Category: SDRplay

Using the SDRuno EXTIO Edition with an RTL-SDR and other SDRs

Over on YouTube Mike from the SDRplay team has created a tutorial video that shows how to use the SDRuno EXTIO edition. SDRuno is the official software of the SDRplay line of products and can be freely downloaded from the SDRplay website. The EXTIO edition allows other non-SDRplay SDR units to freely be used with SDRuno. The only restrictions are that the maximum bandwidth is artificially restricted to 2.5 MHz and some DSP filters are missing.

In the video Mike shows how to set up the SDRuno workspace to work with an RTL-SDR dongle and demos reception of some signals. Note that the EXTIO dll file for the RTL-SDR mentioned in the video is the same one required for HDSDR, and can be downloaded from the dll table on the HDSDR website.

If you’re interested in more, Mike has a full SDRuno tutorial series available on the SDRplay YouTube channel which mostly focuses on usage with the SDRplay units, but could be applicable to the EXTIO version as well.

ARRL QST Review of the SDRplay RSP2Pro with Independent Lab Measurements

In the latest version of the ARRL QST magazine editor Steve Ford (WB8IMY) has released a comprehensive review and set of measurements for the SDRplay RSP2 / RSP2Pro. The review is also freely available online in pdf format from the SDRplay website (pdf warning).

The review initially focuses on the differences between the RSP1 and the RSP2 units, explaining how most differences occur in the front end circuitry. WB8IMY then goes on to review SDRuno, the official software package of SDRplay units. The review is fairly brief, but the most interesting part is the lab test results which are displayed throughout the review.

WB8IMY performed several benchmark lab measurements such as frequency coverage, MDS (minimum discernible signal) levels (note MDS measured at 400 Hz instead of the standard 500 Hz for some reason), noise figure, AM and FM sensitivity, blocking gain compression dynamic range, two tone IMD tests, second order intercept points, FM adjacent channel selectivity and more. The results can be useful for comparing against other SDRs.

ARRL RSP2 Lab Measurement Results
ARRL RSP2 Lab Measurement Results (see the PDF for the full set of results)

A showcase of our Metal RSP-1 Enclosure

Back in March of this year together with Mike (KD2KOG) we brought out a metal enclosure for the SDRplay RSP1. The enclosure includes a BCFM filter as well as a nice carry case. We’ve been collecting a few images of users using this enclosure, and this is simply a picture showcase of those images.

If you’re interested in the enclosure we still have some limited stock remaining over on our store at www.rtl-sdr.com/store.

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Using the SDRuno EXTIO Edition with an RTL-SDR and other SDRs

Over on YouTube Mike from the SDRplay team has created a tutorial video that shows how to use the SDRuno EXTIO edition. SDRuno is the official software of the SDRplay line of products and can be freely downloaded from the SDRplay website. The EXTIO edition allows other non-SDRplay SDR units to freely be used with SDRuno. The only restrictions are that the maximum bandwidth is artificially restricted to 2.5 MHz and some DSP filters are missing.

In the video Mike shows how to set up the SDRuno workspace to work with an RTL-SDR dongle and demos reception of some signals. Note that the EXTIO dll file for the RTL-SDR mentioned in the video is the same one required for HDSDR, and can be downloaded from the dll table on the HDSDR website.

If you’re interested in more, Mike has a full SDRuno tutorial series available on the SDRplay YouTube channel which mostly focuses on usage with the SDRplay units, but could be applicable to the EXTIO version as well.

ARRL QST Review of the SDRplay RSP2Pro with Independent Lab Measurements

In the latest version of the ARRL QST magazine editor Steve Ford (WB8IMY) has released a comprehensive review and set of measurements for the SDRplay RSP2 / RSP2Pro. The review is also freely available online in pdf format from the SDRplay website (pdf warning).

