Monthly Archives: September 2017

A photo tour of the 2017 Shelby Hamfest

My Labor Day weekend was free of travel again this year, so I was able to make another pilgrimage to the Shelby (North Carolina) hamfest with my good buddy, Vlado (N3CZ).

The Shelby Hamfest–referred to, locally, as “The Grand-Daddy of them All”–has long been regarded as one of the largest hamfests in the southeast US. This is the third year I’ve made a concerted effort to publish a photo tour of the event.

I sold both my Hammarlund SP-600 and Hallicrafters SX-99.

Like last year, we set up a table in the flea market to sell a few items along with other good friends from the NCDXCC. In other words, once again, I was in selling mode, not buying mode, as I need to downsize some of my collection and use the money to offset costs of review radios, and some of the conferences I’m attending this year (including the Radio Preservation Task Force Meeting in Washington DC on behalf of our Shortwave Radio Audio Archive).

Overall turnout was a little less than last year, I believe. No doubt, this was due to the possibility of rain that never materialized. By lunch time the sun was out and the foot traffic increased.

Shelby Photo Gallery

Click on the thumbnails below to enlarge or comment on the photos:

Note that if you’re viewing this post via our email newsletter, the embedded gallery (above) might not be viewable. Click here to view via web browser.

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SDRs processing Fast Radio Bursts from distant universe

The Green Bank Telescope (Source: NRAO)

Many thanks to SWLing Post contributor, Ed, who shares a link to the following article at Breakthrough Initiatives:

Green Bank Telescope observations of a dwarf galaxy three billion light years away reveal 15 bursts of radio emission. This is the first time bursts from this source have been seen at these frequencies.

San Francisco – August 29, 2017 – Breakthrough Listen – the initiative to find signs of intelligent life in the universe – has detected 15 fast radio bursts emanating from the mysterious “repeater” FRB 121102. Fast radio bursts, or FRBs, are brief, bright pulses of radio emission from distant galaxies. First detected with the Parkes Telescope in Australia, FRBs have now been seen by several radio telescopes around the world. FRB 121102 was discovered in 2012, on November 2nd (hence its name). In 2015, it was the first FRB seen to repeat, ruling out theories of the bursts’ origins that involved the catastrophic destruction of the progenitor (at least in this particular instance). And in 2016, the repeater was the first FRB to have its location pinpointed with sufficient precision to allow its host galaxy to be identified. It resides in a dwarf galaxy about 3 billion light years away from Earth.

Attempts to understand the mechanism that generates FRBs have made this galaxy a target of ongoing monitoring campaigns by instruments across the globe. Possible explanations for FRBs range from outbursts from rotating neutron stars with extremely strong magnetic fields, to more speculative ideas that they are directed energy sources used by extraterrestrial civilizations to power spacecraft.

Breakthrough Listen is a global astronomical initiative launched in 2015 by Internet investor and philanthropist Yuri Milner and cosmologist Stephen Hawking. As part of their program to observe nearby stars and galaxies for signatures of extraterrestrial technology, the Listen science team at UC Berkeley added FRB 121102 to their list of targets. In the early hours of Saturday, August 26, UC Berkeley Postdoctoral Researcher Dr. Vishal Gajjar observed the location of FRB 121102 using the Breakthrough Listen backend instrument at the Green Bank Telescope in West Virginia. The instrument accumulated 400 TB of data on the object over a five hour observation, observing the entire 4 to 8 GHz frequency band.[…]

Analysis by Dr. Gajjar and the Listen team revealed 15 new pulses from FRB 121102. As well as confirming that the source is in a newly active state, the high resolution of the data obtained by the Listen instrument will allow measurement of the properties of these mysterious bursts at a higher precision than ever possible before.

The observations also show for the first time that FRBs emit at higher frequencies (with the brightest emission occurring at around 7 GHz) than previously observed. The extraordinary capabilities of the Listen backend, which is able to record several gigahertz of bandwidth at a time, split into billions of individual channels, enable a new view of the frequency spectrum of FRBs, and should shed additional light on the processes giving rise to FRB emission.
When the recently-detected pulses left their host galaxy our entire Solar System was just 2 billion years old. […]

The new results are reported as an Astronomer’s Telegram at www.astronomerstelegram.org/?read=10675 and will be described in further detail in an upcoming scientific journal article.

Breakthrough Listen is a scientific program in search for evidence of technological life in the Universe. It aims to survey one million nearby stars, the entire galactic plane and 100 nearby galaxies at a wide range of radio and optical bands.[…]

The linked animation shows 14 of the 15 detected bursts in succession, illustrating their dispersed spectrum and extreme variability. Capturing this diverse set of bursts was made possible by the broad bandwidth that can be processed by the Breakthrough Listen backend at the Green Bank Telescope:

https://storage.googleapis.com/frb121102/FRB121102_Cband_GB.gif

Click here to read the full article at Breakthrough Initiatives.

