Monthly Archives: January 2017
One of the SDRplay user community, Jukka, has started an interesting discussion on what he has called ‘propagation-triggered recording’ – he outlines the concept, and what he is doing, on our forum – see http://www.sdrplay.com/community/viewtopic.php?f=9&t=1839
The idea is that you monitor signals to determine if conditions are particularly good and can thereby trigger an I/Q recording of a whole band during that particular propagation high point – feel free to chip in with your ideas and to help shape what Jukka is doing.
Maybe CW decoding of amateur radio prefixes can yield a useful alert when signals from certain countries surface through the noise? There’s probably a lot of other practical opportunities for content-based triggering or even content-based tuning – especially if other factors are blended in – weather, time, stress detection in voices, popular twittersphere topics… where might all this end?!!!
Tom (the author) has just announced he has updated Win4K3Suite to support the RSP2. See http://va2fsq.com/
See his video on YouTube:
It is also highly recommended for use with the lower cost RSP1 which has been supported for a few months now. Thanks Tom!
There’s a particularly interesting discussion emerging on our forum on the subject of Ionosondes – this is where a transmitter sweeps all or part of the HF frequency range, transmitting short pulses. These pulses are reflected at various layers of the ionosphere, at heights of 100–400 km, and their echos are received by the receiver and analyzed by the control system. The result is displayed in the form of an ionogram, a graph of reflection height (actually time between transmission and reception of pulse) versus carrier frequency.
Join in the discussion on http://www.sdrplay.com/community/viewtopic.php?f=5&t=1826 – there must be lots of scope for analysing such emissions passively and having your own perspective on real time propagation!
There’s a very nice review of the RSP1 in the latest (Feb 2017) edition of QST magazine – click here to read the review article. There’s also an article on page 34 about Panadapters which of course is one of the many popular uses for an RSP:
It’s a real indication of just what good value the RSP1 is at $129 – for anyone trying to decide between the different RSP products, check out the comparison of features below:
ADS-B (dump 1090) is now available for Windows users on the RSP2 (other platforms to follow) – The RSP1 is already supported on multiple platforms. To use for plane tracking, download both the documentation and the software from http://www.sdrplay.com/downloads/ – please note the documentation dated October 2016 still refers to the old website screen on Page 2 for the download process and doesn’t mention the RSP2 – however everything is equally applicable to the RSP2 (You must use Port B for the antenna) Please note that you cannot use the same RSP for both ADS-B and any other SDR software at the same time since the dump1090 makes exclusive use of the RSP during operation.
One SDRplay Facebook Group member, Ben, reported: “dump1090 working just great on my rsp2…seeing planes 300-400 miles out” and posted this picture:
Many thanks to Simon Brown for updating SDR-Console V3 Preview to fully support both the RSP1 and the RSP2- you can download the software from http://sdr-radio.com/v3_preview_downloads (be sure to click on the software link under where it says ‘Downloads’ unless you want to download the software from the advertisers who support Simon’s work!)
As new YouTube demo videos of SDR-Console V3 in action become available, we will add them to the playlists on our YouTube Channel: www.youtube.com/c/SDRplayRSP
Cloud SDR have informed us that they have just released two programmes compatible with our SDRPlay devices (see update note below re RSP2) :
- The Cloud-SDR free client, a windows + Linux (to be released soon) client able to run locally SDRPlay RSP1 or RSP2 SDRs,
- The Cloud-SDR streaming server (codenamed SDRNode) , a windows + Linux (to be released soon) multi-user configurable streaming server.
SDRNode is a commercial software product but an evaluation version is already available. Both software programmes can be downloaded from their store after registration.
Source code for the drivers are already released as open source software through the Cloud-SDR GitHub repository: https://github.com/cloud-sdr
You can find more details here :
January 8th update: Please note, this currently only works with the RSP1 and basic tuning on port A for RSP2 – RSP2 compatibility will follow.
Cubic SDR has been updated with v0.2.1-alpha now including a SoapySDR module for the RSP1 and RSP2 – many thanks to author, Charles Cliffe for this. Click here for more information.
The folks at HDSDR have released Version 2.75 – see www.hdsdr.de
The new version has the following features:
– more recording options
– support for 8bit sampling format – ideal for RTLSDR, halving RF recording size
– display level / clipping for RF and AF
– additive noise generator for hiding aliases
– Highpass Filter for AM/FM deactivatable – useful for slow digimodes
– configurable gain for I/Q output – useful for digimode decoding weak signals of SDRs with >16 Bit dynamic range
– Uniform “Calibration” dialog for Frequency/S-Meter/DC Removal/Channel Skew
– “Custom color palette” to customize colors of Waterfall/Spectrum and some more
– output soundcard no longer necessary (e.g. for recording or monitoring)
– support for 8k display resolution (7680×4320)
– some new keyboard shortcuts (see )
– extended ExtIO capabilities
– experimental transmit capability through ExtIO API interface
– many fixes and improvements
Meanwhile, Simon Brown is just awaiting one additional input from us before releasing a new version of SDR Console V3 which will support the RSP2.