The review initially focuses on the differences between the RSP1 and the RSP2 units, explaining how most differences occur in the front end circuitry. WB8IMY then goes on to review SDRuno, the official software package of SDRplay units. The review is fairly brief, but the most interesting part is the lab test results which are displayed throughout the review.

WB8IMY performed several benchmark lab measurements such as frequency coverage, MDS (minimum discernible signal) levels (note MDS measured at 400 Hz instead of the standard 500 Hz for some reason), noise figure, AM and FM sensitivity, blocking gain compression dynamic range, two tone IMD tests, second order intercept points, FM adjacent channel selectivity and more. The results can be useful for comparing against other SDRs.

ARRL RSP2 Lab Measurement Results
ARRL RSP2 Lab Measurement Results (see the PDF for the full set of results)

A showcase of our Metal RSP-1 Enclosure

Back in March of this year together with Mike (KD2KOG) we brought out a metal enclosure for the SDRplay RSP1. The enclosure includes a BCFM filter as well as a nice carry case. We’ve been collecting a few images of users using this enclosure, and this is simply a picture showcase of those images.

If you’re interested in the enclosure we still have some limited stock remaining over on our store at www.rtl-sdr.com/store.

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Listening to July’s Arecibo Observatory Ionospheric Heating Campaign

During July 24-31 the large Arecibo Radio Observatory in Puerto Rico (the big dish antenna that you may be familiar with from the movie ‘Contact’) ran an Ionospheric heating experiment which involves transmitting 600kW of net power up into the Ionosphere. This type of experiment is used for researching plasma turbulence in the ionosphere and upper atmosphere.

“The new Arecibo ionosphere HF heater nominally transmits 600 kW net power and has a unique Cassegrain dual-array antenna design that increases gain of three crossed dipoles for each band, using the signature 1000-foot spherical dish reflector,” explained Chris Fallen, KL3WX, a researcher at the University of Alaska-Fairbanks HAARP facility. He has reported that Arecibo would use 5.125 or 8.175 MHz, depending upon ionospheric conditions, but emphasized that these are estimates and frequencies may be adjusted slightly. On July 25, Arecibo was transmitting on 5.095 MHz.

Over on YouTube Mike L. used his SDRplay RSP1 together with our BCAM HPF to record some transmissions from the observatory.

SDRplay RSP1 Price Reduced to $99.95 USD

SDRPlay have just announced that their RSP1 unit has just been reduced in price to $99.95 USD. Their press release reads:

SDRplay are pleased to announce a price reduction for their entry-level SDR receiver, the RSP1 to $99.95 USD making it the most competitive mid-range SDR to include reception down to low frequencies without the need for an upconverter. The RSP1 provides general coverage receiver and panadapter capability from 10 kHz to 2 GHz. As well as providing SDRuno SDR software, support for popular 3rd party packages like HDSDR, SDR-Console and Cubic SDR is provided. Recent availability of an SD Card image makes for easy set up on a Raspberry Pi.

Over time we’ve seen the RSP1 reduce in price originally from $299 USD, to half price at $149 USD in March 2015 and then to $129 USD in September 2016, and now finally down to $99 USD. The newer RSP2 remains at a price of $169.95 USD.

The SDRplay RSP1
The SDRplay RSP1

Receiving Jupiter Noise Bursts with an SDRplay RSP1

Over on YouTube user MaskitolSAE has uploaded a video showing him receiving some noise bursts from Jupiter with his SDRplay RSP1. The planet Jupiter is known to emit bursts of noise via natural ‘radio lasers’ powered partly by the planets interaction with the electrically conductive gases emitted by Io, one of the the planets moons. When Jupiter is high in the sky and the Earth passes through one of these radio lasers the noise bursts can be received on Earth quite easily with an appropriate antenna 

In his video MaskitolSAE shows the 10 MHz of waterfall and audio from some Jupiter noise bursts received with his SDRplay RSP1 at 22119 kHz. According to the YouTube description, it appears that he is using the UTR-2 radio telescope which is a large Ukrainian radio telescope installation that consists of an array of 2040 dipoles. A professional radio telescope installation is not required to receive the Jupiter bursts (a backyard dipole tuned to ~20 MHz will work), but the professional radio telescope does get some really nice strong bursts as seen in the video.

