Category Archives: Shortwave Radio

Mark loves his National Panasonic RF-1150 and could use some advice

Many thanks to SWLing Post contributor, Mark Lane, who writes:

Hi Thomas,

I have been reading the SWLing Post for a few years now but hadn’t contacted yourself since I announced my re kindled interest in SW and radio in general when I purchased a Sony ICF2001D a couple of years ago.

Well since then I had also bought a couple of modern travel radios but was hankering after something more retro.

I recently was lucky enough to receive a small bonus from work and thought it was an excellent opportunity to have another hunt for the European version of the Panasonic RF2200.

I had heard so much about this radio and really wanted a good analogue set. However, trying to find one in good condition in the UK was proving difficult to say the least.

Whilst hunting, I did find a radio that peaked my interest. I had not come across it before but was intrigued, initially by the looks and then read up on it a little. The Panasonic RF1150. After a few days of debating I took the plunge and bought one.

I don’t know if any other readers of the Post have or have had this radio but I must say I am very impressed with the MW and deep sound on this radio from the large speaker.

I am no expert, still learning all about radio and I am on the fence about the SW performance, but I did snag a Ham from Barcelona calling for North America on the first night of operation. I did have to work the BFO to keep the signal in check but it was enjoyable. There is something about these old receivers that keeps me listening. I do love my 2001D but it’s nowhere near as much fun as tuning the RF1150.

I just thought I would share the details of my new purchase and also wondered if anyone had any tips on maintaining a radio of this age as this is all new to me. It’s in pretty good shape but there is some crackle from a couple of the pots.

Also there is a switch in the left had side of the radio which I think is to allow input of an external device. The issue I have is that if I so much as knock this switch it turns it from ‘radio’ to ‘phono’ and it is nearly impossible to get it back. Not sure what I can do about that.

Anyway keep up the good work in helping keep radio alive!

All the best.
Mark

Thank you for sharing your find, Mark! The Panasonic RF-1150 is a handsome radio–no wonder it’s such a pleasure to operate!

The feel of tuning the RF-1150, RF-2200, and other solid state radios of that era is simply unmatched. I imagine like the RF-2200, the shortwave tuning experience especially employing the BFO, is a little “loosey-goosey.” Still, it’s incredibly fun and produces the most amazing variable het sounds!

Regarding the sticky pots and radio/phono switch, I suspect this is due to a little oxidization on the contacts. At least, if you wiggle or slightly budge the switch and the audio pops back all of the sudden, that could be the case. A very careful application of contact cleaner may solve your problems.

I have no history with the RF-1150, however, so perhaps readers can comment with their experience and advice!

DUST “Voskhod”: A Sci-Fi short that features ham radio

Many thanks to SWLing Post contributor, Scott Gamble, who shares the following science fiction short film called “Voskhod” by DUST.

The synopsis:

After repairing his HAM radio using parts found in the forest, a recluse radio operator receives a distress call from a stranded Soviet cosmonaut in orbit.

I thoroughly enjoyed this short film. We radio enthusiasts will certainly notice some inaccuracies on the radio side of things–feel free to comment on those–but I suggest you exercise a willing suspension of disbelief and truly enjoy this piece!

Click here to view on YouTube.

Can you identify the National radio model? Please comment!

A Radio Time Machine in “The Twilight Zone”

Photo of Dean Jagger from The Twilight Zone episode Static. Jagger plays Ed Lindsay, a man whose old radio is able to receive radio broadcasts from years past. (Source: Wikipedia)

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

[While] watching some original episodes of The Twilight Zone on Netflix, I discovered the March 10, 1961 episode entitled “Static”. I think you’d especially appreciate it. If you haven’t seen it, do check it out–it’s about a radio time machine!

There’re a couple of radios featured in the show (a big console tube radio and a transistor portable) but I couldn’t identify them. Maybe you or readers of the SWLing Post
can?

https://en.wikipedia.org/wiki/Static_(The_Twilight_Zone)

Spoiler Alert — if you haven’t seen this episode yet, you might want to hold off on reading about it on Wikipedia.

