In general, the electrical characteristics of circuits associated with high-frequency instruments vary significantly with time. Signal sources, receivers, and interconnections drift with vibrations, cable flexing, temperature, humidity, and so forth. That’s why vector network analyzers (VNAs) are only treated as being time-invariant over short time periods (a few hours). Thus a VNA must be calibrated […]
Test and Measurement Tips
New CAN-USB/3-FD module handles data transfer with CAN or CAN FD
A CAN USB module from esd electronics now supports CAN FD. Data rates of up to 8 Mbit/sec can be transmitted via CAN FD and USB 2.0 with the USB 2.0 interface in use being designed for 480 Mbit/sec. The module has a solid and small aluminum housing with status LEDs in the front. It […]
Analyzer performs USB4 compliance tests
A USB4 compliance test option for the Voyager M4x analyzer and exerciser system can be used in conjunction with the USB Implementers Forum’s (USB-IF’s) USB4 Command Verifier (USB4-CV) software to generate traffic conditions and verify responses for the official USB4 logical, protocol, and tunneling layer compliance test specifications. USB4 combines the simplicity of the USB […]
New facility for over-the-air automotive testing
A new company called AeroGT Labs Corp. will provide OTA test and measurement products and offerings with a particular focus on the intelligent connected vehicles, consumer electronics, and satellite and terrestrial instruments segments and verticals. Located in Fremont, Calif., AeroGT is a joint venture by Over-the-Air (OTA) measurement firm General Test Systems (GTS) in China […]
The case for buying a used oscilloscope
Not all test labs need oscilloscopes sporting 1 GHz bandwidths and multi-million-point digital waveform recording. When the needs lean more toward the basic side, used scopes can sometimes fit the bill and do so economically. Here are a few points to consider before ponying up for a used scope. The go-to website for used equipment […]
The difference between amplifier gain and antenna gain
Amplifier and antenna gain may sound the same, and both may be expressed in decibels, but they actually are measures of two different things. In an amplifier, gain is simply the ratio of the output divided by the input. Gain has no units as it is a ratio. However, amplifier gain is often expressed in […]
800G Ethernet test gear now supports multimode interfaces for data centers
A portfolio of high-speed digital 800G test solutions now enable the optical transceiver ecosystem to improve the power efficiency of components and modules used in data center equipment. Hyperscale data centers are adopting 800G, the latest data center connectivity technology, to address a rise in the use of cloud-native, 5G, artificial intelligence (AI) and internet […]
Five-in-one high-end oscilloscopes sport four channels at 3/5 GHz bandwidth
The new multifunctional high-end, four-channel DS70000 Series Oscilloscopes. The DS70304 (3 GHz) and DS70504 (5 GHz) offer a sample rate up to 20 GSa/sec, and a deep 2 GPts memory depth is available to acquire and process large amounts of data. The signal acquisition rate of up to 1 Mwfms/sec enables non-stop real-time recording and […]
Rack-mount remote spectrum monitors handle frequencies to 43.5 GHz
The MS27201A Remote Spectrum Monitor series includes the industry’s first remote spectrum monitor that covers 43.5 GHz to support new satellite downlink bands. Combining high RF performance with supporting PC software, the MS27201A series delivers long-term monitoring in a variety of commercial and regulatory environments. The MS27201A series includes 9 GHz and 20 GHz remote […]
MIL rugged rackmount SOSA-aligned chassis features advanced cooling
A new 6U tall 19-in rackmount chassis for 3U OpenVPX and SOSA aligned boards is designed specifically for the high-power requirements of solutions that are aligned to the SOSA technical standard. The rugged rackmount chassis supports up to 16 conduction-cooled modules per SOSA requirements and VITA 48.2 specifications. A specialized card mat set diverts heat […]