Browse By

Category Archives: Electronics

psa4-5043+ gain

Measuring noise figure using Gain Method

For those into radio astronomy would know the significance of having ultra-low noise figures. Lower the noise figure, the more sensitive your receiver becomes. Noise figure is a unit of measure that tells us how much noise, for example, your amplifier is adding to the

If you liked this article, feel free to share it. It will help us a lot!
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
neje dk bl laser

NEJE DK-BL 1500 laser engraving tool review

Laser engraving can be a fun pass time. If you often create art, a laser engraving machine can help you put that design onto a piece of wood or cardboard. Burning your artwork on a piece of wood gives a very special kind of appeal

If you liked this article, feel free to share it. It will help us a lot!
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  

Radar Beamforming to track target

The Matlab phased array toolbox is a collection of many interesting algorithms and functions. With so many tools at your disposal, the phased array toolbox lets us build a complete end to end radar system. I tried the phased array toolbox for the first time

If you liked this article, feel free to share it. It will help us a lot!
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  

Transferring a text file over the air with LimeSDR mini

We have seen the LimeSDR mini several times on this blog. So far, we have only seen how it can generate analog modulation to transmit voice and what not. Being an SDR capable to transmit practically anything, we can even transmit binary data. Speaking of

If you liked this article, feel free to share it. It will help us a lot!
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  

Building an automatic gain control (AGC) circuit

Most amplifiers we use have a fixed gain. In case of excess input power, the amplifier saturates. As a result, the blocks down the receive chain also get affected by this. To avoid this, the preferred technique is to reduce the gain of the amplifier

If you liked this article, feel free to share it. It will help us a lot!
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  

Cable impedance profile with NanoVNA and TDR script

We have gone over NanoVNA so many times in the past. I did a complete review of the inexpensive NanoVNA last month. Furthermore, I compared it with the super-expensive Keysight N9952A Vector Network Analyzer. Finally, I wrote a small script to compute the TDR response

If you liked this article, feel free to share it. It will help us a lot!
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
nanovna vs keysight fieldfox vna

Comparing NanoVNA with the Keysight Fieldfox N9952A

Vector network analysers (VNA) come in all sort of price ranges. Most of them are out of reach for a typical hobbyist. Very few VNAs are available to be bought by someone like you and me. For example, the $500 miniVNA and the sub-hundred dollar

If you liked this article, feel free to share it. It will help us a lot!
  •  
  •  
  •  
  •  
  • 30
  •  
  •  
  •  
  •  
    30
    Shares
nanovna review

NanoVNA – A short review

Do you build RF circuits? Have you built any antennas? If the answer to any of the two questions is YES, then you know how valuable having a VNA (Vector Network Analyzer) is. Just an year ago the cheapest VNA on the market was the

If you liked this article, feel free to share it. It will help us a lot!
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •