Category Archives: News

Outernet changes name to Othernet and (finally!) provides Lantern update

Back in February 2014, I first published a post about Outernet: a company with a goal to provide free access to information across the globe through a network of satellites.

I was an early backer of their crowd-funded all-in-one self-powered satellite receiver and digital storage wifi hotspot device, the Lantern. (That’s a mouthful.) In short, the Lantern was to be a portable digital library that could be updated through their satellite network. Initially, excellent progress was made on the Lantern, then availability of the CPU halted production and backers started to feel shaky when progress updates were no longer being published.

I had one specific goal in mind for the Lantern: using it for my non-profit, Ears To Our World. I was so eager to put a system in one of our schools in Haiti, that I purchased their kit and tested it for the better part of a year hoping to learn the ropes prior to the Lantern’s release. The system seemed to work at first, but there were many glitches: the interface with tablets and mobile phones worked intermittently and the satellite link was prone to fail either due to hangups with the CPU or something else. I never deployed it because it was simply too unreliable. (Instead, we put resources into the RACHEL-PI system).

Then, Outernet dropped usage of their geosynchronous satellites which made my equipment pretty much useless. According to Outernet, they did so to invest in a faster satellite network.

Yesterday, I finally received an email update about the Lantern device and Outernet in general. I hope Outernet (now Othernet–-you’ll read about that below) keeps us better informed than they have in the past and I hope the Lantern device actually comes to fruition. I still think it’s a great idea, but my faith has been shaken.

(Source: Syed Karim at Othernet)

Broadcasting Khan Academy 24/7

Hello Backers,

Yes, we are still here. It’s been a long while since the last update, but that does not mean we have stopped–or even slowed–working on Lantern. We have been making progress, though it has been much, much slower than what everyone wants. Fortunately, we are in the final stage of development.

The last update described the new network technology we had developed. Our original goal was to broadcast 20 MB of content per day, which is what we were doing with our previous network. The new system is operating at 10-times that speed, which is a little over 20kbps and 200 MB of content per day. Some of the work we’ve been doing over the past few months is related to tripling our current download speeds. Our target is 60kbps, which results in over 600 MB per day. The size of the device will be similar to a standard flashlight.

At our current download speed of 20kbps, we are broadcasting both data and a 24/7 audio stream. I know many of you were interested in the educational applications that were highlighted during the campaign, which is why I’m very pleased to share that we are currently broadcasting the entirety of Khan Academy as a 24/7 audio stream. The Khan Academy library consists of over 900 separate lectures, which we’ve turned into a giant audio playlist. Now we just need to get Lanterns into everyone’s hands.

The next update will include a picture of our final antenna design. The antenna that is currently included in our DIY kit is 2-inches/5-cm across and the shape of a cone. We are trying to flatten the cone and also increase the size to about 4-inches/10-cm, which is what allows for greater download speeds. Since we are operating at microwave frequencies (12 GHz), both the design of the antenna and the parts to convert the high frequency to a lower one are pretty tricky. Microwave engineering is widely considered black magic, which is the main reason for the long break since the last update. We are close to turning the corner and are targeting the end of the year for our initial production run.

Unrelated to our technical work is our recent name change. We had been fighting a trademark issue for the past four years. We recently decided that it made more financial sense to change our name, rather than continue spending legal fees to defend our position. We are now Othernet (http://othernet.is). This name change does not mean we are going away, nor does it mean we are not delivering Lanterns. It’s just a legal hiccup.

Thanks for your patience and support while we get through the final stage of building what you all backed several years ago. I know it’s been a long time and we are making every possible effort to deliver something that exceeds everyone’s original expectations. Although it’s taking three times longer to develop and ship the product, what we now have will be ten-times more useful.

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Radio Deal: The Grundig/Eton Mini shortwave portable

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Many thanks to SWLing Post contributor, Larry, who notes that the price of the Grundig Mini has just dropped to $24.99 shipped on Amazon.com. Larry notes, “I believe this is the lowest price I’ve ever seen for the Mini which is a decent little pocket radio.”

I should add the standard Amazon disclaimer noting that they change price without notice.

Click here to purchase through Amazon.com (affiliate link).

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Jackie Gleason loved radio

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Jackie Gleason with Audrey Meadows (The Honeymooners)

Many thanks to SWLing Post contributor, Ron, who notes that, “Jackie Gleason was a radio nut during his last years.” He shares the following quote from Gleason’s stepson [source]:

“The majority of his time at home was spent quietly,” he said. “He was a prolific reader. Constantly reading. There was a store called Bookland… Every week or two the owners would come by and drop off a box of books. Jackie just consumed books. He read everything but he was most intrigued with non-fiction. He felt that his life as an actor, as a performer, was all fiction.

“He also listened to the radio. He had a room upstairs that we called the radio room. There were dozens of radios. He listened to airplanes flying over at the airport, long distance radio operators from around the world. He had the passion and curiosity of a child with the experiences of an adult.”

