Author Archives: Thomas

Can you help Rick ID this mystery digital signal?

Photo from Rick’s location in Vernon, BC.

Many thanks to SWLing Post reader, Rick Slobodian, who writes to request help with the following:

I was on the beach at our lake, [where I was listening to my] Tecsun PL-606 receiver.

[On Friday, August 19, 2016 at 1800 UTC, I noted a] “beeper”: beeps at Hz repetition rate , does not appear to be data, it beeps for about a minute then there is a short data burst then beeping again for a minute or two.

This went on for over an hour.

Location of Vernon, British Columbia, Canada (click to enlarge).

[The beeping covered] all frequencies between 13400-13800 kHz. [Then on August 20, it started at] start 1745 UTC and was no longer on 3400-13800 but now on
all frequencies between 12120 -12250.

What is it? [Take a listen:]
Audio Player
00:00
00:00
00:00
Use Up/Down Arrow keys to increase or decrease volume.

Click here to download a recording of the beeping.

My ham radio friend says there are a network of stations that send out pings that everyone in the group transmits and everyone receives. The signal strength and phase of the rx signal is correlated at each receiver station, to direction find some unknown station.

Was there such a thing during the cold war, and is it still around? What is this system and where can I find out more about it?

Thanks for your inquiry, Rick. This is outside the scope of what I understand on the HF bands, so I hope SWLing Post readers can chime in and offer suggestions.

Please comment if you can help Rick ID this transmission!

Dan offers services to digitally preserve off-air recordings on legacy formats

3 Replies

Many thanks to SWLing Post contributor, Dan Robinson, who writes:

Some years ago, I urged those of us survivors in the shortwave listening community to transfer any reel or cassette tapes to digital format. In recent years we have lost many top DX’ers to illness. Collections of recordings have unfortunately also been lost because family members are not able to preserve them or have no interest in doing so.

If any SWLing Post readers have such recordings, I am able to transfer them from/to to any format — including MD, SONY Microcassette (both of these are obviously still legacy formats but many still use MD for example), and straight to solid state media such as SD, MicroSD, etc

While I realize that most people do have the knowledge and capabilities to transfer old recordings, I know many lack the time and patience to do so. So I am offering my services here, for reasonable fees to compensate for time invested. You can reach me at: dxace1@gmail.com

Those who wish to simply donate recordings can send them to me (please get in touch first). Anyone who does wish to have their recording collection(s) transferred in full and to have original tapes or cassettes returned, I ask to be compensated for postage costs. If you wish to provide solid state media for the transfers that is fine, but please make sure that thumb drives or memory cards are of sufficient size. Otherwise I will obtain memory cards/sticks and add this to the cost.

In recent years I have transferred recordings of about a dozen DX’ers who have passed, and for a few who left the hobby. All of these recordings are valuable as they represent snapshots of the SW broadcasting era and of history — they should be preserved.

I can certainly vouch for Dan and his integrity, so if you would like to have your recordings transferred, he’s the guy to do it. Thanks, Dan!

The Gospell GR-216: DRM Consortium announces new DRM portable

14 Replies

(Source: DRM Consortium via Alokesh Gupta)

