Monthly Archives: July 2018

Elecraft KX2/KX3: An inexpensive adapter for earphone and mic operation

Many thanks to SWLing Post contributor, Mike Hansgen (K8RAT), who shares this message from Wayne (N6KR) of Elecraft. This message was originally posted on the Elecraft email reflector:

Several KX2/KX3 users have asked what I use as an adapter to go from an iPhone headset to the rig’s headphone and mic jacks.

Here it is.

This unit works beautifully with both my old and new iPhone headsets. The combination of the headset and this adapter take a tiny amount of space in my go-bag. Audio reports are great, even with speech compression set to max (MENU:TX CMP).

You’ll need to set MENU:MIC BIAS to ON, and I also recommend setting MIC BTN to OFF.

You can tap the XMIT button to start voice-mode transmit, or use VOX. See VOX menu entries in the owner’s manual.

Note: There’s a rumor that one legacy version of the iPhone headset was different from the others. I don’t have any info on this, but it means there’s a slight risk that this $6 adapter won’t work in your case. But it certainly works with the earpods I bought a couple of months ago.

73,
Wayne
N6KR

Thanks for sharing this, Mike! I’ve just placed an order for this little adapter. When doing field operations, I always use in-ear headphones, but a separate hand mic because I don’t like packing or wearing bulky headsets. I’ve a couple of earbud/mic sets (neither an Apple brand) that should work brilliantly with this adapter.

Click here to view on Amazon.com (affiliate link).

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Tuckerton Radio Tower’s rich history and once record-setting height

(Image: RadioMarine.org)

(Source: The Sandpiper via Richard Langley)

Who knows how many Americans realize that 100 years ago the United States was at war? After all, when about 25 people on the street in Beach Haven in the summer of 2012 were asked for a SandPaper article what war the U.S. had been involved in 200 years previously, very few could answer the War of 1812. There seems to be a flaw in the way history is taught in the U.S., and maybe math as well.

So for those who don’t remember their high school history, in 1918 the U.S. was heavily involved – with well over 4 million troops in Europe – in World War I, the “War to End All Wars,” “The Great War.”

It is easy to imagine that even a world war wouldn’t very much affect what was then a remote and rural Ocean County. But it did, in many ways. German U-boats prowled the Atlantic off the Jersey Shore; nearby Fort Dix (at first Camp Dix) was created and became one of the premier U.S. Army basic training centers in the country for decades.

Nicholas Wood of the Ocean County Cultural Heritage Commission[…]discussed two aspects of Ocean County and WWI in his 75-minute lecture/slide show at the Long Beach Island Historical Museum on Monday evening.

[…]The second half of Wood’s presentation discussed the once-famous but now mostly forgotten Tuckerton Radio Tower, built in 1912 by the German government.

[…]The tower was 820 feet high, making it, at the time, the second tallest structure in the world, behind only the Eiffel Tower. It was one of the first and most powerful transatlantic radio stations ever constructed. It survived until 1955, when it was torn down and sold for scrap metal and today lends its name to Little Egg Harbor’s Radio Road.[…]

Click here to read the full story at The Sandpiper.

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Mike’s review of the Sangean HDR-14 AM/FM HD Radio

Sangean HDR-14 (left) and the C. Crane CC Skywave SSB (right) (Photo: Thomas)

Many thanks to SWLing Post contributor, Mike S, who comments with his short review of the Sangean HDR-14. Mike writes:

Well, I did something I said i would not do, triggered by Amazon’s tendency to introduce impossibly low prices on things for a couple of days, I sprang for the HDR-14. I have used it side by side with its direct competitor (the Nicetex “SPARC” SHD-TX2) for a few nights and a couple of days. Interesting little device.

As has been pointed out by those that read the specs, it is barely larger than the CC Skywave overall. It is made of the same soft, shiny black plastic as the larger Sangean portables (it is alternately a fingerprint magnet or a scuff magnet) but has a much less solid feel. The swivel-out foot on the bottom is a welcome addition and works well.

I have not yet played with other features (memories, etc) except to note that somebody has finally gotten it right in that memory locations store the chosen FM multicast channel instead of just the frequency.

The Sangean HDR-14 RDS display (Photo: Thomas)

Performance is a mixed bag. This is NOT an HDR-16 crammed into a smaller cabinet; not surprising, really, considering the amount of real estate available for circuitry. Analog FM and HD capture are right up there with the the larger sets and similar to the SPARC. I am unable to reproduce the spurious FM image problem noted by a lone Amazon reviewer. Audio is “just OK” out of the speaker with a harsh emphasis on treble – the SPARC portable is MUCH better with its passive radiator – but just fine for headphones or an external speaker.