Click here to view on Netflix.

If you don’t have Netflix, you can watch this episode on YouTube in “Standard Definition” for $1.99. They also offer it in “High Definition” for $2.99. Apparently YouTube figured out a how to make a TV time machine that converts 1961 B&W TV broadcasts to HDTV!

Click here to check it out on YouTube.

Thanks so much, Ed!  I have not seen this episode yet, but I will soon! I thought I had seen all of The Twilight Zone episodes (as a kid and not in any particular order), but I don’t recall this one. I’m looking forward to it!

Five solid radios to get you through the pandemic (or any emergency, for that matter)

The original CC Skywave portable radio is among the pricier of my suggestions, but also packs the most features. Seen here on location in Canada.

Over the past four weeks, I’ve gotten a number of emails from first-time readers of the SWLing Post who’ve landed here because they’re searching for a new radio. While not all these readers are necessarily interested in shortwave, what they are interested in is a good, solid battery-powered radio to receive local news on AM and FM.  A few have specifically asked for a radio with NOAA/Environment Canada weather radio reception. Others are looking for a self-powered or hand crank radio option, while some specifically asked for a shortwave radio to listen to international broadcasts. A common point was that no one wanted to spend a lot, inclining toward something cost-effective––understandable in these uncertain times––but they nonetheless are looking for quality, for a radio that won’t fail them, even if their Internet service does.

Radios provide local connection

The following post is my response to these questions. I’ve selected five radios under $90 USD that can fill a variety of needs, and also offer good information support in the event of an emergency. I gave priority to radios that can be powered by common AA batteries––all but one model can be powered by common AA cells. Also, three of the five radios below can receive North American weather radio frequencies.

Note that while many of these models have been chosen with North American readers in mind, there are a number of similar models available in Europe, Asia, and the Pacific that have DAB/DAB+ reception. This list is by no means comprehensive, as there are literally hundreds of similar radios on the market; if you feel I’ve left an ideal radio off this list, please feel free to share your thoughts in the comments section.

Self-Powered Radios: The C. Crane CC Solar Observer ($50)

There are a number of self-powered (hand-crank and/or solar powered) radios on the market. My favorite self-powered radio for receiving local news and weather here in North America is the C. Crane CC Solar Observer.

I like the CC Solar Observer because it’s substantial, well made by a company I trust, and has three different ways to power it (AA batteries/AC adapter, a hand crank, and solar charging). The internal rechargeable battery pack stores energy from the hand crank, solar panel, or AC adapter. In a pinch, this radio can even charge a mobile phone via a supplied USB adapter.

The backlit dial is such a thoughtful design feature: whether the power’s out or you’re just out camping, it’s good to be able to see where you’re tuning in.

And, of course, this radio performs very well, indeed. You’ll be pleased with AM, FM and weather radio reception. Audio is quite respectable via the internal speaker, and the overall build quality is excellent. The CC Solar Observer also sports an LED flashlight, and is, to my knowledge, the only self-powered radio with a very handy backlit dial!

This is not the cheapest in the line-up: new, these retail anywhere from $45 to $60 USD. Still, I think this radio is a very worthwhile investment, and really, the best of the bunch.

Retailers:

Other Options: The Degen DE13 DSP is much smaller, sports the shortwave band, and is less expensive (roughly $25 USD). I also like the Tecsun GR-88, which has a similar form factor to the CC Solar Observer, and also includes the shortwave bands (roughly $55 USD). Negatives for both of these radios is that many are sold from China, which could mean longer-than-normal shipping times, should you need it soon. Also, neither of these models include North American weather radio frequencies.

For more emergency radios, also check out Eton Corporation’s offerings.

Simple Pocket Radios With Built-In Speaker: Sangean SR-35 ($20)

Small form factor ideal for you? I like the Sangean SR-35 because it’s such a simple, easy-to-use radio, is obviously incredibly portable, and produces respectable audio for a pocket radio. (The SR-35 is also a favorite among SWLing Post readers.) The SR-35 sports an 18” telescopic FM antenna and built-in AM antenna. Performance is fantastic for a radio in this price class. If you don’t mind an analog dial and the fact the SR-35 can’t receive North American weather radio frequencies, you’ll love this affordable little pocket radio.

