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LU1HVK > RTLSDR 23.01.21 16:12z 107 Lines 5048 Bytes #999 (0) @ WW
BID : 5927_LU1HVK
Read: GUEST
Subj: SDR NEWS PROJECTS 23 01
Path: HB9ON<IW2OHX<IR1UAW<IZ3LSV<DB0ERF<DB0RES<ON0AR<GB7CIP<N7HPX<LU1HVK
Sent: 210123/1603Z 5927@LU1HVK.2594.CBA.ARG.SA LinBPQ6.0.20
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BBS/NODO - CORDOBA (LEONES-FF87UH) - LU1HVK-4 NODO - LU1HVK-3 APRS
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Title : rtl-sdr.com
Title : DragonOS: Decoding FT8 on Linux with WSJT-X
Content : DragonOS is a ready to use Ubuntu Linux image that comes
preinstalled with multiple SDR program. The creator of DragonOS,
Aaron, uploads various YouTube tutorials showing how to use some of
the preinstalled software. This month one of his tutorials covers
how to use a SDRplay RSP1A or a HackRF to receive and decode FT8
with the preinstalled software WSJT-X or JS8Call. Aaron also notes
that an RTL-SDR could also be used as the SDR.
Title : SignalsEverywhere: Installing and Configuring OP25 Phase
1 & 2 Digital Voice Decoder on Linux
Content : In this weeks video Sarah from the SignalsEverywhere
YouTube channel show us how to install and configure the OP25
software on a Linux machine. OP25 is a Linux based P25 digital
voice decoder which works with RTL-SDR dongles. It is capable of
decoding both Phase 1 and Phase 2 systems. Installation is fairly
simple via an installation script, but it does take some time to
install. After installation Sarah shows how to configure the software
in order to properly follow a trunked P25 system. In order to help
with importing talkgroup information from a premium RadioReference
account Sarah has also created an automatic importer Python script
which is very useful.
Title : GNU Radio 3.9.0.0 Released
Content : GNU Radio is an open source digital signal processing
(DSP) toolkit which is often used in cutting edge radio applications
and research to implement decoders, demodulators and various SDR
algorithms. Version 3.9.0.0 has recently been released. Below is
part of the release text, but please see the official release post
for the full list of changes .
Title : Hacking a Ceiling Fan Radio Control Signal with an RTL-SDR
Content : Over on YouTube "River's Educational Channel" has
uploaded a video showing how he was able to reverse engineer the
wireless control signal from his ceiling fan remote, and use that
information to create a new transmitter controlled via his smart
home's Raspberry Pi.
Title : FengYun-2G Confirmed to be Receivable with a WiFi Grid Dish
Content : Back in November 2020 we posted about the release of
a decoder for the FengYun line of geostationary weather satellites
which provide full disk images of the Earth and are positioned to
cover parts of Europe, Africa, the Middle East, Asia, Russia, and
Australia. Back then only a few people had attempted decoding this,
and it was believed that a 120cm satellite dish or larger would
be required.
Title : SATRAN: An Affordable Motorized Satellite Antenna Rotator
Content : Recently we came across the SATRAN project by Daniel
Nikolajsen, which is an attempt to design, build and sell low cost
kits of an automatic motorized satellite antenna rotator for less
than US$200. A motorized satellite antenna rotator is useful for
pointing high gain directional antennas such as a Yagi or satellite
dish at low earth orbit satellites which can move across the sky
quickly. This is also an idea used by the well known SATNOGS project
which also provides a design for a 3D printed antenna rotator,
and runs servers that archive received satellite data.
Title : Using SDR to Investigate Telemetry Still Broadcasting from
1960’s Satellite Transit-5B5
Content : Thank you to Derek @ok9sgc for pointing us to some work
Reddit user u/Xerbot has been doing on receiving telemetry coming
down from a "dead" 1960's satellite called Transit-5B5 . The fleet of
Transit satellites was used for military navigation with the first
launch in 1959 and the last in 1988. All in the fleet have since
died apart from Transit-5B5 which continues to transmit telemetry
at 137 MHz when receiving power from in the sun. Derek writes:
Title : Etherify Talk from The rC3 Online Conference
Content : The "Chaos Computer Club (CCC)" have recently been
uploading videos to YouTube from their "Remote Chaos Experience
rC3" online conference. One talk is by Jacek Lipkowski (SQ5BPF)
who presents his Etherify project which we have posted about a
few times on this blog already. Etherify is a program that allows
users to exploit unintentional RF leakage from Ethernet hardware
in order to transmit data over the air, essentially creating a
primitive software defined radio. In particular the Raspberry Pi
4 was found to have extreme unintentional leakage, with the signal
being receivable from over 50m away.
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Es privilegio de los bufones decir verdades que todos callan.
-- Neil Gaiman.
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