E4407B ESA-E Spectrum Analyzer 9KHz-26.5GHz
•0.4 dB overall amplitude accuracy
•-167 dBm DANL, with internal preamp
•Phase Noise, Noise Figure, GSM/EDGE, cdmaOne and more view full list of measurement applications
•PowerSuite one-button power measurements included as standard
•10 MHz analysis bandwidth
•Segmented sweep for up to 32 discontinuous spans in one sweep
•Rugged and portable for lab grade performance in the field
•5 minute warm-up to guaranteed measurement accuracy
Packaging & Shipping
Pack the instrument with PE bubble bag
Foam-in-place to protect the instrument
Fasten the carton with Belt
Pack the carton with PE film to waterproof
All values are in USD and do not include the customs duties & taxes and other surcharges.
The instrument will ship out within 5 days upon payment received.
We usually choose FedEx/DHL International Economy. Other shipment way is also acceptable.
30days warranty, No ROR
During the warranty date, the buyer can return the item if have quality problem.
If you want to return the instruments, the return item has to be the original packing. Without my permission, the instrument cannot be dismantled.
You are responsible for returning the item and paying for return shipping. The payment for the freight cost will not return. Only payment for the instrument will be refund.
The refund will complete within 7 working days after we receive the return items
How to use digital oscilloscope to distinguish analog bandwidth from digital real - time bandwidth？
Bandwidth is one vital index of oscilloscope. Bandwidth of analog oscilloscope is one certain value, however, bandwidth of digital oscilloscope has two kinds, analog bandwidth and digital real-time bandwidth. Digital oscilloscope to repeating the signal in a sequential sampling and random sampling technology can achieve the maximum bandwidth of the oscilloscope digital real-time bandwidth, real-time digital bandwidth and the highest frequency and digital waveform reconstruction technology related factor K = (digital real-time bandwidth digital highest rate/K), generally not directly given as an indicator. It can be seen from the definition of the two kinds of bandwidths that the analog bandwidths are only suitable for the measurement of repeated periodic signals, while the digital real-time bandwidths are suitable for the measurement of repeated signals and single signals at the same time.
The manufacturer Zhengzhou Defy claims the bandwidth of oscilloscope can achieve how many megabytes, it is analog bandwidth actually, digital real time bandwidth is below this value. For example, if the bandwidth of an oscilloscope is 500MHz, it actually means that its analog bandwidth is 500MHz, while the highest digital real-time bandwidth can only reach 400MHz, which is much lower than the analog bandwidth. Therefore, when measuring a single signal, it is necessary to refer to the digital real-time bandwidth of the digital oscilloscope, otherwise it will bring unexpected errors to the measurement.
Principle of handheld oscilloscope
A hand-held oscilloscope USES a narrow beam of high-speed electrons to produce tiny points of light on a screen coated with fluorescent material. Under the action of the measured signal, the electron beam ACTS like the tip of a pen and can draw the curve of the instantaneous value of the measured signal on the screen.The use of oscilloscope can observe various different signal amplitude changes with time waveform curve, but also can use it to test a variety of different electricity, such as voltage, current, frequency, phase difference, adjustment amplitude and so on.
How to choose handheld oscilloscope?
Select handheld oscilloscope mainly pay attention to several indicators, bandwidth, storage depth, sampling rate, waveform update rate, isolation channel, display, language, easy operation, and some other kinetic energy (waveform recording, 232/422/485/CAN/I2C/SPI bus decoding) bandwidth: bandwidth is 100M, 200M commonly now, since buy at least buy 100M, each manufacturer is about the same; Storage depth: this various manufacturers vary from 10K to dozens of M have, in general, a few hundred K is enough, too small waveform expansion can not see, square wave are changed into triangular wave. Sampling rate: as long as this index reaches more than 5 times of the bandwidth, all manufacturers have basically reached; Waveform update rate: this index is also a very important index, waveform update rate is too low will lead to some abnormal signals can not be seen; Isolation channel: in the handheld oscilloscope, this is very important, can reduce the risk of accidental short circuit, electric shock, etc., can also reduce the parasitic capacitance during testing, etc., but fortunately, most manufacturers are isolated.