Category Archives: Shortwave Radio

Guest Post: More Anti-Noise Ideas

In a previous guest post, SWLing Post contributor TomL, shared his “Evolving, Morphing, SW Listening Station” where he detailed the many ways he’s trying to fight heavy radio interference at his listening post. The following post is TomL’s update:

More Anti-Noise Ideas

(Continuing the hunt for better reception in a foul RFI environment)

by TomL


I have made the following changes:

  • Created a prototype mini-loop based on a crossed-parallel idea from VE1ZAC (Jeff).
  • Added a balun from LNR Precision (Parfitt’s EF-SWL) in an experimental configuration.
  • Added to the balun, an outdoor amplifier – Wellbrook ALA-100M.
  • Added a noise canceling unit (MFJ-1026).
  • Added 2 preselectors, an old Grove TUN-3 connected to the main loop feed and an MFJ-1046 connected to the ground connection of the balun. Both feeds go into the MFJ-1026.
  • Added BHI Compact In-Line DSP filter and two switch boxes to cut it in/out as needed.
  • Added a medium wave noise canceling unit that I have not figured out how to use yet. (Quantum Phaser). The MFJ unit does not work on medium wave without modification.
  • Purchased from eBay a used Grundig Satellit 800, a somewhat more robust fixed-station receiver to replace my aging Sony ICF-2010.
  • Other non-related (not shown): Whistler digital scanner + UHF over-the-air TV + FM broadcasts + an AM/FM HD digital radio + high pass filters from – (audio from all these sources is passed to an existing high fidelity stereo power amp and NHT Super One speakers on the computer desk for near-field monitoring). Associated antennas are also hidden on the outside deck (shhhhh!).
  • Large charge card balance!!

So, here are some pics for the crossed-parallel loop. VE1ZAC web site has all the references if you want to explore further or google him. Mine is purely a prototype and not finished. And should eventually be placed on a rotor (but how to keep my Nazi-like condo association from finding out?!?!?!?).


It is three 14 inch quilters hoops from Joann Stores plus some 1-inch copper strips cut from a small 2 meter roll of thin copper from eBay. Then, it is wired in parallel with silver-plated aviation wire on each side with a feed in the middle. Not an optimal placement of the feed, (should go straight down along the pipe). Will fix things up whenever I get some more time.


Seems to be an efficient way to prototype small loops. It is now mounted on a short ¾” inside diameter PVC pipe into a cheap plastic sand-filled deck-umbrella stand. Loops are light and somewhat flimsy, so I mounted the three loops on a plastic triangle ruler and dowel sticks glued to the sides for some extra strength. Good enough for now.

The EF-SWL balun is also in an experimental configuration. Since I read somewhere that loop antennas have a very low impedance at the feed point (like, 10 ohms or lower), I thought I might try a balun that is meant to lower the impedance and mount it backwards. I don’t have a picture of it but the SO-239 output is facing the loop and the screw terminals are facing the direction of the radio. My feeble brain thinks since it is a passive device of coils on ferrite, it should work bidirectionally for receive only applications like this. It seems to work but I have the excuse that I really don’t know what I am doing! 🙂


BHI unit in action.

The BHI DSP filter is useful in some circumstances but I find it fatiguing to listen to. The audio from the Sattelit 800 is so nice, I mostly like it without the DSP. The DSP narrows the bandwidth significantly, somewhere around 4 kHz or less from my hearing. I like that the Grundig has two tone controls. And it also has a stable SSB and on very strong signals with clear audio, I like to listen with SSB lower or upper sideband. But the DSP is useful at times for hash-like noisy signals; it is not quite as good on buzzing noise and I wish the Satellit 800 had a noise blanker, but that would have been a more costly purchase, like a Drake R8A.

So, in a nutshell, I have a discovery about noise here: it is all around me and ubiquitous, like the air I breathe!

I find it hard to null and also worry about peaking a station signal at the same time. However, I do have a lower noise floor with the experimental loop sitting outdoors, especially on medium wave (the Wellbrook amp + loop works great on the lower frequencies – am able to get eight different medium wave stations carrying Major League Baseball games at night – it would be nine to get WFAN for the New York Mets but the local Chicago Cubs station covers the adjacent frequency with horrible digital hash! ***Bleeping*** digital junk!).

