sdr in action
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 PresentationTRANSCRIPT
SDR In Action
Making the most of your SDR receiverBy Simon Brown, HB9DRV
RSGB Convention, October 8th, 2011
SDR In Action
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
Examples
RF space: SDR-IQ, NetSDR, SDR-IP, SDR-ONE
$499 to $3,000 Kits:
SoftRocks$15 to $60
AMSAT UK FUNcube Dongle
£99
Usage
Panoramic display General receiver Radio astronomy Broadcast monitoring Intrusion monitoring Homeland security Remote via internet
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!
RFspace
SDR Receiver
FUNcube Dongle
Full support Doppler Tracking Radar plot
Rotator control DDE formats Nova Orbitron
Discone Antenna
IQ AnalysisThe Need for Doppler Correction
IQ AnalysisPerseid Shower
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
Record / Playback IQ Data
Recording data direct from SDR radio Playback all formats:
Perseus SDR-RADIO SpectraVue Winrad WinRadio G31DDC 'EXCALIBUR'
Remote Station
Locate SDR anywhere there’s internet
All features available!
SDRSpace.com
Wellbrook Active Loop ALA1530S+
Remote Station USA
Remote Station UK
2012 – SDR-ONE
SDR transceiver Low cost High
performance Full duplex http://sdr-one.co
m
Listen
Note to presenter Switch on the radio Connect antenna Listen!