However, for AM, that reviewer was spot on. The noise floor on AM is a tad too high and the native sensitivity a tad too low; resulting in “just OK” useable sensitivity on the band especially compared to the SPARC. I had no trouble with AM-HD on the only two stations in NYC metro (WCBS and WINS); however, it was unable to even detect the HD carrier from known stations in nearby cities that I was able to get >50% on the HDR-16 and HDR-18. The selectivity is better than the SPARC due to the DSP active for bandwidth adjustment; witness that I was able to clearly separate stations in Connecticut (600) and Philadelphia (610) from the splatter of local powerhouses at 570 and 620. Unfortunately too, analog AM reception is plagued with DSP artifacts reminiscent of earlier Tecsun sets which can even manifest in odd distortion in adjacent-channel splatter that bleeds into the tuned signal. The fact that the audio circuit/speaker accentuate the treble, make this even more annoying – the “ticks” from adjacent channel splatter are so harsh that you might think the speaker cone is damaged and vibrating.

I’m still waffling on whether to keep this one. It’s a nice little set which is sure to become a collector’s item, and its FM performance really is exemplary. But I kinda view the inclusion of the AM band as its raison d’être and in that regard it could certainly do better.

Thanks for your review, Mark!

It’s interesting that you couldn’t reproduce FM overloading or imaging. I have noted images on the FM band and it hasn’t been in a market as congested as that of NYC. It’s only noticeable when listening to stations adjacent to strong signals, however. It’s almost as if the FM filter is a little too wide.

I also agree about analog AM reception.

My HDR-14 review has been delayed due to a very hectic schedule, but I plan to complete it in the next couple of weeks! Thanks again, Mike!

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FTIOM & UBMP, July 22-18

From the Isle of Music, July 22-28:
This week, our special guest is Cuban Jazz saxophone virtuoso Michel Herrera, who will share and talk about some of his new recording Nueva Era.
Four options to listen to the transmission:
1. For Eastern Europe but audible well beyond the target area in most of the Eastern Hemisphere (including parts of East Asia and Oceania) with 100Kw, Sunday 1500-1600 UTC on SpaceLine, 9400 KHz, from Kostinbrod, Bulgaria (1800-1900 MSK)
2. For the Americas and parts of Europe, Tuesday 0000-0100 UTC on WBCQ, 7490 KHz from Monticello, ME, USA (Monday 8-9PM EST in the US). This has been audible in parts of NW, Central and Southern Europe with an excellent skip to Italy recently.
3 & 4. For Europe and sometimes beyond, Tuesday 1900-2000 UTC and Saturday 1200-1300 UTC on Channel 292, 6070 KHz from Rohrbach, Germany.

Uncle Bill’s Melting Pot, Sun, July 22 & Tues, July 24, 2018
Episode 72 presents some very entertaining Assyrian music from different countries. UBMP thanks Alexandra the Romanian Bellydancer for introducing us to some of the music used in this episode.
The broadcasts take place:
1. Sundays 2200-2230 UTC (6:00PM -6:30PM Eastern US) on
WBCQ The Planet 7490 KHz from the US to the Americas and parts of Europe
2. Tuesdays 2000-2030 UTC on Channel 292, 6070 KHz from Rohrbach, Germany for Europe. If current propagation conditions hold, the broadcast should reach from Iceland to Western Russia, Scandinavia down to North Africa and the Middle East, AND a long bounce to parts of New Zealand. 

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Boat Anchor Tuesday: National HRO-50T

Many thanks to SWLing Post contributor, Price Kagey, who shares the following photo for Boat Anchor Tuesday and writes:

“My wonderful HRO-50T. I have replaced all tubes and now need to start on capacitors and resistors.”

What a beautiful radio, Price!  Once you’ve re-capped and replaced the resistors in this girl, you’ll have a phenomenal receiver. I’m a sucker for those HRO dials! Thank you for sharing!

Post readers: If you’d like to share a photo of your boat anchor on Boat Anchor Tuesday, simply send me an email with the photo and a short description. I’ll put it in the pipeline to publish!

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What is the Radio Hobby? One Perspective

The Geloso G.215-AN

I have recently been re-exploring the hobby of photography, which is a lateral move from studying astronomy (my main interest being astrophotography). At one time in my life I was a semi-professional photographer, having studied photojournalism in college and dabbling in nature and street photography (as it is now named). And no, I was never a paparazzo!

Following a link from an article on today’s SWLing Blog I landed on an Italian radio/audio company’s archive, the company being Geloso.  The above image is an audio amplifier and it caused me to think about radios (and related equipment) in much the same way I have been currently thinking about photography. Allow me to explain.

