Yearly Archives: 2013

Shortwave Radio Recordings: The Mighty KBC

"Dad, that's The Mighty KBC! Turn it up!"

“Dad, that’s The Mighty KBC! Turn it up!”

Sunday at 00:00-02:00 UTC, I tuned to 7,375 kHz to listen to The Mighty KBC. This was the first time I tuned to their winter frequency this season and wasn’t sure how strong their signal would be on a relatively noisy night on the bands.

KBC’s signal was blowtorch strength into North America. It could have been easily received on even the most simple of portable radios.

As we’ve come to expect, the Mighty KBC’s Giant Jukebox of music has a lot of rock-n-roll and Euro-pop variety, spanning the decades; DJ, “Uncle Eric” knows how to entertain and spin the tunes! Uncle Eric includes Kim Elliott’s digital text modes in this broadcast–if you missed the live broadcast, you can even decode the messages from the recording below.

Click here to download the recording as an MP3, or simply listen via the embedded player below. Enjoy:

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Shortwave Radio Recordings: Radio Progreso

Havana, Cuba (Photo: Wikimedia)

Earlier this week, I noted that Cuban medium wave station, Radio Progreso, was to begin broadcasting on 4,765 kHz shortwave, beginning October 1st at 00:30 UTC.

I listened between 00:30 and 2:30 UTC on Oct 1st, but heard nothing other than the weak carrier from (possibly) Radio Emissora De Educao Rural. However, the following evening at 01:00 UTC (October 2nd) I did hear a strong signal from Radio Progreso.

For your listening pleasure: the recording I made of Radio Progreso on October 2, 2013, starting around 01:00 UTC. Click here to download the recording as an MP3 or simply listen via the embedded player below:

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Shutdown: Wake Island DXpedition on ice

WakeIslandI’ve been somewhat amazed at the number of ways the US government shutdown has had an impact upon radio.

Many ham radio operators are aware of the upcoming Wake Island DXpedition commemorating the 70th anniversary of the World War II massacre; everything had been arranged in advance, including payment for the flight to Wake Island. But as the last leg of the operators’ trip to Wake Island relies upon a coordinated venture with the US Air Force, just as many USAF employees suddenly find themselves on furlough, the trip has been placed on hold until the shutdown ends. This is particularly unfortunate in that DXpeditions are pricey ventures; the total cost of the Wake Island DXpedition cost each radio operator $9,000 out-of-pocket, for a grand total of $140,000 US.

I received the following message from the DXpedition on Wednesday:

To All:

Those of us on the Wake Atoll DXpedition team were scheduled to depart today for Hawaii, on our way to Wake Island Friday.

However, because of the U.S. Government shutdown yesterday, the DXpedition has been delayed. The USAF is preoccupied with sequestration activities and many staff personnel have been furloughed.

We are hoping this is a short-term delay, as we continue to pursue the approval process. As soon as a revised schedule is finalized, new dates will be posted on the Wake DXpedition website.

http://wake2013.org/

In the meantime, thanks to all for your continued support.

73,
John Miller, K6MM

Yesterday, the DXpedition actually caught the attention of the Reuters news service:

(Source: Reuters)

For anyone questioning the reach of the federal government shutdown, consider Wake Island.

Not much more than military-plane refueling and classified operations occur on the unincorporated U.S. territory, a coral atoll located between Hawaii and Guam, about 6,700 miles (10,780 kilometers) from the legislative standoff in Washington.

That was about to change this week with the arrival of a dozen ham-radio operators who thought they’d won approval for a two-week commemoration of the 70th anniversary of the World War II massacre of almost 100 U.S. civilian contractors on Wake Island by the Japanese on Oct. 7, 1943.

Instead, after months of preparation, the trip is on ice because of a paperwork delay the group attributes to the partial federal shutdown, which started Oct. 1 as Republicans and Democrats failed to agree on a stopgap spending measure.

“They made it sound like it was just unfortunate timing,” said Craig Thompson, 61, one of the expedition’s leaders. “At the level that it was at, they were focused on what they had to do to shut down government, to prepare their budgets and deal with all of the other changes that were going on.”

The operation was of special interest to tens of thousands of ham operators inside and outside the U.S. The hobbyists collect contacts with all countries and islands in a practice known as DXing. Because Wake Island hasn’t had a major radio expedition since 1998, there’s great demand for its confirmation of a contact there.

All the paperwork was in place, except for final travel orders that needed one last Pentagon signature, said Thompson, an electronics company owner from central Illinois who is a veteran of radio expeditions to other remote locales, including Midway Island and Swains Island in thePacific Ocean.

[…]The U.S. Air Force manages Wake and access is restricted. The group was to fly commercial on Oct. 2 to Honolulu, where they would have then boarded a military flight today to Wake.

The decision to cancel was made late on Oct. 1 after determining the group probably wouldn’t get final approval in time to catch the second flight, flown once every two weeks.

[Continue reading the full article on Reuters…]

Follow this, and other radio-related stories around the US government shutdown, by following the tag shutdown.

