SDR In Action

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SDR In Action Making the most of your SDR receiver By Simon Brown, HB9DRV RSGB Convention, October 8 th , 2011

description

Making the most of your SDR receiver By Simon Brown, HB9DRV. SDR In Action. RSGB Convention, October 8 th , 2011. SDR In Action. What is SDR?. SDR = S oftware D efined R adio No knobs needed  just a mouse, keyboard, computer, monitor, … - PowerPoint PPT Presentation

Transcript of SDR In Action

Page 1: SDR In Action

SDR In Action

Making the most of your SDR receiverBy Simon Brown, HB9DRV

RSGB Convention, October 8th, 2011

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SDR In Action

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What is SDR?

SDR = Software Defined Radio No knobs needed just a mouse,

keyboard, computer, monitor, … All demodulation performed by

software, including mixing, filters, NB, NR, ANF etc.

Software can run inside the hardware (example ADAT 200) but today we’re concentrating on SDR with software running on Windows systems

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Examples

RF space: SDR-IQ, NetSDR, SDR-IP, SDR-ONE

$499 to $3,000 Kits:

SoftRocks$15 to $60

AMSAT UK FUNcube Dongle

£99

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Usage

Panoramic display General receiver Radio astronomy Broadcast monitoring Intrusion monitoring Homeland security Remote via internet

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Computer Requirement

Any i3 / i5 / i7 is suitable Floating point support very

important Works with the Intel ATOM but

bandwidth is restricted due to the poorer floating point performance

Onboard graphics OK, dedicated graphics card can help

The more monitors the merrier!

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RFspace

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SDR Receiver

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FUNcube Dongle

Full support Doppler Tracking Radar plot

Rotator control DDE formats Nova Orbitron

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Discone Antenna

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IQ AnalysisThe Need for Doppler Correction

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IQ AnalysisPerseid Shower

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IQ AnalysisMW DXing

882kHz, medium wave, October 4th / 5th 2011

Here we have a displayed bandwidth of 30Hz over 18 hours starting in the afternoon and ending in the morning of the next day, so we see signals as they fade in and then fade out in the morning.

The carrier serves as a signature: those who really know what they are doing can identify the type of transmitter and by applying logic which station is which!

PDF Explanation here

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Record / Playback IQ Data

Recording data direct from SDR radio Playback all formats:

Perseus SDR-RADIO SpectraVue Winrad WinRadio G31DDC 'EXCALIBUR'

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Remote Station

Locate SDR anywhere there’s internet

All features available!

SDRSpace.com

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Wellbrook Active Loop ALA1530S+

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Remote Station USA

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Remote Station UK

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2012 – SDR-ONE

SDR transceiver Low cost High

performance Full duplex http://sdr-one.co

m

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Listen

Note to presenter Switch on the radio Connect antenna Listen!