Retailers:

Other Options: Although the Sangean DT-800 is pricier (roughly $55 via Amazon, $79 via Universal Radio) it includes weather radio reception and even weather alerts––click here for my full review. The C. Crane CC Pocket is very similar to the DT-800, and retails for $65 via C. Crane, $60 via Universal, and $65 via Amazon. I’m also a massive fan of the Sony ICF-S10MKII for its AM/FM performance and superb battery life, but unfortunately it’s no longer in production, so your best bet is to look for one on eBay.

Battery Endurance Radios: Sangean DT-160 ($50)

I like the Sangean DT-160 because it’s a respectable AM/FM portable radio that can run on two AA batteries for an impressive 116 hours. I can confirm this because I once tested its clear-case cousin, the DT-160CL. It’s very compact, and sports excellent FM and AM performance that will snag all of your local broadcasters. Unlike some of the other selections on this page, it lacks an internal speaker and North American weather radio frequencies. Still, if you’re looking for a pocket portable with digital display that’s an incredible battery miser, look no further than the Sangean DT-160.

Retailers:

Other Options: I’ve only tested a handful of radios for battery performance. The DT-160 is certainly king in this category, although no doubt there are many analog models that could achieve even better battery longevity. The models that have impressed me the most both in terms of performance and battery life are the Sony SRF-59 and SRF-39FP (clear case). Sadly, neither of these models is still in production, but you can still track down used ones on eBay.

Large Portable Radios: Sangean PR-D4W ($65)

Sangean radios are a favorite among SWLing Post readers because they’re built well and typically perform exactly as they should. In fact, when I mentioned I would be writing this post, several readers immediately suggested the Sangean “PR” series radios, and perhaps my pick of this bunch is the venerable Sangean PR-D4W. I like this particular model because it receives AM, FM and North American weather radio frequencies. It even has a weather alert function. Audio from the built-in speaker is pleasing and operation is very simple. Most functions are available via one-button press. Note that Sangean also produces a PR model for visually-impaired customers that is similar to the PR-D4W, although it lacks weather radio; this is the Sangean PR-D17 (click here to read a full review). The only gripe I have with the PR-D4W (and many of the “PR” series radios) is a lack of carry handle. Unlike the other radios in this list, the PR-D4W requires four “D” cells for battery operation.

Retailers:

Other Options: Click here to check out the full line of Sangean “PR” series radios.

Portable Shortwave Radios: C. Crane CC Skywave ($85)

The C.Crane CC Skywave

The CC Skywave is a brilliant little radio and is certainly time-tested. It’s a fine broadcast receiver and one of the most sensitive travel portables on the market. For those of us living and traveling in North America, the CC Skywave is a veritable “Swiss Army Knife” receiver, as it not only covers AM, FM and shortwave, but is a capable AIR band receiver plus incredibly adept NOAA/Environment Canada weather radio receiver. At $90 USD, I believe it’s the best radio value in the C. Crane product line. Click here to read our full review of the CC Skywave.

Retailers:

Other Options: Although it lacks North American weather radio reception and no AIR band like the CC Skywave, the Tecsun PL-310ET is a time-tested benchmark portable radio. At $48 shipped (via Amazon), it’s a bargain. An even less expensive option is the Retekess V115, at $29.99 shipped, and though its performance is pretty impressive for the price, I prefer the overall quality of the Tecsun and C. Crane better.

Summary

If you’ve found this post because you’re looking for a reliable AM/FM radio, I hope the selections above will give you some guidance. There are so many AM/FM radios on the market, we can’t cover them all.  But these solid radios are time tested, and in my view, among the best; they’re not likely to let you down when you need them most.


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!

Check out the Afedri LAN-IQ SDR: a new stand-alone touch screen SDR

LAN-IQ SDR rev1.0 (Source: Alfredi SDR-Net)

Many thanks to SWLing Post contributor, Dan Robinson, who shares the following video from Fernando Duarte highlighting the new Alfredi LAN-IQ SDR:

I can’t wait to check out Fenu’s full review of the LAN-IQ when it is posted on his excellent website. The screen seems to be very responsive and layout well thought through.

