The new CommRadio CTX-10 QRP general coverage transceiver

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Many thanks to Fred Osterman and Dave Zantow for sharing information about the new CommRadio CTX-10 transciever.  Here is the description from Universal Radio’s catalog:

AeroStream Communications near Golden, Colorado entered the hobby radio market in 2013 with their revolutionary CommRadio CR-1 and follow up CR-1a SDR receivers. The success of these innovative radios left many asking for a transceiver of similar size and capability.

The answer is the just announced CTX-10.

The CommRadio CTX-10 blends high performance, internal SDR technology, high efficiency circuit design, compact size and simple operation. This multi-mission QRP radio is ideal for field use and emergency operations. Transmitter covers 160-10 meter amateur bands with output power adjustable from 1 to 10 watts. The new design uses ruggedized land mobile power amps in push-pull. Every aspect of the radio design is optimized for low power consumption.

The efficient and sharp OLED display is readable in low or high lighting conditions. The radio has three built-in #18650 3.7V 2600 mAh Li-ion batteries providing 28.8 watt-hours of operation. A built-in intelligent charger provides seamless power management.

The general coverage receiver section uses multiple preselectors for optimized reception from 200 kHz to 30 MHz. An integrated CW reader and antenna tuner enhances portability. The premium tuning knob optical encoder is rated at a million revolutions.

Entire enclosure is aluminum with metal knobs and front panel. External connections are through-hole mounted for durability. Includes USB cable, DC power cord and manual. DC power requirements: receive 1.5 W, transmit 20 W. This quality device is robustly built in Colorado, U.S.A.

I’m really looking forward to reviewing the CTX-10. If the CR-1 and CR-1a are indicators, this could be a very well-built unit with a top-notch receiver!

Follow the tag CTX-10 for updates.

Oxford Shortwave Log: 200 metre Beverage antenna – initial reception tests

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Hi there, I have finally deployed the Medium Wave Circle-design 200 metre Beverage antenna (schematic diagram above) at the woods I use in Oxford, UK. It was terminated at the ‘front end’ with a 650 Ohm resistor into a 1 metre-long, permanent copper earthing rod that I had previously driven into the ground, away from the route taken by the general public. The actual wire was orientated in a generally westerly direction, and thus nulling signals propagating from the east. At the receiver end, I utillised my self-built transformer, wound for a 50 Ohm input impedance (14 turns on the primary), thus making the entire set-up suitable for the Elad FDM DUO. It was quite a pain to set up, taking over an hour to deploy the wire and connect both earthing rods and the transformer! However, intial results are very promising and here I am very pleased to share 3 reception videos with you:

The reception from Colombia and Ecuador was unprecidented and both of these tropical stations sound like local AM signals, aided of course by the Bose SoundLink Mini 2 (the Elad’s stand-alone audio is puny to say the least). The signal from Peru is weak, as would be expected, however, the low-gain/ high SNR performance of this antenna results in audio clarity that is better than I have ever heard previously from this rather exotic station. Further to these recordings, I managed to make two recordings of the entire MW band using the FDM DUO via the FDM-SW2 software and I’m hoping an analysis of the data will uncover some nice MW DX. Thus, all-in-all, a very good result with the 200 metre Beverage – more reception videos using this antenna to follow soon on my youtube channel Oxford Shortwave Log. Thanks for watching/ listening and I wish you all good DX.

Embedded reception videos with text links follow below:


 

 

 

Clint Gouveia is the author of this post and a regular contributor to the SWLing Post. Clint actively publishes videos of his shortwave radio excursions on his YouTube channel: Oxford Shortwave Log. Clint is based in Oxfordshire, England.

Contest Reminder: Your “dream radio”

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Think back to your first days in radio…What was your “dream” receiver?  And why?

Or–if you’re new to shortwave radio–what is your “dream” receiver currently, and why?

Many of us had a radio they dreamed of in their youth, or when they first began to hanker after the radio experience. What was yours?  For newer hobbyists, what is yours? And just what made–or makes–this radio so special? Did you ever obtain one?  And if so, did it live up to your expectations?

Share your experiences with the Post for a chance to win a prize from Universal Radio!

The winners of this contest will be chosen at random, using a randomizer application; an independent non-entrant will make these selections.

Thanks to Universal Radio and Fred Osterman’s generosity, there will be two winners of this simple contest–a US winner and an international winner.

The US prize will be a copy of Shortwave Receivers Past and Present by none other than Fred Osterman. I reviewed this book a couple years ago: it is an invaluable reference tool and also a fun “dream” book.  With sincere apologies to my international friends, this prize must be limited to the US simply because shipping this weighty volume internationally would cost more than the book itself.

ShortwaveReceiversPastAndPresent

The international winner may select between the following (less weighty!) books, also very good references: Joe Carr’s Loop Antenna Book or Buying A Used Shortwave Receiver: A Market Guide To Modern Shortwave Radios.

Entering the contest is easy. Simply go to our entry form (below or click here) and fill in the required fields.  Be descriptive! This will make the contest fun. Let us know in detail why that radio was (or is) so significant to you.

Your entry will be recorded, and the winners chosen at random on Sunday October 16, 2016. We’ll publish the responses once the contest concludes, sharing only the name you provide.

