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you do not need to use a spectrum analyzer. a simple diode detector and an oscilloscope can be used to see if it is transmitting anything. you can build your own schottky power detector with a schottky diode and a capacitor. Then if you see power being transmitted at the ~ right time, you can also check the FSK modulation with a delay line frequ
Hi Folks, Would appreciate if I could get some feedback with the issue that I am having. I am currently trying to build a bench to measure the field strength. My signal generator is connected to the RF power amplifier and the oscilloscope. When I placed my signal generator amplitude to 100mVpp, the signal at oscilloscope looks perfect (...)
This could be a starting point:- Once you have the scope build your own funnction generator, you will learn a lot doing this. Frank
Hello, I have build the Fig 2. load and probe from this page in order to measure a 1w @50R transmitter with my scope. First I just connected a 50R load without the divider. I think (without the divider) the writer assumes a 1M scope input for the measurements, am I right? Because if the 50R scope
Hello, I am refining this amplifier this time I perform some measurements as I build it. I have built the input circuit up to T1. I connect the 50Ohm oscilloscope to the two points of the transformer (not the center tap). I expected to see inverter sinewave waveforms, but I see inverter distorted waveforms. Is that norma
if you do a web search for build oscilloscope you will get plentry of links using microcontrollers to acquire signals via ADCs and sending data to a PC via USB for display
I'm writing again to let you know that I found a new way to build up a power supply for Tektronix TDS400 series (TDS420, TDS430, TDS460, etc). It's a completely re-designed brand new compatible power supply expressed designed to fit into TDS400 and TDS400A families. I can offer a warranty on it. This model is cheaper than the previous o
Hello, I am trying to build a simple form of single bit ROM (core rope memory) for illustration purposes.Before proceeding with the design, I am making some tests on a transformer. The picture shows a pulse comming out of a 555 timer, into one turn on the primary. The secondary is connected to an oscilloscope. Every time a pulse occurs on th
I want to build a digital oscilloscope and Logic Analyzer. I want to use 19 in TFT displays mentioned in these links. Are there any better displays? Can I use 22 in LCD Monitor to display the oscilloscope and l
Did not deal with the idea of ​​building one current probe to the oscilloscope? I was looking at professional probe with Hall sensor and found schema of one of them (desing 60 years) Someone did not build something like this or know of a more contemporary design? Alternatively welcome discussion of transistor amplifier in (...)
You do not need an opamp to build an attenuator. Simply use two resistors ; but isolate your input via a suitable step down transformer
You can try to build an oscillator based on a comparator and measure the frequency (assuming you have one )
I'm planning to build a photodetector to sense the return photons of a laser beam reflection. It will be part of a rangefinder project, but for now it will be "standalone", catching reflected pulses with the APD through a transimpedance amplifier, into a programmable gain amplifier and into my oscilloscope. I've been looking at different APDs an
Basically, I wish to build a logic analyzer that can also function as an oscilloscope. Since I wish to aim for higher so I can utilize this for some time in the future as well I want to achieve a result with the capability of analyzing high-rate streams such as PCIe. Before I state my question I wish to tell you all that the likelyness of me ach
Hello! What do you mean by 200 MHZ/sec? ADC 8 bit is enough, but you have to build a good hardware circuit for the actual measurement. Now as for the results, you can do with a (relatively) low power MCU, for example ARM Cortex M3, but you have to have an independent circuit for sampling and dumping the samples in memory in realtime. For this, as
oscilloscope is one of those part of equipment which is really hard to build on your own. At least a one which has resonable parameters.
Sommaire This one is the simplest to build
Hello guys! I need to build a MATLAB GUI that can read and display real-time data from my USB port. It will work like a virtual oscilloscope. I cant do that! Who can help me? If you have any files that can help, please email me tks in advance!
We need a high quality low noise preamp with higher than 1M//20pF input. I don't want to build this I want to purchase but can't seem to find anything that's not 1M. We test devices that need variable load requirements, DC- 1MHz and signal levels from millivolts to 100V (I realize this will make my impedance requirement more difficult). We coul
I'm developing a fully featured, low cost, MSO. Schematics and HEX files available if you want to build your own Xprotolab is the first m
i think you must build one frequency counter low cost like published in efy march 2010
Hey i searched for oximeter but this problem hasn't occured on the results. I build my own sensor using 2 LED's and photodiode. Connected as in schematic attached (one change -> the differential op amp got right now gain only 1 because i dont have any resistors left ). Im reading the signal so far with oscilloscope (ox3.png). Want to ask if
Hello, I'm trying to build this oscilloscope: I'm using a raystar GLCD with a NT7108 controller. I know it's compatible with the more common KS0108. I have a few problems however. More explicit, ONE big one. The display doesn't show up anything, just blank. It's also my first PIC to program (i only worked with some AVR
Hii all, I am doing a summer rf project on cellphone booster, specifically a 850Mhz/1900Mhz bidirectional amplifier. I am new to rf, just started self learning it. I have an oscilloscope 15Mhz BK precision 1477, I wanted to ask if it would be any use in measuring when I build a prototype board. Thanks
Thanks your reply . Another problem is I wish to build a usb pc based oscilloscope with time based control , the knob controls the time base . oscilloscope usually have trigger function , what make my head big is no reference code is found on internet about this triggrt function in visual c# , so any comments are welcome !!
