Giuseppe’s homebrew rotating ferrite antenna

Many thanks to SWLing Post contributor, Giuseppe Morlè (IZ0GZW), who writes:

Dear Thomas,

I’m Giuseppe Morlè (IZ0GZW) from Formia, on the Tyrrhenian Sea, in Italy .

I built this simple rotating directive ferrite antenna for medium waves and the 160 meters ham band.

Inside the tube there are 2 ferrites with 43 cable windings and 3 for the coupling link that goes to the receiver.

In this video the test as soon as I assembled everything …

In broad daylight, it was 12.00 local time, you could hear well over 2000 km.

The antenna is very directive and perfectly manages to separate several stations on a single frequency.

The pipes are in plastic for plumbing use (PVC), I bought only that one, 5 Euros, the rest is all recycled.

I wanted to share this simple and very functional project of mine with the SWLing Post community.

Thanks and I wish everyone a better year.

Greetings from Italy.
Giuseppe iz0gzw.

Thank you, Giuseppe! What a simple, effective antenna project. I like how you’ve invested so little and recycled parts from other projects. I also love your view there looking south over the Tyrrhenian Sea! What a great place for radio.

Spread the radio love

Alan Roe’s updated B20 season guide to music on shortwave (v 3)

Reviving a Kindle, hacking a Nook, and more E-Ink, please?

37 Replies

I remember back in 2007 when Amazon announced their first Kindle E-Ink portable reader, I honestly couldn’t imagine how it could be useful. Why in the world would I abandon print books and stare at yet another screen?

A couple years later, I sat next to a (rather talkative) passenger on a trip to Seattle. She had an Amazon Kindle–it was the first time I’d seen one in person. While I knew all about the device’s functionality, I couldn’t get over how appealing the E-Ink display appeared.

The image was greyscale, there was no backlighting and the print was incredibly crisp. It looked like great paper copy. She handed me her Kindle and I read a couple pages and was hooked.

In November, 2011, I purchased my first Kindle E-Ink reader: the Kindle III keyboard. That particular model sported Wifi and free international 3G connectivity. It also had a cool experimental page with a functional, basic web browser that could actually cruise the internet–albeit with an interface that was never designed to do so. For a while there, I had free 3G service through that browser which came in very handy when I was off-grid two months the following summer on Prince Edward Island, Canada.

While I didn’t use the Kindle every day (I do still love paper books) it became an amazing and useful travel companion. It was great hopping on a flight with a whole library of books in tow.

Fast-forward a decade…

These days, I’m not sure if the 3G functionality still works, but my Kindle still does. Indeed, it works as well as the day I purchased it, save the battery life.

I used to charge the Kindle and it would operate for weeks on one charge. Lately, it needed charging almost daily. Not a surprise as this device celebrates it’s 10th birthday this year.

Even though consumer electronics manufacturers these days don’t want you to know, you can almost always replace batteries in devices as long as you’re willing to crack open the case and even solder battery tabs on occasion. I’ve replaced batteries in iPhones, Android phones, tablets, and numerous rechargeable devices.

I ordered a $15 replacement battery for my Kindle and installed it last week; it was a very simple, solder-free installation.

And it works like new again!

I’m such a believer in E-Ink tablets, I backed the Earl Android tablet in 2013. Earl was a rugged device that was supposed to even include a basic shortwave radio receiver.

It was a brilliant concept, but sadly failed. I believe the guys behind the crowdfunding campaign were sincere in their desire to create the product, but they lacked the experience to bring it to fruition, were poor communicators with their backers, and many lost their crowdfund contributions when the Earl project simply disappeared. A very, very sad ending to what could have been a revolutionary product.

Nook Hacking

In 2018, I presented at Hackers On Planet Earth (HOPE). My buddy, Dave Cripe (NM0S), and I split the cost of a room at the Hotel Pennsylvania where HOPE was held that year. One evening we started talking about the Earl tablet (I believe Dave was also a backer) then he showed me his uber-cool, do-it-yourself E-Ink tablet: a Hacked Nook Simple Touch.

He showed me how, through a fairly simple process, you could root the Nook and replace its operating system with a basic Android OS. This opened the Nook up to more uses like web browsing and even adding some apps from the Android market.

After returning home from HOPE 2018, I hopped on ShopGoodwill.com and purchased two Nook Simple Touch readers for a whopping $15 US.

I knew it was risky purchasing from ShopGoodwill.com because these devices had not been tested and I had no idea how old they were. Still, the bet (or winning $15 bid) paid off: both Nooks worked perfectly.

I rooted both units.

