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Lab Brick® LMS Signal Generators

Lab Brick® LMS Signal Generators

0.5-20 GHz, High Performance Programmable Signal Generators

USB powered and controlled

• Includes easy to install and use GUI

• Fast switching to 20 GHz

• Selectable internal/external 10 MHz reference

• Phase continuous frequency sweep (LFM)

• High-speed internal and external pulse modulation

• Autonomous operation from USB hub or battery pack

• Robust aluminum construction

• API DLL and LabVIEW compatible drivers available




Lab Brick® LMS Signal Generators series of USB-compatible, synthesized signal generators cover a frequency range from 0.5 MHz – 20 GHz with low noise, fast 100-microsecond switching time, and fine 100 Hz frequency resolution. They require no additional DC supply voltage and offer advanced features such as phase-continuous linear-frequency sweeping, internal/external 10 MHz reference, and optional pulse modulation. GUI software can track and control several connected signal generators, simplifying multiple-signal test setups. Each device stores settings in internal memory, allowing it to power up in a specific instrument state.

Each device comes with a USB flash drive containing the GUI software and digital version of the programming guide, along with a 3-ft. USB cable. It measures 4.90 x 3.14 x 1.59 in. (124 x 80 x 40 mm.) and weighs less than 1 lb. (0.45 kg). In non-USB applications, the Lab Brick® signal generators can operate with battery power or remote power supply. For automatic-test-equipment (ATE) applications, a programming guide is available for each Lab Brick® signal generator. In addition, they are programmable by means of LabVIEW software drivers from National Instruments (www.ni.com). Lab Brick® LMS Signal Generators

Lab Brick® synthesized signal generators comply with international requirements for electromagnetic-compatibility (EMC) emissions and immunity for Class A ISM devices to ensure that they don’t interfere with other ISM-band equipment. All Lab Brick LMS signal generators are ROHS-compliant and can be used with any PC or laptop computer with USB 2.0 port (or powered USB hub) and Windows 2000, XP, Vista, or Windows 7 operating system. Lab Brick® LMS Signal Generators


Standard Models1

LMS-271D 0.5 – 260 MHz
LMS-232D 0.5 – 2.3 GHz
LMS-402D 1.0 – 4.0 GHz
LMS-602D 1.5 – 6.0 GHz
LMS-802 4 – 8 GHz
LMS-802DX 2 – 8 GHz
LMS-103 5 – 10 GHz
LMS-123 8 – 12 GHz
LMS-163 8 – 16 GHz
LMS-183DX 6 – 18 GHz
LMS-203 10 – 20 GHz
Phase Noise at 10 kHz/100 kHz Offset
LMS-232D -98/-105 dBc/Hz
LMS-402D -98/-105 dBc/Hz
LMS-602D -85/-94 dBc/Hz
LMS-802 -81/-89 dBc/Hz
LMS-802DX -85/-93 dBc/Hz
LMS-103 -81/-89 dBc/Hz
LMS-123 -77/-86 dBc/Hz
LMS-163 -75/-83 dBc/Hz
LMS-183DX -75/-83 dBc/Hz
LMS-203 -75/-83 dBc/Hz
Resolution 100 Hz
Accuracy +/- 2ppm
Switching 100 microseconds
Output Power
Range: LMS-802, LMS-103, LMS-123, LMS-232D, LMS-402D, LMS-602D +10 – -40 dBm
LMS-802DX, LMS-183DX (6-13 GHz) +10 – -70 dBm  2
LMS-163, LMS-203 +10 – -30 dBm
Resolution 0.5 dB
Accuracy +/- 0.75 dB at +10 dBm
+/- 2.0 dB full range  3
Typical -80 dBc
Maximum -70 dBc
VSWR 1.5:1
Typical – LMS-802DX, LMS-183DX (see plots) -40 dBc
Typical – All others -20 dBc
LMS-802, LMS-103, LMS-123, LMS-183DX -60 dBm
LMS-163, LMS-203 -25 dBc
LMS-232D, LMS-402D, LMS-602D,


Selectable Internal/External Reference
Frequency 10 MHz
Input Level 500 mV to 3V peak to peak
Output Level (LMS-802DX, LMS-183DX only) 1.5V peak to peak
Phase-Continuous Linear-Frequency Sweep (LFM)
Sweep Time 1 ms to 1000 seconds
Sweep Direction Up, down, bidirectional
Optional Pulse Modulation
Pulse Depth
LMS-802, LMS-802DX, LMS-103, LMS-123, LMS-232D, LMS-402D, LMS-602D, LMS-183DX -70 dBc typical, -60 dBc min.
LMS-163, LMS-203 -45 dBc typical, -35 dBc min.
Rise/Fall Time 30 ns typical
Internal Pulse Mode
Pulse Width 100 ns min.
PRI 100 ns plus pulse width min.
Resolution 100 ns
Trigger Output 0 to 5 volts
External Pulse Mode
Pulse Width 100 ns min.
PRI 100 ns plus pulse width
Trigger Input 0 to 5 Volts nom., 0 to 3 Volts min.
DC Current Via USB
LMS-802, LMS-103, LMS-123, LMS-232D, LMS-402D, LMS-602D 5 volts – 300 mA
LMS-163, LMS-203 550 mA
LMS-802DX 5 volts – 600 mA
LMS-183DX 5 volts – 650 mA
RF Connector SMA-female
USB Connector B-female
Dimensions 4.90 x 3.14 x 1.59 in.
(124 x 80 x 40 mm)
Weight ≤ 1.0 lbs. (≤ .45 kG)
Mounting Holes (2) #6 socket-head screws
(not included)
Available Options
Opt 003 Pulse Modulation
Opt 004 Frequency Sweep Trigger
GUI Compatibility Windows XP/2000/7/8/10
Included Accessories USB Flash Drive with GUI Software &
User Manual/Programming Guide/Window DLL/Linux driver/LabVIEW driver/3-ft. USB Cable
1 Customized models are available tailored to specific performance requirements. Specifications are subject to change without notice.

2LMS-183DX – Output Power range above 13GHz is +10 – -55 dBm minimum

3LMS-802DX and LMS-183DX – +/- 2.5dB Accuracy

Applications include:

• Automated Test Equipment (ATE)

• Portable LO Source

• Engineering/Production Test Lab


Lab Brick® LMS Signal Generators


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About ACA TMetrix Inc.

ACA TMetrix Inc. is a leading supplier of test instruments and design tools in Canada. For over 50 years we have provided services and support for products that are manufactured by the world's leading instrument suppliers.

TMetrix Ltd. is Part of the ACA Group of Companies. Allan Crawford Associates (ACA), is one of Canada's largest distributors of electronic components, test equipment, and scientific solutions.

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