NOAA Satellite Image – NOAA 15 at 20 Apr 2014 11:18:52 GMT

Sri Lanka captured by NOAA 15 satellite at 20 Apr 2014 11:18:52 GMT

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With the wind, some clouds (as we saw an hour ago in the previous satellite image) hovering over southern seas of Sri Lanka now covering southern and western parts of Sri Lanka. Which turn things more and more uncomfortable due to high percentage of humidity. We need some showers!!

NOAA Satellite Image – NOAA 19 at 20 Apr 2014 08:27:52 GMT

 

Sri Lanka captured by NOAA 19  satellite at 20 Apr 2014 08:27:52 GMTNOAA 19

Just wanted to check why it feels like 30+ degrees °C throughout the day and simply this weather is irritating. Got hold to NOAA satellite and this is what I captured. According to this, we can expect mostly a clear sunny weather till tomorrow morning. But here and there over the land you can see some scattered Cumulus clouds. Let’s check next satellite image for any change.

Software Defined Radio (SDR) – Part 1

Software Defined Radio (SDR) is a radio communication system where majority of signal processing units such as modulation, demodulation and signal filtering modules were implemented by means of a software in a computer whereas a traditional radio communication system uses dedicated hardware modules to perform such operations.

Typical SDR system may consists of a computer, audio processing device and an RF module to receive and/or transmit radio frequency.

Before we go into details let’s understand basic concepts of an SDR. 

Up coming articles, let’s discuss on listing to aviation communications using SRD followed by tracking an aircraft.