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North Korea now broadcasting in DRM

Many thanks to SWLing Post contributor, Mark Fahey, who writes:

A message to contacts in North Asia (Japan / Korea etc)…

North Korea is currently (right now 1430UTC) broadcasting in DRM format on 3560KHz. Listening to remote receivers in Japan I can see the signal is very strong in the Tokyo and Yokohama areas – I assume it will be strong in other parts of Japan as well. I have NOT been able to decode the DRM successfully, I have tried piping the audio to me here in my Australian location and demodulating it with a software DRM decoder – I just can’t get a lock on the signal. Do you have a DRM receiver – could you please try? If you do manage to receive the signal please don’t forget to record it!

I’m particularly interested to know if the transmissions are relays of KCBS Pyongyang, Pyongyang Pangsong or some other service. If you get a demodulated signal could you check to see if the program is parallel to KCBS Pyongyang on 2850KHz or Pyongyang Pangsong on 6400KHz.

I have a WinRadio Excalibur with DRM here in Australia, but the signal is very weak here – far too weak to lock.

Later, Mark shared the following video by “2010DFS” on YouTube:

Click here to view on YouTube.

Mark also notes that DRMNA.info is following this story very closely and suspects that the content server and or transmitter may be Chinese in origin:

NOTE: Same frequency and bitrate as the 2012 broadcasts so this may represent “Chinese assistance”. Can anyone confirm DRM equipment in Kujang?

20170902 Update: I have received anonymous details that indicate that at least the content server is of Chinese origin. Still no word on actual transmit location. Several other Japanese (and Terje in Japan) have successfully decoded these transmissions.

Click here to read full details at DRMNA.info.

Being a North Korean propaganda specialist, Mark added:

At the Freeman’s Reach monitoring station the bandwidth and microwave paths in are really being tested this afternoon with the full on activity.

All plans for the afternoon and evening now cancelled! YTN (South Korea) via Intelsat, KCTV Pyongyang via Thaicom, CNN International via Foxtel, CNN USA Domestic via Sling, Korean Central Radio and Pyongyang Pansong via KiwiSDRs – Busy!

All spectrum being captured, tonight the servers will be working hard, it will keep this place warm!

Post readers: please comment if you’re able to decode any of these North Korean DRM transmissions, and/or if you have further information about these DRM broadcasts from North Korea.

UPDATE: Mark has at least confirmed that the DRM signal is a relay of the KCBS Pyongyang national service (domestic) broadcast.

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Bob’s Backyard BBQ Radio Show: September 9, 2017 via WRMI

Bob's Backyard BBQ Radio Show

(Source: Bob’s Backyard BBQ Radio Show)

A bunch of radio professionals get together at a home in Southwest Connecticut for great fun and food ever couple of summers. On Saturday September 9th from 7pm to 10pm eastern (2300 Saturday to 0200 UTC Sunday) Bob’s Backyard BBQ Radio Show will take place, hosted by Bob Gilmore and a bevy of Northeast radio professional. They will be playing 60s 70s and 80s oldies/classic rock music while also giving out an email address to take comments/requests.

The programming will originate LIVE from a studio at Bob’s home and will be broadcast over WRMI Shortwave @7780 kHz.

This will be quite a good signal for the east coast of North America and also into Western Europe. This might have some decent coverage into the Midwestern US and Canada too, depending on conditions that night.

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Poynter: “Hurricane Harvey couldn’t silence Texas radio stations”

(Source: Poynter via Kim Elliott)

When Hurricane Harvey’s intensity became clear, employees at 93Q in Houston reserved hotel rooms across the street from the station. They were going to be very busy.

The on-air talent slept in the Cox-owned radio station for days, said Bill Tatar, digital content manager at Cox Media Group Houston. When they weren’t on-air, they did Facebook Live hits.

93Q is not normally an all-news station. But when emergencies hit, local radio stations can convey vital information: which streets are open, what shelters are taking people in and where communities can rally once the water begins to recede.

“Radio has been all over Harvey doing what radio does; immediately helping with updated information,” said Valerie Geller, a radio consultant. “Most stations dropped the format and went ‘all Harvey,’ taking calls, and across the country, stations are sending help and raising money.”[…]

Continue reading online at Poynter.

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KBS World Radio expands services and changes frequencies on September 4

(Source: KBS World Radio via Trevor R)

Hello listeners,

KBS World Radio English Service is carrying out a major frequency and time adjustment on shortwave as we expand our programming as of September 4.

First of all, we will start a new two-and-a-half hour broadcast on 9.770Mhz at 0800h UTC toward Southeast Asia. The one-hour broadcast on 9.515Mhz toward Europe will expand to two hours, and will start at 1500h UTC. Our broadcast toward India will be on 9.785Mhz instead of the current 9.880Mhz and expand to three hours, starting at 1400h UTC.
Unfortunately, as we add more hours and programs to several frequencies, we will no longer be broadcasting on 9.690Mhz, 6.095Mhz and 7.275Mhz.

For more information on the frequency adjustment and program schedule, please visit our website at world.kbs.co.kr.

Thank you!

