wireless stereo microphone receiver, bodypack receiver
General Description
The EK 3253 is a stereo bodypack receiver designed for professional wireless monitoring applications.
The compact, lightweight but very rugged receiver allows the user complete freedom of movement. The EK 3253 has an integrated display and offers great ease of use. 16 of its 32 receiving frequencies are tunable in steps of 5 kHz. A switching bandwidth of 36 MHz and the efficient Sennheiser HDX noise reduction system ensure reliable, high-quality signal reception.
Features
- Easy to use
- Rugged metal housing
- FOCUS function for individual audio mix
- Pilot tone squelch control (during stereo operation)
- 36 MHz switching bandwidth
- Receiving frequencies tunable in steps of 5 kHz
- Scan function for scanning for free channels
Delivery Includes
- 1 EK 3253 bodypack receiver
- 2 batteries
- IE 4 earphones
- Instructions for use
wireless stereo microphone receiver, bodypack receiver
Technical Data
| Audio output power |
2 x 100 mW at 32 Ω |
| Compander |
Sennheiser HDX |
| Dimensions |
3.2 x 2.5 x 0.94 in. (82 x 64 x 24 mm) |
| Frequency response |
40 - 15.000 Hz |
| Connector (headphones) |
¼“ (6.35 mm) stereo jack socket |
| In compliance with |
IC 2099A-SREK3K, ETSI EN 300 454-1/-2 |
| Modulation |
FM stereo (pilot tone) |
| Nominal deviation |
± 24 kHz |
| Operating time (Accupack) |
6-10 h. (depending on volume) |
| Operating time (battery) |
6-10 h. (depending on volume) |
| Peak deviation |
± 48 kHz |
| Powering |
2 AA batteries, 1.5 V |
| RF frequency range |
518...554, 626...662, 740...776, 786...822, 830...866 MHz |
| Signal-to-noise-ratio |
> 90 dB(A)rms (refers to overall link with SR 3254) |
| Switching bandwidth |
36 MHz |
| Total harmonic distortion (THD) |
<0.9 % |
| Transmission/receiving frequencies |
16 factory-preset channels, 16 freely selectable channels (tunable in steps of 5 kHz) |
| Weight incl. Accupack |
approx.7.1 oz. (200 g) |
wireless stereo microphone receiver, bodypack receiver
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Article No. |
wireless stereo microphone receiver, bodypack receiver
Variants
Glossary
| Compander |
| Also known as noise reduction system. A system which improves the signal-to-noise ratio by compressing the dynamics on the transmitter side using a compressor, and subsequently restores the normal dynamics on the receiver side using an expander. |
| Frequency response |
| The frequency response of a microphone is given within the limits defined by the manufacturer. In studio condenser microphones it is generally within the range of between 20 Hz and 20 kHz. |
| In compliance with |
| Gives the guidelines and requirements which have to be met before a unit can be put onto the market. Such guidelines are published by e.g. standards committees, telecommunications authorities etc. |
| Modulation |
| The process in which one wave is varied by some parameter of another wave, for example, an RF carrier frequency that is modulated by an audio signal. Types of modulation include amplitude modulation, frequency modulation, pulse code modulation and pulse width modulation. |
| Nominal deviation |
| Also known as reference deviation. The nominal deviation has been fixed at 40kHz to be able to give comparable technical data. |
| Operating time (Accupack) |
| Indicates the operating time with a new, fully charged accupack. |
| Operating time (battery) |
| Indicates the operating time with a new, fully charged battery. |
| Peak deviation |
| Maximum permissible deviation for FM. |
| Powering |
| Common description, where the electric power comes from. |
| RF frequency range |
| The range of frequencies to which a unit (e.g. a receiver) can be tuned. |
| Switching bandwidth |
| The frequency band in which frequencies can be switched directly. |
