Category Archives: New Products

Sangean HDR-15/DPR-64 and notes from 2019 catalogs

1 Reply

The Sangean HDR-15

Many thanks to SWLing Post contributor, Mike Schuster who writes:

Hi Thomas,

Sangean has quietly buried yet another AM/FM HD radio in the PDF of their US 2019 catalog [download as a PDF].

It’s the HDR-15 which appears to be a small clock radio/phone dock [photo above].

Also, in their European catalog [click here to download as PDF] they are transitioning all of the model names to a more descriptive grouping. So the SR-35 is now the “Pocket 100”, the DT-160 is now the “Pocket 160”, and the DT-800 is the “Pocket 800”.

There is also a new DAB+ portable, the DPR-64 (em … er …”Pocket 640“) whose cabinet is rounder and smaller than the DPR-65 (em … er … “Traveller 650“) whose cabinet they adapted for the American HDR-14. Wonder if there will be a forthcoming US HD-radio portable based on this cabinet design. This looks very interesting to me as a potential DAB+ travel radio, priced at about $100 and already available from several European and Australian electronics houses.

Thanks for the tip, Mike! I enjoyed checking out both the US and European catalogs. Sangean is certainly embracing DAB+ and HD Radio.

I see Sangean also includes two shortwave radios: the ATS-909X and ATS-405.

In the EU catalog, they’re referred to as the “Discover 909X” and the “Discover 405.”

Click here to view the Sangean EU website and here for the Sangean US website.

Spread the radio love

SDRuno Version 1.3 now has Frequency Scanning feature

1 Reply

Many thanks to Jon Hudson with SDRplay who shares the following announcement:

SDRplay is pleased to announce the release of SDRuno v1.3. This is a major upgrade to SDRuno, which adds a number of important new features and is intended for all RSP models including the now discontinued RSP1.

Major new features include:

Frequency Scanning (for both frequency ranges and stored memory panel lists)
I/Q ? Audio Output (for CW Skimmer for example)
A new configurable IF AGC scheme

For a full list of additions/changes and bug fixes, please see the release notes at: https://www.sdrplay.com/docs/SDRplay_SDRuno_Release_Notes.pdf

This release of SDRuno uses a new version of the Windows Service based API (3.02) and so users that also used other applications such as dump1090 and HDSDR with the previous version of the Windows Service based API (3.01) will need to download and install the latest versions of API, dump1090 and the ExtIO plugin from our website at https://www.sdrplay.com/downloads

We have produced two new video guides which describe the use of the Frequency Scanner and I/Q Output functions. Links to these videos along with many others can be found by going to the SDRplay Applications and support catalogue on https://www.sdrplay.com/apps-catalogue/  , and on our Youtube Channel on https://www.youtube.com/c/SDRplayRSP

However, the two new videos can be viewed directly by going to:

https://youtu.be/ndMWIK1JLbQ (New Features in SDRuno 1.3 – Scanning and AGC)

https://youtu.be/w_pH56aOdE0   (SDRuno IQ output and CW Skimmer guide)

The ExtIO version of SDRuno can still be downloaded from our downloads page and is included in the SDRuno 1.22 release. Make sure to install it in a different directory to 1.3 otherwise it will stop 1.3 from working.

For any questions  or help regarding this new release, please contact SDRplay support via our dedicated support system at: https://www.sdrplay.com/support
For any other suggestions, please email [email protected]

Finally, we recommend that all users join our community forum where there is a wealth of knowledge and help available for using our products and software in a wide range of applications and circumstances. This forum can be found at: https://www.sdrplay.com/community

Spread the radio love

Stan compares the C. Crane CCRadio3 with the CCRadio2E

5 Replies

Many thanks to SWLing Post contributor, Stan Horzepa (WA1LOU), who shares the following post originally published on his blog:

I bought a first-production-run C.Crane CCRadio3 AM/FM/WX/2-Meter receiver after reading K4SWL’s preview on his blog, The SWLing Post.

I already own the highly-regarded C.Crane CCRadio 2E Enhanced, which I reviewed here five years ago, so I decided to compare the two on the AM, FM and weather bands. Before comparing the two radios, I recalibrated the antennas of both radios, then with the radios sitting side-by-side, I tuned each radio through each band channel-by-channel

My findings follow.

On the AM band, the 3 captured signals faster than the 2E.

Occasionally, signals were stronger on the 3 than on the 2E and vice versa, but most of the time, the signal strength was the same on both radios. So I conclude that the sensitivity of the two radios are the same.

I tried the 3’s new Bluetooth function before reading the manual. I just pressed the Bluetooth button to access the Bluetooth mode and my iPhone and MacBook Pro found the 3 without pressing the radio’s Pair button, as instructed by the manual.

In conclusion, the differences I found between the 3 and the 2E were (1) the 3’s ability to capture AM signals was noticeably faster than the 2E and (2) the addition of the Bluetooth function in the 3.

I did not notice any other performance enhancements. I was hoping that the 3 might be more sensitive than the 2E (not that the 2E is not sensitive — it certainly is!), but I’d say that the 3 and 2E Enhanced are about equal sensitivity-wise, as well as selectivity-wise.

Believe it or not moments… During the comparison, I was very surprised that on two occasions (on 820 and 1500 kHz), each radio simultaneously received different stations while tuned to the same frequency!

Click here to check out Stan’s blog.

