104 results for tags
radio x
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Daniel Estévez – Electronics, ham radio and more
Has a number of interesting articles, for exampleTue Nov 8 22:38:39 2016 - permalink -
Trying to find the DSLWP-B crash site, calculation of the impact location of the DSLWP-B spacecraft.
https://destevez.net/2019/08/trying-to-find-the-dslwp-b-crash-site/#more-7025
Detailed description of decoding telemetry from Voyager 1 received 2015-12-30 with the Green Bank radio telescope.
https://destevez.net/2021/09/decoding-voyager-1/
And some more recent data
https://destevez.net/2021/12/more-data-from-voyager-1/
Analysis of the Ephemeris quality during the Galileo outage in July 2019.
https://destevez.net/2019/09/ephemeris-quality-during-the-galileo-outage/
https://destevez.net/2019/08/galileo-outage-revisited/
Other articles related to satellite navigation
https://destevez.net/2022/03/a-rust-implementation-of-galileo-osnma/
https://destevez.net/2022/03/timing-sdr-recordings-with-gps/
https://destevez.net/2019/11/measuring-the-allan-deviation-of-a-gpsdo-with-an-sdr/
https://destevez.net/2023/10/update-on-the-galileo-gst-utc-anomaly/
The following articles contain information about the Pluto SDR
https://destevez.net/2023/02/maia-sdr/ Maia SDR, an open-source FPGA-based SDR project focusing on the ADALM Pluto. https://maia-sdr.org/
https://fosdem.org/2024/schedule/event/fosdem-2024-1841-maia-sdr-an-open-source-fpga-based-project-for-ad936x-zynq-radios/
https://destevez.net/2022/09/connecting-the-pluto-sdr-to-an-android-phone/
https://destevez.net/2022/08/calculating-the-qo-100-beacons-frequency-separation/
Details of the Reed-Solomon code used by Voyager
https://destevez.net/2021/12/voyager-1-and-reed-solomon/
https://destevez.net/2022/02/an-error-in-the-dsn-telecommunications-link-design-handbook-description-of-reed-solomon/
LDPC toolkit
https://destevez.net/2023/07/ldpc-toolbox-gets-ldpc-decoding/
https://github.com/daniestevez/ldpc-toolbox
List of RF recordings
https://destevez.net/rf-recordings/- http://destevez.net/
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FreeSRP | electronics.kitchen
Tue Nov 8 22:30:27 2016 - permalink -- http://electronics.kitchen/freesrp
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Maximum input level for Airspy: -10 dBm.
Tue Nov 1 23:02:53 2016 - permalink -- https://uk.groups.yahoo.com/neo/groups/airspy/conversations/topics/3265
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Rtl Power: Basic scripting.
Rtl_power is a unix-hacker's approach to the waterfall. Its unique features include:Wed Jul 13 04:10:50 2016 - permalink -
- Unlimited frequency range. You can do the whole 1.7GHz of a dongle.
- Unlimited time. At least until you run out of disk for logging.
- Unlimited FFT bins. But in practice I don't think I've taken it above 100k bins.
- Quantitative rendering. Exact power levels are logged.
- Runs on anything. A slower computer will use less samples to keep up.
