Category Archives: New Products

SDR Touch: An Android-based software defined radio

SDRtouchThough not available for the shortwave bands, Google Play reviews are mostly positive for the new software defined radio application that will run on your Android phone or tablet: SDR Touch.

According to the Google Play page, SDR Touch covers 50 MHz to 2.2 GHz and demodulates WFM, AM, NFM, USB, LSB, DSB, CWU and CLW signals. It requires an inexpensive USB rtl-sdr compatible USB DVB-T tuner. Click here to search eBay for RTL-SDR receivers. You then connect to your Android device via a USB OTG cable and SDR Touch should control the receiver.

SDR Touch’s Google Play website has a list of supported receivers–make sure to check the model number from eBay against this list before purchasing. Additionally, you should install their free demo SDR app to make sure your Android device is compatible.

This video shows SDR Touch in action on the FM broadcast band:

SDR touch claims that crashes should be expected as this app is still considered somewhat experimental.

Would be great if SDR Touch could support the HF bands some day.

CommRadio is introducing the CR-1, a new tabletop shortwave receiver

The CommRadio CR-1

The CommRadio CR-1

US-based CommRadio is introducing a new tabletop, SDR-based, shortwave receiver this year: the CR-1. Their website has a few specifications and the video I’ve embedded below.

The CR-1 receives the full medium wave and shortwave spectrum (.5-30 MHz), plus some portions of VHF and UHF (FM broadcast band, Aircraft, Marine, NOAA weather radio, GMRS and FRS services).

The receiver architecture is a dual conversion super-heterodyne design with low-IF , I-Q digital sampling, 16 bit DSP with digital audio CODEC.  Their website also mentions DSP algorithms for all demodulation: DSB-AM, SSB, CW, WBFM, NBFM and channel filtering.

Other impressive features:

  • Can be powered from USB or a 6-18 VDC power source (from a separate 2.1mm jack).  The CR-1 possibly has the most flexible power source I’ve ever seen in a shortwave receiver!
  • The knobs are black anodized machined aluminium and front panel is powder coated machined aluminium; case is 20 gauge powder coated steel
  • Three antenna inputs
    • BNC for HF/MW
    • 3.5 mm audio jack (rated at 1000 Ohm, for roll-up antennas or telescoping whip),
    • BNC for VHF and UHF
  • Very portable size!

Full specs are available on their website: commradio.com

We will also keep you posted with any future updates.

The new Degen DE1129A sports RDS, but is there really a version with keypad?

Thanks to a tip from the Herculodge, I discovered the DE1129A: a version of the recently reviewed Degen DE1129 with RDS. RDS is a very useful feature–especially for instant FM station ID on the go.

The DE1129A is available from Anon, a trusted Degen distributor from Hong Kong, on eBay. I have purchased from them before and have been very pleased with their service. Click here to view their listings.

If you’ve been sitting on the fence about purchasing the DE1129, perhaps RDS will sway you toward purchasing this portable radio with integrated digital recording and playback.

Frankly, I was unimpressed by the DE1129. Though the radio has very good FM reception and an impressive little speaker with bass response,  I believe the majority of shortwave and medium wave radio listeners would be upset with its overall performance.  I can’t imagine that Degen’s updates would bring dramatically improved performance on the shortwave and mediumwave bands. If nothing else, the lack of a number pad to directly input frequencies, would put me off. Cruising through the shortwave bands at slow 5kHz steps with noted muting between frequencies make band-scanning a chore on the DE1129.

According to TecsunRadio.com, this image was altered by Degen to show what the DE1129 would look like with a number pad. It’s obvious that the image has been altered by Photoshop or another graphics application.

DE1129 Number Keypad?

Speaking of a number pad…earlier this year, TecsunRadio.com told me that there would soon be a version of the DE1129 with a number keypad.  They published a prototype image (see right). When I first saw this image, I could instantly see that it had been Photoshopped; obvious use of cloning tools and the fact that the number pad characters are not in alignment with the buttons really stand out. Still, for a prototype image, it gives you a good sense of what the final product will look like.

Within weeks, I started noticing the keypad version of the DE1129 appearing in search results on eBay and had assumed it was in production.

This eBay seller shows a version of the DE1129 with number pad, but the image is the Photoshopped image (see above) released from Degen earlier this year.

This morning, I opened an eBay listing of the DE1129 keypad version (see image on right) from pbuying.usa. Their listing clearly shows the same Photoshopped image from above. I then noticed that neither the product description nor any other image they feature indicates a number pad on the DE1129. I wrote a message to them this morning asking for clarification and will update this post with their response.

UPDATEpbuying.usa confirmed that his radio does not have a number pad and was apologetic and thankful that it was pointed out. The image has been removed.

I mention this as a note of caution: On eBay, you should always confirm any discrepencies before purchasing.  Though you could rightfully return the radio and get a refund, return shipping to Hong Kong/China (which you would pay for) could be in excess of $20-25 US.

By the way, though the addition of a number keypad on the DE1129 would make this radio at least 50% more usable, it would not sway me to recommend it because receiver performance is so mediocre. Check out my other review notes here.

I’m very curious if any SWLing Post readers have actually received a keypad version of the DE1129–please comment!

The Degen DE32 combines analog styling with MP3 features

The Degen DE32

I just ordered the Degen DE32–a new addition to the Degen shortwave product line. The DE32 is unique in that it has a (nearly retro) analog radio dial for tuning across the FM/AM/Shortwave bands, yet features MP3 playback.

