R&S®EM100 Digital Compact Receiver

Compact radiomonitoring from 9 kHz to 7.5 GHz

Overview
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Key Facts

Fast panorama scan with up to 1.8 GHz/s across the entire frequency range from 9 kHz to 7.5 GHz
10 MHz IF spectrum and demodulation with bandwidths from 150 Hz to 500 kHz

Brief Description

The R&S^®EM100 digital compact receiver has been specifically designed as a cost-efficient mobile radiomonitoring solution.

Features

High receiver sensitivity, high signal resolution
Retrieval of information through demodulation and operation as handoff receiver
Monitoring receiver and signal analysis in a compact system

Specifications

Model	Frequency Range
base unit	9 kHz to 3.5 GHz
with R&S^®EM100-FE option	9 kHz to 7.5 GHz

Key Facts

Fast panorama scan with up to 1.8 GHz/s across the entire frequency range from 9 kHz to 7.5 GHz
10 MHz IF spectrum and demodulation with bandwidths from 150 Hz to 500 kHz
Automatic bearing information of emissions with direction finding algorithms (20 MHz to 6 GHz)
Spectrum and spectrogram (waterfall) display via the R&S^®EM100-Control software
Synchronization of receiver frequency and time using the R&S^®ESMD-IGT internal GPS module
High-accuracy timestamps in I/Q baseband data stream for use in TDOA systems
LAN interface for remote control and data output
Low power consumption for long-term operation from an autonomous power source
Space-saving system integration due to ½ 19" width and one height unit
Classification and analysis of signals up to 500 kHz bandwidth (analog and digital modulation) using the R&S^®CA100 software
Low weight (approx. 2.5 kg)

Brief Description

The R&S^®EM100 digital compact receiver has been specifically designed as a cost-efficient mobile radiomonitoring solution. The receiver’s operation via remote control software and its monitoring functionality have been optimized for tasks requiring a handoff receiver in combination with a high-speed search receiver, for example. In addition, it can be used for a variety of other applications.

The R&S^®EM100 digital compact receiver has an excellent feature set for monitoring transmissions, detecting interference, locating miniature transmitters or even functioning as a handoff receiver. In addition, it is extremely compact and consumes very little power. The R&S^®EM100 is the optimum solution for systems with tight budgets, combining cost efficiency with technical capabilities that yield the desired results. When combined with analysis software (such as R&S^®CA100), it provides users with a compact receiving and analysis system covering a wide frequency range from 9 kHz to 7.5 GHz.

The receiver can be operated with diverse antennas such as broadband omnidirectional antennas and directional antennas.

Despite its compact design, the entry-level R&S^®EM100 receiver offers a wide range of functions otherwise available only in equipment in higher price segments. Its favorable price/performance ratio makes it an indispensable instrument for all types of radiomonitoring tasks where space-saving integration and cost efficiency are crucial.

Due to its compact size and low weight, the R&S^®EM100 is ideal for use in vehicles, aircraft (as a payload) and unmanned aerial vehicles (UAV).

Features & Benefits

High receiver sensitivity, high signal resolution
- State-of-the-art digital signal processing for high receiver sensitivity and detection of extremely weak signals without any loss in processing speed
- Significantly superior receiver sensitivity and signal resolution (compared with conventional analog broadband receivers)
Retrieval of information through demodulation and operation as handoff receiver
- Analog-modulated signals demodulated directly in the receiver; contents audible using headphones
- Digitally modulated signals converted to the baseband by means of I/Q demodulation and exported via LAN
- Offline analysis of digital signals, e.g. with the R&S^®CA100 software
Monitoring receiver and signal analysis in a compact system
- Online LAN transfer from an R&S^®EM100 to a PC and to the R&S^®CA100 analysis software, for example, to operate an efficient small system for signal reception and analysis
- Recording of captured data using R&S^®CA100; provision of data for documentation, replay or subsequent additional evaluation
Efficient operation via remote control
- Remote control of all receiver functions via LAN interface (SCPI command set in line with IEEE 488.2)
- LAN interface for providing the maximum measured data rate during receiver operation; efficient remote operation in unattended monitoring stations (interface essential, especially for system integrators who need to incorporate the receiver into existing software environments)
Convenient R&S®EM100-Control remote control software
- Short learning curve due to straightforward menu structure and simple operation
- Parameterization of displayed signals (depending on task), optimum display on screen
- Remote control of receiver via PC, recording of measured data on hard disk, and replay of data on PC for analysis purposes
- Expansion of remote control software functionality through options and add-ons from the R&S^®RAMON software suite
DF functionality with R&S®EM100-DF upgrade kit