Radio Maubere: clandestine radio in occupied East Timor

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Many thanks to SWLing Post contributor, Phil Brennan, who writes:

Your readers may be interested in this article detailing a clandestine radio station that was set up between the Fretlin rebels in East Timor (now Timor Leste) and supporters based in Darwin where I live. The Fretlin rebels fought against the Indonesian occupation until the country’s independence in 2002. In the 1970s this was the only method of obtaining information on the brutal repression of the Timorese people by the Indonesian dictatorship

The man featured in the article, Brian Manning Snr., who died a couple years ago was a well known activist and trade unionist in the Northern Territory. He was also very involved in the campaign for Aboriginal workers to receive equal pay and conditions in the 1960s. This campaign was instrumental in raising the profile of the Aboriginal land rights movement in Australia. Brian Manning Jr. Is a good friend of mine.

(Source: ABC News)

If someone was to make an Australian version of Forrest Gump, they might look to Brian Manning’s life story for inspiration.

In 1966, he helped the Gurindji strikers in the Wave Hill walk-off. When Cyclone Tracy hit his hometown of Darwin, police commandeered his truck to collect dead bodies. Months later, he became involved in possibly the most important mission of his life.

That mission was Radio Maubere: an underground radio link that operated between Darwin and occupied East Timor during the 70s and 80s.

For many years, it was the only link the Timorese had with the outside world.

“Dad felt very strongly that these people needed to be supported in their struggle,” his son, Brian Manning Jr, said.

“So with a few other people, they got together and formed this radio operation.

“It was vital. There’s no doubt that the Indonesians were in there to systematically reduce the population by any means necessary.

“So these people were just killing people, and these stories had to get out.”

[…]As the years went on, and the list of confiscated radio transmitters grew longer and Manning’s tricks became more and more creative.

“They had a few decoy vehicles. And they had a few decoy radios. And they had people rendezvous with them in the bush in certain areas,” Brian Manning Jr said.

Often one person would set up the transmitter, another would come along and use it, and a third would arrive to pack it up and transport it out of danger.

[…]The broadcasters even devised their own coded language to communicate top secret information, remembers one of the group’s members, Robert Wesley-Smith.

“They each had a book, and the code would direct them to a page or something. It was very slow … but it was a great adventure,” Mr Wesley-Smith said.

Whatever problems Manning and his crew had in Australia were nothing compared to the dangers faced by those operating on the other end, where gunshots could sometimes be heard in the background.

There was a constant need to get new transmitters into the country, and an engineer from Sydney came up with an ingenious method for avoiding detection.

“It now fell to the resourcefulness of Andrew, who created a transmitter out of a ghetto blaster,” Manning wrote in his book.[…]

Click here to read the full article.

From the Isle of Music Preview for October 17/18

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A potpourri of styles of Cuban music…

Our October 18 (October 17 in the Americas on WBCQ) program offers a potpourri of reissues of Cuban music from prior decades and some more Cubadisco 2016 nominees – a mixture of traditional and contemporary.

Two options for listening on shortwave:
WBCQ, 7490 KHz, Tuesdays 0000-0100 UTC
(8pm-9pm EDT Mondays in the Americas)
Channel 292, 6070 KHz, Tuesdays 1900-2000 UTC
(2100-2200 CEST)
See the NOTES section of our Facebook page for more information. 

Dave warns of fake “Sony SW-33” receivers

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Fake “Sony SW-33”

Many thanks to SWLing Post contributor, Dave Zantow (N9EWO), who writes:

Here is an interesting one [I saw] on eBay this morning. A SONY marked SW33 SW portable, but of course it’s NOT the ICF-SW33 model you (or I ) are thinking of.

Click here to view on eBay.

Looks to be a Kchibo made radio (a model I tested for Passport years ago) ? Humm….but Kchibo’s are made by TOWADA Audio (in China and Vietnam plants). As you may already know TOWADA Audio also made all of Sony’s SW sets for decades going back into the 70’s (but at the Japanese Plant of course). So is this some unofficial model (but poorly marked) or just a total fake from a few years ago ??

Have more information on TOWADA and Sony on the bottom of my Sony Page : http://webpages.charter.net/n9ewo2/sony.html

But that is a weird one.

The real Sony ICF-SW33 (Image: Universal Radio)

The real Sony ICF-SW33 (Image: Universal Radio)

Thank you, Dave! Yes, obviously this “SW-33” is not the real item (see authentic ICF-SW33 above).

I’m guessing the seller has no idea this is a fake radio. Dave makes a good point: if it doesn’t look like a Sony, it probably isn’t! Buyer beware.

Update: RTÉ RADIO plans to axe longwave service in 2017

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Contrary to a news item we recently shared from The Independent, SWLing Post contributor, Mike Barraclough, notes the following news from the Irish Post:

RTÉ RADIO will proceed with plans to axe its longwave 252 service next year, it has been confirmed.

[…]RTÉ has consistently argued that better use could be made of the money and that listeners should consider other options, such as internet and satellite receivers, to tune in to their favourite shows.

Despite undertaking a survey of almost 3,000 longwave 252 listeners in Britain last year, in conjunction with Middlesex University London and the Irish in Britain charity, the broadcaster will now go ahead with the move.

The survey had revealed that the service was a vital “lifeline” for many elderly listeners, and an important link to their homeland.

[…]The Irish in Britain organisation, which helped facilitate the RTÉ survey, today said that they would be meeting with the consultative steering group in the next few weeks to discuss the next steps for the campaign to save longwave.

Chief Executive Peter McNulty told The Irish Post: “We will be sitting down with the consultative group to review the situation and discuss the research to see how we can move forward.

“The research is very clear that there is a demand for this type of service from the Irish community here in Britain. That link with home is very important.”

RTÉ would not reveal when in 2017 they plan to close the longwave service.

Read the full news item on the Irish Post.