Gospell announces the imminent release of GR-216 DRM/AM/FM digital radio

Chengdu, China, September 05, 2016

Gospell, a leading supplier of pay TV system and equipment, satellite TV receiving products and microwave products, is delighted to announce the imminent release of GR-216 DRM/AM/FM digital radio, the first model in its Global Radio series range of tabletop radio. The product is designed to meet the demands of easy access to high quality information for cost-sensitive market at an affordable price.
GR-216 is equipped to receive DRM broadcast, as well as traditional FM with RDS and AM in medium wave band and shortwave band. Featuring a high performance DRM/AM/FM tuner, GR-216 provides noise-free reception of even the weakest stations. It supports the latest audio compression standard xHE-AAC and traditional HE-AAC as well as SBR and parametric stereo.
Besides the built-in whip antenna and ferrite bar antenna, dedicated AM/FM external antenna terminals with switch are located on the rear side of the radio, this will help those who live or work in a metal or concrete building and enjoy listening to a radio.
This unique radio will automatically turn itself on and initiate its emergency-tuning process when the Emergency Warning Broadcasting is engaged. The radio will enlarge its volume, flash the backlight, play siren sound and tune itself to the emergency program.
In addition to DRM program recording, AM/FM are also supported. Recorded program will be stored on the attached USB pen drive and can be played back on other devices such as a phone or a tablet. The GR216 also includes a scheduler which allows the user to schedule regular and unattended recordings for their favorite radio programme.
The built-in high-quality 3 inch full-range speaker with enlarged magnet provides outstanding audio performance and room filling sound. With the help of state-of-the-art audio processing technology, GR-216 includes separate bass, mid and treble tone controls and a graphics equalizer, users can tailor the sound to their taste. We’ve provided an output for headphones along with an audio output on the rear side of the radio for line recording or to connect GR-216 as a radio tuner to a home audio system.
As a tabletop radio, GR-216 features dual independent alarm clocks with sleep timer. The alarm clock allows for once, daily, weekday and weekend settings. The alarm can be adjusted to the volume you prefer with buzzer or radio stations.
All aspects of set-up, time and program information are clearly shown through an easy to read large LCD display with white backlight, which is paired with an intuitive rotary control, enabling quick and easy navigation. The display brightness and contrast can be adjusted for a comfortable night’s sleep.
“GR-216 is designed with the purpose and vision of providing easy access to high quality information, while utilizing a simple and intuitive user interface”. Said Haochun Liu, director of DRM development department, Gospell. “With the help of a carefully design and concrete quality, GR-216 will be a durable device that supports long-term use.”
For additional information, please visit www.gospell.com or contact Gospell sales at
haojq@gospell.com
About Gospell
Founded in 1993, Gospell Digital Technology Co Ltd (GOSPELL). is a private hi-tech enterprise with R&D, manufacturing, business consultancy and planning, trade, delivery, project implementation and after sales service, acting as a complete DTV and triple-play solution provider for Digital TV/OTT related projects. Headquartered in GOSPELL INDUSTRIAL PARK at Chenzhou, Hunan Province for CPE related production manufacturing, GOSPELL also has its office in Shenzhen for business/marketing management and administration, in Chengdu for R&D and headend/transmitter system production/debugging and Customer Service Center, and in 12 cities
in China as well as international offices in India, Africa and Mexico.
Gospell announces the imminent release of GR-216 DRM/AM/FM digital radio
Chengdu, China, September 05, 2016
Gospell, a leading supplier of pay TV system and equipment, satellite TV receiving products and microwave products, is delighted to announce the imminent release of GR-216 DRM/AM/FM digital radio, the first model in its Global Radio series
range of tabletop radio. The product is designed to meet the demands of easy access to high quality information for cost-sensitive market at an affordable price.
GR-216 is equipped to receive DRM broadcast, as well as traditional FM with RDS and AM in medium wave band and shortwave band. Featuring a high performance DRM/AM/FM tuner, GR-216 provides noise-free reception of even the weakest stations. It supports the latest audio compression standard xHE-AAC and traditional HE-AAC as well as SBR and parametric stereo.
Besides the built-in whip antenna and ferrite bar antenna, dedicated AM/FM external antenna terminals with switch are located on the rear side of the radio, this will help those who live or work in a metal or concrete building and enjoy listening to a radio.
This unique radio will automatically turn itself on and initiate its emergency-tuning process when the Emergency Warning Broadcasting is engaged. The radio will enlarge its volume, flash the backlight, play siren sound and tune itself to the emergency program.
In addition to DRM program recording, AM/FM are also supported. Recorded program will be stored on the attached USB pen drive and can be played back on other devices such as a phone or a tablet. The GR216 also includes a scheduler which allows the user to schedule regular and unattended recordings for their favorite radio program.
The built-in high-quality 3 inch full-range speaker with enlarged magnet provides outstanding audio performance and room filling sound. With the help of state-of-the-art audio processing technology, GR-216 includes separate bass, mid and treble tone controls and a graphics equalizer, users can tailor the sound to their taste. We’ve provided an output for headphones along with an audio output on the rear side of the radio for line recording or to connect GR-216 as a radio tuner to a home audio system.
As a tabletop radio, GR-216 features dual independent alarm clocks with sleep timer. The alarm clock allows for once, daily, weekday and weekend settings. The alarm can be adjusted to the volume you prefer with buzzer or radio stations.
All aspects of set-up, time and program information are clearly shown through an easy to read large LCD display with white backlight, which is paired with an intuitive rotary control, enabling quick and easy navigation. The display brightness and contrast can be adjusted for a comfortable night’s sleep.
“GR-216 is designed with the purpose and vision of providing easy access to high quality information, while utilizing a simple and intuitive user interface”. Said Haochun Liu, director of DRM development department, Gospell. “With the help of a carefully design and concrete quality, GR-216 will be a durable device that supports long-term use.”
For additional information, please visit www.gospell.com or contact Gospell sales at haojq@gospell.com
About Gospell
Founded in 1993, Gospell Digital Technology Co Ltd (GOSPELL). is a private hi-tech enterprise with R&D, manufacturing, business consultancy and planning, trade, delivery, project implementation and after sales service, acting as a complete DTV and triple-play solution provider for Digital TV/OTT related projects. Headquartered in GOSPELL INDUSTRIAL PARK at Chenzhou, Hunan Province for CPE related production manufacturing, GOSPELL also has its office in Shenzhen for business/marketing management and administration, in Chengdu for R&D and headend/transmitter system production/debugging and Customer Service Center, and in 12 cities
in China as well as international offices in India, Africa and Mexico.