Funny thing is, I gave one of the units to my wife and it has become her favorite digital device. Once she discovered Project Gutenberg–a massive searchable repository of public domain books–and the fact that one of her favorite authors (P.G. Wodehouse) had numerous books in the archive, she was hooked. I loaded her Nook device with over 100 books she hand-picked from the archive.

My rooted Nook is loaded with Sir Arthur Conan Doyle novels and loads of other classics. I also have a PDF of my car’s owner’s manual, a copy of “Where There Is No Doctor,” and a number of other useful reference books (like issues of The Spectrum Monitor magazine!).

It must be the best $15 I’ve ever spent.

I also love the fact we gave these two discarded Nooks a second (upgraded!) life.

E-Ink love

E-Ink devices have improved over the years and backlighting options now are most impressive.

I’ve come so close to purchasing the Mobiscribe Origin, even though it lacks a GPS and other functionality I’d like.

Ideally, I’d still love to have an E-Ink tablet that’s somewhat weatherproof, sports a large rechargeable battery, allows for on-screen writing with a stylus, connectivity for a Bluetooth keyboard, features a GPS with topo maps, and supports full pinch-to-zoom functionality.

Please, if a device like this ever surfaces, let me know.

Any other fans of E-Ink devices in the SWLing Post community? Please comment!

Spread the radio love

Mario spots a National Panasonic Cougar 2200 (RF-2200) on eBay

4 Replies

Many thanks to SWLing Post contributor, Mario Filippi, who notes a National Panasonic Cougar RF-2200 that’s currently available on eBay. The Cougar is an Asian version of the venerable Panasonic RF-2200.

This model appears to have an original box in great shape. The price is steep, though at roughly US $563.35 as a Buy It Now listing although it does include free economy shipping from Japan. The seller also notes, “The first stage of the antenna is removed, so it is bonded.” Not exactly sure what that means and am guessing it’s a machine translation from Japanese.

Mario notes that most of the Cougar 2200s he spots on eBay are from sellers in Japan and at a recent auction one fetched $400.

Click here to view on eBay.

Thanks for the tip, Mario!

Curious if any Post readers have the Cougar 2200? I’ve never seen one in real life, but I assume the differences between it and the RF-2200 or DR22 is branding and power cord? Please feel free to comment if you own one.

Spread the radio love

Patrick asks: “Was James Bond a ham radio operator and shortwave listener?”

11 Replies

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

Many of us have more time during the holiday season to watch good old movies on either streaming services or just old-time DVD. My favourite pastime is to watch James Bond movies, based on the books by Ian Fleming. The iconic British agent in Her Majesty’s service offers insights to technical advancements in different areas.

The other night I was wondering if the fictional character was a licensed ham radio operator and a shortwave listener? First, let me say that he most likely had advanced techniques to master radio communications in several aspects, among them most likely amateur radio and listening to shortwave broadcasts.

In the first movie, Dr. No, (1962), the presence of ham radio or shortwave radio communications is most present, as noted by the SWLing Post blog and we can also get a glimpse of what could be the BBC Monitoring Station. The matter is also discussed by Dr. Bob Heil (K9EID) on YouTube:

But even in other James Bond movies there are different forms of radio communications. In the 1979 movie Moonraker, James Bond confronts the Dr. Holly Goodhead in Venice, Italy, by taking her purse at 01.12.15 in the movie and concludes in what seems to be a shortwave radio with morse that it is standard CIA equipment.

As a commander in the Royal Navy, James Bond would know morse code as well as several aspects of shortwave band. Both at sea but also in his duties as a Secret Service agent operating abroad he most likely listened to BBC World Service and British military radio stations, numbers stations among them, Although we do not know if he carry with him a shortwave receiver or a very small shortwave transceiver. The innovative character of Q probably equipped him with the latest technology.

In the opening scenes of the 1985 movie A View To A Kill James Bond traced a signal with a gadget that looks like a typical yellow Sony Walkman and in the movie The Spy Who Loved me (1977) James Bond receives a message on his watch what seems to be a tape coming out from the watch, telling him to contact the Headquarters.

In the movie Thunderball (1965) at 00.56 James Bond enters a room where a radio operator listening till BBC Overseas programme is listening to a news bulletin with a coded message that Big Ben had strike seven times at six o’clock.

This is fun, Patrick–thanks so much for sharing! Without a doubt, in real life, Cold War era spies used the shortwaves heavily for both receiving and sending coded messages. Indeed, we believe foreign operatives still use the services of numbers stations.

Your message is so timely: I’ve heard from both family and friends recently who are on a bit of a James Bond binge!

Spread the radio love

Upgrading my Yaesu FT-817 transceiver with the G7UHN rev2 Buddy board

3 Replies

Last August, SWLing Post contributor, Andy (G7UHN), shared his homebrew project with us: a genius companion control display for the venerable Yaesu FT-817 general coverage QRP transceiver.