Details are a bit scarce, but I have to assume that this is an analog radio as I see no mention of DSP in the description. (Though building on the DE321’s DSP chip could make sense.) It appears that MP3 recordings can be played back from an SD card and/or potentially from internal memory. Since there’s no digital display, sorting through recordings will be similar to using the iPod shuffle.

At $27 US shipped from Hong Kong, it’s certainly affordable, and my expectations will be adjusted accordingly. Still, I’m eager to see what this little radio has to offer. Check back as I will publish a review soon–simply follow the tag: DE32.

Thanks, Michael, for bringing this little radio to my attention!

Degen DE1129 with English buttons, now on eBay

(Photo: eBay)

An English labeled version of the Degen DE1129, which I recently reviewed, is now available from a Hong Kong Seller on eBay. It appears that pricing is $69 US with shipping.

Click here to search eBay for the Degen DE1129

Thanks to the Herculodge for the tip!

Click here to read our full review of this radio.

The Degen DE1129 unboxed: initial impressions

Degen DE1129 and box (Click to enlarge)

Yesterday, I received a sample Degen DE1129 from TecsunRadio.com, which is, to my knowledge, the only current distributor of this newest Degen. I paid extra for DHL shipping to get it quickly to my door, as I’ve been very curious how this new radio stacks up against similarly-priced portables on the market–especially in light of the number of emails I’ve gotten from readers asking about this particular radio.

The DE1129 promises a lot: AM/FM/Shortwave coverage and a fully functioning MP3 player/recorder.

I have only played with the DE1129 for a few hours, thus have only developed some initial impressions of the unit.  (A full-fledged comparison review will be coming in the very near future–simply follow the tag DE1129).

My very first impression–?  The DE1129 is just a wee little radio–much smaller than I had imagined. Indeed, though its box (pictured above) isn’t very large, it’s a cavernous container for such a minute radio. Size-wise, it’s certainly within the realm of the ultra-portable. Note its size in comparison with my Grundig G3 and Tecsun PL-380 in the photo below:

For those of you not familiar with the size of these two radios, we’re talking quite small–the Degen is just a little bigger than a pack of cards, easy to hold in one hand.

There is no mistaking the fact that this radio is DSP-based. When you turn this Degen on, it seems to boot up, like a computer–a process which takes about four seconds. It starts where you left off, i.e., at your last frequency, or in the MP3 player, if you were listening to an audio file, just before turning it off.

The Degen DE1129’s display is small, but contains a lot of information (Click to enlarge)

The display on the Degen is back-lit, although the buttons are not. The display, moreover, has an incredible amount of information for such a tiny screen. Fortunately, it is crisp enough to read easily.

You’ll note that all of the buttons are labeled in Chinese Mandarin–since I don’t know or read Mandarin, I found that this English translation of the front panel came in very handy.

I can’t comment on the performance thus far, as I can tell that the learning curve is going to be slightly steeper than usual.  I have yet to determine how to change the steps, bandwidth, AGC control (if there is one), and recording volume level.

Changing between receiver modes is simple enough; volume and tuning, of course, are intuitive.

I have very little to base a review on yet, but I can say this:  I love this Degen’s compact size, crisp display, and am impressed that its tiny built-in speaker actually has some bass response. This is the first shortwave radio I’ve reviewed that (like the Grundig G2 and Degen DE1128) has a slim rechargeable battery pack instead of accepting the typical AA batteries most portables use. No doubt, this is how they keep the size of the unit so small and its profile so slim. Is this a pro or con? Battery longevity will tell.

The back of the DE1129 (Click to enlarge)

Any negatives? Just superficial ones at this point.  Most notably, I’m disappointed in the unfortunate combination of no back stand (see photo) and a fixed, non-rotatable, telescopic whip antenna. This means that when listening to shortwave with the whip fully extended, you pretty much have to hold the DE1129 in your hand. Even if you have a universal portable radio stand (like this one), you won’t be able to make the antenna vertical in relation to the ground–rather, it will be fixed with only the ability to move from left to right.   This is, alas, poor product design, as a radio so slim has very little stability when standing with the antenna fully extended; even a slight breeze can potentially tip it over.

Also, the Degen DE1129, like the Tecsun PL-380 (and many other DSP-based radios), “chuffs” while tuning–meaning, it mutes between frequency changes. This is a pet peeve of mine, as I prefer a more uninterrupted analog-like fluidity while band scanning.  I’ll experiment to learn whether there is a way to minimize this.

Again, look for a more complete review in the near future as I test this little radio against the (similarly priced) Grundig G3 and the (more affordable) Tecsun PL-380. Simply follow the tag DE1129 or subscribe to our email updates by clicking on the link in the right panel of our site.

Degen DE1129 front panel: Alex provides Russian translations and English corrections

Click to enlarge (Source: TecsunRadio.com)

A few weeks ago, I posted an image with English translations of some of the buttons on the Degen DE1129 front panel.

Alex, an SWLing Post reader, commented with the Russian equivalents for some of the buttons and corrections to the one posted at TecsunRadio.com (see photo). As he points out, even in the English translation the “voice+” and “voice-” buttons are actually the +/- of the volume control.

Now that I’ve had time to use the DE1129 myself, I believe the button labeled “mode” should actually be translated as “menu.”

Here are some Russian equivalents from Alex:

Thanks, Alex!