Category Archives: Shortwave Radio

Guest Post: Zenith Trans Oceanics Still Command Big Prices

Many thanks to SWLing Post contributor, Dan Robinson, for the following guest post:


Zenith Trans Oceanics Still Command Big Prices

by Dan Robinson

For many radio collectors and users, the Zenith Trans Oceanic R7000-2 is a must-have item in the collection. This was the final version of the Zenith Trans Oceanic line that stretched back for decades — production was shifted to Taiwan and tuning in this radio is accomplished with internal gears, with concentric knobs for main and fine tuning.

The R7000-2 has Longwave, AM, FM and importantly for fans of aircraft listening, the radio
has excellent VHF reception. The huge Zenith TO telescopic aerial is a real eye turner — it is
super tall and compares only to the SONY CRF-1 in length.

Some years ago, the used market saw a few NIB or LNIB Zenith R7000-2 every year or so.
That hasn’t been the case — at least it was not until just recently when a LNIB TO appeared from a California seller.

NIB or LNIB R7000-2 radios could often bring more than $1,000 and sometimes much higher —
even as high as $1500!

That did not stop bidding on this-2 R7000-2 from topping the $700 mark and reaching nearly
$800 in this auction.

This does not mean, however, that every R7000-2 will be out of reach but other R7000-2 radios on eBay at this time suffer from cosmetic issues of one kind or another (see photos) such as detached side vinyl and missing antennas.

Amazingly, as this is being written there is yet another R7000-2 on eBay, complete with original
box and papers, and the original purchase receipt. This one could well hit the $1,000 mark.

If you’re hunting for an excellent late production Zenith TO, this may very well be the time
to pull the trigger — but for one in 9.9 to 10.0 NIB condition you will pay a price!

Click here to check this Trans Oceanic R-7000-2 out on eBay.

A True Treasure Trove: International Radio Club of America Free Reprints

Many thanks to SWLing Post contributor, Nick Hall-Patch, who writes:

Since 1964, the International Radio Club of America has been documenting medium wave DXing and DXers’ efforts to improve their understanding of radio reception and to develop better listening techniques.  During that time, over 900 articles have been written, that have furthered the art of DXing.  Many of these continue to be relevant to the more general radio hobbyist, including articles about antennas, radio propagation, receivers and accessories, plus general technical information.

Previously, those articles were available only to club members, but they are now available to all.  Go to www.ircaonline.org, and click on the “Free IRCA Reprints” button to download your own copies.

Oh wow! What an amazing and deep treasure trove of articles! Thank you so much for the tip, Nick!

Video demonstrating 3D propagation simulation

Many thanks to SWLing Post contributor, Gregory Ivanov, who writes:

Hi, found this video–I think it’s pretty cool. Shows some impressive 3D propagation simulation, I haven’t seen before:

Wow! That is fascinating. Thank you for sharing this, Gregory. 3D tools like this could be invaluable for predicting propagation even for hams and SWLs.

Of course, all of this is based on the amazing VOACAP application.

Dan discovers a video and photo montage of VOK listeners

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

The YouTube channel Phuong DPRK Daily recently posted a video titled Listeners to Radio “Voice of Korea” in Pictures. This video offers a look at photos of VOK Voice of Korea (DPRK) shortwave listeners. I recognize the voice of one of the VOK newscasters as the narrator of this video. It is interesting to take note of the shortwave receivers shown in the photos as well. This video was also posted on the Voice of Korea website on September 25, 2020.

I listen to the English Language Service of VOK Voice of Korea from my suburban listening post in Northern California, USA. The VOK English language broadcasts beamed to South America usually provide the best reception for me. Here is my most recent reception video of VOK. It was recorded on November 10, 2020.

There are more reception videos of VOK available at my website Willow Slough DX. These videos include newscasts read by the male announcer heard on the photo album video.

Happy SWLing! The shortwave broadcast bands are beginning to improve after the long nadir of solar minimum!

DanH

Thanks for sharing this, Dan!

1979 ANARC Convention live recording featuring keynote by Rudy Espinal of Radio Clarin

Shortwave Radio Audio Archive contributor, Tom Gavaras, shares some of the most amazing off-air, studio, and personal recordings our archive.

Recently, he submitted a very unique recording. Tom notes:

Rudy Espinal of Radio Clarin (Dominican Republic) keynote speech at 1979 Association of North American Radio Clubs (ANARC) convention held in Minneapolis, Minnesota. Convention took place in June 1979.

In this recording, you’ll hear a number of familiar names (including an early shout-out to our friend Kim Elliott).

I was in elementary school at the time of this convention, so it’s amazing bit of audio time travel for me.

Do you recognize any names in this recording? Do you remember Radio Clarin? Did you attend the 1979 ANARC Convention?  Inquiring minds want to know! Please comment!

Radio Deals: Airspy Black Friday Sale 2020!

If you’ve been thinking about pulling the trigger on an Airspy product, now’s the time!

Airspy is once again offering huge discounts during their 2020 Black Friday promotion.

For example, their Airspy HF+ Discovery SDR–which I consider to be one of the best HF SDRs on the market–is 30% off ($119 US). This is a phenomenal deal on an amazing SDR!

The YouLoop antenna is only $20.97 US. Click here to read my review of the YouLoop.

That’s such a good deal, I’m contemplating the purchase of a second one.

Both the HF+ Discovery SDR and YouLoop are the major components of my portable SDR DXing kit. During the Black Friday sale, you can purchase both for $141 US! That’s much less than the normal price of the HF+ Discovery alone.