Hi everyone, hope someone can help out. I am trying to build the PIC based oscilloscope from but im having trouble compiling the GLCD-modified.c file. I have no C experience but have followed the steps given on the site on how to modify the original glcd.c file. When I try to compile it always gives an error on the same line:
I want to build a pc usb based oscillscope with pic18f2550 act as HID device. adc part using ads831 and CDCE913 - Programmable 1-PLL VCXO Clock Synthesizer with 3.3-V LVCMOS Outputs act as variable clock input to ads831, for different time base usage . But as sampling process goes on pic18f2550 is sending signal data continously to pc , if I chan
how can i build a pc based oscilloscope for 100Mhz plz help
Hello everyone. This is my first post in this forum. I am a student of 4th B Tech (ECE). I have planned to build a PC based USB oscilloscope using PIC 18f4550, to plot high frequency signals upto 10 MHz, in these vacations of mine. I am thinking of using external ADC made by TI for signal sampling,( TLC5540) which has sampling rate upto 40MSPS,s
Hi friends, I need to build an oscilloscope using visual basic 6 using the usb port. Can some one help me. Thank you
I don't think so that this oscilloscope wont have input supply of 220V or 110V. Because I have seen the oscillscope with only these input voltages. other than the pam one that are operated on batteries as well. If it is so, then why you need 2000V or 200 or 6.3V. My suggestion is that build an inverter (preferably Sine wave) for 220V or 110V, what
I have written this topic already but I cant find it anyway I will write again: I need to build a el. device that will show 4 different digital signals on 2 channel analog oscilloscope, I dont know how that schema is called if someone of you know or even better has a schema for that can please post it, last one that I have posted in my preview t
Hi, How can I build a 0-15V voltage logger using TLC549 and the serial or parallel port of my PC? Is there any software ready? Can I modify to my language (portuguese)? Regards, Fernando - Call sign PU2PLL
Hm!! it's not too hard.. i saw a chinese guy build it on their website
I want build a TDC circuit for my oscilloscope random repetitive sample,use TDC circuit to measure time between trig point to first sample clock .I select anlog TDC circuit,when trig occur,start current source fast charge capcitance, and first sample clk to stop slow discharge capcitance,then use counter to measure slow discharge time. as followin
What is the bandwidth of your XYZ signals? Converting from vector format to raster scan format is a rather complex operation. Some digital oscilloscopes have XYZ inputs and a VGA monitor output. Use one of them, and you won't need to build anything.
Hey all. A physics professor friend of mine asked me to build an amplifier that could deliver 300Vpp across a purely capacitive load (literally, alternately polarized plates in a vacuum) with a 100kHz to 1MHz sine wave. This didn't seem like a very challenging problem to solve at first but now I think I may have dismissed it a bit too readily!!!
Hello, I need your help if someone know how to build a very basic virtual oscilloscope using NI 6220 ( ) I just want to display the sine signal generated from a function generator. I don't use Labview or Measurement Studio because still can't afford to buy the license now. So, a bas
Hi, You can look at this link: All you need to build your own Oscillo. (It's French link)
Hello everybody: I have a hitachi 20 Mhz oscilloscope, I used it in my lab with the original probe, but now I'm using it a lot to measure signals from my car. I don't want to use the original probe and I want to build a good attenuate box, with selectable attenuator scale, but I don't know how to do it. In addition, if I build it, I (...)
Try its substitute for more detail go for I think where using this chip a pc oscilloscope is build , there you can find more information.
Is it possible to build a PC based osc up to 100MHZ , From where can i start , can anyone explain to me how can i do it? Thanks
hi i've a project to this name is there anyone to help me? thank u bye:D
If you are testing a transmitter, you can use a diode detector crystal set. Put your receiver antenna next to the transmitter antenna. Then use an oscilloscope to look at the diode output. To build this you go from left to right: antenna wire, inductor to ground, diode to the output node, shunt capacitor and resistor to ground on the output n
Since the frequency of measure is not high, you can build the probes using any coaxial cable. The effect on the measurement should be almost zero. A cable used in headphones should work fine. The whole constraction can be a homemade probe with a lot of tollerance in is assembly.
Hi,.. Is it possible to build an ADC exactly like this or as close as possible, using any kind of Microcontrollers.??? Thanks for all you help. :)
Yes, build a 200 MHz low-pass filter. Or slightly higher if you need flat amplitude all the way to 200 MHz.
Hi, I'm going to develope a video processing board. it accepts video analog signal digitizes it and processes the contents. It will then convert the digital signals into analog. What is the needed equipment in order to design , build and test the board completely? What is the suitable oscilloscope I should use for my project? Do I need a
You probably have capacitive loading on your collector resistor. It can be a meter of coax or oscilloscope probe set to 1:1. To enable capacitive loads you will have to build emitter follower after the amplifier. Coupling capacitors should be 10nF ceramic. To improve frequency characteristics at higher frequencies put a 56pF capacitor parallel to e
HI every one. I've decided to build a bitscope oscilloscope. However the bitscope website seems to contain all the info with the exception of the pcb design. I found a pcb layout for the old .10 version but i would like to build the newer 300 model. Any one have some advice on how to aquire this layout. I search the forums to no avail.