Dave repairs a Sony ICF-6500W

6 Replies

Many thanks to SWLing Post contributor, Dave Zantow, who noticed my comments about the Sony ICF-6500W in the Shelby Hamfest photos and replies:

Speaking of the Sony ICF-6500W, I just brought one back from the dead. Have a few comments I just added to the bottom of my Sony page.

http://webpages.charter.net/n9ewo2/sony.html

The good old long band selector switches were extremely dirty in my case (it has 2). Not sure if the 6500W has the nasty “well known” bug that plagues ALL similar designed Panasonic sets from that era (RF- 2600 / 2800 / 2900 / 4800 / 4900 etc..) , where those switches TOTALLY fail in time. In the case of this Sony it was just the extremely dirty switches (at least for now).

Very cool, Dave. Honestly, I don’t think I had ever seen the ICF-6500W in person until Saturday. The seller had noted that the pots were “scratchy.” I suspect it needed some healthy, strategic doses of DeOxit!

Thanks for sharing your experience!

Labor Day Fun: A hamfest, an NPOTA activation–and a new Elecraft KX2 QRP kit

6 Replies

My station location on the trail near the Sandburg farm is indicated with the small grey marker (lower left quadrant).

I’ve enjoyed an especially “radio-active” Labor Day weekend. Here’s hoping you did, too.

On Saturday I headed out the door at 4:15 AM to meet my buddy Vlado (N3CZ), the inimitable radio doctor; we aimed our headlights through the morning mist to the Shelby Hamfest. Though it took quite a bit more coffee to keep me going, the hamfest was a load of fun. Check out the photos I posted yesterday.

On Sunday, I enjoyed some family time. Conveniently, our weekend travel took us near the Carl Sandburg Home in East Flat Rock, NC. I managed to carve out a little time for a quick–very quick– NPOTA activation of the site.

I realized I would only have about an hour, though, to find a suitable site, setup my radio kit, make at least the minimum of ten contacts, then pack up and clear out. Not an optimal amount of time, but certainly a fun challenge.

This was also a good excuse to try out my new Elecraft KX2 portable transceiver kit in the field. I haven’t even had the KX2 for a full week, but I quickly put together a field kit with the Elecraft as a centerpiece. If you’re curious, the kit consists of the following:

The Elecraft KX2, with internal battery and ATU options
An LnR Precision EFT Trail-Friendly antenna (purchased at the Dayton Hamvention)
An assortment of connectors and adapters
A six-foot coax cable
An Elecraft hand mic, borrowed from my KX3
A CW paddle (the KXPD2)
A clipboard, log sheets, and mechanical pencil
Fishing line and a weight (to hang the antenna)

All of this, save the fishing line and weight, was protected by the compact and perfectly portable LowePro ViewPoint CS 60 padded case, and fit it like a glove.

Let’s talk packs…

Those of you who know me, know that I’m a bit of a pack junkie. So I’m kind of picky about what I choose to hold my gear. There are a few manufacturers whose packs pass the test, and that make gear here in the States, like Spec-Ops Brand, Red Oxx, and Tom Bihn. Their packs are sometimes pricey, but they’re nearly bullet-proof and guaranteed for life. Timbuk2, based in San Francisco, is a more economical company with good gear, as well.

After purchasing my KX2, I searched but couldn’t find a suitable pack from my prefered manufacturers. I had remembered that at the Dayton Hamvention, Elecraft was actually selling two models of a LowePro pack that fit the KX2 exactly: the ViewPoint CS 40 and CS 60.

While I like to go as compact as possible, the CS 40 is just a bit too small to hold everything I like to carry to the field (antenna, paddle, and mic). The CS 60, on the other hand, could hold everything and has a fold out panel organizer to hold connectors.

I knew the CS 60 would fit the KX2, and I knew the CS 60 was padded to protect its contents. I also could see that the pack has excellent (and apparently genuine) ratings on Amazon, so I ordered one.

