Product specification

EM 3732-II
The EM 3731/3732-II is a true diversity receiver that is charac-
terized by high transmission reliability, exceptional audio quality and simple
operation. The frequencies are adjustable in 5 kHz steps. Special features
include the DSP-based HiDyn plus expander and its transformer-balanced audio
outputs. The EM 3732 COM-II is also equipped with a command audio output.
The EM 3731/3732-II is available in L, N and P frequency range variants and as
a twin receiver (EM 3732-II) or single receiver (EM 3731-II).
Features
·
AES3 digital audio output with external word
clock synchronization
·
Switching bandwidth up to 184 MHz
·
Integrated antenna splitter for daisy-chaining
up to 8 devices
·
Intuitive user interface with OLED display
·
Network integration via Ethernet for WSM
software on Macs and PCs
The “Wireless Systems Manager” (WSM) soft-
ware for Macs and PCs enables the monitoring
and control of all device parameters during live
performances. This software can be downloaded
free of charge at www.sennheiser.com.
Architects Specifications
A true diversity receiver with a high
switching bandwidth should ensure
maximum flexibility and reliability
during live performances.
The display should be clearly laid out
and easy to operate. It should be pos-
sible for all settings to be carried out
centrally on the device using a jog dial.
It should be possible to cascade (daisy-
chain) up to 8 devices using an integrated
antenna splitter. The digital output
according to the AES3/EBU standard
must allow for the direct connection
to digital mixing consoles. The receiver
must be compatible with Sennheiser’s
3000 and 5000 systems.
Technical Data
RF CHARACTERISTICS
Receiver principle ..............True diversity
Frequency ranges .............. L: 470 – 638 MHz
N: 614 – 798 MHz
P: 776 – 960 MHz
Switching bandwidth . . . . . . . . . . Up to 184 MHz
Receiving frequencies .......... 6 frequency banks, each with up to 59 factory-preset
channels, 1 frequency bank with up to 60 freely tunable
channels (in 5 kHz steps)
Frequency stability . . . . . . . . . . . . ≤ ±2.5 ppm
Sensitivity ....................
typ. 1.5 μV for 52 dBA rms S/N (with HDP, peak deviation)
15 μV for 115 dBA rms S/N
Adjacent channel rejection/
spacing typ . . . . . . . . . . . . . . . . . . . 75 dB / ±400 kHz
80 dB / ±800 kHz
Intermodulation attenuation ....≥ 80 dB
Blocking ......................≥ 80 dB
Squelch. . . . . . . . . . . . . . . . . . . . . . . 13 steps (0 … 30 μV)
Antenna inputs . . . . . . . . . . . . . . . 2 BNC sockets (50 )
Daisy chain outputs ............2 BNC sockets (50 )
Gain . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 dB ±0.5 dB (ref. to antenna inputs)
Continued on page 2
Variants
EM 3731-II L, 470 - 638 MHz Cat.No. 504073
EM 3731-II N, 614 - 798 MHz Cat.No. 504074
EM 3731-II P, 776 - 960 MHz Cat.No. 504075
EM 3732-II L, 470 - 638 MHz Cat.No. 504076
EM 3732-II N, 614 - 798 MHz Cat.No. 504077
EM 3732-II P, 776 - 960 MHz Cat.No. 504078
EM 3732 COM-II L, 470 - 638 MHz Cat.No. 504079
EM 3732 COM-II N, 614 - 798 MHz Cat.No. 504080
EM 3732 COM-II P, 776 - 960 MHz Cat.No. 504081
Recommended Accessories
AB 3700, broadband antenna booster Cat.No. 502196
AD 3700, directional antenna Cat.No. 502197
A 3700, omni-directional antenna Cat.No. 502195
GZL AES 10, AES3 cable Cat.No. 502432