SKM 1072-U - Wireless Microphone SENNHEISER - Free user manual and instructions

USER MANUAL SKM 1072-U SENNHEISER

IEC 6LR61, 9 V, Alkaline

Thank you for choosing Sennheiser!

You have made an excellent choice. This product will give you reliable operation over many years. All of Sennheiser's professional expertise and more than fifty years of experience have gone into the creation of this state-of-the-art product.

Please take a few moments to read these instructions carefully. We want you to enjoy your new radiomicrophone quickly and to the full.

Brief description

The SKM 1072-U is a hand-held radiomicrophone for use in a wireless sound transmission system.

It is mainly used for presentations, on stage or as a vocal microphone. The SKM 1072-U can be used as a hand-held transmitter or worn around the neck using the supplied SZU 1032 lavalier clip. A BA 1032 rechargeable battery and the corresponding L 1032 charger are available as accessories.

Features

high reliability and long operating time also in rechargeable battery operation
easy handling and operation
16 switchable channels
can also be powered by the optional BA 1032 accupack
- Noiseless microphone mute switch

Inserting the battery

adjusting the transmission frequency

selecting the sensitivity

switching on the transmitter

Muting the microphone (N.B.: This operation does not switch off the transmitter.)

Cleaning the sound inlet basket

Inserting the battery

Insert the battery as shown in the above figure.

Pay attention to the polarity!
Use only alkaline-manganese batteries or the approved accumulator! Otherwise operating time (see technical data) will be drastically reduced.

For frequent operation it is advisable to use the BA 1032 rechargeable accumulator instead of batteries.

BA 1032 accupack, charge in the L 1032 charging Unit

The BA 1032 unpack is charged in the L 1032 charging unit. The charger requires the NT 1032 plug-in mains unit. One unpack can be charged in the microphone, a second spare unpack can be charged at the same time in the appropriate battery compartment of the charger. L 1032 and NT 1032 are available as accessories.

The SKM 1072-U is connected to the L 1032 charger via charging contacts (see figure on next page).

Please take care that these contacts are clean.

Adjusting the transmission frequency

Adjust the desired transmission frequency with switch ⑤. Each number on the switch corresponds to a transmission frequency. The transmission frequencies are listed on the type plate in the battery compartment.

Make sure that transmitter and receiver operate on the same frequency.
Use a small screwdriver (width approx. 2mm ) for switching.

Switching the transmitter on / selecting the sensitivity

The ON/OFF switch 6 and the sensitivity switch 7 are recessed.

As the ON/OFF switch is used more often it is set slightly higher than the sensitivity switch.

After switching on the transmitter you have to wait approx. 2 seconds as the transmitter requires this time for adjusting to the chosen frequency (PLL locked). After a short time, the red LED below the ON/OFF switch will light up. It serves as a pilot lamp and indicates:

when it is lit: The battery is O.K.

when it blinks: The battery is almost flat, it will only work for about another half an hour.

if it flickers: A self-test has shown a defect. Please return the microphone to your local Sennheiser service department for repair.

When the sensitivity switch 7 is set to "LOW", the audio signal is attenuated, thus avoiding overmodulation when close-miking.

Muting the microphone

With switch ⑧ you can mute the microphone of the hand-held transmitter without switching off the transmitter itself. This avoids hissing noise in the receiver. The "ON" and "OFF" positions are clearly marked on the switch.

Cleaning the sound inlet basket

For cleaning, unscrew the sound inlet basket. Rinse the foam protection and the inlet basket with warm water, then dry with a hairdryer.

Only re-assemble the microphone when the inlet basket and the foam protection are completely dry!

HiDynplus noise reduction system

The SKM 1072-U is fitted with the Sennheiser HiDynplus® noise reduction system. It can only work properly when the corresponding receiver also operates with HiDynplus®; otherwise the dynamic range will be greatly reduced and transmission will sound shrill.

Microphone use

If the SKM 1072-U is used as a hand-held transmitter the sensitivity should be switched to "LOW". For outdoor recordings and close-miking use the MZW 1032 windshield to reduce pop and wind noise.
If you want to wear the SKM 1072-U around your neck, use the supplied SZU 1032 lavalier clip as shown above. Set the sensitivity to "HIGH".

Fault Finding

Fault

No function

Acoustic feedback

Possible cause

flat or weak battery battery inserted the wrong way round
microphone is too close to the loudspeaker(s)
receiver may not be equipped with HiDynplus (The transmitter and receiver must both have the same noise reduction system. Receivers with a different noise reduction system will not only sound incorrect but also increase susceptibility to feedback. Make sure that the receiver is fitted with HiDynplus.)

No transmission though transmitter is switched on

Distortion

receiver and transmitter are switched to different frequencies
sensitivity too high, sensitivity switch should be set to "LOW" when the SKM 1072-U is used as a hand-held microphone

Technical data

Frequency synthesizing

Number of channels /channel grid

Transmitter output power

Modulation

Switching bandwidth

Nominal dev./peak dev. at 1kHz

S/N ratio (nom. dev.)

S/N ratio (peak dev.)

Noise reduction system

AF frequency response

THD at 1kHz

Sound pressure level at nom. dev.

Microphone type

Pre-emphasis

THD at 1kHz

Power supply

Operating voltage range

Current consumption

Operating time

Dimensions

Weight

Delivery includes

SKM 1072-U

PLL (phase-locked loop) synthesizer

16 switchable UHF channels

≤ 30 ~mW

FM, wideband

32 MHz

± 40kHz / ± 56kHz

117 dB (A) as per DIN 45412 at 1kHz

103 dB as per CCIR, DIN 45405

HiDynplus

80...18,000 Hz +1/-3 dB

< 0.3%

Position "HIGH": 104 dB SPL

Position "LOW": 124 dB SPL

super-cardioid condenser microphone

50 μs

< 0.3 % at nominal deviation

9V PP3 alkaline-manganese battery

(IEC 6LR61) or Sennheiser BA 1032

rechargeable accupack

5.5 ... 9 V

approx. 48mA

approx. 8h (alkaline-manganese battery)

approx. 2 h (BA 1032)

245× 38mm

approx. 250g (including battery)

1 SKM 1072-U hand-held transmitter

1 SZU 1032 lavalier clip

1STH 1051 quick-release clamp

GEBRAUCHSANLEITUNG

INSTRUCTIONS FOR USE

NOTICE D'EMPLOI

ISTRUZIONI PER L'USO

directive super-cardioide

50~ s

IEC 6LR61, 9 V, alkaline

IEC 6LR61, 9V, alkaline

ofbatterij Sennheiser BA 1032

5,5Vtot9V

ca. 48mA

ca. 8h

ca. 2h

245× 38mm

ca. 250g incl.batterij

1 handzender SKM 1072-U

Subject to alterations

Sennheiser electronic KG

D-30900 Wedemark

Printed in Germany

Publ. 04/96

Telefon [phone]

Telefax 05130/6312

58859/A01