Tag Archives: SDR

Radio Serbia International recording and final farewell

Many thanks to SWLing Post reader, “Mutezone,” who writes:

“I want to share a link to a video of Radio Serbia International’s English service recorded on the 4th of July 2015…

[…]I have been monitoring for RSI during the last week of July but got nothing. I have also been monitoring 6100 kHz after the July final date of transmission as according to RSI’s website, there are “Pirates stalking Serbian short wave” due to the termination of the station. However I have not received any odd transmissions on this frequency at the moment.”

Thanks for sharing this recording/video and, especially, for capturing RSI’s interval signal.

I was unable to hear RSI’s final broadcast on July 31, 2015.

If any SWLing Post readers managed to record RSI’s final broadcast–in any language–please contact me so we can add it to the Shortwave Radio Audio Archive.

Regarding the end of Radio Serbia International (or International Radio Serbia), the following final post was published on their website. I’ve included the full note, for archival purposes, in case the RSI website goes offline in the future:

The End of Radio Yugoslavia – International Radio Serbia

Thanks for sharing the recording and for including a few minutes of the RSI interval signal. RSI was always a difficult broadcaster for me to catch here in North America, though I heard them a number of times via the University Twente Web SDR.

Dear friends, Radio Yugoslavia – International Radio Serbia, ceases to exist on 31 July 2015. For you, our faithful listeners from all over the world, and also for us who have worked on this radio, the only consolation would be the fact that this only state short-wave station in Serbia, which has existed for 79 years, will be remembered as an efficient and reliable promoter of Serbia worldwide. No one has ever presented valid reasons why this media, of rich tradition, range and staff potentials, and with big plans until yesterday, should cease to exist. Unfortunately, the assessments not based on arguments were louder than serious analyses and recommendations of experts, professionals and numerous listeners that the world radio service is necessary for Serbia, that it presents the country worldwide in the best manner possible and that no serious state will renounce such an effective diplomacy.

Our significance has been confirmed by the letters of thousands of listeners from all over the world. Some listened to us because of our information programmes, some because of economic topics, while many got to love our country, Serbia, because of its tradition, beautiful and interesting landmarks and the rich heritage they were acquainted with by listening to International Radio Serbia. Regardless of your affinities, you have all told us that you were listening to us because of our objectivity and the possibility of hearing us at any time and everywhere, for such is the power of short waves.

The Serbian government, however, believes that the closing down of Radio Yugoslavia – International Radio Serbia – is a justified move. Regardless of the fact that the state of Serbia is in an economic crisis, that each saved penny is precious, that many citizens have been rendered jobless, that new work positions should be opened, it has become unclear to the very end why the only state short-wave station has suddenly become too expensive after 80 years. We are, however, certain, that Serbian citizens, taxpayers, who have financed us for all these years, would have decided differently had they been asked to.

What remains, after all, is the pride we feel because of the history of our radio as well as the hope that the voice of Serbia will reach our listeners wherever they are.

Thank you, dear listeners from all over the world, for having trusted us all these years! Radio Yugoslavia – International Radio Serbia now greets you and signs off.

Source: http://voiceofserbia.org/content/end-radio-yugoslavia-%E2%80%93-international-radio-serbia#sthash.rvvWUjgx.dpuf

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The Siru Innovatios SDR20 adds new features

LondonShortwave: “Scanning the skies”

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Many thanks to SWLing Post contributor, LondonShortwave, who shared (via Twitter) this video with recordings made with his portable SDR in a London park:

Brilliant recordings, LS, and amazingly QRM-free!

You can follow LondonShortwave on his blog and via Twitter.

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A review of the SDRplay RSP software defined receiver

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The following review originally appeared in the May 2015 issue of The Spectrum Monitor magazine.

Good things often come in small packages. But not all of these things are…well, affordable.

