the battery compartment.

How to adjust the input sensitivity?

Use the 6-position GAIN selector. For loud speech, use positions 2 or 3. For very loud sounds (with plosives), position 1. The PEAK LED should only flash briefly during peaks.

What to do if the receiver does not receive the signal?

Check batteries, turn on transmitter and receiver, set to the same frequency, ensure the antenna is not obstructed by metal or in contact with skin.

What types of batteries can I use?

Use alkaline LR03 (AAA) batteries for maximum operating time (approx. 7h). Rechargeable batteries (700 mAh) provide approx. 5.5h. The low battery LED flashes before depletion.

How to attach the transmitter to clothing?

Use the provided belt clip. You can reverse it to hang the transmitter upside down. Thanks to its compact housing (53x60x17 mm), it fits easily in a pocket or on a belt.

What is the HiDyn plus™ system?

It is a Sennheiser noise reduction process that improves the signal-to-noise ratio (>110 dB) and reduces radio interference. It requires a compatible receiver (e.g., EM 1046).

How to clean and maintain the SK 5012?

Clean the metal housing with a soft, dry cloth. Do not use solvents. Protect from excessive moisture. Regularly check the condition of batteries and connectors.

USER MANUAL SK 5012 SENNHEISER

Alkali-Mangan = ca.7h;

Typ Mikro LRC AAA IEC LR 03

700 mAh je Zelle = ca. 5,5 h;

Typ Mikro LRC AAA IEC LR 03

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Thank you for choosing Sennheiser! We have designed this product to give you reliable operation over many years. Over half a century of accumulated expertise in the design and manufacture of high-quality electro-acoustic equipment have made Sennheiser a world-leading company in this field.

Due to its extremely compact design, the SK 5012 is especially suitable for all applications where a very unobtrusive transmitter is required.

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Features

• Extremely small metal diecast casing
• Very rugged
• Special protection against the ingress of moisture
• 6-step sensitivity switch for optimum adaption to different microphone input levels
• Supplies powering for connected condenser microphones
• State-of-the-art PLL technology, 16 switchable channels
  HiDyn plusTM noise reduction system
• Signal-to-noise-ratio >110 dB (A)
• Voltage converter ensures constant output power until the batteries are completely discharged
• LED operation indicator: LED lights up
• LED "low battery" indicator: LED blinks periodically
• LED peak indicator: LED flashes brightly
• Reliable, easy-to-use clip attachment

Delivery includes

• SK 5012
• Antenna
• 2 batteries
• Attachment clip
• Adjustment tool

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SK 5012-23

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Operating elements

1 Microphone input socket
2 LED indicator
3 Antenna socket
4 Sensitivity switch
5 Channel selector switch
6 Frequency/channel data plate
7 Type plate (inside battery compartment)
8 ON/OFF switch

Inserting the batteries

Open the battery compartment by simultaneously pushing down the two catches at the sides. Insert the two AAA size alkaline batteries into the battery compartment.

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Attention

Please observe correct polarity.

When closing the battery compartment, make sure that the two catches at the sides lock into place. An audible "click" should be heard.

The transmitter can also be powered by rechargeable batteries.

SK 5012 - 25

Turning the transmitter on

Set the ON/OFF switch to ON. The red LED lights up. This LED also serves as a peak indicator (PEAK) and "low battery" indicator (LOW BATT).

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"Low battery" indication

The transmitter has an integrated voltage converter which ensures constant operating conditions until the batteries are completely discharged. When the remaining operating time is approx. 30 minutes, the LED starts blinking periodically.

As the batteries discharge, the blinking of the LED accelerates.

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Note

If the transmitter is powered by rechargeable batteries, the LED only starts blinking shortly before the batteries are completely discharged.

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Connecting microphones

The transmitter has been designed for use with Sennheiser "lavalier" clip-on microphones which are fitted with a special Lemo plug. The supply voltage for powering these microphones is fed via the transmitter's microphone input. Connect the microphone's Lemo plug to the socket at the top of the transmitter and lock the connection by screwing down the coupling ring.

Selecting a channel

Set the channel selector switch to the desired position. The assignment of a switch position/channel to a frequency is listed on the frequency/channel data plate (see inside battery compartment cover).

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Attaching the transmitter

Due to its small dimensions and extremely flat design, the transmitter can easily be attached to clothing (e.g. pocket, waistband, belt) by means of the supplied clip.