The R&S^®EM100 supports DF functionality when upgraded with the R&S^®EM100-DF upgrade kit. Using the patented Rohde & Schwarz single-channel correlative interferometer DF method (above 173 MHz), it provides DF accuracy and immunity to reflections comparable to that of direction finders with two or more receive paths. In the frequency range below 173 MHz, the Watson-Watt direction finding method is used. This method offers high DF accuracy even for small DF antennas. In combination with the R&S^®EM100-DF upgrade kit, the R&S^®EM100 becomes an accurate, compact and cost effective DF solution.

The R&S^®EM100 is combined with R&S^®ADD107 and R&S^®ADD207 compact DF antennas to provide users with a wide direction finding frequency range from 20 MHz to 6 GHz. Both the R&S^®ADD107 and R&S^®ADD207 compact DF antennas come with an integrated GPS system and an electronic compass that can be used to display DF results on a map. When used with the R&S^®ADD17XZ3 vehicle adapter with magnetic mount or the R&S^®ADD17XZ6 wooden tripod, the solution provides for quick and easy setup of DF stations and mobile direction finders.
Compact design and low power consumption
- Compact size and low weight for effective integration in small systems
- Particularly when installed in vehicles: compact design and low power consumption enable simultaneous operation of multiple R&S^®EM100, e.g. as handoff receivers
Future-ready investment
- Wide frequency range and outstanding performance
- Capable of receiving and processing signals of current and future radio services

Specifications

RF data
Frequency range	base unit	9 kHz to 3.5 GHz
	with R&S^®EM100-FE option	9 kHz to 7.5 GHz
RF input
Impedance		50 Ω
Preselection	9 kHz to 30 MHz	30 MHz lowpass filter
	20 MHz to 1.5 GHz	tuned bandpass filters
	1.5 GHz to 7.5 GHz	highpass/lowpass filter combination
IF data
IF spectrum display range		1 kHz to 10 MHz, 1/2/5/10/20/50/100/200/500 kHz, 1/2/5/10 MHz
Display modes		normal (clear/write), average, max. hold, min. hold
IF demodulation bandwidths	15 filters (specified values indicate 3 dB bandwidth)	150/300/600 Hz, 1.5/2.4/6/9/15/30/50/120/150/250/ 300/500 kHz
Demodulation modes	all demodulation bandwidths	AM, FM, PULSE, I/Q
	demodulation bandwidth ≤ 9 kHz	USB, CW
	demodulation bandwidth ≤ 9 kHz	LSB
	demodulation bandwidth ≤ 15 kHz	ISB
	demodulation bandwidth ≤ 9 kHz	CW
Scan modes
Frequency scan (FScan)	start and stop frequency, step width	user-selectable
	scan speed	up to 150 channels/s
Memory scan (MScan)	memory locations	1024, user-programmable
	scan speed	up to 150 channels/s
Panorama scan (PScan)	start and stop frequency	user-selectable
	resolution bandwidths (bin widths)	125/250/500/625 Hz, 1.25/2.5/3.125/6.25/12.5/25/50/100 kHz
	scan speed (RBW = 100 kHz, measurement time = 500 μs, IF spectrum = normal, clear/write, display mode = IF spectrum)	up to 1.8 GHz/s
DF mode
Frequency range		20 MHz to 6 GHz
DF method	20 MHz to 173 MHz	Watson-Watt
	173 MHz to 6 GHz	correlative interferometer

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