Ironically, earlier this year, just after I began to evaluate and review the superb TitanSDR Pro, a robust military-grade SDR, I was approached by the UK-based manufacturer of the SDRplay RSP software-defined radio and asked to review their receiver. I was instantly intrigued––and, truth be told, just a bit amused, considering the difference between these two receivers. And what, exactly, separates the SDRplay RSP from the TitanSDR? At least $1350.

The SDRplay RSP is one of the recent generation of economical wideband SDRs based upon innovative, inexpensive chipsets; in the RSP’s case, based upon the Mirics MSI3101 SDR chip, and a MSI001 tuner. Priced at a mere $149 US (plus shipping), the SDRplay RSP is one of the least expensive, yet full-featured SDRs which actually include the HF bands and below, and which require no extra upconverter. Preliminary reviews of the SDRplay RSP were quite positive, so when the folks at SDRplay requested that I review an RSP on loan, I immediately seized the opportunity.

Unboxing and connecting

My review unit of the SDRplay RSP has blue ends caps and an F style connector. All current production units have the new back case and SMA connector.

My SDRplay RSP arrived in a modest well-padded box. And what was inside? Only the SDRplay RSP and a small F-to-BNC adapter. You’ll need to supply a USB cord, as it’s not provided by SDRplay. If you’re like me, though, you already have a number of these around; I prefer USB cables with ferrite chokes (click here for an example).

Note that shortly after I received my review unit, SDRplay made two design changes to the RSP:

1) the F style antenna jack has been replaced with the more common SMA connector, and 2) the chassis color has been changed to black.

There are only two ports on the RSP: the antenna port, and on the other side of the box, a USB B-Type port (see photo above). Connecting it to your computer and antenna are a cinch.

The RSP’s chassis is made of a strong, lightweight plastic. A very simple design, and one that, I expect, would easily survive the rigors of my favorite brand of one-bag air travel to international DX destinations.

Software Installation

Unlike many of the other SDRs I’ve reviewed in the past (see the Elad FDM-S2 and TitanSDR), the SDRplay RSP does not come with a proprietary (OEM) SDR application. Meaning, the SDRplay company does not make their own SDR application that controls the RSP. Instead, SDRplay provides an API to allow application and demodulator development. There are already plug-ins for third-party SDR applications (like SDR# and HDSDR, for example); once installed, these plug-ins create an excellent compatibility bridge with the RSP.

But note that since the SDRplay RSP relies on third-party applications, the installation process isn’t exactly plug-and-play; you must typically download USB drivers, then the SDR application of your choice, and finally (typically) a dedicated plug-in for the software. Yet it’s not a complicated process by any means; SDRplay’s website has links to all of the necessary downloads (http://www.sdrplay.com/downloads.html) and installation manuals (http://www.sdrplay.com/documentation.html). No intimidation factor here.

Advantages and disadvantages of third-party applications

I should also note that I’ve always been a fan of SDR manufacturers offering open compatibility with third-party applications; in fact, when hardware manufacturers have approached me in the development stages of product design, I always suggest they leave room for third-party development.

HDSDR running the SDRplay RSP (Click to enlarge.)

Why? First, as free SDR apps are so widely used in amateur, scanner, as well as shortwave radio circles, there is already a very large user-base for support when you have compatibility issues. Additionally, third-party applications often work on multiple platforms, like Windows, OSX, Linux and even Android/iOS; OEM application tend to work only on Windows OS. Secondly, if you’re already using, for example, HDSRDR to control a radio, adding the SDRplay RSP is very easy, and as a bonus, you’ll already be familiar with the user interface––there’s hardly any learning-curve involved. Finally, I find I’m much less concerned about product obsolescence when hardware is designed to work in such an open-development environment, thus indicating greater potential for forward-compatibility.

Of course, on the flip side, not having an OEM application means that troubleshooting is often more difficult. If you encounter a problem you’ll have to determine whether the problem lies with OS, computer/tablet, USB driver, SDR application, or hardware––or whether the problem is in a combination of two or more of these, or the communication between them.

