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Transmission LIne
See Also: Transmission Line Pulse
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Transmission Line Probes
Transmission line probes are a special type of passive probe designed for use at very high frequencies. They replace the high impedance probe cable found in a traditional passive probe with a precision transmission line, with a characteristic impedance that matches the oscilloscope input (50 Ohm). This greatly reduces the input capacitance to a fraction of a picofarad, minimizing the loading of high frequency signals. A matching network at the tip increases the DC input resistance. While they have lower DC input resistance than a traditional passive probe (usually 500 Ohm) to 1kOhm), the input impedance of these probes remains nearly constant over their entire frequency range. A traditional /10 passive probe will have a 10 MOhm) input impedance at DC, however this impedance drops rapidly with frequency, passing below the input impedance of a transmission line probe at less than 100 MHz.
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PCB Transmission Line Field Solver
Si9000e
With its fast, accurate, frequency-dependent transmission line modelling, the new Si9000e is designed to model transmission line loss, impedance at given frequencies and extract full transmission line parameters over a wide range of popular PCB transmission lines (over 90 structures).
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Transmission Line Pulse Testing
Transmission Line Pulse testing, or TLP testing, is a method for semiconductor characterization of Electrostatic Discharge (ESD) protection structures. In the Transmission Line Pulse test, high current pulses are applied to the pin under test (PUT) at successively higher levels through a coaxial cable of specified length. The applied pulses are of a current amplitude and duration representative of the Human Body Model (HBM) event (or a Charged Device Model – CDM – event in the case of Very Fast TLP, or VF-TLP).
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Transmission Line Parameter Test System
HTXL-Y / 421
Wuhan Huatian Electric Power Automation Co., Ltd.
Field test of various high-voltage transmission line power frequency parameters of high-precision test instruments.
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Advanced Line Protection System
ALPS
ALPS is a multi-function digital protective relay system intended toprovide distance protection for HV or EHV transmission lines. It maybe applied on or adjacent to series compensated lines. It is availablefor single or three phase tripping applications. Typical operatingtimes are to 1 cycle.
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LXI WTB Extender
60-984-001
The 60-894 provides a simple an effective method of joining two LXI WTB bus cables together to extend the length of available cables. It is an ideal solution for cable extension where users need to experiment with different cabling solutions without having to totally replace the cables in the system. The 60-894 provides mating connectors for the WTB on each end connected together by a set of accurate differential transmission lines to avoid additional reflections on the cable. The 60-894 is entirely passive and is compatible with the LXI specification.
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LXI 2.4GHz 50ohm 32x8 Matrix
60-771-001
The 60-771 is a family of integrated RF matrices suitable for use up to 2.4GHz in a 50 ohm transmission line system. The matrix design permits any single Y input to be connected to any single X input, permitting the concurrent connection of 8 RF paths. All signal paths are bi-directional permitting any connection to be used as an input or an output.
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NI-9775 , ±10 V, Up to 20 MS/s/ch, 14-Bit, 4-Channel C Series Digitizer Module
784539-01
The NI-9775 provides referenced single-ended analog inputs with two timing modes for applications such as fault detection in electrical transmission lines or structural failure events. You can use the NI-9775 to measure finite samples up to 20 MS/s/ch to capture fault detections or to measure continuously at up to 4 MS/s. You also can use the built-in analog reference trigger to assist with high speed phenomena. Additionally, the NI-9775 supports waveform streaming at a lower sample rate.
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Coaxial Waveguide Adapter, 2.4 mm (f), 26.5 to 40 GHz
R281A
The Keysight R281A adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.3.
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Directional Coupler
DCZ-XXE/Y
The DCZ-XXE/Y directional couplers are used for extracting or introducing RF power flow in a transmission line withoutdistortion of signal characteristics. The directional couplers are available in 3, 6, 10, 15, 20 dB coupling values and30 - 35 dB minimum directivities*. 4-ports directional couplers are available in bi-directional (BDC4-XXE/Y) and dual-directional(DDC4-XXE/Y) configurations.
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Shielding Effectiveness/ Conductivity Test
EM-2107A | 30 MHz – 1.5 GHz
The EM-2107A is a standard test fixture for evaluation of the electromagnetic shielding effectiveness of planar material. The fixture is an enlarged section of coaxial transmission line and complies fully with the requirements of ASTM test method D4935-1. The measured data relates to the shielding effectiveness due to a plane wave (far field EM wave) from which near field values for magnetic and electric fields may be inferred. The EM-2107A is provided with a reference standard test specimen, a dynamic range specimen. Dynamic range of greater than 80dB is achievable, although the cables and other test system components usually establishes the limiting factors.
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Coaxial Waveguide Adapter, APC-7, 12.4 to 18 GHz
P281C
The Keysight P281C adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.3.
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Transmission Line Testers
GAOTek provides affordable, safe and reliable transmission line testers, digital clamp meters and power meters for sale to the United States, Canada and Globally. A transmission line is a specialized cable designed to conduct alternative current of radio frequency. Transmission lines are used for connecting radio transmitters and receivers with their antenna to distribute signals.
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OTDR
Shenzhen Sharingtek Communication Co., LTD
Is an optoelectronic instrument used to characterize an optical fiber. It is the optical equivalent of an electronic time domain reflectometer which measures the impedance of the cable or transmission line under test.
