Category Archives: Radios

Sangean HDR-14: a new AM/FM HD pocket radio

Many thanks to SWLing Post contributor, Steve Lekuecher, who writes:

A technology forum friend recently noticed Universal Radio listed a new Sangean HD portable (HDR-14) on their website which is very similar in form to the Sangean DPR-65 and I was curious if you are considering reviewing it.

https://www.universal-radio.com/catalog/spcialty/0214.html

Thanks for the tip, Steve! Yes, I’ll certainly review the HDR-14!

I was unaware the HDR-14 was in the works, so I reached out to Sangean who supplied a little more detail.

The Sangean HDR-16 sports stereo speakers, but it limited to five presets per band.

It sounds, of course, like the HDR-14 will retail at a lower price than the larger HDR-16 (which is currently down to $99.99 shipped on Amazon).

I’ve been evaluating the HDR-16 this fall and have been favorably impressed overall.

I expect to post my review of the HDR-16 within the next two weeks.

Sangean plans to start shipping the HDR-14 mid to late January 2018. I’ll order it as soon as it’s on the market. I’m intrigued by the HDR-14 because of its size–very compact. I’m very curious, though, if it can match its larger brother (the HDR-16) in terms of sensitivity and overall performance. We’ll soon see.

Thanks again, Steve, for the tip!

I’ve posted an image of the sales flyer below. Click on the image to enlarge:

Sony ICF-6800W: Dan notes a possible record sales price on eBay

 Many thanks to SWLing Post contributor, Dan Robinson, who writes:

A couple of years ago I did a talk a the annual SWL Fest on the best radios of all time (in my opinion anyway). The SONY ICF-6800W was among them, for reasons I think are valid — high sensitivity and beautiful audio, the major ones. Now, one has sold for what could be a record price on eBay — more than $1300. This shows how much folks are willing to pay for 6800Ws that still have the original box….

Wow–to many the ICF-6800W is a “Holy Grail” receiver. Amazing that it has held its value so well. If memory serves, it’s not the easiest radio to work on, but is certainly serviceable.

Thanks for the info, Dan!

The thrill of the hunt even knowing there is no “perfect” radio

Though I own a number of portables that have better performance specs and ergonomics, I still gravitate to my ICF-SW7600GR.

Most recently, I received correspondence from Golan Klinger who has been bitten by the radio bug (he calls it “radioitis”). He has been acquiring portables and comparing them, seeking his favorite overall.

Golan had an epiphany he recently shared with me:

Thomas, in your “Mega Review” [summarizing your radio preferences] you wrote:

But this is my personal choice; you might have a completely different answer. I guess that’s the point I made earlier–it all depends on the listener.”

Of all the valuable advice I’ve gleaned from your website, that might be the most important.

Every radio seems to have its own personality and one can read and watch all the reviews in the world but there’s no substitute for sitting down and actually listening to a radio.

I just had an epiphany — there can be no perfect radio and even if there were, finding it wouldn’t be half as much fun as the search for it.

That’s why everyone has multiple radios and when asked which is their favourite they lean back and say, “Well…”

What a wonderful hobby this is turning out to be!

You nailed it, Golan.

Indeed, with most every review I post I receive both praise and criticism later from readers. To some, sensitivity is everything–to others, it’s audio fidelity. Some listeners seek optimal reception on particular bands: longwave, mediumwave, the 31 meter band, FM, etc. There are even some who place a great deal of importance on the design and aesthetics of the radio. When I write a review, I do my best to walk in the shoes of all of these folks. It’s not an easy task.

When I’m not writing a review and am only concerned with what I value in a radio, it’s a balance of performance, flexibility and ergonomics I seek.

But as you say, there is no “perfect radio” out there that could satisfy everyone. I doubt there ever will be.  Each listener has their own set of preferences–the checklist that matters to them most.

I’ll admit that part of what drives me to do radio reviews is my curiosity and the hope that each upcoming model might be a step closer to the elusive “Holy Grail” radio; for me and for you. It’s all about the thrill of the hunt!

Thanks for sharing, Golan!

A review of the SDRplay RSP1A software defined radio

 

Today, SDRplay, the UK-based manufacturer of affordable software defined receivers, announced a new addition to their product line: the SDRplay RSP-1A.

The RSP1A joins the SDRplay product line of the RSP2 ($169.95 US), and RSP2 Pro ($199.95 US). The new RSP1A will retail for $99.00 US.

But what of this SDR’s performance?  In a nutshell: as of today, I’d contend that the RSP1A will simply be the best SDR value on the market. End of story. There is nothing I know in the $99 price bracket that can beat it.