Fortunately, I’ve been very pleased with the SDRplay support team; this group has promptly addressed any questions or concerns I’ve had. Moreover, the RSP also has an active forum of users (http://www.sdrplay.com/community/).

Scope of review

In most reviews, I focus the majority of my SDR review upon the pros and cons of the application’s user interface. In this case, since the SDRplay RSP is using widely-distributed third-party applications, I can focus primarily on the SDR’s performance, instead.

The SDRplay RSP is currently compatible with the following third-party SDR applications:

The ExtIO screen–available in your application of choice via the RSP plugin–allows you to change the RSP’s IF Bandwidth/Mode, LNA GR Threshold, Mixer and ADC settings.

Indeed, when I asked the SDRplay support team about a comprehensive list of supported SDR apps, they responded:

“We should be compatible with any SDR application that supports the EXTIO library––this is what we are using for SDR# and HDSDR. [We] should also be compatible with any Linux application that uses the gr-osmosdr interface library (such as GQRX and Gnu-Radio).

We have just released it and I’m in the process of writing up the installation instructions. We have also had this running on a Raspberry Pi 2.”

…A Raspberry Pi 2 application? I, for one, can’t wait to try this in the near future––!

For this review, I used two favorite apps with which I’m familiar: SDR# and HDSDR.

SDR# running the SDRplay RSP (Click to enlarge.)

Wideband

I should note here that the SDRplay RSP also has an exceptionally wide frequency range covering from 100 kHz to 2 GHz, with only a narrow gap between 380 MHz and 430 MHz. With the appropriate software, you can use the RSP for a number of applications, for example, scanning, FM DXing, and possibly even radio astronomy.

Performance

So, how about receiver performance?

I’ll going to cut to the chase here: For the $149 price tag? I’m very impressed.

Keep in mind, this is the first SDR I’ve ever reviewed––or even spent more than a few hours exploring––that costs under $400. My only other experience with a low-cost SDR was a few hours spent with the Funcube Dongle Pro+––a popular wideband SDR dongle that also covers the HF spectrum. Frankly, I was disappointed with the Funcube Dongle Pro+, which I found subject to unwanted noises and even some imaging, which I assumed might be indicative of this class of SDR. Fortunately, I’ve not experienced this sort of thing with the SDRplay RSP.

In short: I fully expected $149 performance out of the RSP, but was very surprised to find performance on par with a receiver two or three times this cost.

So for comparison purposes, I chose the Elad FDM-S2 as the benchmark. I currently have three other SDRs in my shack, but the FDM-S2 is the next-lowest in price (currently listed at $539). But to be quite clear: the FDM-S2 is a pretty high benchmark, as I consider it a superb receiver for its price class.

When I first turned on the RSP and tuned through the HF bands, I was quite amazed at the relatively low noise floor of this receiver. Stations seemed to “pop” out of the static. I had assumed that the SDR# application had some sort of DSP noise reduction engaged, but this proved not to be the case––I confirmed the same low noise floor level via the HDSDR application.

SDRplay actually gave the RSP to me on an extended loan, so I’ve had the opportunity to use it both in quiet winter conditions and more unsettled, noisier conditions indicative of spring and summer here in the US. I used the RSP almost exclusively for two weeks in an effort to uncover its most notable strengths and weaknesses. But by the end of the two-week period, I began to suspect that the RSP might actually have sensitivity on par with my other SDRs. To answer this question, I turned to A/B comparisons with the FDM-S2.

Sample audio

I believe the following is a good representative comparison between the SDRplay RSP and the Elad-FDM S2.

The following recordings are of Radio Riyadh on 15,225 kHz. Riyadh’s signal is quite weak and voice levels are barely above the noise floor. Both the Elad FDM-S2 and SDRplay RSP (via HDSDR) were set to a slow AGC, AM sync, and a 8.2 kHz bandwidth.

First, the Elad FDM-S2:

Now the SDRplay RSP:

In this representative sample––and pretty consistently throughout all my comparisons––the FDM-S2 was able to pull voice and music out of the noise better than the RSP. In weak signal DXing, this is important, especially when you’re listening for a station ID.