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LXI 2.4GHz 50ohm 24x8 Matrix
60-771-002
The 60-771 is a family of integrated RF matrices suitable for use up to 2.4GHz in a 50 ohm transmission line system. The matrix design permits any single Y input to be connected to any single X input, permitting the concurrent connection of 8 RF paths. All signal paths are bi-directional permitting any connection to be used as an input or an output.
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Power Transmission Line Inspection System
Shandong Senter Electronic Co., Ltd
With the aid of high-end technology and equipment, Senter Electronic manufactures and trades high-tech power transmission line inspection system with low price. And we are known as one of the leading such manufacturers and suppliers in China for our quality products and good service. Welcome to buy the power transmission line inspection system with our factory.
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LXI 2.4GHz 50ohm 24x16 Matrix
60-770-002
The 60-770 is a family of integrated RF matrices suitable for use up to 2.4GHz in a 50 ohm transmission line system. The matrix design permits any single Y input to be connected to any single X input, permitting the concurrent connection of 16 RF paths. All signal paths are bi-directional permitting any connection to be used as an input or an output.
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PCB Track equipotential viewer
EPD100
The EPD100 can plot equipotentials on single ended microstrips, and also edge coupled surface microstrips. It allows you to view the equipotential lines around a transmission line.
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Cable Fault Locating Equipment
Commonly used to test underground coaxial and twisted pair cabling, along with transmission lines and other industrial electrical cables.
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High-Power Directional RF Wattmeters
81600-A Series
The 81600-A series of High-Power Directional RF Wattmeters are designed to measure RF power in 50-Ohm 6-1/8 inch coaxial transmission lines. The RF power is directly displayed on the 4-1/2 inch triple scale meter.
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Insulation Resistance Meter
AMIC-15k1
*The partial discharge indicator PDI.*Diagnosis of insulation systems based on standard measurements of IR, DAR, PI, SV, RT, DD*Allows to test the electrical durability of the tested object - indication of breaking voltage.*The high resistance to electromagnetic interference ensures uninterrupted operation in power plants and near high-voltage transmission lines up to 1200 kV AC and 500 kV DC.
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ESD Testing & Latch-Up Testing Services
EAG is an industry leader in ESD testing (Electrostatic Discharge) and Latch up testing. Our highly experienced engineering team use their industry leading knowledge and years or real world experience of the latest semiconductor technologies, circuit design, and device physics to optimize our customer's ESD and latch-up results. Human Body Model (HBM) and Machine Model (MM), Charged Device Model (CDM), Latch-up, Transmission Line Pulse (TLP).
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Coaxial Waveguide Adapter, 1.85 mm (m), 40 to 60 GHz
U281B
The Keysight U281B adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.3.
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Coaxial Waveguide Adapter, APC-7, 8.2 to 12.4 GHz
X281C
The Keysight X281C adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.3.
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(125×150×20mm) C-Band DWDM Line EDFA Module
WLA4200-FM05
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai WLA4200-FM05 series is a gain flatness line EDFA Module which is specifically designed for C-Band 44 channels optic transmission system. It adopts the most excellent optical performance, the most advanced electronic control technology and the most complete software functionalities; it is featured with wide working wavelength range, low noise and excellent gain flatness. WLA4200-FM05 is mainly installed in middle of transmission line, replacing the traditional relay, to compensate the optical power loss in the line and extend the optical signal transmission distance
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Wattchman RF Station Monitor/Alarm Systems
81090
The Coaxial Dynamics Wattchman Monitor/Alarm measures forward and reflected RF power simultaneously in 50-Ohm coaxial cables and transmission lines. It is compatible with our entire series of 7/8" through 6-1/8" Line Sections and will accept plug-in elements that range from 5 watts to 100 kW full scale from 0.45 MHz to 2300 MHz.
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Balanced Measurements
The unbalanced interface of a VNA is not very well suited for measuring balanced circuits like antennas, transmission lines or chip impedances. In fact it is nearly impossible to get a decent calibration on a balanced 2-port measurement using coax cables.
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Pulse generator
9355-1
Solar Model 9355-1 Pulse Generator is designed to provide impulse excitation by means of an injection probe placed around interconnecting cables or power wires. The unit uses a charged transmission line (50 ohms) to generate a pulse with less than 2 nanoseconds rise and fall time, and duration of approximately 30 nS, calibrated in a 50 ohm fixture to deliver up to 5 amperes at a rate of 30 p.p.s. for one minute as required by MIL-STD-461D/E, test method CS115.
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Coaxial Waveguide Adapter, 1.85 mm (f), 50 to 67 GHz
V281A
The Keysight V281A adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.3.
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Magic Tee
MHTXE
The MHTXE Magic Tee Hybrid Couplers for millimeter waves are matched power dividers for variety of applications (general purpose power splitters, power combiners, phase measurement circuits, phase / frequency discriminators). The MHTXE Magic Tee Hybrid Couplers are available in waveguide bands between 33 and 170 GHz. These couplers are four-port transmission line components with a port configuration as shown in figure. Operation bandwidth is limited to 20÷90% waveguide operation frequency range depending on performance specifications.