The blog has a lot of other interesting articles, e.g. http://kmkeen.com/tiny-code/, http://kmkeen.com/flash-recovery/ , http://kmkeen.com/fp/ just to name a few.- http://kmkeen.com/rtl-power/
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Synchronising your network to a Conrad DCF77 receiver
Thu Mar 24 12:57:19 2016 - permalink -- http://www.sput.nl/time/dcf77.html
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SDR transceiver
SDR receivers and transmitters for Red Pitaya.Thu Mar 10 01:39:18 2016 - permalink -- https://pavel-demin.github.io/red-pitaya-notes/sdr-transceiver/
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AIRSPY - Yahoo Groups
Public disussion group about the Airspy (http://airspy.com) SDR receiver hardware.Tue Nov 17 14:09:57 2015 - permalink -- https://uk.groups.yahoo.com/neo/groups/airspy/conversations/topics
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CubicSDR | Cross-Platform and Open-Source Software Defined Radio Application
CubicSDR is a cross-platform Software-Defined Radio application which allows you to navigate the radio spectrum and demodulate any signals you might discover. It currently includes several common analog demodulation schemes such as AM and FM and will support digital modes in the future. Many digital decoding applications are available now that can use the analog outputs to process digital signals by “piping” the data from CubicSDR to another program using software like Soundflower, Jack Audio or VBCable.Fri Nov 13 01:19:11 2015 - permalink -
Currently CubicSDR supports the RTL-SDR which is an inexpensive SDR device that can be purchased online for about $10 and up. Search for “RTL2832U” and “820T” or “820T2” on sites such as eBay or Amazon to see what’s available. Support for more advanced and higher bandwidth devices will be added in the future.- http://cubicsdr.com/
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The Deep Sweep
The Deep Sweep is an aerospace probe scanning the otherwise out-of-reach signal space between land and stratosphere, with special interest placed in UAV/drone to satellite communication.Fri Sep 25 18:43:43 2015 - permalink -- https://criticalengineering.org/projects/deep-sweep/
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Building your own SDR-based Passive Radar on a Shoestring | Hackaday
Passive radar using FM broadcast transmitters and a dual channel SDR receiver.Tue Jun 9 14:50:50 2015 - permalink -- http://hackaday.com/2015/06/05/building-your-own-sdr-based-passive-radar-on-a-shoestring/
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Software Defined Radio - The RadioReference.com Forums
Forum discussion SDR hard- and software.Sat Feb 21 23:30:19 2015 - permalink -- http://forums.radioreference.com/software-defined-radio/
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Lime SNOWLeo SDR / AZIO Electronics Co., Ltd.
V3 SNOWLeo SDR is a low-cost open source software defined radio platform based on Xilinx ZYNQ SoC and MYRIAD RF module. It include Giga Ethernet, USB OTG, HDMI, SDIO and USB-UART. SNOWLeo SDR is equipped an MYRIAD module that support 300MHz~3.8GHz, 28MHz BW application, such as WiFi, LTE or WiMax.Thu Feb 12 11:53:33 2015 - permalink -- http://www.azio-tw.com/azio_web/?page_id=3412
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Projects Archive - Myriad
Hardware for software defined radio.Thu Feb 12 11:52:28 2015 - permalink -- https://myriadrf.org/projects/
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Round-Up of RTLSDR Upconverter Choices | KF7LZE's Blog
List of up-converters to allow HF reception with RTLSDR receivers.Wed Feb 11 13:49:36 2015 - permalink -- http://blog.kf7lze.net/2012/09/14/round-up-of-rtlsdr-upconverter-choices/
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David & Cecilia Taylor's Web Pages
Collection of software for reception of various satellite signals, ADS-B receiver (http://www.satsignal.eu/raspberry-pi/dump1090.html) for the Raspberry Pi, NTP (http://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html) and more.Mon Feb 2 11:42:50 2015 - permalink -- http://www.satsignal.eu/
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Topic: Airspy Firmware | airspy.com
The firmware for airspy will be released once it is cleaned up.Fri Dec 12 15:24:21 2014 - permalink -- http://airspy.com/?topic=airspy-firmware
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PortableSDR • Hackaday Projects
Fully stand-alone HF (Shortwave) Software Defined Transceiver & Vector Network Analyzer. Designed for rugged portable use. Highly hackable.Fri Dec 12 13:48:42 2014 - permalink -- http://hackaday.io/project/1538-portablesdr
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SDR | Dangerous Prototypes
Collection of articles about software defined radio.Tue Aug 19 11:18:06 2014 - permalink -- http://dangerousprototypes.com/category/sdr/
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Ham it Up HF Converter | Ham Radio Science
Review of the Ham it Up Converter, an up-converter translating HF (approx. 0--50 MHz) to 100--150 MHz for use with SDR receivers.Wed Aug 6 20:14:05 2014 - permalink -- http://www.hamradioscience.com/ham-it-up-hf-converter/
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airspy.com | A tiny and efficient software defined radio
Airspy is a very tiny (5×3 cm) software defined radio receiver capable of sampling 10MHz of spectrum anywhere between 24MHz and 1.7GHz.Sat Jul 5 23:57:10 2014 - permalink -
USB interface, works with Linux.- http://airspy.com/