So would I ever replace my FDM-S2 with the RSP? No.

Still, for a $149 receiver? This performance is most impressive! The RSP is only a little less sensitive than my much pricier SDRs.

Summary

Invariably, all radios have strengths and weaknesses; here is a list of my notes from the moment I put the RSP on the air:

Pros:

Excellent performance for price
Good sensitivity and selectivity
Low noise floor
Compatible with multiple open source SDR applications
Very wide frequency range (frequencies above 30 MHz not tested in this review)
Works with multiple operating systems
Selectable USB/LSB sync detection via supported third-party applications
8 built-in switched preselectors that cover various portions of the RSP’s entire bandwidth
Compatible with a number of excellent third-party SDR applications (see con)
One of the few low-priced SDRs that doesn’t require a converter for HF coverage
Exceptional value

Cons:

~~No OEM SDR app~~ (see pro) SDRuno is now SDRplay’s OEM/native application for the RSP line
Some moderate overloading on very strong stations (though a little tweaking of SDR applications settings can largely remedy this)
~~Via the current offerings from third-party apps, no multi-channel audio recordings~~ SDR Console allows for multi-channel recordings with the RSP

Conclusion:

I walked into this product review expecting to be…well, disappointed. As I have some benchmark SDRs on my desk at all times, I hadn’t investigated inexpensive SDRs because I felt they would simply be redundant.

Fortunately, the SDRplay RSP really impressed me from the beginning with its low noise floor, variable IF bandwidth options, and relative ease of installation. Since the RSP only requires one USB cable for both data and power, it’s also an ideal portable SDR.

Up to this point, I’ve always hesitated suggesting that those interested in a beginner’s SDR invest in any sub-$200 SDR, unless they simply want to get their feet wet and aren’t interested in performance. But at $149 US––the price of a good shortwave portable radio––I can confidently recommend at least the SDRplay RSP to those readers who want to start out with a good-quality rig. Indeed, for many, it might out-perform other receivers in their shack.

I see the RSP having a place in my shack as well, especially on my portable shortwave listening adventures. If you’re looking for a quality first SDR, or, like me, are interested in a supplemental or remote receiver that won’t break the bank, the RSP is just the ticket. And at just $149, you simply can’t lose.

Meanwhile, what’s next for me? I plan try the RSP via the Raspberry PI 2 and my newly acquired Dell Venue 8 tablet.

The SDRplay RSP can be purchased directly from SDRplay via their online store: http://www.sdrplay.com/purchase.php

Resources:

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The Siru Innovatios SDR20 multi-touch portable SDR

A review of the TitanSDR Pro software defined receiver

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The following review originally appeared in the May 2015 issue of The Spectrum Monitor magazine.

It’s no secret…I’m a bit of an SDR geek. Yes, after discovering the power of software-defined radios a few years ago, I’m hooked: SDR listening represents nearly 95% of my home listening and monitoring. And I love it.

As a result, I’m always looking at new SDR technologies to note advances that could improve both my at-home and on-the-road listening––not to mention, satisfy my appetite for spectrum and broadcast recordings.

A few months ago, I heard about a new military-grade SDR called the TitanSDR. Being eager to check it out, I reached out to the Italy-based manufacturer, Enablia; they kindly lent me a TitanSDR Pro for review.

TitanSDR back panel (Photo: Enablia)

But here I must insert a disclaimer. Even though I love SDRs, I always find myself hesitating slightly when it comes to writing a review of one––simply because, when compared with tabletop and portable radios, SDRs tend to be so very complex. While I’m fairly well versed in what to expect of an SDR application, the learning curve (and sometimes even installation curve) can be formidable. And the TitanSDR seemed especially daunting: since it’s designed for heavy, full-duty, multi-channel SIGNET and military use, I expected to need a at least a few days to both install the device and, more significantly, to learn the ropes of the application which drives the SDR.

