Category Archives: Shortwave Radio

A new portable DRM/DAB receiver by Starwaves GmbH

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!

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Mark your calendars: WWV Special Event Amateur Station Sep 28 – Oct 2, 2019

WWV building in Fort Collins, Colorado (photo courtesy: NIST)

(Source: Dave Swartz, W0DAS)

NCARC WWV Committee
Fort Collins, Colorado:
FOR IMMEDIATE RELEASE – JANUARY 11, 2019

WWV Centennial Celebration and Special Event Amateur Station September 28 – October 2, 2019

Northern Colorado Amateur Radio Club Logo NCARCThe Northern Colorado Amateur Radio Club (NCARC) will operate a special event amateur radio station in conjunction with the WWV Centennial Celebration, a tribute to radio station WWV, the oldest continuously broadcasting radio station in the world, as it turns 100 years old on October 1, 2019.

Operating from alongside the historic and scientific long wave (WWVB) and short wave (WWV) radio stations, the NCARC effort will use 4 simultaneous operations on a variety of amateur shortwave bands. The goal is to contact as many amateur radio stations in the world as possible during the 5-day operating period, September 28 through October 2, 2019, using a variety of operating modes (Morse code, voice, and data).

The National Institute of Standards and Technology, NIST, (US Dept of Commerce) lists the official 100t?h celebration on their events calendar from 8am until 7pm, October 1, 2019.

NCARC and NIST are working on coordinating the celebration and the special event amateur station. Because of the present shutdown of the US Government, planning and discussions have been put on hold. We look forward to the end of the shutdown, a future press release from NIST, and getting back to work on planning the celebration of this historic event.
NCARC deemed it necessary to issue this press release on our own due to the uncertainty of the length of the shutdown and the need to get this event, at least the special event station, on everyone’s planning calendar as soon as possible.

The exceptional challenge of operating this station will require the help of amateurs and radio clubs throughout Colorado, the surrounding states, and from across the country. Amateurs who are interested in traveling to Fort Collins this fall and taking part in the operations are encouraged to apply starting February 15, 2019. Please see the Operators page on the website.

For more information, please visit the WWV Centennial Celebration website,? ?WWV100.com?.

M.I.T. Radio Society: Public lectures covering all aspects of radio

Many thanks to SWLing Post contributor, Jennifer Waits, who notes that The Massachusetts Institute of Technology Radio Society (W1MX) and the Department of Electrical Engineering and Computer Science (EECS) are presenting a series of radio-related lectures covering a wide array of topics, “from the design of modern wireless communications systems and 5G, to software defined radio and satellite communications, to shortwave radio propagation, space weather, Radio Astronomy and more.”

The public lectures are announced here: http://student.mit.edu/iap/ns313.html 

All lectures are streamed live and archived on YouTube.

Jennifer notes that one of the most recent lectures focuses on shortwave radio and propagation:

Click here to watch on YouTube.

Click here to view the entire lecture playlist.

Thanks for the tip, Jennifer!

Tivdio V-115/Audiomax  SRW-710S: Keith approves of everything save battery performance

Many thanks to SWLing Post contributor, Keith Stephens, who writes:

Regarding the Audiomax  SRW-710S  radio.

I was very pleasantly surprised at more than one aspect of this radio.  First, it sounds like something with a much larger speaker.  It has the base capability of at least a 6″ speaker.  My favorite FM music station comes from a mountaintop repeater over 70 miles away.  The 710S is one of two radios I have tried through the years that brings it in clear and clean.  The other is a much bigger more expensive radio.  And of course, the voice quality of the local AM talk shows is excellent.  I lost my instruction booklet (as usual) but I do want to record the FM station for times when I am out of range.

It is a pity that I have to tell of a bad shortcoming on this wonderful radio.  Alas, I couldn’t believe it the first time it died at the end of three hours.  I thought I had a bad battery, but a fully charged new battery only lasts 3 hours!  I would pay twice the price for the same radio if it had a better battery life.  Please let me know if there is a better battery or the same radio with a larger battery.

Thanks for your mini review, Keith! Admittedly, I’ve never tested the battery performance of this set because I typically use it for short (1 hour) recording sessions.

Click here to read other reviews of the Audiomax  SRW-710S/Tivdio V-115.

Retailers:

Radiwow offers deep discounts for R-108 unbiased reviews

Many thanks to SWLing Post contributor, The Professor, who notes that Radiwow is offering free and half-price units to consumers willing to review their R-108 receiver. All of the details are on the Radiwow R-108 product page at AliExpress.

Here’s a copy of the statement:

Dear friends

Are you still struggling to find a cost-effective radio? Now the FREE  opportunity is coming!

Recently ,our store have launched a RADIWOW® R-108 Radio which has  great sound quality, selectivity and sensitivity .R-108 Radio is a good world receiver with great FM Stereo/LW/SW/MW /AIR/DSP. It will start selling on January 30, 2019.You deserve it!

We are looking for 20 people from Japan, the United States, Canada, the United Kingdom, Germany, Spain, Italy, France to test and write an unbiased and honest review for our latest radio.

In addition, we need friends from Spain, Italy, France to help us translate R-108 English user manual into Spanish, Italian and French.

In all top three users who apply for the test will enjoy the radio for free, and the 3-20 will enjoy it at half price. Please indicate in the subject when contacting us: your country; product model; leave review or translate user manual.

Click here to read this statement on the Radiwow R-108 product page.

Please comment if you’ve successfully ordered a unit under this program. I’m currently evaluating the R-108 here at SWLing Post HQ.


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Tivdio V-115: Simple modification to abate internally-generated noise

Many thanks to SWLing Post contributor, Marc Thomas, who shares a link to this site which describes modifications to eliminate the Tivdio V-115’s internal noise.

In a nutshell, the author made two small mods:

  • Decouple the power/battery with an electrolytic capacitor of around 10uF soldered to the battery connector inside the radio (see photo above)
  • The author also grounded the speaker, but didn’t test to see if this alone had any positive impact

I could not find contact details for the author of this mod, so I hope they don’t mind the fact I shared it here on the SWLing Post.

Note that the Tivdio V-115 is also known as the Audiomax SRW-710S and Kaimeda SRW-710S (and likely rebadged as a number of other models).

Click here to read reviews of this radio.

Retailers:

Bedside radio: Jeff ousts the Sangean WR-2 in favor of the Grundig G4000A

(Source: The Herculodge)

Our friend, Jeff McMahon, over at the Herculodge blog has just replaced his bedside radio–he writes:

Inexplicably, the Sangean WR-2 wasn’t getting 89.3 KPCC without static, distortion, and bleed-in from another station, over the last few weeks, even with the wire FM antenna attached to the back of it. Who knows why FM reception is subject to variation. It could be the weather.

In any event, I put the Sangean WR-2 in my daughter’s room (she gets her pop station MyFM 104.3 very easily, with the pigtail antenna on the back) and put the 13-year-old Grundig G4000A by my bedside. With the telescopic FM antenna alone, KPCC has a weak signal, evidenced by the Grundig’s reception meter, but when I put the wire SW antenna to the side SW antenna port, the reception is strong and clear.

Over the years, I’ve had many portables, including the Degen 1103, and some old Tecsun models from about 10 years ago. They all suffered from weak tin speakers. Not so with the Grundig G4000A. The speaker sound is very pleasing.[…]

Continue reading at the Herculodge.