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All posts by nuclearrambo

Transmitting DATV over the air with LimeSDR-Mini

Transmitting voice is something every ham operator must be doing regularly. There is a breed of hams which only stick to digital modes, while some prefer morse. Some ham operators go above and beyond to transmit real-time video stream over the air. Back in the

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A simple voice detector circuit

Voice detector can find it’s use in voice-activated circuits. For example, triggering a transmitter or enabling a speech processor and so on. At the end of this blog post, we will look at one such application. A voice detector is a circuit which will either

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RF Pulse generation with RF switch

Remember the previous post where we generated PWM? We are going to use the PWM output from the TivaC microcontroller and drive an RF switch. I will be using the Minicircuits HSWA2-63DR+ SP2T switch to generate pulsed RF output. Correspondingly, A simple SP1T switch would

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tiva pwm tutorial

Generating PWM on Tiva C connected launchpad (TM4C1294)

Texas Instrument’s Tiva C connected launchpad is a really powerful Cortex M4 microcontroller board. The possibilities with this chip are endless. In this post, we will be generating PWM output on one of the GPIO pins of TM4C1294 microcontroller. A simple PWM output can be

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Photos from Udaipur, Rajasthan

It was my first time to Udaipur, Rajasthan and that had me all excited to explore a new town. An initial homework on the internet showed me lot of palaces and lakes to explore. On the other hand, it’s a good place for getting some

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sniper elite

Earn money with games

In this article you will learn from my experience how to earn money by hosting a game server off your computer. If you are among the people who don’t turn off their computer much, then this guide is for you. By keeping your computer on and

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orcad 17.2 full download

Cadence OrCAD 17.2 full download

The Chinese forums are filled with thousands of premium cracked software. Those who know Chinese are lucky to browse across endless forum threads that giveaway much needed cracked software. The reason being a flourishing electronics and engineering industry. Small-scale businesses simply can’t afford the multi-thousand

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LimeSDR Mini

Getting LimeSDR Mini to work for the first time

LimeSDR is a real temptation to buy if you are an RF or a signal processing guy. We all know FPGAs give you a huge set of building blocks of the digital world and you can create whatever you want out of it. LMS7002 chip

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Getting VHF station up and running

Days after clearing the ASOC examination, I finally got an official callsign – VU3XEN. The callsign would be useless if I have no means of communication. This post is going to be really short where I would be describing the process of getting a VHF

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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

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