I’m pleased to report that the CS 60 is very well built indeed, and what’s more, accommodates everything I need. In fact, the only thing the CS 60 won’t hold is my reel of fishing line and 6′ coax cable (and yes, I daresay you could adapt both items to make them fit with a little effort).

I carried the CS 60 and reel in my trusty 20-year-old Dana Design lumbar pack:

There was room to spare inside for water bottle and snacks, and the whole package was very lightweight.

The Carl Sandburg Home

Carl-Sandburg-NS07

The Carl Sandburg site was fairly teeming with visitors, also enjoying the warm weather of the Labor Day weekend. After arriving and (fortunately) finding a parking spot, I hiked 20 minutes to one of the trails, where I was given permission to hang an antenna and operate.

Knowing that I needed to rejoin my family soon, I wasn’t too choosy about my site this time. I just needed to get on the air and work the minimum of ten contacts. In truth, I wasn’t sure if all of this was possible in the one hour I had available.

I setup on the right side of this trail, near one of the park benches.

I setup on the right side of this sunlit trail, near one of the park benches. It turned out to be a pretty good spot.

It took me perhaps ten minutes to set up, with a few brief asides to explain what I was doing to passing hikers.

Since I configured my little Elecraft KX2 with an internal battery and antenna tuner, I had no need for extra power cables, connectors, ATU and coax.

Elecraft-KX2-Clipboard-NPOTA

Yep, my entire station easily fit on the clipboard I was using to hold my log sheets. On my lap, the clipboard became my operating table.

As soon as I sat down in my folding chair, I turned on the KX2, set the frequency to 14,286 kHz, and pressed the ATU button which gave me a 1:1 match (since the EFT is resonant).

Thank you, voice keyer!

Next, I recorded my CQ call into the KX2’s built-in voice keyer by:

pressing and holding the MSG button,
assigning the voice message to “memory allocation 1” by pressing the PRE (1) button,
pressing XMIT to start the recording,
reading off my CQ call “CQ, CQ, CQ, this is K4SWL calling CQ for National Parks on the Air…”, and
pressing XMIT again to stop the recording.

Then I started calling CQ by simply pressing the MSG button and selecting my message stored in memory allocation 1 by pressing and holding the PRE (1) button.

By pressing and holding the PRE (1) button, I initiated a loop-playback of my CQ call where my KX2 would transmit my call from memory. Then I waited a few seconds to listen for any replies, and played it again. (In loop-playback mode, the KX2 will repeat my CQ call until I interrupt it by pressing a button or keying my mic.)

It’s a brilliant and easy function which saves my voice! By automatically calling CQ, it gives me an opportunity to answer questions from curious passersby, naturally fascinated by a guy sitting on the side of a trail, talking into a little box connected to a tree-branch suspended wire.

In the end, I didn’t even need to use the voice keyer that much. I was spotted on the DX cluster and within moments had a small pile-up of stations. Remarkably, I worked my minimum of ten stations within six minutes! Of course, I continued to call CQ until I worked everyone in the pile-up (including stations from California, Nebraska, Kansas, Texas and Mexico). Though I was running out of time quickly, I did switch to the less-active 40 meter band and called CQ. In a period of a few minutes, I worked two stations on forty: one from Alabama and one from Florida. Not bad for 10 watts of power!

Packing up

Normally I would have stayed on the air for at least an hour to give chasers an opportunity to work my station, but I was pleased that I’d managed to fit this activation into a very busy schedule. I was glad to have racked up so many stations, so quickly!

Taking down the antenna and packing up my portable station took all of eight minutes.

Without a doubt–once I had hiked to my operating site–this was my fastest deployment, activation, and pack-up to date. It was all possible because:

the KX2 has a built-in battery pack and ATU, and is so small it fits on my clipboard,
the EFT Trail-Friendly antenna is a breeze to install, take down and pack, and
the CS 60 pack organizes the radio and accessories so handily.

In short: I’m totally pumped by my new QRP field kit!

More radio adventures await…To the field!

AIR to recruit Balochi speakers with money saved from shortwave broadcasts

1 Reply

All India Radio (AIR) Headquarters in Dehli, India. Photo courtesy of Wikipedia.

