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Category Archives: Electronics

Fabricated dual directional coupler.

Home brewing a simple antenna analyzer – Part 1

A primary tasks of an antenna analyzer is determining how good of a match an antenna has with the transmitter. One of the ways of determining that is by looking at the reflected power from the antenna port. In simple words, an unmatched impedance of the

DRA818V pcb

DRA818V VHF band transceiver – Part 1

Necessity to stay connected with others is growing by the day. In cases when mobile network is out of reach and a message needs to be relayed or received, ham radio can prove to be quite helpful. Let us not get into the details as

LNA silicon images

Radar on a chip – Shrinking Radars!

Whenever we hear the word “Radar”, a picture comes to mind with a rotating line across a circular display with a few objects moving here and there. This is a general perception of radars that we have after watching a few Hollywood movies. Just like

Ka-band cloud radar

Mountain top radars

There are quite a lot of Radar systems installed in India for multiple purposes. Just in the last few years, the Government of India has been pushing forward the installation of weather radars for better predictability of monsoon and we all have to admit that

orcad 16.6 full download

Cadence OrCAD 16.6 full download – FREE

Cadence OrCAD 16.6 version is the new version of OrCAD schematic and PCB designing tool with lot of improvements. We all know that since the OrCAD 16.3 version, there has been no proper crack to use OrCAD. Do not worry anymore because I have finally

cyclone nanauk and delay of monsoon

The reason for delayed monsoon

Usual trend is that monsoon sets in Kerala by first June every year. After that the moisture containing clouds begin moving upwards covering the entire Indian subcontinent. The onset of monsoon is due to the fact that land heats up causing low pressure region over

ECG front end circuit (BUY NOW)

Android based wireless ECG monitoring (UPDATED)

From quite some time I had been busy trying to perfect my real time ECG monitoring system. I was able to look at my ECG after a tedious task of recording it via sound card and then processing it in MATLAB. If you have closely

Rainfall prediction 2013

2013 Rainfall predictions for India

Last year we saw the effect of El Nino creating cold weather conditions for India, on the other hand it also caused very less rainfall in India. Due to the severely low rainfall, drought like conditions can be seen across the country side. Due to