Reference Transmitters
high quality optical transmitters for test and measurement.
See Also: References, Reference Standards, Reference Antennas, Reference Decoders, Reference Jumpers, Reference Sources, Reference Transformers, Acoustical References, Frequency References, Solar Reference Cells, Fiber Optic
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PAM4 Optical Reference Transmitters
ModBox-PAM4 series
The ModBox-PAM4 serie is a 4-level Pulse Amplitude Modulation (PAM4) Optical Reference Transmitters that generate excellent quality PAM4 optical data streams up to 28 Gbaud, 56 GBaud. The ModBox-PAM4 integrates also: ER4 / LR4: CWDM or LAN-WDM 4 lasers sources, SR4: 850nm laser source, PON: 1310 nm and 1490 nm laser sources.
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Optical Receiver Stress Test Solution
N4917B
The N4917B software provides an automated standard compliant stressed receiver sensitivity test according to 100GBASE-LR4, ER4 and SR4 test specification. In order to do this kind of test, several test instruments such as a bit error ratio tester, digital sampling oscilloscope, optical reference transmitter and tunable laser source are required to operate together to achieve a compliant, repeatable optical stressed eye. This stressed eye is then fed to the receiver under test, where bit error ratio is measured under the stress conditions as defined in the standard.
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Reference Transmitter
81491A
Keysight's 81491A Reference Transmitter is designed to offer excellent eye quality for NRZ and PAM4 signals at baud-rates up to 32Gbaud and can serve as universal E/O converter. It comes in Multimode (MM) and Single-Mode (SM) flavors and includes internal lasers at 850nm (MM) or 1310&1550nm (SM). External optical input for usage with tunable laser sources is available for SM option. It is fully integrated into Keysight’s Optical Receiver Stress Test solutions to address test requirements of IEEE 802.3 10,40,100 and 400GBASE optical standards.
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Transmitters
We offer reference transmitters for both digital and linear applications, calibrated electrical-to-optical converters for use with VNAs, and optical transmitters with phase modulators. These devices are based on proven lithium niobate (LiNbO3) modulator technology driven by high-fidelity RF amplifiers.
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Reference Transmitter
81492A
Keysight's 81492A Reference Transmitter is designed to offer excellent eye quality for NRZ and PAM4 signals at baud-rates up to 56 Gbaud and can serve as universal single-mode E/O converter. In addition to the internal lasers at 1310 & 1550 nm, an external optical input for usage with tunable laser sources is available. It is fully integrated into Keysight’s Optical Receiver Stress Test solutions to address test requirements of IEEE 802.3 10,40,100 and 400GBASE optical standards.
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High-Speed, Fiber-Optic Reference Transmitters
Thorlabs' Reference Transmitters are designed for high-speed fiber optic test and measurement applications. They are fully-integrated and user-configurable solutions based on proven lithium niobate (LiNbO3) modulator technology driven by high-fidelity RF amplifiers.
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Coherent Modulation Transmitter
IQTX
Generating and controlling phase modulated optical signals is easy with the IQTX. The IQTX is referred to as a ‘Golden’ reference optical signal source because of its high repeatability and reliability.Its high bandwidth of 40 GHz ensures high quality optical signal generation, making it the ideal optical signal source for coherent communications applications.
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AC Reference Modules
NAI offers a variety of AC reference modules that provide a drive capability to 5 VA. The units are transformer-isolated and operate over a frequency range from 47 Hz to 10 kHz. These modules are specifically designed for rugged defense, commercial aerospace, and industrial applications.
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E-Band Signal Analysis Reference Solution
The E-band signal analysis reference solution provides an effective measurement solution for today’s wideband signals as well as emerging communications standards. With the M1971E waveguide harmonic mixer, which provides a 55 to 90 GHz input; Keysight oscilloscopes, which provide excellent signal integrity; and the powerful 89600 VSA software, you have a high-quality wideband measurement solution. A simple user interface also provides integrated mixer setup, correction and LO optimization, allowing for accurate measurements.
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Reference Antennas
Type NRD
Reference antennas are precision dipole antennas that offer a fixed 2.15 dB of gain over an isotropic antenna along the major lobe axis at specified frequencies (2.15 dBi). They are intended to be used for antenna field pattern and gain measurements, or general RF sensing in the laboratory.
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Reference Oscillator
REF Series 1.5” x 1.5” x 0.6”
*Connectorized Package *Free Running *Low Phase Noise *Output Power to +12 dBm Available
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Reference Meter
SB1300
Shenzhen Star Instrument Co., Ltd.
The SB1300 three-phase multi-function reference meter incorporates 32-bit floating point DSP, wide-range measuring and embedding industrial PC technologies. This model was the first approved by China National Institute of Metrology. Star Instrument has been granted the first manufacturing license for class 0.02 reference meters. Basic measuring range (phase voltage): 1V~480V, current measuring range: 1mA~120A; wide measuring range (phase voltage): 0.1V~1000V, current measuring range: 0.1mA~200A
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Reference Meters
Whether standard or high precision, ThermoWorks handheld meters feature rugged housing and best-in class accuracy across a variety of temperature ranges. Choose from integrated systems or meters that accept multiple probes, single or dual channel meters, alarms or reference models. Perfect for BBQ or sous-vide applications, dairy processing and meat processing, pharmaceutical labs, concrete curing, health departments, and for line checks, critical control point management, and HACCP checklists.
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AC Reference Generators
SR23
Computer Conversions Corporation
The SR23 Series are miniature, low cost AC reference generators designed to supply 26 or 115 volt excitation (2-115VAC) to synchros or resolvers in military and industrial control applications. They accept +/-15V DC or +/-12V DC power inputs and provide up to 5VA of transformer isolated output power. These converters are packaged in PC card mounting modules 2.6”x3.1”x1”H.
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Reference Meter
ST1000
Shenzhen Star Instrument Co., Ltd.
The ST1000 three-phase reference meter incorporates high-precision A/D converter, DSP, wide-range measuring and embedding industrial PC technologies. It has a high accuracy of class 0.01. The voltage measuring range (phase voltage): 1V~480V, current measuring range: 1mA~120A.
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Transmitter
5081
The Model 5081 family of transmitters can be used to measure pH, ORP, conductivity (using either contacting or toroidal sensors), resistivity, oxygen (ppm and ppb level), free chlorine, total chlorine, and ozone in a variety of process liquids.
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AC Reference Generators
SR21
Computer Conversions Corporation
The SR Series are miniature, low cost AC reference generators designed to supply 26 or 115 volt excitation to synchros or resolvers in military and industrial control applications. They accept +/-15V DC and provide up to 5VA of transformer isolated output power. These converters are packaged in PC card mounting modules 2.6”x3.1”x1”H.
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Intelligent Time Reference
TM-4™and TM-4/OEM™
The Intelligent Reference/TM-4™ and TM4/OEM™ are multi- purpose, GPS disciplined timing signal generators and frequency references in economical off-the-shelf and custom configurations. Intended for use in a wide variety of timing, synchronization and frequency reference applications, they are based on the most advanced architecture Spectrum has ever offered, and include the most popular features of Spectrum's core platform for current timing products.
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Reference Measuring System
SMG-R
Reference peak voltage meter SMG-R for precise measurement of high voltage. This PEAK voltmeter has higher accuracy and the measuring divider has a very high stability.
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Micropower Voltage References
Analog Devices offers a broad line precision micropower voltage references with extremely low quiescent currents (series references) or minimum shunt currents (shunt voltage references). All of our precision voltage references offer excellent initial accuracy and low temperature drift over time and temperature. Our Reference Plus products combine precision voltage references with comparators or amplifiers.
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M2T Transmitter
The M2T half-rack transmitter houses two stereo transmitters to provide two stereo audio channels, and for up to four mono audio channels in a single rack space. The audio inputs can be individually configured to be analog or Dante compatible. The analog input connectors are full-size XLR/TRS combo types for balanced line-level analog signals while the input preamp circuits use a special balanced amplifier with very high common mode rejection to minimize hum and noise. A Dante™ Ultimo™ interface via dual RJ45 connectors accepts Dante networked audio inputs and can daisy chain the digital stream to additional units via CAT6 cables. An additional RJ45 jack provides an Ethernet connection for programming and control via Wireless Designer™ software and a USB jack on the front panel allows for firmware updates. The transmitter features a full color, backlit LCD for high visibility in any environment, while the chassis is all-metal and can be racked singly or in pairs using included rack mount hardware.
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Reference Magnets
Reference Magnets provide a stable and convenient method to verify the accuracy and calibration of Hall Effect Gaussmeters, Teslameters, and Probes.
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Master Reference Generator
Mentor
Precision Time Protocol IEEE-1588 PTP grandmaster• Multiple video and audio formats in one box• Simultaneous 525/625 and HD Tri Level Sync outputs• Highly accurate GPS reference for synchronisation and timecode• Vector web-browser setup and monitoring tool• Redundant PSU option• Add upgrades and options without return to factory• Generates synchronised audio and video• Redundant units with changeover• 4K test pattern ready (future upgrade)
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Shunt Voltage References
Analog Devices offers a broad line of shunt precision voltage references that combine excellent accuracy and temperature stability with low noise and small packages. These devices operate in a manner that is functionally equivalent to a Zener diode. The bias current must be set higher than the sum of the maximum quiescent current of the voltage reference and the maximum expected load current. Since shunt voltage references are typically biased with a resistor, the voltage reference can operate on a wide range of input voltages.
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CO Transmitter
DST1200
NDIR (non-dispersive infrared) waveguide technology CO measurement accuracy from 40ppm to 70ppm optional Varies measurement range available Optional analog signal or RS485 output Wide angle view LCD screen with CO readings in real time Toxicity and halogen free material, complying with GXP standard
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Conductivity Transmitter
DO9766T-R1
output of a conductivity electrode with temperature compensation into a 4÷20 mA signal.
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Transmitters
specially designed for monitoring the Indoor Air Quality in the air conditioning, heating, and ventilation industry. It has been updated to use the Premier Series cabling and probe connections.
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Universal Transmitter
Ut4623
Programmable via detachable Programming Unit (UT4624), process calibration, signal and relay simulation, password protection, errordiagnostics and selection of help text
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Voltage References
Maxim offers an industry-leading portfolio of shunt and series voltage reference ICs. We were the first to develop a series reference in a 3-pin SC70 and in chip-scale packaging. Our hundreds of voltage references include high-accuracy, low-power, low-noise, and automotive-grade products.
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RF Reference Sources
The 27 GHz 96270A and 4 GHz 96040A Low Phase Noise Reference Sources are designed specifically for RF calibration, featuring a calibration-oriented interface, precision signal level and attenuation, high signal purity and precision low distortion modulation. Both instruments simplify the process of RF calibration by reducing the amount of equipment and simplifying the calculations required.
