All Questions
Tagged with measurement frequency-measurement
26
questions
2
votes
0
answers
82
views
What are the disadvantages of crocodile (alligator) probes? [closed]
When measuring with an oscilloscope, I use an original high frequency oscilloscope probe and a double side crocodile (alligator) clip and the results are usually very close.
Note: it is called ...
- 69
0
votes
0
answers
108
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Two resonances in the admittance of capacitor C
I have this question that has been haunting me for a week now. I was given a measurement file of a previous student. Allegedly, they are the measurements of the admittance of a circuit that is ...
- 459
0
votes
1
answer
148
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How to identify the type of modulation and data rate of an RKE system transmission
Many devices that measure frequencies of key fobs, can inform, in addition to the frequency measurement, also the type of modulation, FSK or OOK, and the data rate in bps. Previously in this forum, I ...
- 917
1
vote
0
answers
47
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Steps for connecting femal-to-female sacrificial adaptor into a male connector in the RF measurement equipment
First of all, I am a newbie to the RF-mm-wave test equipments. I am trying to use this Agilent equipment shown in the image below where I want to connect a 1.85mm (F-to-F) sacrificial connector to the ...
- 1,652
0
votes
1
answer
181
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PWM signal not visible upon increasing the scope time base
I am capturing 2 different PWM signals.
The frequency of first PWM signal is lower when compared to the second one.
Please check the waveforms.
All the waveforms are taken of the same two signals. ...
user220456
0
votes
1
answer
295
views
Digital Frequency Measurement
The circuit in the figure below is a circuit for measuring frequencies for RKE systems (a key fob, for example). The frequencies for which this circuit was created, was used to measure frequencies ...
- 917
0
votes
0
answers
29
views
Low Pass Step and Low Pass Pulse sith Vextor Network Analyzer
I have an extremely basic question about time domain measurements with Vector Analyzer. It is something that is not explained in simple words in all datasheets/guides (maybe they think it is obvious ...
- 3,550
0
votes
1
answer
427
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FFT in oscilloscope measuring Frequency spectrum
I am using a Keysight InfiniiVision MSOX3054T Scope having Bandwidth of 500MHz and Sampling rate of 5Gsa/s.
I am learning to use the FFT Option in the scope.
Below is the waveform I captured of my ...
user220456
0
votes
1
answer
187
views
Frequency Sweep
I have heard the term "Frequency sweep" in testing context.
I want to understand, when we say frequency sweep, we give a start frequency and a stop frequency.
Assume a function generator with a ...
user220456
0
votes
2
answers
115
views
Effect of the horizontal magnifier control on the sweep speed, sweep time and number of cycles observed?
What is the effect of the horizontal magnifier control on the sweep speed, sweep time and number of cycles observed?
Sweep speed increases by ten times for a 10X magnifier, sweep time reduces by the ...
- 711
3
votes
2
answers
1k
views
Non-intrusive measurement of current and voltage
Sorry if this question is too basic for this forum... I'm an interested amateur but far from a professional. I'd really appreciate information from someone more informed than myself.
Hypothetical ...
- 141
0
votes
1
answer
628
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Enabling external reference to HP/Agilent Signal Generator (8648C)
What is the proper way to use an external 10 MHz clock signal for an HP/Agilent signal generator (in my case: 8648C)?
With my Tektronix, Rohde & Schwarz devices, internal/external reference has ...
- 1,326
3
votes
2
answers
12k
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LTSpice: How to use .meas command to find the fundamental frequency of non-sinusoidal signal?
I want to find fundamental frequency of a periodic signal (non-sinusoidal) in certain time window using the .meas command in LTSpice.
I was using the following ...
- 868
0
votes
1
answer
257
views
Measure duration of a non periodic message on FPGA with VHDL
I'm trying to measure the duration of a non periodic signal(message) on FPGA, as below :
I want to measure the duration of the measured signal by counting the number of reference clock's period. I ...
- 59
9
votes
4
answers
396
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How are high-speed circuits tested if test equipment doesnt exist?
How was testing done for Ghz to THz range circuits and devices before fast enough scopes and frequency counters existed?
- 720