How do I know this?  I can make this statement with confidence because I have been involved with real-world testing and evaluation of the RSP1A Alpha, Beta, and production models since May. I took the RSP1A with me to Canada this past summer for field recordings with my laptop, and I’ve also evaluated the RSP at my home. Like a number of other reviewers, I’ve been intimately involved with putting the RSP1A through its paces. And let’s just say I like what I’ve seen.

I actually do quite a bit of Alpha and Beta testing for manufacturers. While it’s time-consuming volunteer work and requires meticulous attention to minor details, it gives me an opportunity to have meaningful positive impact on an upcoming product. Manufacturers that actively involve enthusiasts in their testing phase tend to produce better-quality products on the first run. Better products, of course, mean a better radio market with options for those only now discovering the mystery––and fun––of radio as well as DXing.

Since the RSP1A is essentially iterative agility on behalf of SDRplay, the RSP1A was surprisingly solid even in its early release. And try as I might, there were very few issues I ever needed to report back to the engineering team. SDRplay took each item of feedback seriously, logged it, and followed-up. Over the course of the evaluation period, SDRplay improved their dedicated SDR application SDRuno, as well.

In essence, the RSP1A hardware now in production and shipping has been thoroughly tested and is ripe-and-ready for your radio adventures.

I have not compared the RSP and RSP1A side by side; running two instances of SDRuno on the same PC has been problematic. To my ear, when I’ve tested one after the other, the RSP1A serves up slightly better sensitivity, perhaps due to a slightly lower noise floor. Also the RSP1A frequency stability is much improved over the RSP1.

Specifically, the following upgrades have been made per SDRplay:

  • ADC resolution increased to 14-bit native for sample rates below 6 MHz, increasing to 16 bits with decimation
  • Enhanced RF pre-selection (greater filter selectivity plus 4 additional sub-bands compared to the original RSP1) for reduced levels of spurious responses
  • Improved LNA architecture with variable gain––the RSP1 had just a single gain step
  • Improved intermodulation performance
  • Performance extended to cover 1kHz to 2 GHz with a single antenna port.
  • Bias-T facility
  • Improved frequency stability incorporating a 0.5ppm TCXO (software trimmable to 0.01ppm)
  • Selectable broadcast AM/FM/DAB notch filters
  • RF shielding within the robust plastic casing

Performance

Suffice to say, this budget SDR delivers, and users will be wooed by its stellar performance.

I’ve spent 95% of my evaluation time on the HF and mediumwave bands and I’ve been impressed with the receiver’s sensitivity, selectivity, and AGC control. The audio fidelity is also highly customizable since it’s pumping audio directly through your PC’s system.

I haven’t spent any time above the aviation bands (higher than 140 MHz); I have, however, tested the RSP1A thoroughly on the FM broadcast bands and found it a solid FM performer. Note, too, that SDRuno’s built-in RDS decoder window provides quite a lot of data.

I’m also pleased that I haven’t noticed any front-end overloading––this, despite the fact that during travel, I’ve used it in the vicinity of some powerful broadcasters.

Comparing to benchmarks

I’ve compared the RSP1A to the Elad FDM-S2 ($500), WinRadio Excalibur ($900) and Microtelecom Perseus ($900).

The WinRadio G31DDC “Excalibur”

But let’s be clear, here: this is not an “apples-to-apples” comparison since the RSP1A is a fraction of the cost of the others, and is also a wideband receiver (1 kHz to 2 GHz). The only other SDR I own that has VHF coverage is the FDM-S2, which tops out at 160 MHz.

Pricier HF-focused SDRs have distinct hardware advantages––especially in terms of filtering––that give them an edge over budget wideband SDRs. Still, in my comparisons, the RSP1A holds its own quite well.

Compared to the WinRadio Excalibur, for example, this SDR came fairly close in terms of sensitivity.  The WinRadio’s synchronous detector––which I consider to be the best in the business––was indeed more stable than that of the RSP1A. The RSP1A sync lock could falter a bit during a weak signal’s QSB dip compared with the Excalibur.

But again, HF SDRs in the league of the FDM-S2, Excalibur, and Perseus have the luxury of designing receiver architecture around a much smaller portion of the spectrum. If you are a hard-core DXer looking for uncompromised performance on the HF/MW bands, then you should invest in one of these benchmark SDRs. I have, and I’d never give one of them up.

With that said, even though I have these amazing benchmark SDRs at my disposal, I still purchased the original RSP1 (then at $159 US) years ago. Why?  For one thing, it’s more portable than the Excalibur or Perseus as it requires no external power supply (like the excellent FDM-S2, the RSP derives its power from the USB data cable). Additionally, I do like to play with frequencies above 50 MHz from time to time. The RSP offers up an all-in-one RF toolbox at a very affordable price. I don’t hesitate to throw the RSP in my pack and take it anywhere I’m travelling. If it gets damaged or lost, I’m only out $99––not $1,000.