Andy’s article caused me (yes, I blame him) to wax nostalgic about the popular FT-817 transceiver. You see, I owned one of the first production models of the FT-817 in 2001 when I lived in the UK.

At the time, there was nothing like it on the market: a very portable and efficient HF, VHF, UHF, multi-mode general coverage QRP transceiver…all for $670 US.

In 2001? Yeah, Yaesu knocked it out of the ballpark!

In fact, they knocked it out of the ballpark so hard, the radio is still in production two decades later and in demand under the model FT-818.

I sold my FT-817 in 2008 to raise funds for the purchase of an Elecraft KX1, if memory serves. My reasoning? The one thing I disliked about my FT-817 was its tiny front-facing display. When combined with the embedded menus and lack of controls, it could get frustrating at home and in the field.

I mentioned in a previous post that I purchased a used FT-817ND from my buddy, Don, in October, 2020. I do blame Andy for this purchase. Indeed, I hereby declare him an FT-817 enabler!

FT-817 Buddy board

When I told Andy about my ‘817ND purchase, he asked if I’d like to help him test the FT-817 Buddy board versions. How could I refuse?

Andy sent me a prototype of his Version 2 Buddy board which arrived in late November. I had to source out a few bits (an Arduino board, Nokia display, and multi-conductor CAT cable). Andy kindly pre-populated all of the SMD components so I only needed to solder the Arduino board and configure/solder the cable. I did take a lot of care preparing and soldering the cable, making sure there was no unintentional short between the voltage and ground conductors.

Overall, I found the construction and programming pretty straight-forward. It helped that Andy did a remote session with me during the programming process (thanks, OM!). Andy is doing an amazing job with the documentation.

I do love how the board makes it easier to read the frequency and have direct access to important functions without digging through embedded menus. While there’s nothing stopping you from changing the program to suit you, Andy’s done a brilliant job with this since he’s an experienced FT-817 user.

The Nokia display is very well backlit, high contrast, and easy very to read.

“Resistance is futile”

I mentioned on Twitter that, with the backlight on, the FT-817 Buddy makes my ‘817ND look like it was recently assimilated by The Borg.

Don’t tell any Star Trek captains, but I’m good with that.

Andy has a rev3 board in the works and it sports something that will be a game-changer for me in the field: K1EL’s keyer chip!

For more information about the FT-817 Buddy, check out Andy’s website. At time of posting, it’s not available yet, but as Andy says, “it’s nearly there!”

Of course, we’ll keep you updated here as well. Many thanks to Andy for taking this project to the next level. No doubt a lot of FT-817 users will benefit from this brilliant project!

Spread the radio love

What radio projects and adventures await you in 2021?

24 Replies

This morning, I’m catching up with email and posts as I’ve had less online time these past few days (not a bad thing). I’m also trying to sort out and organize some of the gear in my compact shack/office.

As I do this, I can’t help but think through some of the radio projects that await me in 2021–so I started making a list.

2021 Radio Goals

Portable DXing: I hope I’ll be able to travel again in the latter part of 2021 and take my portable SDR pack to capture spectrum recordings in the field. I really miss doing this.
Carefully go through my portable radio collection and “thin the herd.” I’ve no intention of letting go of everything, but I’ve a number of small, inexpensive portables I never touch and don’t plan to use for comparisons
Purchase a few more cables and a mic to complete my multitrack recording and receiver comparison setup. Massive thanks to my friend, Matt Blaze, who’s helped me through this process.
Finally replace that faulty keypad on the Drake SW8! (This might be the first thing I do in the new year.)
Antenna Farm improvements and upgrades:
It’s time for the remote tuner box to get a rennovation!
- I plan to re-build my remote tuner box (that’s served me so well for a decade–see photo)
- install all new connectors, components, and change the balun
- add a remote antenna switching device
- beef up lightening protection
- and replace all of the coax feed lines.
- I also plan to add a home brew 80 meter vertical and possibly a 20M delta loop oriented E/W
QRP EME: I still need to sort out a VHF amplifier, antenna, connectors and cables for my QRP EME station. I hope to have the pieces together by mid 2021.
Build my QCX+ and QCX Mini transceivers (really looking forward to that!)
Continue participating in Parks On The Air (POTA) and write up most field reports on QRPer.com
Activate at least ten sites for Summits On The Air (SOTA)
Tick off a few more goals from my “Social DX” list

In truth? I’ve more goals than this, but I’m trying to be somewhat realistic. The top priority is investing time in my antenna situation at home. All of the coax lines are aging and I know are no longer up to spec. I see cable and even connectors as long-term consumables and it’s definitely time to reinvest!