Summer FM DX: Drive-by Sporadic E

Many thanks to SWLing Post contributor, TomL, who shares the following guest post:


Summer DX – Sporadic E, FM band

“Sporadic E” DXing is a specialty of some DXers.  I have never dabbled in it being content with mediumwave or shortwave listening.  However, it was truly fun to spontaneously hear this happen while driving on the Interstate highway, Wednesday August 4 around 6pm Central Time.

To quote from an ARRL propagation article:

“As frequency increases still further, signals will eventually pass through the F1 layer to the F2 layer. Because this is the highest reflecting layer, the distance spanned by signals reflecting from it is the greatest. The maximum skip distance for the E layer is about 2000 km. For the F2 layer that increases to about 4000 km—a significant gain.”

I was listening to the local classical music station WNIU in DeKalb, IL which is a good 50 kW transmitter about 10 miles behind me near the Interstate highway.  A different station was breaking through. Eventually, I heard a familiar Christian song “You Make Me Brave” swamp the classical music. I noticed it was a remake of a song made about 10+ years earlier. The two signals fought it out and then I heard the station ID “Spirit FM” and a short humorous segment called “Attitude Adjustment”, then more music.  Finally the local classical music station won out and I thought I would look up the station ID of that contentious station later.

When I googled “90.5 Spirit FM”, it came up with a station in Tampa Bay, FL called WBVM. Cool!  Just to be sure, I went to the station web site and looked up their playlist and this confirms what I heard:

Curious about the transmitter, Radio Locator said it was a 100kW station and gave the Long/Lat coordinates.  I then went to Google Earth and mapped an approximate distance of 977 miles (1572km), give or take 10 miles:

I did not have time to get on the shortwave radio to see if the 10 meter band was busy since I had things to do.  But it is a very nice surprise to hear in my old car radio an FM station almost 1000 miles away. For one thing, Analog radio is still fun.  Secondly, things are busy this summer if you are at the right frequency and time!

Happy Listening,

TomL

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Wanted: Quality 18650 3.7V rechargeable cells

Many thanks to SWLing Post contributor, Mike Hansgen, who recently mentioned that he’s on the hunt for quality 18650 Li-Ion cells.

Like Mike, I’ve a number of shortwave portables that use 18650 cells, so I understand where he’s coming from: he’d like 18650 cells that are both safe and have a long life. Even though most radios that use 18650 cells have internal chargers, I also assume he’d welcome quality external charger recommendations.

Mike said he’s willing to pay a premium for quality cells but frankly, I’m not sure what to suggest because it seems most of the ones I find are the average eBay and Amazon variety (ie. pretty darn cheap).

I know there are some here in the SWLing Post community who are flashlight enthusiasts and others who are well-versed in the world of rechargeable batteries.

If you have any suggestions, please share them in a comment! Thank you in advance as I’m also keen to hear your comments!

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WRMI will air a second series of Texas Radio Shortwave programs

Many thanks to SWLing Post contributor, Edward, who shares the following announcement:

WRMI to air second series of European free radio and low-power licensed stations

WRMI will air a second series of Texas Radio Shortwave programs featuring European free-radio and low-power licensed stations during September, October, and November.

The one-hour programs will be broadcast every Friday at 9 p.m. ET (Saturday at 0100 UTC) by WRMI, Okeechobee, Florida, on Texas Radio Shortwave’s “regular” frequency of 5950 kHz.

Dates and featured stations in Series 2 are as follows:

September 4-5 = Radio Clash (Somewhere in Europe)

September 11-12 = Radio Merlin (UK) *

September 18-19 = Crusin’ Radio (UK)

September 25-26 = CoolAM Radio (The Netherlands) *

October 2-3 = Radio Monique International (The Netherlands) *

October 9-10 = Radio Blackstone International (The Netherlands)

October 16-17 = Charleston International Radio (Germany) *

October 23-24 = KR1 (The Netherlands)

October 30-31 = To Be Announced

November 6-7 = To Be Announced

November 13-14 = To Be Announced

November 20-21 = To Be Announced

November 27-28 = To Be Announced.

*Series 1 station invited to produce a program for Series 2.

eQSLs will be available from individual stations. TRSW will not issue verifications for these programs.

These popular stations are heard regularly in Europe but seldom in North America because of propagation conditions.

Thank you for the tip, Ed!

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RCA Radio Tours Map circa 1934

My friend, Maristella Feustle, recently shared this classic RCA “Radio Tours” map of North America. RCA printed this in 1934–during the Great Depression–when most people could not afford to travel. Their map encouraged families to use their radios to travel the world over the air and experience local culture & music.

As Maristella pointed out, the detail on this map is pretty darn amazing.

Click here to download a high resolution image of this RCA map.