Again, RSP1A’s bang-for-buck simply blows my mind.

Side note: I do wish someone would develop an accessory outboard filter box that could be implemented with budget wideband SDRs, thus providing, in a sense, a hardware “upgrade.” Something like the Elad SPF-08 preselector box designed for the FDM-S2

Any cons?

This review has been overwhelmingly positive because, frankly, the RSP1A is challenging to find fault with. Of course, if it carried a price tag of $600-900, I’d be much more critical of its performance as compared with my benchmark receivers in that same price class. I’d fully expect a robust preselector system, a bullet-proof front end, and performance that could match or surpass the benchmarks.

But for just $99? You simply can’t get that kind of hardware for that cost.  So SDRplay engineering cleverly pulls every bit of performance out of their receiver by focusing on their SDRuno application, which is optimized for this receiver.  And for that reason, it’s in a class by itself.

Admittedly, when SDRplay first introduced their application, SDRuno, I wasn’t the biggest fan. I found it rather quirky and a little cumbersome to use. SDRuno has come a long way, though; SDRplay has continuously improved it, and today, I prefer it to HDSDR and SDR console. SDRuno is much less cumbersome to use than it used to be, and the default window arrangement is pleasing (though I’d still like SDRuno windows to lock and act as one window as I flip through programs on my Win 10 PC). I even prefer SDRuno to Elad’s application in terms of ease of use.

If more AF/IQ recording features are added (virtual receivers, for example) it could even become my application of choice.

The great thing about the SDRplay RSP series, however, is that they’re supported by so many third-party SDR apps. If you don’t like the one you’re using, there are numerous others to chose from. SDRplay takes an affirmative stance that their hardware should be usable on as many platforms with as many applications as possible. Kudos to them.

Here’s a question I know I’ll be asked…

“I just purchased the RSP1. Should I upgrade?”

Good question! As you might guess, my answer is fairly simple and depends on your particular needs:

If you’re happy with the RSP1 and see no real benefit in the RSP1A upgrades above, don’t bother upgrading. Seriously…enjoy what you have! The RSP1 is still a sharp, capable, versatile little SDR and fully supported by SDRplay and its community. I’ve worked some incredible DX with mine over the past few years, and love it.

If you like the sound of the RSP1A and would appreciate the upgrades listed above, then go for it! After all, it’s only $99! Consider this: the price is less than that of my recently reviewed Digitech AR-1780 portable and less than the venerable Tecsun PL-660. Even with a modest external antenna, it will perform circles around these rigs.

If you need an excuse to justify the upgrade to the RSP1A, consider doing what I’m planning to do: give your RSP1 to a friend or someone interested in the hobby. Or, donate it to your radio club as a raffle prize. Then too, of course, you can snag a decent price for it by selling it on eBay or QTH.com.

Summary

While a little busy, I do enjoy the combined spectrum display option on SDRuno.

If you can’t tell, I’m most impressed with this latest offering from SDRplay. I can recommend it with confidence because you simply can’t beat the performance and features for the price.

If you’re considering the RSP1A as your first SDR, you’ll be happy to know SDRplay’s Mike Ladd has also amassed a healthy number of SDRuno instructional videos on YouTube as well. If you start with the first video, by the end of the series you’ll be adept at using SDRuno. Couldn’t be easier.

Think of it this way: The RSP1A is the sporty-but-affordable compact car of the SDR world. It delivers performance well above its comparatively modest price and is fun to operate. In terms of DX, it gets you from point A to point B very comfortably––and quite affordably!

With just $99, there’s no reason you can’t join the world of SDR––the RSP1A is a very accessible, very intuitive SDR start your exploration of the radio spectrum.

Click here to view the RSP1A at SDRplay’s website.

SDRplay announces the RSP1A software defined radio

(Source: SDRplay Press Release)

15/November/2017, Wakefield UK:

SDRplay announces the RSP1A

SDRplay Limited has today announced the launch of a new Software Defined Radio product – the RSP1A.

The SDR-play RSP1A is a major upgrade to the popular RSP1 and is a powerful wideband full featured 14-bit SDR which covers the RF spectrum from 1 kHz to 2 GHz.

Due to its exceptional combination of performance and price, the RSP1 has proved to be a very popular choice as an “entry level” SDR receiver. Since launching the RSP1, we have learned a great deal about what people are looking for in SDR receivers, and where possible, we have incorporated these improvements and new features into the RSP1A.