The Afedri website notes the following features and specifications:

  • 30 kHz to 1700.00MHz continuous frequency range
  • Direct sampling
  • DDC – Digital Down-Conversion
  • 12- bit 76.8 MSPS A/D conversion
  • Stand Alone mode (AM, CW, SSB, NFM, WFM stereo, BPSK, QPSK demodulators)
  • Up to 2.2MHz recording and processing bandwidth
  • Waterfall display functions, when used with appropriate software
  • Recording and playback, when used with appropriate software
  • Sensitivity –  MDS -136 dBm at 500Hz bandwidth (0.03MHz-35MHz)
  • Sensitivity –  MDS -143.5 dBm at 500Hz bandwidth (50MHz-435Mhz)
  • USB 2.0 (Full Speed) interface
  • LAN interface for remote access
  • Compatible with: Linrad, Winrad, HDSDR, Studio1,  SDR Console (SDR-radio), CuteSDR, SdrDX, Quisk, PowerSDR_mrx
  • Powered from USB or external power supply 7-10VDC
  • Dimensions 120mm deep x 78mm wide x 27mm high
  • Unit cost – $339

The LAN-IQ can be connected to a PC via USB or Ethernet (at a 2400 kHz sample rate).

The Afedri website also has a few videos of the LAN-IQ in operation:

As you might have noted, the encoder knob seen in Fenu’s video is not standard but can be added at an additional cost and extended lead time. If I were to order the LAN-IQ, I would want the encoder knob as well.

Also, note that due to Covid-19 affecting the supply chain, Afedri SDR informs me that LAN-IQ availability will be adversely affected. If you would like to order a LAN-IQ, contact Afedri SDR via their website.

Click here to check out the LAN-IQ and all specs at Afedri SDR-Net.

Radio Waves: Crossband Test Postponed, VI3RA Event Videos, WWII Radio, and Look Inside a Panasonic RF-4900

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 Harald Kuhl, Michael Bird, and Carel Kuijer for the following tips:


Annual Armed Forces Day Crossband Test Postponed (ARRL News)

Due to the ongoing COVID-19 response and mitigation actions, the 2020 Armed Forces Day (AFD) Crossband Test scheduled for Saturday, May 9, has been postponed. Because it’s uncertain just when stay-at-home orders will be lifted across the US, AFD planners chose to postpone this year’s event, because the government stations that typically support this event may not be available. Armed Forces Day Crossband Test planners are considering scheduling a November event in honor of Veteran’s Day, depending on COVID-19 mitigation actions. During the AFD Crossband Test, military stations in various locations transmit on selected military frequencies and announce the specific ham frequencies they are monitoring to work radio amateurs. — Thanks to US Army MARS Program Chief Paul English, WD8DBY

Radio Australia Event – Antenna Overview (Mount Evelyn DX Report)

Thanks to Lee VK3GK for this short video of the antennas used for the recent Radio Australia event using the call sign VI3RA. Take what will possibly be a final look at the feeders, switching boxes and antennas before they are pulled down and junked!

Also here is the final transmission of the event weekend with, of course, the famous Radio Australia music box interval signal.

Click here to view both videos at the Mt Evelyn DX Report.

World War II and Radio (All Things Radio)

I have added an article I wrote some years back on the code breaking efforts of the Allies during WWII. While certainly not exhaustive, I found many of the connections between countries and equipment rather fascinating, and new things continue to pop up regarding Bletchley Park’s role in training officers and decoding texts. While most famously known for breaking the Enigma code, also significant was the breaking of the Lorenz Cipher.

Click Here to download the article in PDF format.

73, Robert K4PKM

Look Inside This Radio Receiver! The Collectible Panasonic RF 4900 (Mr. Carlson’s Lab – YouTube)

Let’s look inside this Panasonic RF-4900 radio receiver, and see what we have to restore.


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!