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Jock discovers the joys of ATS tuning with the C.Crane CC Skywave SSB

Many thanks to SWLing Post contributor, Jock Elliott (KB2GOM), who shares the following guest post:


Really cool trick the CCrane Skywave SSB will do — the “radio butler”?

To paraphrase Ratty from Wind in the Willows: ” “Believe me, my young friend, there is nothing–absolutely nothing–half so much worth doing as simply messing about with radios.”

That is precisely what I was doing . . . messing, simply messing about with the CCrane Skywave SSB.

Then I observed something. Just above the LIGHT button is some lettering: “ATS.” Not having taken notice of it before, I looked it up in the manual. It stands of Automatic Tuning System, and the manual says this about it:

“This feature programs all receivable stations in the AM, FM, Air and Shortwave bands to memory buttons. To use ATS, select your desired band: AM, FM, Air or Shortwave, and press and hold the ATS button for two seconds. The CCrane Skywave SSB will scan the entire band and automatically set all available stations in sequence 1-20. If more than stations are available, then the remaining stations will be preset to the next memory page, and so on.”

So I tried it; I punched in a shortwave frequency — 9250 — and pressed and held the ATS button for two seconds. The Skywave then muted itself and went to the bottom of the shortwave bands — 2300 — and started silently scanning through all of the international shortwave bands, hopping from one shortwave band to the next. Occasionally it would stop and silently store a frequency. After a while it stopped, unmuted, and began playing the very first memory that it stored. I checked the other memories that were stored and — sonofagun! — there were stations stored in each memory. Some of them were really faint, and I had to mess with single sideband and bandwidths to make them fully copyable, but they were there, automatically scanned and stored by the CCrane Skywave SSB. Obviously, you might want to repeat the ATS scan as shortwave propagation changes, say, from day to night.

Well, I thought, would it do it also for Air frequencies? Short answer: it certainly will. And it will do the same for AM, FM, and — get this — if you put the Skywave SSB in single sideband mode, it will scan the ham bands, automatically changing sidebands appropriately as it hops from ham band to ham band. Note: when you check the memories stored during an ATS ham band search, you may not find anything there, simply because ham transmissions come and go much more often than international broadcasters.

There is one downside to the ATS function. When the Skywave scans and stores stations, it does so starting at Page 1, Memory 1 of the memory system . . . always. So, if you scan the Shortwave frequencies and store frequencies they will be stored starting at Page 1, Memory 1, wiping out anything that you have already stored there. If you then use ATS on the Air band, it will then write over whatever you stored from the Shortwave frequencies. I wish there were a way for the user to designate at which page in the memory system ATS will begin storing frequencies so that the information stored starting at Page 1, Memory 1 is not constantly overwritten.

However, there is another trick the Skywave will do: if you have used ATS to scan and store Air frequencies in Page 1 of the memory system (which it does automatically), you can then press and hold the UP and DOWN buttons at the same time, the Skywave will then scan through the Air frequencies that are stored there. Further, there is a squelch function on the Skywave that works only on the Air frequencies. So, with a little persuasion (very little), the CCrane Skywave turns itself into a civilian air scanner.

The ATS function on the CCrane Skywave SSB is a bit like having a radio butler: “I say, Jeeves, find me what’s on the air this evening.” A short while later, Jeeves reports back: “Here you are, sir, I found 10 shortwave stations you might like to listen to.”

Frankly, I don’t know if other modern shortwave portable radios offer a similar function, but if you have a CCrane Skywave SSB, give the ATS function a try; it’s pretty slick.

— Jock Elliott, KB2GOM

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Radio Waves: 8 Meter Experimental Station, Forgotten Music Festival Found, Press Freedom Fear in Poland, and JA1TOKYO

Radio Waves:  Stories Making Waves in the World of Radio

Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers.  To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!


8-Meter Experimental Station on the Air from the US (ARRL News)

WL2XUP is an FCC Part 5 Experimental station operated by Lin Holcomb, NI4Y, in Georgia. It’s licensed to operate with up to 400 W effective radiated power (ERP) between 40.660 MHz to 40.700 MHz.

John Desmond, EI7GL, reports that as of mid-July, WL2XUP was intermittently transmitting on Weak-Signal Propagation Reporter (WSPR) on 40.662 MHz (1500 Hz) for 2 minutes out of every 10, with an output power of 20 W ERP into an omnidirectional antenna. For FT8 check-ins and tests, an ERP of 100 W may be used. The band is affected by several propagation modes, including tropospheric ducting, sporadic E, transequatorial propagation (TEP), and F2 propagation. As Desmond notes, the 40 MHz band will open a lot earlier than 50 MHz and could be a useful resource for stations monitoring the transatlantic path.