Many thanks to SWLing Post contributor, Mike Barraclough, who shares the following link from The Sunday Guardian Live via Facebook:

At present, AIR has only two Balochi speaking people who have been helping with the daily one-hour programme transmitted to Balochistan. A senior AIR official, on the condition of anonymity, said, “There has always been a dearth of Balochi speaking people here. Even before Balochistan got attention in mainstream Indian media, we had been working to improve our Balochi show. For years, we had been writing to the Ministry of Home Affairs and Ministry of External Affairs to help us get some talented people from Balochistan who can work with us on improving content in our Balochi shows. ”

[…]”Since we are gradually switching from short-wave to a web-based service now, all our overseas shows in various languages are already starting to get more human resource. We have more funds to invest on quality of our programmes. Earlier, such funds were largely spent on the maintenance of short-wave machinery.”[…]

Click here to read the full story.

A photo tour of the 2016 Shelby Hamfest

13 Replies

IMG_20160903_093439923

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 buddies, Vlado (N3CZ), Dave (K4SV) and Phil (W9IXX). This year, all four of us brought things to sell in the flea market.

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. Last year, I posted photos from the hamfest and many of you sent notes of thanks for that.

We arrived very early yesterday, prior to the gates opening for general admission. We set up our tables and almost immediately had customers in front of us. This year, I was in selling mode, not buying mode, as I desperately 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.

IMG_20160903_073856879

IMG_20160903_105948682 IMG_20160903_110012119 IMG_20160903_105839762 IMG_20160903_105830408_HDR IMG_20160903_105823487 IMG_20160903_105525752_HDR IMG_20160903_105504050 IMG_20160903_105246401

The seller of this Grundig Satellit 500 only wanted $75–an exceptional bargain. I turned it on, though, and quickly discovered the LCD screen worked intermittently after having only been on for a few seconds. It was a little scuffed up too. Still–it produced great audio. IMG_20160903_104935512 IMG_20160903_104924284 IMG_20160903_104909396 IMG_20160903_104840559 IMG_20160903_104753772_HDR IMG_20160903_104732133 IMG_20160903_104706457_TOP IMG_20160903_104638547_HDR IMG_20160903_104633192 IMG_20160903_104355149 IMG_20160903_104343941_HDR IMG_20160903_104335454_HDR IMG_20160903_094424451 IMG_20160903_094413210 IMG_20160903_094350615_TOP IMG_20160903_094345045_HDR IMG_20160903_094337535 IMG_20160903_094247499_TOP IMG_20160903_094222390 IMG_20160903_094157726 IMG_20160903_094153301 IMG_20160903_094129115_TOP IMG_20160903_094125382 IMG_20160903_094121510 IMG_20160903_094112237 IMG_20160903_094108929_TOP IMG_20160903_094102125 IMG_20160903_094057690 IMG_20160903_094051265 IMG_20160903_094047198_HDR IMG_20160903_094043251

Someone had done a spectacular job restoring this Super-Pro. It would make a fine addition to any shack.
IMG_20160903_093830634 IMG_20160903_093616839_HDR IMG_20160903_093611913

The same seller who had the Grundig Satellit 500 was also selling this Sony ICF-6500W for $75. Other than scratchy pots, it seemed to work well. It was very tempting to purchase, but I passed in the end. IMG_20160903_093525866_TOP

He was selling this Panasonic for $150. I passed because I had a hunch it needed a little work. IMG_20160903_093512146 IMG_20160903_093503774 IMG_20160903_093301777 IMG_20160903_093259270 IMG_20160903_092333597_TOP IMG_20160903_091445596 IMG_20160903_090320282_HDR IMG_20160903_090221887 IMG_20160903_090216356 IMG_20160903_090213331_HDR

One of the finest R-274-As I’ve ever seen. Again: someone spent a great deal of time restoring this beauty. By the time I found it in the flea market, it had already been sold. Thank goodness! IMG_20160903_090137715 IMG_20160903_090122681 IMG_20160903_090115476_HDR IMG_20160903_090103868_HDR IMG_20160903_090059269 IMG_20160903_090048304_TOP IMG_20160903_090028432_TOP IMG_20160903_085937840_HDR IMG_20160903_085717679 IMG_20160903_085703210_TOP IMG_20160903_085642966 IMG_20160903_085627053 IMG_20160903_085624079 IMG_20160903_085617071

I must have spotted at least six or seven Hallicrafters SX-100s this year at Shelby.
IMG_20160903_085613902 IMG_20160903_085608569 IMG_20160903_085600920_HDR IMG_20160903_085533525_TOP IMG_20160903_085245321_HDR IMG_20160903_085240053_HDR

I managed to come home with only $40 worth of parts: connectors, cables, plugs and a 17 meter band MFJ whip antenna (to try on my recently-acquired Elecraft KX2). I was pretty proud of myself as there were an exceptional number of vintage radios I would have loved to have taken home (like the console radio below–!).

IMG_20160903_105938380_HDR