It seems all Airspy distributors are participating in the sale, so click here to find the distributor that ships to your part of the world.

[Just found out the Frugal Radio channel also discovered this sale!]

Radio Waves: Potential for Change at USAGM, Judge Rules Pack Unconstitutionally Interfered With VOA, Solar Cycle 25 Could be Strong, and DEF CON Ham Radio Videos

Radio Waves:  Stories Making Waves in the World of Radio

Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers.  To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors Dan Robinson and Eric McFadden for the following tips:


The Biden Choice on USAGM: Business as usual, or major change (USC Center on Public Diplomancy)

Several years ago, I wrote about ongoing problems at Voice of America and its parent agency, which re-branded in 2018 as the U.S. Agency for Global Media (USAGM), and how Donald Trump would deal with them.

I suggested that the Voice of America could be shut down with little impact on the global media scene. This sparked outrage in some quarters, especially from those invested in perpetuating the yearly $600 million to $800 million taxpayer-funded media structure aimed at foreign audiences.

Space limitations prohibit a thorough review of events since Donald Trump’s nominee to head USAGM, Michael Pack, finally achieved Senate confirmation and took up his post after being blocked for two years by Democrats and some anti-Trump Republicans.

Pack faced a wave of hit pieces by major anti-Trump media as he moved to gain control of the bloated and entrenched USAGM bureaucracy, confront security issues at USAGM, and tackle political bias at VOA. His removal of key officials in charge of USAGM networks is still being fought out in the courts.[]

Trump Appointee Unconstitutionally Interfered With VOA, Judge Rules (NPR)

The chief executive over the Voice of America and its sister networks has acted unconstitutionally in investigating what he claimed was a deep-seated bias against President Trump by his own journalists, a federal judge has ruled.

Citing the journalists’ First Amendment protections, U.S. Judge Beryl Howell on Friday evening ordered U.S. Agency for Global Media CEO Michael Pack to stop interfering in the news service’s news coverage and editorial personnel matters. She struck a deep blow at Pack’s authority to continue to force the news agency to cover the president more sympathetically.

Actions by Pack and his aides have likely “violated and continue to violate [journalists’] First Amendment rights because, among other unconstitutional effects, they result in self-censorship and the chilling of First Amendment expression,” Howell wrote in her opinion. “These current and unanticipated harms are sufficient to demonstrate irreparable harm.”[]

Sunspot Cycle 25 could be among the strongest ever (Southgate ARC)

The ARRL reports a research paper has concluded that Solar Cycle 25 will stronger than the just-ended Solar Cycle 24 and likely stronger than Solar Cycle 23

The League says:

A research paper, “Overlapping Magnetic Activity Cycles and the Sunspot Number: Forecasting Sunspot Cycle 25 Amplitude,” by Scott W. McIntosh, Deputy Director of the National Center for Atmospheric Research in Boulder, et al., has concluded that Solar Cycle 25 could be among the strongest sunspot cycles ever observed, and will almost certainly be stronger than the just-ended Solar Cycle 24 (sunspot number of 116). The scientists say it will also most likely be stronger than Solar Cycle 23 (sunspot number of 180). As the abstract explains:

“The sun exhibits a well-observed modulation in the number of spots on its disk over a period of about 11 years. From the dawn of modern observational astronomy, sunspots have presented a challenge to understanding — their quasi-periodic variation in number, first noted 175 years ago, stimulates community-wide interest to this day. A large number of techniques are able to explain the temporal landmarks, (geometric) shape, and amplitude of sunspot ‘cycles;’ however, forecasting these features accurately in advance remains elusive.

“Recent observationally motivated studies have illustrated a relationship between the sun’s 22-year magnetic cycle and the production of the sunspot cycle landmarks and patterns, but not the amplitude of the sunspot cycle. Using (discrete) Hilbert transforms on more than 270 years of (monthly) sunspot numbers, we robustly identify the so-called ‘termination’ events that mark the end of the previous 11-year sunspot cycle, the enhancement/acceleration of the present cycle, and the end of 22-year magnetic activity cycles. Using these, we extract a relationship between the temporal spacing of terminators and the magnitude of sunspot cycles.

“Given this relationship and our prediction of a terminator event in 2020, we deduce that Sunspot Cycle 25 could have a magnitude that rivals the top few since records began. This outcome would be in stark contrast to the community consensus estimate of Sunspot Cycle 25 magnitude.”

McIntosh’s recorded presentation of the paper is available at this link
Use passcode z7qCn@3G

The research paper is at
https://arxiv.org/pdf/2006.15263.pdf

Source ARRL Letter November 19, 2020
http://www.arrl.org/arrlletter

DEF CON ham radio talks on YouTube (Southgate ARC)

Talks from the DEF CON event are available on YouTube, they include a number of amateur radio talks from the conference’s Ham Radio Village

Among the amateur radio talks are:
• Talking to Satellites by Eric Escobar KJ6OHH
• The K0BAK News Van by Pete Kobak K0BAK
• Single Board Computers (Raspberry Pi) In Amateur Radio by Typer Gardner KI7ODK
• Ham Radio Snail Mail NTS and the Radiogram Format by Aaron Hulett K8AMH
• Hunting tape measure yagis and offset attenuators by Mark Smith KR6ZY
• APRS Demo by Bryan Lamoreaux KG7OOW

Ham Radio Village Playlist
Click here

Other DEF CON videos are at
https://www.youtube.com/user/DEFCONConference/videosoo


Do you enjoy the SWLing Post?

Please consider supporting us via Patreon or our Coffee Fund!

Your support makes articles like this one possible. Thank you!