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LU9DCE > RTLSDR 06.09.21 09:22z 103 Lines 4053 Bytes #999 (0) @ WW
BID : 4931_LU9DCE
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Subj: SDR NEWS 06-SEP.21
Path: HB9ON<IW2OHX<IQ2LB<IZ3LSV<DB0ERF<DK0WUE<PE1RRR<KA1VSC<LU9DCE
Sent: 210906/0831Z 4931@LU9DCE.TOR.BA.ARG.SOAM BPQ6.0.22
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ESTACION DE PACKET RADIO - BUENOS AIRES (GF05OM)
BOLETINES INFORMATIVOS PROGRAMADOS (BIP)
Copyright 2021 Eduardo A. Castillo
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Receiving the ‘Hidden’ Broadcast FM SCA Audio
Subcarrier with an RTL-SDR and SDR#
Broadcast FM channels can often contain additional subcarriers
hidden within the bandwidth. A common subcarrier is Radio Data System
(RDS), and this is what provides song and radio station text
information to your radio. Another less commonly seen subcarrier is
the Subsidiary communications authority (SCA), which is a separate
audio channel hidden within the broadcast
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DragonOS: RF Propagation Analysis with Signal Server GUI
DragonOS is a ready to use Ubuntu Linux image that comes
preinstalled with multiple SDR software packages. The creator Aaron
also runs a YouTube channel showing how to use the various packages
installed. In his latest video Aaron shows how to use the new
Signal-Server GUI that has recently been added to DragonOS. We posted
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SDRSharp Guide V3.0 Released
Paolo Romani (IZ1MLL) has recently released version 3.0 of his
SDRSharp PDF Guide which we posted about last in March of this year.
As before the document is a detailed guide about how to use SDRSharp,
which is the software provided by Airspy. While intended for Airspy
devices, SDRSharp also supports a number of third
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A SDR Digital Voice Hotspot with GNU Radio, MMDVM and QRadioLink
Thank you to Adrian (YO8RZZ) for writing in and sharing with us
his article explaining how to use an SDR to set up a digital voice
hotspot for digital voice modes supported by MMDVM such as D-Star,
DMR, System Fusion, P25 and NXDN. Adrian notes that this is possible
with any full duplex SDR such
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RTL-SDR Blog Active L-Band Patch Antenna for Inmarsat, Iridium,
GPS Back in Stock
Just a quick note to say that the second batch of our Active
L-Band Patch Antenna for receiving Inmarsat, Iridium and other L-Band
satellites is now in stock, available to be shipped from our
warehouse in China from early next week. Amazon will be stocked
within the next 1-2 months as the freighter will take
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Simple FM Radio and Airband RTL-SDR Android Applications
On the Google Play store developer Knowle Consultants have
recently released a new free application called "FM Radio (RTL-SDR)".
This is a simple app that allows you to use a connected or remotely
networked RTL-SDR to tune into preset broadcast FM stations. People
wishing to use an Android enabled head unit in their car may
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SDRA2021 Talks: Electrosense, Neural Network Signal
Classification, gr-rpitx, Radio Astronomy and More
The 2021 Software Defined Radio Academy conference was held
online this year on June 26/27 and the talks have been recently
uploaded to YouTube. There are some interesting talks this year
including a presentation on various SDR related topics including
Electrosense, gr-rpitx, 21cm radio astronomy with low cost SDR
hardware, and using deep learning neural
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TechMinds: Testing the SDRUno ADS-B Plugin Beta
This week on the Tech Minds YouTube channel Matthew tests out the
SDRuno ADS-B aircraft tracking plugin beta. SDRuno is the official
software for the SDRplay RSP line of receivers, and the beta can be
downloaded from their website (note the plugin will not work for the
RTL-SDR). In the video Tech Minds shows how
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