Fortunately, my fears were unfounded. The TitanSDR and I were in sync almost before I knew it, hinting favorably about an accessible user interface.

First impressions

The TitanSDR ships in a box with the following components: the Titan SDR “black box” receiver, a TitanSDR installation DVD, a printed installation manual, a USB memory stick with a license key, USB cable with chokes on both ends, and a separate regulated power supply.

Not purely a plug-and-play device, the TitanSDR requires a proper three-step installation. Fortunately, the installation manual walks you through the process, which is actually quite simple. Within a mere five minutes, I had the TitanSDR installed and on the air.

The TitanSDR application

The application which runs an SDR is your interface to all of the radio’s capabilities. A top-notch SDR paired with a confusing SDR application will greatly diminish usability and, frankly, sheer enjoyment.

Fortunately, this is where the TitanSDR comes up trumps. To be clear: the TitanSDR has one of the best user interfaces of any SDR I’ve ever tested. While SDR interfaces are subjectively evaluated––some prefer a more dense, involved GUI––I always appreciate simplicity and overall usability over lots of (visible) bells and whistles.

Click to enlarge

I’m especially impressed with how easily the TitanSDR app is designed to cope with multiple band windows, both wide and narrow, while many SDR manufacturers struggle with making an intuitive interface for merely one wideband and one narrowband window, each.

The user interface is divided into three major components: the panoramic scope, the wideband scope, and the narrowband scope. Let’s take a look at each.

Panoramic Scope

TitanSDR Panoramic Scope. Click to enlarge.

When you first open the Titan application and connect the SDR, the panoramic display, which spans the top of the window, comes to life. If hooked up to an antenna, you’ll see spectrum peaks across the display, but you’ll hear no audio because you must first select a wideband and then a narrowband window.

Wideband Scope

At the upper left portion of the panoramic scope, you’ll find a button that allows you to add a wideband selection/channel. After clicking the “add” button, you’ll need to choose the width of your wideband slice. Your choices:

2.1875 MHz
1.875 MHz
1.5625 MHz
1.25 MHz
937.5 kHz
625 kHz
312.5 kHZ

After selecting your wideband width, the wideband scope will appear with the spectrum and waterfall in action. At this point, you’ll still hear no audio, but you’ll see a wideband swatch of frequency represented by your selection.

New wideband selections default with a beginning frequency of 0 kHz. To place the wideband selection into the part of the shortwave spectrum you want to hear or record, you simply click and drag the appropriately colored wideband swatch within the panoramic display to the part of the HF spectrum you wish to monitor.

Selecting a Wideband channel size. Click to enlarge.

Your first wideband selection is labeled in red, the second in green, third in blue, fourth in purple. While there are limits to the number of wideband selections you can make, based on the total bandwidth of your selections [the TitanSDR owner’s manual provides a matrix of possible combinations], each is readily identifiable by color in the panoramic display.

After you’ve created a wideband selection and placed it where you’d like to listen, you’ll now need to make a narrowband selection in order to begin tuning and listening.

Narrowband Scope

Creating a narrowband channel is similar to creating a wideband channel: at the top of the wideband scope window, simply click on the “add” button, and then click within the wideband scope spectrum display to place the narrowband channel where you want it.

Once placed, this new narrowband scope will be visible in the lower right portion of the TitanSDR application window. You’ll also hear audio for the narrowband selection.

The narrowband selection defaults in USB mode, but you can quickly change modes by selecting one from the panel above the narrowband spectrum. Your choices:

USB
LSB
AM
CW
NFM
FSK
DRM (built-in, no separate license needed)
eUSB
eLSB

Tuning

After using the TitanSDR for only a couple of days, I found I was quite comfortable tuning through the bands. Every SDR application has its own quirks; the TitanSDR app gives you several tuning options.

