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ESTACION DE PACKET RADIO - BUENOS AIRES (GF05OM)
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+----------------------------------------------------------------------------+ Title : rtl-sdr.com
Title : Tracking Multiple Amateur Radio APRS Balloons with RTL-SDRs
Content : Last month Jeff Deaton from " Edge of Space Sciences "
(EOSS) presented a talk called "SDR Multi Balloon Tracking", where
he discusses how EOSS are using RTL-SDR receivers to track their
APRS high altitude balloons. EOSS is a Denver, Colorado based
non-profit organization that promotes science and education by
exploring frontiers in amateur radio and high altitude balloons. The
talk overview reads:
Title : YouTube Review of the RS-918: A Chinese Clone of a Clone
of the mcHF SDR
Content : Over on YouTube  Kevin Loughin  has uploaded a video
reviewing the "Recent RS-918" which is a Chinese clone of the popular
mcHF open source SDR transceiver made by Chris (M0NKA). The mcHF
is a well known small and inexpensive home brewed open source HF
QRP SDR that was started back in 2013. It's sold either as a kit
for 236.82 GBP (US$287), or with metal enclosure at 292.78 GBP
(US$354). The kit comes with SMD components already soldered, but
you still need to solder the through hole components and assemble
it into the enclosure. The RS-918 clone can be found fully assembled
as a ready to use product on eBay for approximately US$400.
Title : GR-Oscilloscope: Using an Oscilloscope as a Software
Defined Radio
Content : A modern digital oscilloscope uses an analogue to digital
converter (ADC) and digital signal processing (DSP), just like a
software defined radio does, so it stands to reason that with some
software hacks an oscilloscope could be turned into an SDR.
Title : Developing Your Own SDR Applications With Python
Content : [ Max-Felix M├╝ller ] wanted to develop his own SDR
application with the goal of learning python and a bit about signals processing. To accomplish this goal he’s using [ pyrtlsdr ]
a library which wraps many of the functions from the [ rtlsdr-dev
] library into a Pythonic set of functions that you can use to
develop SDR applications for an RTL based SDR in python. Over on
Hackaday.io Max-Felix has been writing about his Python RTL-SDR
experiments and has been uploading sample code for anyone to take
a look at and learn from. 
Title : POLL: What do you want in a future low cost SDR?
Content : We've decided to ask the community what sort of radio
would be more popular for a ~$30 RX-only SDR. Note that thus far this
is only a hypothetical SDR that does not yet have any designs. We
are just feeling for what's most interesting to people and exploring
for future ideas which may not even be feasible at this time.
Title : Decoding the Lucky-7 Cubesat
Content : Lucky-7 is a Czech cubesat that carries some interesting
sensors including a low power GPS receiver, a gamma ray spectrometer
and dosimeter and a photo camera. The creators also claim that
it is "probably the lowest-cost scientific space mission in human
history". It was recently successfully launched and orbited together
with the Meteor M2-2 weather satellite and several other small
satellites.
Title : SignalsEverywhere: Satcom Antennas for L-Band Reception
via RTL-SDR + Podcast on the MiTee CubeSat Project
Content : On this episode of SignalsEverywhere on YouTube
Corrosive shows off several antennas that can be used for Inmarsat
and Iridium satcom reception. His video shows off a commercial
Inmarsat branded satlink antenna which is designed to be used on
moving ships, a grid dish antenna, a custom QFH iridium antenna made
from a repurposed Vaisala radiosonde, a commercial Iridium patch,
an older Outernet/Othernet Iridium patch and a custom Iridium patch
that Corrosive built himself.
Title : Dronesense: A LimeSDR Based Drone Detector and Jammer
Content : Over on the LimeSDR CrowdSupply blog,  Ogün Levent has
submitted a short article about his "Dronesense" project . Dronsense
is a spectrum-scanning and jamming system based on the LimeSDR. The
LimeSDR is a US$299 12-bit TX/RX capable SDR that can tune between
100 kHz ΓÇô 3.8 GHz, with a maximum bandwidth of up to 61.44 MHz.
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