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This page is about synthesizing a LoRa signal such that it can be "played" back using a software-defined-radio with trans The desired end result is that the transmitted LoRa signal is compatible with and can be received with existing LoRa hardware.

10 megabits per second, or 10-Base-T is using manchester-coding, a simple signal with an embedded clock. ...is converted to a 2.5 MHz, 4-bit parallel signal, or 5 MHz, 2-bit parallel signal.

...t and right channels represent the I and Q components of the complex radar signal respectively, ready for further processing, e.g. complex FFT to separate th ...nuradio.org GnuRadio] framework to process and visualize the complex radar signal.

...he whole thing portable, without the need for an external oscilloscope and signal generator * Make sure that an arduino based scope can observe the signal.

* Receive a simple wireless microphone signal from the presenter * Understand a few basic concept of radio signals, signal processing, and software-based radio signalprocessing in particular.

* 10 Mar 2011 - [[http://signal.hackerspaces.org Signal]] * 17 Mar 2011 - [[http://signal.hackerspaces.org Signal]]

Combine a directional microphone with a megaphone and a Raspberry Pi for the signal processing. Have the megaphone broadcast the sound collected through the di *Doing the signal processing software, has anyone ported PureData to ARM yet?

...lusion that the center pin was used for a "Luminance" signal, and that the signal also included sync, so this seemed to be a PAL composite (monochrome) outpu

[[Category:Signal]]

This project is about signal processing of bat echolocation audio recorded through a pair of ultrasonic * one cycle of a 40 kHz bat signal consists of '''6''' samples

...ogether and connected to the coax under test via the SMA. I'm just using a signal generator to provide the first schmitt trigger with a square wave, but you

...vel-converter boosts the pulse waveform to about +10 and -10V for a strong signal into the transmitter transducer ...eceive side, a TL074/LM324 quad opamp is used to amplify the received echo signal

If the signal must be received in a certain space, one can make two loops at any two oppo To get an idea of signal distribution and decay, use this: https://www.falstad.com/vector3dm/ ("curr

...ft; padding-right: 0.5em; padding-bottom: 0.5em;" />Last thursday, [http://signal.hackerspaces.org/archive/2010-08-26-2200-dub-and-dubious-politics.ogg the f The show aired on the digital radio station [http://signal.hackerspaces.org Signal], the hackerspace radio. Every thursday between 22:00 CEST and 00:00 CEST,

-Accepts line-ish level or piëzo contact microphone signal on the input.

SIGNAL\r

In order to be able to make live radio for [http://signal.hackerspaces.org/ Signal], and because we can, we have a radio studio in the space. It is sharing a

! Signal | D2 || ZG-C || ZG01 clock signal

...on is that the smoothing capacitor has been removed, resulting in a 100 Hz signal going into the optocoupler (a pulse during each zero crossing). An interrupt is generated for each falling edge of the signal coming out of the optocoupler. This happens during the zero crossing, so tw

...ed on audio and [http://signal.hackerspaces.org/echtehackers/ available on Signal]. Most of the sessions are in Dutch, but the talk by MEP for the Swedish Pi