A 2019 Petition for Rulemaking (RM-11843) asked the FCC to create a new 8-meter amateur radio allocation on a secondary basis. The Petition suggests the new band could be centered on an industrial-scientific-medical (ISM) segment somewhere between 40.51 and 40.70 MHz. The spectrum between 40 and 41 MHz is currently allocated to the federal government and, as such, within the purview of the National Telecommunications and Information Administration (NTIA).

ARRL member Michelle Bradley, KU3N, of Maryland, filed the petition on behalf of REC Networks, which she founded and described in the Petition as “a leading advocate for a citizen’s access to spectrum,” including amateur radio spectrum.[]

An Indiana radio host found the last recording of a forgotten Evansville music festival (Evansville Courier & Press)

Inside a little shed in southwest Indianapolis, Kyle Long found something almost “too amazing to be true.”

It was some time in the early 2000s. Like he often did during his teenage and 20-something years, Long was trolling a garage sale for old music. He mainly worked as a club DJ back then, and he loved to pepper his sets with songs miles away from the top 40. If they had a connection to Indiana musical history, even better.

What he held his hands that day definitely did. It was a reel-to-reel tape. “61 jazz fest” was scrawled in the cover’s top-left corner, and Long noticed names like “Duke Ellington” written on the packaging.

He kept the tape at home for years before finally getting it digitized. That’s when he discovered he owned what is perhaps the last known recording of a star-studded – and ultimately doomed – Evansville music festival.

Thanks to a brash promoter, unlikely sponsors, and fallout from the actions of drunk teenagers 1,000 miles away, Evansville hosted what became known as the Indiana Jazz Festival in 1960 and ’61. Stars such as Ellington, Benny Goodman, the Staples Singers, Dave Brubeck and the future Lando Calrissian himself, Billy Dee Williams, whipped Roberts Stadium into a froth on hot summer weekends that attracted local residents and college kids from around the country.

CBS recorded snippets of the 1960 show. And in ’61, promoter Hal Lobree claimed the U.S. State Department planned to film the festival and turn it into a documentary called “Americana Indiana” that would be broadcast on the government-owned Voice of America.

Lobree dreamed it would become our version of the Newport Jazz Festival: the legendary yearly concert that, like its folk-singing cousin, still generates mountains of tourist cash for the small Rhode Island city.

But by 1962, the Indiana Jazz Festival was gone.[Continue reading…]

Poland: Media freedom fears as TVN24’s licence extension is suspended (Euro News)

Poland’s National Broadcasting Council has suspended the extension of the licence of the independent TVN24 television channel, which is owned and financed by an American company.

Negotiations are also underway in parliament on a new bill that would limit the ability of media to operate in Poland if they have large foreign investment.

If the bill goes through, TVN would fall into that bracket since it’s part of the American Discovery franchise.

Press Club Polska, an independent association of journalists, said the decision is an attempt to strangle media.

“In our opinion, the move to not extend TVN’s licence seems to be an attempt to put pressure on independent media,” explained Wojciech Tumidalski. “When it comes to this “lex TVN” bill, as they call it, it is unacceptable to pass a law against a single economic entity that plays an important role in the media market and is simply an independent medium that challenges the government.”[]

Olympic Games – JA1TOKYO is on the air (Southgate ARC)

On July 16 JARL opened the special commemorative station ‘JA1 TOKYO‘ in Nishitokyo City, Tokyo, to commemorate the Tokyo 2020 Olympic and Paralympic Games being held from July 23

After the opening ceremony of “JA1TOKYO”, an operator in charge was assigned to each band for active operation.

In the evening, a member of Japan’s House of Representatives Hirohiko Izumida 7K1KJK, who is an amateur radio operator and a member of JARL, attended the venue and operated the station in the 7 MHz band.

The station will be active until September 5.

Source JARL https://tinyurl.com/IARU-Japan


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Bob Colegrove on “The Joys and Challenges of Tuning Analog Radios”

Many thanks to SWLing Post contributor, Bob Colegrove, who recently shared this excellent article and has kindly allowed me to share it here in the the Post. Bob prefaced it by saying, “Being a retired technical writer, I started the attached article some time ago for my own amusement, but it quickly got out of hand.

“Got out of hand” in a very good way, Bob!

An excerpt from Bob’s article.

I love how this piece takes us through receiver history and explains, in detail, the mechanics and innovations. It’s also a very accessible piece that both the beginner and seasoned radio enthusiast can appreciate.

But don’t take my word for it, download it and enjoy!

Click here to download The Joys and Challenges of Tuning Analog Radios as a PDF.

Thank you again, Bob. This is a most enjoyable and informative read! This was obviously a labor of love. Thanks for sharing it with our radio community!

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