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
Signal reconstruction method adopted by oscilloscope
How to calculate the sampling rate? The calculation method depends on the waveform type measured and the signal reconstruction method adopted by oscilloscope, such as example sinusoidal insertion method, vector insertion method, etc. To reproduce the signal accurately and avoid confusion, the Nyquist theorem states that the sampling rate of the signal must be no less than twice its highest frequency component. However, the premise of this theorem is based on signals of infinite length of time and continuous period. Since oscilloscopes cannot provide a record length of infinite time, and low-frequency disturbances are by definition discontinuous and not periodic, sampling rates of twice the highest frequency components are usually insufficient.
In fact, the accurate reproduction of the signal depends on its sampling rate and the interpolation method of signal sampling point gap, namely waveform reconstruction.Some oscilloscopes provide the operator with the following options: sinusoidal interpolation for measuring sinusoidal signals, and linear interpolation for measuring rectangular waves, pulses, and other signal types.
A useful rule of thumb for comparing sample rates and signal bandwidths: if the oscilloscope you are looking at has interpolation (filtered to regenerate between sample points), the ratio (sample rate/signal bandwidths) should be at least 4∶1.Without sine interpolation, the ratio of 10∶1 should be adopted.
The oscilloscope selects different triggering functions according to needs
The trigger of the oscilloscope can synchronize the horizontal scanning of the signal at the correct position and make the signal characteristic clear.Trigger control buttons stabilize repeated waveforms and capture single waveforms.
Most of the oscilloscope for users to use only edge-triggered way, if you have other triggered ability is very useful in some applications, especially for the new design product fault search, advanced triggered concerns events can be separated and find out you are concerned about abnormal problem, thus the most efficient use of sampling rate and depth of the storage.
Today there are many oscilloscopes with advanced triggering capabilities.Trigger ability mainly around three aspects: (1) the vertical direction of the amplitude, example transient spike trigger, over pulse or short pulse trigger, etc.; (2) the horizontal direction and time related trigger, such as pulse width, narrow pulse, establish/hold time and other set time width trigger form; (3) the combination ability of extension and conventional trigger function. For example, for video signal or other signals that are difficult to capture, trigger conditions are set through the combination of time and amplitude to trigger. The improvement of the triggering ability CAN greatly improve the flexibility of the testing process and simplify the work. In particular, the triggering ability of the oscilloscope to the data bus is greatly improved, such as CAN, I2C, etc.