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Shortwave Radio Recordings: Radio Australia

CRI-bandwidthLike most Friday mornings, yesterday at 11:00 UTC, I tuned to 9,580 kHz to listen to Radio Australia news and ABC National’s technology program Download This Show.

While the signal out of Shepparton, Australia was as strong as ever, I heard adjacent interference from China Radio International.

Indeed, looking my WinRadio Excalibur‘s spectrum display (see image on right), you can see that CRI’s signal on 9,570 kHz was actually producing noise 15 kHz on either side of their AM carrier (for a total bandwidth of 30 kHz!). Radio Australia’s signal was much cleaner, sticking to their allotted 10 kHz bandwidth limit.

The recording of Radio Australia was still quite good, despite the interference, because I was able to run the Excalibur’s AM sync detector locked on the (less noisy) upper side band.

Click here to download the recording as an MP3, or simply listen via the embedded player below:

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Frank’s maritime radio suggestions

In response to my previous post, The Best Shortwave Receiver for Your Boat or Yacht, Frank (VK3JFH/VP8DNM) writes:

“I have all three of the portables mentioned, the Sony SW7600GR, the Sangean 909X, and the Tecsun PL-660. The latter is currently my portable of choice. Having just read this post re radios afloat I took the time to suck down a fax from Charleville, Queensland.

(Click to enlarge)

Frank’s Tecsun PL-660 and Macbook Pro decoding a weather fax with Cocoa Modem 2.0 (Click to enlarge)

Results shown..

This was with the Tecsun 660 attached directly to a (near) horizontal longwire at my home QTH, inserted directly into a Macbook Pro running CocoaModem 2.0 via the headphone socket on the Tecsun.
I have had similar results with the Sony and the Sangean

To all intents the result is as good as with my other radios ( K5000 etc.).

(Click to enlarge)

Screenshot of the weather fax image (Click to enlarge)

However if I was starting from scratch afloat I would get an Icom IC-718. Only $689.95 from Universal Radio. You may choose to simply use it as a receiver or as a Ham TX/RX. However it can also be ‘opened up’ with a simple diode snip to transmit on all the marine bands. Not strictly legal [nor is the IC-718 designed for those bands] but there are a lot of ‘opened’ 718s out there and in an emergency you can transmit a mayday on anything…. even a couple of jam tins and string although you may need a fair old length of string….

If you wish to transmit on your IC-718 you will need a tuner. I have an LDG IT-100 on mine.

Hooking up a consumer receiver to a marine antenna….? Simply make up a pigtail with a 3.5mm jack at one end and a BNC or SO -259 at the other.

Non-marine radios afloat…. ? I had an IC-735 aboard from Cyprus (1992) until Patagonia (2007). Since 2007 I have had an IC-706Mk2G afloat…. no problem with either one.”

Many thanks for your input, Frank!

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All India Radio publishes a tender for 800 DRM receivers

drmlogoThe DRM Consortium has posted an All India Radio (AIR) tender for 800 DRM AM/FM/Shortwave receivers.

AIR is seeking a DRM receiver with a feature set that would include:

  • DRM decoding on both shortwave and medium wave (AM broadcast) bands
  • 1 kHz tuning increments on DRM bands (with DRM auto lock)
  • Stereo speakers and headphone jack
  • Four line mono/color digital display
  • Built-in stereo recording of DRM broadcasts–including a scheduling feature
  • Upgradable firmware
  • Built-in rechargeable battery pack with 6 hour playback time

There are more specs/features, of course–click here or here to download a scanned copy of the actual AIR tender.

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Document radio interference via the Ofcom Spectrum Management Survey

PLT devices can produce broad spectrum noise on the shortwave/amateur radio HF bands

PLT devices can produce broad spectrum noise on the shortwave/amateur radio HF bands

Nige (G7CNF) recently contacted me regarding a survey he has created to help document and fight radio interference from power line technology and other sources.

If you live in the UK and can create an Ofcom case reference number, please consider contributing.

Nige writes:

I have created a new forum (or rather relaunched my old one but with some rebranding) […] dedicated to discussing and curing [radio] interference.

I was contacted recently on one of my PLT YT videos by a SWL who was suffering PLT interference and it reminded me that since 2010, SWLs have had no ‘right to complain’ in the UK after Ofcom delegated domestic broadcast interference to the BBC. Frankly I think that is unacceptable and I want to address that imbalance.

I have created a new survey, the ‘Ofcom Spectrum Management Survey.’ Unlike the previous incarnation which was aimed at radio amateurs alone, this time I have opened it up to all radio users, regardless of type; the only qualification needed to fill this survey is an Ofcom case reference number. […]

Like the RSGB noise floor monitoring campaign which has just been stepped up to incorporate the use of the Cross-Country-Wireless Sentinel SDR noise monitor, I believe that my Ofcom survey will offer insights into the regulator’s performance over over time – and highlight its deficiencies by placing Ofcom spectrum abuse cases in the public domain.

The survey can be found here:
http://interference.org.uk/survey/index.php/955793

The forum, here:
http://interference.org.uk

Many thanks for your time and the best of luck with the hobby.

Nige.G7CNF
http://interference.org.uk

Nige, thank you for organizing this survey and campaign–best of luck moving forward!

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