Thanks for sharing that, Ron! I’ve always liked Jackie Gleason and especially those episodes of The Honeymooners.

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Shortwave antenna options for apartments, flats and condos

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A balcony is your friend, if you have one. Otherwise, we need to use other antenna tactics!

Many thanks to SWLing Post contributor, Tim, who writes:

I am a regular subscriber here, but until now have not formally commented. I’ve been an avid SWL since 1977.

I am intrigued by your in-depth article on understanding and setting up SDR’s. But, what about an antenna? How well will these radios work for someone who is an apartment dweller?

I live here in South Florida and am unable to erect anything outdoors. I do get pretty good reception on my Grundig Satellit 800 and Tecsun PL-880. For these, I use either an indoor slinky antenna I bought on E-Bay; or an active indoor tunable loop antenna. This is one of the models past reviewed by you. It is Australian made, and covers 6-18 MHz. Please comment if you can on antenna usage.

Thank You very much!

First of all, I’m glad you enjoy the SWLing Post, Tim!

Great question: no doubt you understand that the antenna is the most important part of your radio equation!

It sounds like you’re currently using a slinky antenna and a portable PK Loop HF antenna.

The PK Loop

You’re on the right track with a PK Loop if you live in an apartment and have no way of putting an antenna outdoors. Being a small magnetic loop antenna, the PK Loop should help mitigate a bit of the noise in your apartment building.

What I love about the PK Loop is it’s small enough that you can re-position and rotate it to tweak noise rejection and find the quietest spot in your listening room. When I travel by car and even by air, the PK Loop is a welcome companion.

Before we talk about investing in a better indoor antenna, let’s make sure we cover a more affordable option first…

External wire antennas

If you have operable windows in your apartment, even fishing a thin-gauged wire out of your window–allowing it to simply hang along the outside of the building–could improve your reception significantly. Of course, if there’s a source of noise outside of your apartment it might only make things worse, but this is at least an inexpensive experiment and the results might impress you.

I actually tested this theory once and published the following results in a previous post about the PK Loop:

I had a fantastic opportunity to evaluate how well the PK Loop would perform in a typical hotel room. My buddies Eric (WD8RIF), Miles (KD8KNC) and I stayed overnight in a hotel on Wright-Patterson Air Force Base during our mini National Parks On The Air DXpedition.

The hotel room was indeed dense with RFI.

We hooked my Electraft KX2 to both the PK Loop and to a simple random wire antenna.

Without a doubt, the PK Loop was much better at mitigating radio noise than the wire antenna we hung on the inside of the hotel window.

Unlike most modern hotels, however, this one actually had operable windows, so we tossed the random wire out the window and made another comparison. In this case, the external wire antenna consistently outperformed the PK Loop, no doubt because it had the advantage of being outside the radio noise cloud within the hotel’s walls. It goes to show that outdoor antennas–even if simply hanging from a room window–will almost always outperform comparable indoor antennas.

So, if you have a way to dangle a wire out one of your window, give this a try.

How long should the wire be? I suppose it depends on how much vertical space you have below your window. For starters, I’d try to suspend at least eight feet of wire outside. If I had the vertical space, I’d try as much as 31 feet.

Important: First you must check to make sure your wire couldn’t possibly touch electrical lines. Never lower a wire outdoors if the wind could blow it into an electric service entry point, power line or any other type of line or cable. You should do a thorough inspection of the site first.

With that said, keep in mind: Stealth is key!

Can you spot the wire antenna in this photo? Of course not.

Use a thin wire with a black or dark jacket/insulation. Only lower it when using it–don’t leave it out all day long. Check to make sure your antenna isn’t going to interfere with your neighbors below (like landing in their outdoor grill or flower pots!). One strong complaint from neighbors could shut down your operation permanently.

Now back to loops…

If you don’t have operable windows or a way to deploy a wire antenna outside–or you’ve tried a wire antenna and results were unsatisfactory–then you will be forced to stick with indoor antennas which almost always leads you down the path of larger amplified wideband magnetic loop antennas.

This is a topic I covered extensively earlier this year.

Please read the post: Indoor shortwave antenna options to pair with a new SDR.

Indoor shortwave antenna options to pair with a new SDR

Keep in mind that if you’re fortunate enough to have a balcony, this is where you should mount your loop antenna. Check out this post by SWLing Post contributor, Klaus Boecker.

Klaus Boecker’s homebrew magnetic loop antenna.

Note that there are a number of sub $100 indoor amplified antennas on the market, but I would avoid using them–click here to read my thoughts about these.

In addition, read through this post which includes practical low-to-no-cost tips and best practices for shortwave listening at home and on the go.

Frugal SWLing: Investing little, but getting a lot out of your radio

I’m plotting to write a more in-depth article about antennas in the coming months, but it will focus on external antennas and methods of mounting them. When you have no means of mounting an antenna outdoors, in my opinion, your best options are the ones mentioned above.

Post readers: Have I overlooked an indoor antenna option? Please comment if you have experience with indoor antennas!

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