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A review of the Red Oxx “Lil Roy”: an excellent radio kit bag

Yesterday, I posted some photos of the yet-to-be-released CC Skywave SSB and a number of readers had the same reaction as Frank (K4FMH):

“Who makes and sells your canvas bag? Inquiring minds want to know!”

Frank was referring to the bag in the background on many of the radio shots–and he wasn’t alone in his inquiry. I received a few email messages and inquiries on Facebook about this bag.

Be warned: I’m an avid bag and pack geek. If you find the topic boring, you should run away now!

The Red Oxx “Lil Roy”

The Lil Roy might look like a typical canvas bag.  But the Lil Roy isn’t made by the typical pack manufacturer–it’s made by Red Oxx Manufacturing in Billings, Montana, USA. Red Oxx gear isn’t just designed in Montana, it’s made in Montana. The two leaders,  Jim Markel and President Perry Jones, are military veterans and bring mil-spec quality to all of their products.

I love the design of Red Oxx bags–they’re not tactical, but they’re not really low-profile or urban either. Markel describes the design as:

“Tactical strength without looking like you’re going to war.”

I was first introduced to Red Oxx gear in 2012 when I traveled to a meeting in Denver with my good friend Ed Harris (who is an SWLing Post reader).

Even though Ed and I had traveled together in Belize and had known each other for quite a while, I never realized he was a one-bag traveler like me. Once the topic came up, we proceeded to talk about our main travel bags. Ed showed me his Air Boss by Red Oxx.

The Red Oxx Air Boss.

I instantly fell in love with the overall quality and the bold Red Oxx design.

All Red Oxx bags are manufactured to the company’s high standards, including the Lil Roy

Four portable radios, an antenna reel and earphones all easily fit into the Lil Roy with room to spare.

Though it looks like a canvas bag, the Lil Roy is made of 1000 weight CORDURA nylon. Red Oxx uses super strong UV resistant threads in the stitching and into every seam. Each stress point is box stitched.

Red Oxx uses large, pricey #10 YKK VISLON zippers on all of their bags. They slide beautifully and if you don’t zip up the bag completely, the zippers won’t slide back open–they essentially lock into place. They’re even field-repairable.

Inside the Lil Roy you’ll find two “stiff mesh” pockets on each inside wall with Red Oxx Mil-Spec snaps to keep things contained.

FYI: If you ever want to check the quality of a bag or pack, flip it inside out and look for frays, bad stitching and incomplete seams. Cheap bags are loaded with them–you won’t find one thread out of place on a Red Oxx bag.

While the Lil Roy is a small bag, I’ve found that it holds a lot of stuff. This month, I’ve had no less than four radios to beta test and review. I found that the Lil Roy can hold all of my portables and accessories, making it easy to grab the whole lot and take them to the field for testing.

While in Canada this summer, I had to do all of my radio listening and testing in the field. I was able to pack my portable radio and my recording gear into the Lil Roy with room to spare.

Listening to the 2017 BBC Antarctic Midwinter Broadcast from the back of my vehicle in Saint-Anne-de-Beaupré, Québec, Canada.

I’ve also packed my CommRadio CR-1a, NASA PA-30 antenna and all assorted cables for a little weekend travel and radio fun. The Lil Roy easily accommodated everything. In the photo below, I simply placed the CR-1a inside (on top of the CC Skywave and CC Skywave SSB) to show how much room there is to spare:

So are there any negatives? Perhaps one: the Lil Roy was never designed to carry radio equipment, so there’s no padding inside.

Indeed, I believe Red Oxx initially designed Lil Roy for someone who wanted a bag to hold their car chains. Of course, most customers use the Lil Roy as an electronics organizer–something to hold tablets, Kindles, cables, etc. Some even use it as a packing cube.

Since there’s no padding in the bag, I’m selective about what I put inside and how I pack it. Most of my portables have soft cases that protect them anyway. When I put something like the CommRadio CR-1a inside, I enclose the radio in a soft padded sack. Even though the sack makes the CR-1a bulkier, the Lil Roy can still easily accommodate it.

In general, Red Oxx gear is considered pricey by most standards. After all, you’re purchasing products wholly designed and made in the United States, so US wages are baked into that price. On top of that, Red Oxx backs all of their stuff with what they call a “No Bull” no question’s asked Lifetime Warranty. Because of this warranty, Red Oxx gear holds its value amazingly well. The warranty still holds even if you purchase the bag used.

I also believe when you’re purchasing from Red Oxx, you’re supporting a good local company that does one thing and does it very well.

The Lil Roy retails for $35 US. I think it’s a fantastic value for a simple, rugged bag that can be used in a variety of applications. The longer I’ve had it, the more uses I’ve found.

I’m considering purchasing the Red Oxx Mini Boss or possibly Skytrain in the next few months to replace my Timbuk2 Small Wingman.

Told you…I’m a pack geek! Don’t say I didn’t warn you! 🙂

Click here to check out the Lil Roy at Red Oxx Manufacturing.

Post readers: Red Oxx is one of three quality pack manufacturers I support–Tom Bihn and Spec Ops Brand are two others. Do you have any favorites?  Please comment!

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