EM 3032
RF Wireless Systems | 3000 Series Receivers
General Description
The EM 3032 consists of two complete true diversity receivers in a single 19” 1 U rack housing. 32 programmable receiving frequencies per receiver ensure flexible channel selection and make this receiver an ideal choice for OB applications or for use in shows.
General Features
j Up to 32 programmable receiving frequencies per receiver j Switching bandwidth max. 24 MHz (UHF) or 7 MHz (VHF)
j HiDyn plus™ noise reduction system with 117 dB(A)rms signal-to-noise ratio j Multi-function LC display panel
j Indication of transmitter battery status (only with Sennheiser transmitters transmitting battery status information)
j 19” 1 U metal housing with built-in mains power supply unit j Suitable for multi-channel applications
EM 3032
j Two true diversity receivers, 19” 1 U housing j Integral antenna splitter, 2 x 1 : 2
j LC display for frequency, RF and AF level j Two separate headphone outputs
j Delivery includes: 1 EM 3032 receiver, 2 telescopic antennas 1 mains cable, 19” rack mount ears
EM 3032-U Cat. No. 009264
EM 3032-V Cat. No. 009290
Technical Data EM 3032-U |
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Type of receiver .................................. |
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Two 32-channel RX |
Receiving frequencies |
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max. 32 |
Frequency range........................................... |
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450–960 MHz |
Switching bandwidth.............................................. |
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24 MHz |
Modulation...................................................... |
|
wideband FM |
Nominal/peak deviation ................ |
± 40 kHz / ± 56 kHz |
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RF squelch ....................................... |
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0–100 µV, adjustable |
Signal-to-noise ratio .................................. |
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> 117 dB(A)rms |
Noise reduction system ................................. |
HiDyn plus™ |
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AF frequency response............... |
45–20,000 Hz (–3 dB) |
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THD (1 kHz) ........................................ |
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≤ 0.4 % (typ. 0.2 %) |
RF inputs.............................................. |
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2 BNC sockets, 50 Ω |
AF output voltage, |
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balanced XLR:............................. |
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max. 18 dBU, adjustable |
Headphone output.................... |
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max. 12 dBU, adjustable |
Output impedance..................................................... |
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≥ 50 Ω |
Power supply ............... |
115 / 230 V AC (+10 % / –15 %) |
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Housing ....................................................................... |
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19“, 1 U |
Dimensions .......................................... |
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436 x 43 x 215 mm |
Weight................................................................ |
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approx. 4 kg |
In compliance with ......................................... |
|
ETS 300 422 |
Technical Data EM 3031-V |
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Type of receiver .................................. |
|
Two 32-channel RX |
Receiving frequencies |
............................................. |
max. 32 |
Frequency range........................................... |
|
138–250 MHz |
Switching bandwidth................................................. |
|
7 MHz |
Modulation...................................................... |
|
wideband FM |
Nominal/peak deviation ................ |
± 40 kHz / ± 56 kHz |
|
RF squelch ....................................... |
|
0–100 µV, adjustable |
Signal-to-noise ratio .................................. |
|
> 117 dB(A)rms |
Noise reduction system ................................. |
HiDyn plus™ |
|
AF frequency response............... |
45–20,000 Hz (–3 dB) |
|
THD (1 kHz) ........................................ |
|
≤ 0.4 % (typ. 0.2 %) |
RF inputs.............................................. |
|
2 BNC sockets, 50 Ω |
AF output voltage, |
|
|
balanced XLR:............................. |
|
max. 18 dBU, adjustable |
Headphone output.................... |
|
max. 12 dBU, adjustable |
Output impedance..................................................... |
|
≥ 50 Ω |
Power supply ............... |
115 / 230 V AC (+10 % / –15 %) |
|
Housing ....................................................................... |
|
19“, 1 U |
Dimensions .......................................... |
|
436 x 43 x 215 mm |
Weight................................................................ |
|
approx. 4 kg |
In compliance with ......................................... |
|
ETS 300 422 |
EM 3031/EM 3032
RF Wireless Systems | 3000 Series Receivers
The EM 3031 and EM 3032 receivers are fitted with an adjustable RF squelch, which mutes the audio output when the antenna voltage drops below the chosen threshold. The squelch can be adjusted between 0 and approx. 100 µV. When the squelch has been triggered, the “MUTE” warning will light up on the receiver display. The receivers are additionally equipped with an AMF advanced muting function. This muting function is triggered when the RF signal suddenly drops by approx. 50 dB. The receiver will then be muted for about 3 seconds to avoid the annoying crackling noise which is caused when a transmitter is switched off.
The EM 3031 and EM 3032 receivers have a headphone output for monitoring the
Mounting the telescopic antennas
incoming audio signal; the monitoring signal is mono. Sennheiser’s closed HD 25 headphones are an ideal choice for monitoring purposes. In order to enable monitoring even in unfavourable conditions (e.g. low AF signal level from the transmitter) and with high ambient noise (on the stage, for example), the signal from the headphone output is up to 30 dB louder than the LINE output signal. However, this may lead to distortion if the level of the incoming signal is quite high and if the volume control is turned up. In this case, turn back the volume until the distortion disappears. If the sound remains distorted, the transmitter itself is overmodulated.
The Sennheiser transmitter range includes many models which transmit battery status information. The EM 3031 and EM 3032 receivers are able to receive this status information. They display the remaining battery or accupack capacity of the transmitter in %. When the battery is going flat and the remaining capacity lasts for only 20 to 30 minutes of operation, the “LOW BATT” warning on the display starts flashing. You should immediately replace the transmitter battery.
Using the cable grip for the mains cable
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EM 3031 |
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EM 3032 |
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7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
7 Fuse holder and mains voltage selector
8 Mains connector
9 Squelch control
10Cable grip
11Service interface (not used during normal operation)
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
9 |
11 12 13 15 |
12Balanced XLR-3 audio output
13AF level control for audio output
14Antenna socket B
15Antenna socket A
Operating controls of the EM 3031 and EM 3032 – back panel
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