Within a narrowband window, you may tune by:

Clicking the center of the shaded area (representing the frequency and mode you are monitoring) and moving it within the NB spectrum display
By manually keying in the frequency within the frequency display window
By placing the cursor within the frequency display and using the scroll wheel of your mouse to increase and decrease frequency increments
By using hot keys: “Ctrl + K” to increase frequency, “Ctrl + J” to decrease frequency

Tuning within the wideband scope is as simple as clicking and dragging the narrowband shaded area.

Of course, wideband areas can be moved to different parts of the HF spectrum by simply clicking on the shaded wideband area within the panoramic scope and moving it to a different location. But you can only do this if there are no active narrowband channels within the selected wideband channel.

With the ability to load multiple wideband channels with multiple embedded narrowband channels, you might think tuning and manipulating the various channels would get confusing. But this is just not the case. Herein lies the excellent user design behind the TitanSDR.

The software engineers at Enablia obviously put time into designing their application for users who routinely use multiple channels. Each channel is clearly color-coded across the scopes, and selecting them is a simple process: one of four wideband channels via the panoramic display, and one of many narrowband channels via the wideband display. Indeed, TitanSDR produced a brief video (http://youtu.be/XDdilGykSuY) describing how to use the TitanSDR application interface. The concept of selecting and manipulating the various channels is so easy, I actually knew how to do it prior to receiving and installing the software…and all from this eleven-minute video tutorial.

Without a doubt, the TitanSDR user interface is one of my favorites among the numerous SDRs I’ve evaluated.

Speaking of multiple channels, if you have a particular combination of wideband and narrowband channels that you like to load each time, you can save the full configuration and reload it at startup, preserving every frequency and channel. Brilliant.

Recording

For shortwave archivists (like the author of this review!), the TitanSDR is very enticing. Even the most basic version of the TitanSDR allows for 4 wideband channels and 8 narrowband channels of simultaneous recording. This means that you can record a wideband channel and as many as eight individual live broadcasts consecutively. While rarely needed, it’s an impressive feature. Quite often I’ve wanted to record as many as three broadcasts simultaneously; my WinRadio Excalibur, for example, allows for as many as three consecutive broadcast recordings, but limited within a 2 MHz bandwidth. The TitanSDR has no such limitation. You could load four wideband channels across the spectrum––say, one within the mediumwave band, one on 41 meters, one on 31 meters, and one on 10 meters––and record or listen to up to eight individual broadcasts within those channels. The TitanSDR pro will even allow for up to 40 consecutive narrowband channels of recording.

The record and schedule functions are most accessible in the narrowband scope window (above) and the wideband scope window.

The record and schedule functions are prominent in the narrowband scope window (above) and the wideband scope window.

What’s more, the TitanSDR has one of the most versatile automatic file naming systems I’ve ever used. Not only can it embed the date, frequency, and mode, but also the start time and end time. It also has a user-defined string which allows for more file name customization. And another nifty feature: the Titan can be set to embed either local or UTC time in the filename.

Yet another feature the archivist in me delights in? You can schedule narrowband and wideband recordings within the application––no need for an external program or macro.

Missing features?

As a product designed specifically for military and government applications, the Titan application currently lacks many of the features you might expect in a $1000+ software defined receiver. The version of the TitanSDR application (at time of publishing this review) lacks a variable notch filter, 90 second waterfall review, and an embedded time stamp––features one might well expect from a receiver in this price class.

Prior to publishing this review, I contacted Enablia with a list of features I thought should be included, and they agreed that these features should be added to appeal to the ham radio and shortwave listening customer base. Indeed, within a matter of two weeks, I was sent a new version of the Titan application with the addition of a number of keyboard shortcuts that I recommended. A few weeks later, I received another update which included the ability to set the maximum size of spectrum recording “chunks” to anything between 50MB and 2GB. Enablia plans to add more of the features for the radio hobbyist in time, but after this review has been posted.

If you’re seriously considering purchasing the TitanSDR, you might contact Enablia first to see if and/or when these features are to be added. I’m confident they will be added in time.