I spent about a decade in photography back in the days of film, black and white and color. (This was back in the days when the earth was cooling and dinosaurs roamed the earth!) Film cameras are to modern-day DSLRs much like IBM PCs are to modern day Intel Pentium i7 computers — that is to say, technology has really changed! Seeing what modern cameras can do within the camera is rather astounding, and certainly far beyond what we could even dream of in the 70s. The same is true in radios, of course, with radios from the 40s and 50s in comparison to today’s rigs.

And yet, just like film cameras of old being used today producing incredible photographs, radios from the past can still produce incredible sound if maintained well and their operation understood. And yes, I am getting to my main point, but in an intentionally somewhat circuitous route!

As I have been learning about these modern cameras and watching copious videos on YouTube, I have heard a recurring theme come up. Back in my early days I, like many folks today, always believed the next lens or camera would take me over the top and allow me to produce incredible shots. Oh, I might not have stated it that way, but it certainly was present in recesses of my brain. Now mind you, I was producing good photographs, but I was always looking for those shots worthy of a portfolio, and thereby sometimes missing out on great shots right in front of me.

Having just recently  purchased a DSLR camera kit with two lenses, before I had even taken a handful of shots with it, I was starting to think, “What will I need to add to this setup to make it really good? Oops, old habits die hard! Today’s cameras (and optics) from the top 4 or 5 DSLR makers are all head-and-shoulders above what we had access to when I was in photography years ago. There is no reason to look for the absolute best optics unless you have literally thousands of dollars to spend for what are at best, modest improvements under specific shooting conditions. The talent is not in the camera or the lens, but rather in the person behind the camera.

The same holds true for radios today, whether receivers or transmitters. Sure, you can spend thousands of dollars on the top of the line receivers or transceivers, and under certain circumstances, such a purchase may be the right thing. But for most of us, which radio you use does not matter nearly so much as the skill of the operator using the radio. Both the camera and the radio are tools, nothing more. A skillful radio operator can pull signals out of the mud or work stations at the farthest reaches of the globe with a 1940s radio that has gorgeous audio with little to no filtering, or they can use a modern DSP-equipped, roofing filter-loaded rig to hear stations so close together a cat’s whisker could fit between them on the frequency dial. In both cases, it is the radio operator who makes the difference by understanding their rig and knowing how to get the best from it.

Now if you are the type of radio hobbyist who really enjoys playing with the newest radio to hit the market and can afford it, wonderful! You help the rest of us have options when we do decide it is time for a new rig. But if you are the type person who believes you can’t really enjoy radio without having that “other” radio with the slightly better specs derived from precise laboratory conditions with nothing to interfere with signal reception, you may just be missing out on what you have right in front of you.

Believe me, I am not one to judge because people in glass houses should not throw stones! I have simply been surprised at myself as these old instincts have arisen in me, when I thought I had put to rest such things! In the radio world I have resisted the siren call of enticing marketing for the latest whiz-bang radios, at least in these more recent years (!) and now must use that same resistance in my photography. In radio I have learned to get the best out of my gear, and the results are very satisfying. Here’s to hoping I can do the same behind the camera!

Robert Gulley, AK3Q, is the author of this post and a regular contributor to the SWLing Post.       Robert also blogs at All Things Radio.

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Shortwave Trading Part IV (Final Post)

(Source: SNIPER IN MAHWAH & FRIENDS)

After my first few public posts about shortwave trading, I gradually realized that I’d inadvertently created a worldwide network of deputy antenna sleuths. This is the final post in the Shortwave Trading series since the terms of my forthcoming employment agreement will prohibit me from future public talk on the technology of trading. I want to leave behind details on some of the research tools and techniques I’ve used. This is how the sausage is made.

I’ll also leave a list of locations that may be worth watching. Some may be near you. Even if I can’t talk about what’s found in the future, maybe you can? The comments below might be a good place to document new findings until there’s a better place offered.

In addition, following sections will set out the criteria I’ve used to assess the confidence that a shortwave trading site has been found, give example FCC searches, list links to web-based research tools I’ve found useful, give some tips on research techniques, and acknowledge the many people behind the scenes who’ve contributed to this work.

Plausibility Criteria

If you find something that looks like a shortwave trading site, how confident can you be that you’ve found the real thing and not a landing beacon for body-snatching space aliens? Since a shortwave trading site exists to link a local market to a remote market, I can think of two things that set a minimum bar for plausibility:

  1. Visual evidence of a shortwave antenna with a heading toward a remote market. Previous posts in this series have shown many shortwave antennas you can use as models of what to expect. Examples have included headings around 50º from Chicago which cover Europe.
  2. A path for connectivity to a local market. Visual evidence of this can be a microwave dish pointed in the direction of a local market.[…]

Click here to continue reading the full article.

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