Giuseppe Demonstrates his homemade “Minimal Long-Distance Dipole”

Many thanks to SWLing Post contributor, Giuseppe Morlè (IZ0GZW), who shares the following:

Dear Thomas and Friends of the SWLing Post,

I’m Giuseppe Morlè from Formia, central Italy on the Tyrrhenian Sea.

This time I want to show you 2 QRP connections made with minimal antenna over long distance and very few watts of power…

The antenna is a simple dipole, 5 meters per arm, 1/4 wave for 20 meters, on a bnc / banana socket directly on the Icom 705. You’ll see that the ROS is really optimal.

I wanted to experience this very simple antenna, easy to prepare in this location surrounded by greenery, Monte Orlando Park in Gaeta on my favorite DX bench;
this location is at 120 meters above sea level and facing south / west following the long path. A suitable place for the extreme right made especially for a receiver like the Icom 705– fantastic modulation and without any kind of noise.

In the first video the contact with VK2GJC, Greg from Australia who struggles a little to listen to me but immediately understands my name. As you can hear Greg’s voice is without any imperfection even if his signal is not that high:

In the second video, another link with Australia, VK5AVB, Tony from Kangaroo Island.
Tony had a hard time understanding my name but with the help of Nicola, IU5EYV from Tuscany, in pure Ham Spirit, he finally managed to log me:

As you can see, even with very minimal antennas hoisted on nearby trees, not even high from the ground, you can listen and contact over long distances … that’s why I love this place so much!

Thanks to you all, a cordial greeting from Italy.

Many thanks, once again, Giuseppe for showing us just how much fun we can have by building our own antennas and hopping on the air with very little power. I must say: you certainly play radio in a beautiful part of the world! Thank you!

Jason’s solution to a false low battery indication on the Tecsun H-501x

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Many thanks to SWLing Post contributor, Jason Walker, who shares the following advice:

H501x Tecsun Battery Issue – False Low Battery Indication – Solution

As a H-501x owner I have found a solution to ‘false’ low battery indications on the radio, having tried several high quality batteries to lengthen the runtime, even a high capacity 3500mAh Fenix, without much success.

Last week, I noticed that when the radio was physically moved or tapped, the battery indicator would vary to low and radio cut out. I have traced this to a poor battery terminal connection (poor spring strength primarily) on the battery bays A & B.

By using a very light sanding of the positive battery contacts in the radio with fine sandpaper and cleaning of the 18650 battery terminals, not only does the issue go away, but the radio runtime improves significantly and battery capacity indicator returns to full.

I would be interested to know if anyone else has come across this issue? This may also be a cause of low H501/x runtimes mentioned in other posts.

Stronger battery springs with higher tension would improve the battery to terminal connection, as a product improvement suggestion for Tecsun or perhaps a local mod?

Jason Walker, Christchurch, New Zealand

Thank you for sharing this, Jason! No doubt a very easy modification that produces meaningful results. Again, many thanks!

Les spots a near-mint Lowe HF-225 on eBay for $550 shipped

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Many thanks to SWLing Post contributor, Les (K3JTP), who writes:

Lowe HF225 with FM and AM Synchro offered on eBay at about US$500 + US$50 shipping from Netherlands. Almost mint condition,. A rare find of a highly rated receiver made in the UK.

Click here to view on eBay (partner link).

Thank you so much for sharing this, Les. I’ll be the first to admit that I’ve always wanted a Lowe and I’m quite fond of the simple display on the 225. INdeed, I think one of the strong points of Lowe was a focus on audio and reception all while keeping the controls and package so incredibly simple. This seller has a perfect rating and the radio is obviously in wonderful cosmetic shape. This will make someone a happy Lowe owner.

Thanks again for sharing, Les!

AWA: Radios and the the Disappearance of Amelia Earhart and Fred Noonan

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Earhart and Noonan by the Lockheed L10 Electra at Darwin, Australia on June 28, 1937 (Source: Wikimedia Commons)

Many thanks to SWLing Post contributor, Mark (AE2EA), who shares the following video presentation by the Antique Wireless Association:

Radios and the the Disappearance of Amelia Earhart and Fred Noonan

Today, when GPS provides astounding levels of absolute position accuracy, it can be hard to appreciate the navigational challenges that Amelia Earhart and Fred Noonan experienced on their around the world flight in 1937. Radio played an important part in in their success, and possibly in their failure. AWA member Brian Harrison, KN4R, takes a deep dive into the role of radio in Earhart’s last flight, it’s possible role in her disappearance and how a group of dedicated researchers are recreating Earhart’s and Noonan’s original transmissions using the same type equipment to help solve the mystery of their disappearance, and possibly locate their Lockheed Electra 10E.

Click here to view on YouTube.

Silence in the Library (please)

“The Texas Tank: A Prison Radio Station Changing Lives”

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SWLing Post friend and contributor, David Goren, notes that a piece he’s produced and Maria Margaronis has presented is now available to listen to online via BBC Radio 4:

(Source: BBC Radio 4 with Photo credit from Michael Starghill))

The Allan B. Polunsky Unit in Livingston, Texas, used to be known as the Terror Dome for its high rates of inmate violence, murder and suicide. Polunsky houses all the men condemned to death in Texas (currently 185) and nearly 3,000 maximum security prisoners. But since the pandemic, a prison radio station almost entirely run by the men themselves has helped to create community–even for those on death row, who spend 23 hours a day locked alone in their cells.

The Tank beams all kinds of programmes across the prison complex: conversations both gruff and tender; music from R&B to metal; the soundtracks of old movies; inspirational messages from all faiths and none. The station’s steady signal has saved some men from suicide and many from loneliness; it lets family members and inmates dedicate songs to each other and make special shows for those on their way to execution. Maria Margaronis tunes in to The Tank and meets some of the men who say it’s changed their lives—even when those lives have just weeks left to run.

Produced by David Goren.

Click here to listen to The Texas Tank: A Prison Radio Station Changing Lives on Radio 4.

WRTH 2023 will be available in print and digital form under new ownership

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Many thanks to SWLing Post contributor, Andrea Borgnino, who shared the following via Twitter:

The next edition of the WRTH “world’s most comprehensive and up-to-date guide to broadcasting” will be published in December 2022 in a printed and a digital version. The rights have now been transferred to Radio Data Center GmbH (RDC), based in Freising, Germany.

This is fantastic news! Thank you for sharing this, Andrea.

UPDATE: WRTH has posted the following press release (click to download PDF).

Of course, we’ll post more details as they become available.