The UTR-2 Radio Telescope. Photo Attr. Oleksii Tovpyha (Link)

New Raspberry Pi image preloaded with software available for the SDRplay

Over on their forums the SDRplay team have just released a new Raspberry Pi image which comes preloaded with the drivers and a bunch of ready to use software. They write

We have released a Raspberry Pi 3 image that has a number of SDR applications pre-built and tested that support the RSP. Periodically, we will update the image with software updates and new software.

The current list of software included on the image is:

SoapySDR/SoapySDRPlay, SoapyRemote, ADS-B (dump1090), CubicSDR and SDR-J DAB receiver

Please note: This is a complete OS with software image. Writing the image to a micro SD card will wipe the micro SD card of any other data that is on there, so we recommend you make sure you have backed up any data on your existing micro SD card or you use a new micro SD card.

Instructions:

1. Download image. There are two downloads provided, the 7zip version is just a smaller download but not everyone has 7zip which is why we also provide a zip download. The links are here:

http://www.sdrplay.com/software/SDRplay_RPi3_V0.1.zip (2.7 GB)

http://www.sdrplay.com/software/SDRplay … 0.1.img.7z (2.0 GB)

2. Extract the contents of the compressed file. This will extract to a .img file which will be about 7.2 GB

3. Use an image writer such as Win32DiskImager (https://sourceforge.net/projects/win32diskimager) to put the image onto the micro SD card.
WARNING: Please make sure that you use the correct drive letter for the micro SD card. The image writing software will completely remove any data that is on the destination media.

That’s it – put the micro SD card into the Raspberry Pi 3 micro SD card slot and boot the system. Allow the system to fully boot and you will see a GUI that will allow you to run each of the applications or read further information.

We also recommend that you use an active cooling system on your Raspberry Pi 3 to avoid any issues with over heating. In our tests, we have used heatsinks and a fan in a case. The CPU speed will be throttled if the temperature gets too hot, so for optimum use this is really recommended. These cases are available at reasonable prices from many Raspberry Pi stores.

If you are a developer of software that supports the RSP and you would like to be included on the image that we will release periodically, please contact us at [email protected] – currently we’re aiming to update the image every quarter, this will largely depend on software availability and what the demand is.

We are aware of other software that we are looking to get onto the next release such as Pothos and more SDR-J software. We will work with developers on any issues we’ve seen during this process so that we can get them onto future images.

Best regards,

SDRplay Support

Last week we posted about Kevin Loughin’s video where he showed how to get CubicSDR and an SDRplay running on a Raspberry Pi 3. This new ready to go image saves you from needing to perform the install process.

Running an SDRplay RSP2 on a Raspberry Pi 3 with CubicSDR

Over on YouTube user Kevin Loughin has uploaded a video demonstrating his SDRplay RSP2 running on a Raspberry Pi 3. The software he uses is CubicSDR which is a multiplatform program that is similar to software like SDRUno, SDR#, SDR-Console, HDSDR etc. The video shows CubicSDR running, but the interface is quite slow and laggy, although the audio is at least not choppy.

In a previous post we showed one of Kevin’s earlier videos where he does a tutorial and some scripts that help to actually set up the SDRplay drivers and CubicSDR in Linux. In the new video he first goes over a specific hack that needs to be done in Raspbian to fix the PulseAudio server. Then he explains that you can run the Linux build script mentioned in his previous tutorial video and it should work on the Raspberry Pi 3 just fine. Finally he mentions that CubicSDR and the SDRplay use a high amount of CPU processing on the pi3 so some sort of cooling mechanism is required or the pi3 may throttle down its CPU.