The RSP1A therefore delivers a significant number of additional features which result in benefits to amateur radio enthusiasts as well as significant benefits for the scientific, educational and industrial SDR community.

Here are the main additional features of the RSP1A compared to the original RSP1:

  • ADC resolution increased to 14-bit native for sample rates below 6 MHz, increasing to 16 bits with decimation.
  • Enhanced RF pre-selection (greater filter selectivity plus 4 additional sub-bands compared to the original RSP1) for reduced levels of spurious responses
  • Improved LNA architecture with variable gain. The RSP1 had just a single gain step.
  • Improved intermodulation performance • Performance extended to cover 1kHz to 2 GHz with a single antenna port.
  • Bias-T facility • Improved frequency stability incorporating a 0.5ppm TCXO (software trimmable to 0.01ppm)
  • Selectable broadcast AM/FM/DAB notch filters
  • RF shielding within the robust plastic casing

When used together SDRplay’s own SDRuno software, the RSP1A becomes a high performance SDR platform. The benefits of using the RSP1A with SDRuno include:

  • Highly integrated native support for the RSP1A
  • Calibrated RF Power Meter with more than 100 dB of usable range
  • Calibrated S-Meter including support for IARU S-Meter Standard
  • The ability to save power (dBm) and SNR (dB) measurements over time, to a CSV file for future analysis
  • The IQ output wav files can be accessed for 3rd party applications

SDRplay has also worked with developers of the popular HDSDR, SDR-Console and Cubic SDR software packages to ensure compatibility. As with the RSP1, SDRplay provides multiplatform driver and API support which includes Windows, Linux, Mac, Android and Raspberry Pi 3. There is even a downloadable SD card image available for Raspberry Pi3 which includes Cubic SDR.

The RSP1A is expected to retail at approximately £76 (excluding taxes) or $100 (excluding taxes)

For more information visit our website on www.sdrplay.com

About SDRplay:

SDRplay limited is a UK company and consists of a small group of engineers with strong connections to the UK Wireless semiconductor industry. SDRplay announced its first product, the RSP1 in August 2014

Email: admin@sdrplay.com

Introductory video:

Click here to view on YouTube.

Click here to check out the RSP1A at SDRplay.com.

Purchasing the Digitech AR-1780 directly from Jaycar

Last week, I posted a review of the Digitech AR-1780–a compact receiver that is only sold in Jaycar retail stores throughout Australia and New Zealand.

Since I live in the US, I purchased my AR-1780 via an Australian distributor on eBay.

Several SWLing Post readers discovered direct orders can be placed with Jaycar, thus taking advantage of Jaycar’s sales.

A couple weeks ago, Post reader, Paul, shared his correspondence with Jaycar where they implied an order could be placed via email directly with a Jaycar representative. I reached out to this representative for clarification because I felt uneasy about even suggesting that readers send credit card information over email. I asked if they had a secure order form. I never heard back from Jaycar and have been too busy to follow-up.

Turns out, SWLing Post contributor, Troy Riedel, just placed an order for the AR-1780 via Jaycar and shared the details–all it takes is a phone call. Troy writes:

I ordered the AR-1780 from Jaycar.

I contacted them through their web site, exchanged emails with a Customer Service Supervisor and she told me that they actually have a toll-free U.S. number that goes to their Australian call center (staffed during their business hours)! FYI, it’s:

1-800-784-0263

I got it for $134 AUD or $103.40 USD shipped!

Thanks for sharing, Troy! A great option for ordering Jaycar products in the US.

If any Post readers in Canada have also successfully placed an order through this toll free number, please comment!

Video: Dan’s RNZI reception

Many thanks to SWLing Post contributor, Dan Hawkins, who writes:

Thomas, this RNZI transmission is on the new schedule:

Click here to view on YouTube.

RNZI is exceedingly well received at my location. That may have something to do with the following factors.

1. The RNZI antennas were designed, built and are maintained by a contractor located in the San Francisco Bay Area.

2. This contractor has SW receiver locations in the SF Bay Area.

3. I am located about 50 miles away from the SF Bay Area receivers and in-line to the New Zealand signal path.

Then again, maybe not. LOL.

Time: 09:00 10-31-2107 UTC. Frequency: 9765 kHz. Receiver location: Davis, California, USA. Radio:Sangean ATS-909X. Antenna: 83m horizontal loop. Transmission distance: 6,600 miles.

I do love RNZI–thanks for sharing, Dan. Indeed, since the demise of Radio Australia on, RNZI has become the voice of the Pacific on shortwave. Amazing signal!