Thank you for sharing your thoughts after comparing the two receivers, Stan! I think this supports the idea that if one owns the CCRadio2E and doesn’t need Bluetooth functionality, there’s no real reason to upgrade to the CCRadio3. With that said, and as I think you found Stan, the Bluetooth functionality in the CCRadio3 is excellent. It must be one of the best Bluetooth receivers I’ve tested and as you point out, it’s also very easy to engage and use.

Thanks again!

Spread the radio love

Inside the HanRongDa HDR-737 wide frequency receiver

7 Replies

Many thanks to SWLing Post contributor, Nad, who writes:

I bought an HRD-737 a few weeks ago off AliExpress. Was going to write a review but now feel there is no point because it has so many major and minor problems beyond those already reported.

Decided to take mine apart. The photo is attached.

Click to enlarge.

It appears to me that the HRD-737 could be the first attempt at an SDR-based pocket sized receiver. Wondering if you or someone the experts at SWLing Post can offer any insight in this regard. Identifying marks on the ICs have been removed. The metal can in the middle could be a wideband programable oscillator of some kind?

Thank you for sharing, Nad!

Readers: can you shed some light on the HDR-737 receiver design based on this internal photo?  Please comment!

Spread the radio love

A new portable DRM/DAB receiver by Starwaves GmbH

32 Replies

Many thanks to SWLing Post contributor, Mangosman, who notes:

There is a new digital receiver available. It can receive DRM in all bands from low, medium, high and band 1 & 2 VHF, as well as DAB+ and analog AM and FM.

It cannot receive HD radio because Xpedia charge licensing fees on every receiver and the market is restricted to USA and Mexico.

https://www.alibaba.com/product-detail/DRM-DAB-Digital-Radio-Receiver_11547499.html

Thank you for the tip!  It appears this receiver is a product of  STARWAVES GmbH, Germany/Switzerland, although I assume it’s manufactured in China based on the bulk order costs.

I’ve reached out to the manufacturer for more details as there are few specifics and no specifications on the Alibaba page.

There are also no details about this radio on the Starwaves website.

If/when we receive more information about this radio, we’ll share it here on the SWLing Post. Stay tuned!

Do you enjoy the SWLing Post?

Please consider supporting us via Patreon or our Coffee Fund!

Your support makes articles like this one possible. Thank you!

Spread the radio love

Any reviews of the HanRongDa HRD-737 portable radio?

17 Replies

Many thanks to SWLing Post contributor, Jamie Anderson (KM4WYO), who writes:

I have been browsing around eBay too much and was trying to put together a do-it-all radio for camping/backpacking that is small.

It is hard to find SW/broadcast/weather/air band together (for good reason, of course). I did run across this radio that is interesting: the HRD-737 which retails around $40.

  • Internal 700mah 3.7v lithium, with 5v usb charge
  • Air 118-138 MHz
  • FM 87.5 – 108 MHz
  • AM 520-1720 kHz
  • CB 25-28 MHz
  • SW 2-30 MHz in 5 kHz steps
  • VHF narrow/wide FM – 30-223 MHz (10,6,2,220)

I’m not sure if it would pick up NOAA stations as I think they have a slightly different FM bandwidth.

It seems interesting for a do it all point of view, you could possibly monitor ham repeaters on 2 meters, just a little too short of frequency coverage for 220.

Click here to view the HDR-737 on eBay.

Have you seen one of these or something similar in your reviews?

I have never used the HDR-737, but thanks for bringing it to our attention, Jamie!

I should think, assuming the stated VHF frequency coverage is correct, that you should be able to hear weather radio on this receiver. NOAA weather frequencies are on 162.400, 162.425, 162.450, 162.475, 162.500, 162.525, and 162.550 MHz.

The manufacturer isn’t clear about the frequency steps on VHF however–it’s possible tuning increments could be too coarse to get a good lock on the station. That specification is omitted altogether even though every other band has stated frequency steps.

I should mention that the original C. Crane CC Skywave meets all of your specifications save the ability to potentially tune in the 2M ham radio band.

Post readers: Is anyone familiar with the HanRongDa HRD-737?  Please comment!

Spread the radio love

The NSA’s Software Defined Radio application “RedHawk” is now open source

6 Replies

Many thanks to SWLing Post contributor, Andrew, who writes:

Not kidding, a friend told me that NSA released a bunch of software to open source, the main list being here:

https://code.nsa.gov/

While looking at the list of projects on that page, halfway down the page, I found a project called “RedHawk” which is described as:

“A software-defined radio (SDR) framework designed to support the development, deployment, and management of real-time software radio applications.”

Now, being curious I opened the github link:

https://github.com/redhawksdr

[It] contains quite a number of subprojects, modules and other stuff, then I checked the main “RedHawk” project:

https://github.com/RedhawkSDR/redhawk

Here’s the documentation:

https://redhawksdr.github.io/Documentation/index.html

It seems really interesting; apparently it allows to define a wealth of processing stages (e.g. filters, converters…) and connect them to process signals coming from an SDR; I think it may be a very interesting and useful tool to fiddle/experiment with SDR receivers, if I’m not wrong it may allow to push an SDR to the limits, improving its performance, and may also be useful to write SDR software!

Fascinating! Thank you for the tip, Andrew!

Post Readers: It appears this project has been in the public domain for a little while. Please comment if you’ve tried implementing RedHawk in your SDR system!

Do you enjoy the SWLing Post?

Please consider supporting us via Patreon or our Coffee Fund!

Your support makes articles like this one possible. Thank you!

Spread the radio love