Summary

When I begin a radio review, I keep a checklist of pros and cons as I discover them to remind myself of my initial discoveries.

Here’s my list from the TitanSDR:

Pros:

Superb sensitivity and selectivity
No less than 16 preselectors (hardware)
Brilliant application user interface, one of the best I’ve encountered
- Simple controls, logically laid out
- Effective selection system to move between narrow/wide band windows
- Customizable waterfall and spectrum displays
- Frequency display can be set to Hz, kHz or MHz
- Full panel configuration with multiple custom wideband and narrowband channels can be saved and loaded in the future
Recording functionality
- Up to one spectrum recording can be made, while four wideband windows may be open
- Between 8-40 AF/Audio recordings can be made simultaneously live or from wideband recordings
- File naming convention automatic with excellent customization options
- Full recording scheduling in both wide and narrow bands
- Spectrum recordings can be parsed to anything between 50 MB to 2 GB each, or left to grow to without a size ceiling; like other SDRs, recording chunks are played consecutively
Excellent overall build quality
SDR application very stable and quick to load
Supplied power supply is regulated and quiet
TitanSDR application updates are simple to install
Enablia support has been responsive

Cons:

Both the TitanSDR and TitanSDR Pro are pricey for most radio enthusiasts
Missing some features that would be expected in a radio of this price class (though Enablia have confirmed these features may be added in future updates):
- No notch
- No waterfall review
- Neither embedded time code nor memory labeling in spectrum display
Windows/PC only (not supported by OS X or Linux)

Conclusion

No doubt, I’m impressed with the TitanSDR, performance-wise. It’s as sensitive and selective as any SDR I’ve ever tested. Serious weak-signal DXers will be pleased with this rig.

Of course, there’s the daunting price tag of the TitanSDR, which makes it clear that this was a receiver designed for government and commercial use: the basic version of the TitanSDR retails for 1380 EUR, the TitanSDR Pro for an even heftier 1970 EUR.

This pricing places it well above the Microtelecom Perseus, WinRadio Excalibur and Elad FDM-S2, all of which can be purchased for $1000 or less.

Who might benefit from the extra cost of the TitanSDR? Those who need a receiver with a very robust front end. With no less than 16 pre-selectors, the TitanSDR is a great choice for those living in the vicinity of blowtorch radio stations. If you’re looking for a stable, easy-to-use flagship SDR with a rock-solid application to support it, you might just splurge on this impressive SDR.

I always ask myself at the end of a review if I would purchase the equipment I’ve spent a couple of months evaluating. I can honestly say that if I had the money, I would not hesitate to purchase the basic version of the TitanSDR. With its four wideband and eight narrowband channels, it would more than suit my receiver needs as a broadcast archivist.

1,380 EUR buys the basic version of the TitanSDR – With four WB (Wideband) channels, eight NB (Narrowband) channels (to be allocated on WB channels) and VAC (virtual audio) interfaces to third party SW decoders, this is a solid and adaptable SDR.

1,970 EUR buys the TitanSDR Pro – With four WB channels, 40 NB channels (to be allocated on WB channels), VAC interfaces to third party SW decoders, basic LAN control and plug-in software interfaces (by LAN Ethernet) to software decoders CODE300-32 by Hoka Electronic (http://www.hoka.net/products/code300-32.html) and Krypto500 by Comint Consulting (http://www.comintconsulting.com/k500.html), this SDR can sing and dance.

View TitanSDR purchasing information and options on Enablia’s website: http://www.enablia.com/titansdr-receiver.html

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Raspberry Pi 2 API for the SDRplay RSP

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Many thanks to Jon Hudson at SDRplay who notified me that they have released a Raspberry Pi 2 API for the SDRplay RSP receiver. Note that the API is a “pre-release” version and you’ll need to reference the included Linux installation notes.

If you have the RSP and a Rasberry Pi 2, you might consider trying the new software. The SDRplay development team are eager to hear feedback.

Click here to download.

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