The clip can easily be withdrawn from its fixing points, if required, by pulling it sideways and attached the other way round.

Adjusting the sensitivity

Use the 6-step sensitivity switch (GAIN) to adapt the gain of the microphone input to the expected sound levels.

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In practice, the following settings have proved their worth for adjusting the sensitivity:

Position 1 = high-frequency, loud audio material with many plosives

Position 2,3 = loud voices, vocals (close-miking)

Position 3,4,5 = normal voices, talkshows

Position 6 = soft voices

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To provide for an accurate setting, use a receiver fitted with a deviation indicator (e.g. EM 1046) when adjusting the sensitivity.

As an aid to orientation, the LED peak indicator (PEAK) lights up brightly. The sensitivity is set correctly, when the LED flashes brightly only during peak levels. When adjusting the sensitivity, hold or attach the microphone exactly where it will be positioned during use.

HiDyn plusTM

This transmitter is equipped with HiDyn plus™, the Sennheiser noise reduction system that reduces possible RF interference. Together with a receiver which is also equipped with HiDyn plus™ (e.g. EM 1046), an RF link of excellent operational reliability and highest transmission quality can be set up.

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Accessories

Only use original Sennheiser accessories.

Attention

Components from other manufacturers may cause damage to the unit and will invalidate the warranty!

The following Sennheiser "lavalier" clip-on microphones are available:

• MKE 2-4, MKE 102-4 (omnidirectional pick-up pattern)
• MKE 40-4, MKE 104-4 (cardioid pick-up pattern)

Please order from your local Sennheiser dealer.

Important note

To reach the maximum operating time, we recommend using AAA size alkaline manganese batteries (IEC LR 03).

If problems occur ...

Insert the batteries properly into the battery compartment.

Check the polarity (+ / - ) of the batteries.

Check the battery status.

Turn the transmitter and the receiver on.

Set the transmitter and the receiver to the same frequency.

Make sure that the receiving antenna is within the transmitter's range.

Make sure that neither transmitting nor receiving antenna are shielded by metal constructions (or metallic clothing).

Make sure that the receiving antenna is not in direct contact with the skin.

If the problem persists, please contact your specialist dealer for assistance.

Never open the unit!

Socket assignment SK 5012

Antenna socket

Thread = ground

Antenna 50 impedance

AF socket

Thread + Pin 3 = ground

Pin 1
+5.2 V for
external special microphones

Pin 2
AF and
AB-powering
8.2 kΩ at 5.2 V
for Sennheiser condenser
microphones

Technical data

Casing	metal diecast casing / light chromium plating 53 x 60 x 17 mm
Battery compartment	integrated, for 2 AAA size cells with reverse battery protection
Frequency range	450 - 960 MHz
Switching bandwidth	24 MHz
RF output power	typ. 30 mW
Frequency stability	± 10 ppm
Spurious emission	< 4 nW
Modulation	FM
Nominal / peak deviation	± 40 kHz / ± 56 kHz
Compander system	Sennheiser HiDyn plus™
Input sensitivity	max. 49 mVrms = -24 dBu
for nominal deviation / 1 kHz AF	switchable in 5 steps of 8 dB max. input voltage 1.55 Vrms
Current consumption	115 mA / 2.4 V
AF frequency response	60 Hz - 20 kHz
Signal-to-noise ratio	110 dB(A)rms
THD	< 0.3% at nominal deviation / 1 kHz
Connections	AF: 3-pin Lemo; RF: special co-ax Lemo
Weight with batteries	130 g
Operating time with primary cells	AAA size alkaline batt. (IEC LR 03) = approx
Operating time with recharging. batt.	700 mAh per cell (IEC LR 03) = approx. 5.5 h

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Indication "LOW BATT"

Position 3,4,5 = Voix de volume normal, talk shows

Position 6 = Voix douces

Tip Micro LRC AAA IEC LR 03

Modelo Micro LRC AAA IEC LR 03

700 mAh cada cel. = aprox.5,5h;

como Mikro LRC AAA IEC LR 03

SK 5012 Mikroport zakzender

Alkali-mangaan = ca. 7 h;

type Mikro LRC AAA IEC LR 03

700 mAh per accu = ca. 5,5 h;

type Mikro LRC AAA IEC LR 03

C0682①

Sennheiser electronic GmbH & Co. KG declare that this device is in compliance with the applicable CE standards and regulations. Before putting this device into operation, please observe the respective country-specific regulations!

Certification

Subject to alterations