Also, the signal level is noticeably lower using the loop. Then, add in the effect of the MFJ Noise Canceling unit, the usable signal gets even weaker.

The bottom line is, I can now finally enjoy listening to many SW broadcasts, BUT only the strongest signals. Anything else is still hopelessly lost in the noise. So, gains are limited.

On the other hand, and something else I learned by doing is that, any 1 or 2 dB signal/noise ratio improvement will help with the final audio output in the end product. Using low-noise amps, loops, noise canceler, preselectors, grounded connections, ground isolators at the input of every receiver, high quality stereo amplifier and speakers, tone controls, SSB vs. AM Sync, weird antenna configurations, etc, etc. It all helps in the end to some degree.

Tinkering is an art that involves a lot of thinking/doing iterations! And high quality parts must be used all along the chain or it could degrade the signal.

Below are some audio samples, not very well recorded, but can give some idea of the incremental improvement with each enhancement (turn up the volume). NOTE: other people may get better or worse results depending upon individual situations, type of antennas used, etc, etc.

Recording 1: R. Marti. First 10 seconds an indoor antenna with no noise reduction, second 10 seconds the outdoor loop without the MFJ-1026, the third 10 seconds with the MFJ-1026, then switched off and on to hear the difference.

Recording 2: R. Marti. MFJ -1026 is ON. Last 15 seconds is SSB, very thin sounding. Really only good for strongest signals. I liked the AM Sync better (Satellit 800 is really a Drake SW8 in disguise with a quality AM Sync). But, SSB can sound excellent with very clear voices with a steady and strong signal (The Satellit 800 does NOT have IF-shift or a BFO to fine tune an SSB reception, so the station must be exactly transmitting on the kHz mark, which most are nowadays).

Recording 3: R. Marti. MFJ-1026 is ON. Last 20 seconds you hear me switch in the two audio switches and the BHI DSP is on its lowest setting. Narrower and clearer with some reduction of background noise. I find I only like going up to about 4 on the DSP dial, after that the audio fidelity starts getting more choppy with digital artifacts that sound like dripping water. I tend to like higher fidelity. One nice thing about the BHI DSP is a faux-stereo that helps a little with voice intelligibility by helping the brain naturally filter the noise. Faux-stereo is ON even when the noise reduction circuit is manually turned off (power must be on and bandwidth still sounds narrowed).

Recording 4: R. Nacional Brazilia. First without MFJ-1026, then ON, then OFF, then ON, then with the BHI kicked for the last 20 seconds.

Recording 5: Greece. Switching the MFJ-1026 on and off every 5 seconds. In this particular case, the signal was weak and fading a lot. The MFJ OFF was also weaker than with it turned ON. That is interesting behavior, usually it is opposite. It pays to play with the settings a little. At other times, and less frequently, the MFJ unit turned OFF sometimes sounds better than with it ON and tuned for less noise. Go figure!

After all the tweaking is done, and I cannot get any more performance out of this, I will probably have to move to a nice, quiet neighborhood and setup a nice antenna farm!!

In the meantime, I do enjoy listening to the stronger stations from North America, Cuba, Brazil, Europe, and Australia with less noise than before.


TomL from NOIZEY Illinoiz

Once again, Tom, thanks for sharing your RFI elimination journey!

I love how you take on this noisy problem by experimenting and seeing it more as a challenge than an obstacle to enjoying your hobby.  Great job! 

Video: Five shortwave stations in two minutes

danh-sangean-ats-909xMany thanks to SWLing Post contributor, DanH, who shares the following feedback.

Note that he sent this to me about two weeks ago, but my life has been so busy the past few weeks, I’m still catching up on email. Thanks to everyone for understanding!

DanH writes:

We all know how hard it is to get good SW reception without a decent antenna at this point in the 11-year solar cycle. But, the past couple of days have offered good propagation conditions for reception here in Northern California. Here is a video I made this evening during the 8:00 p.m. hour, 10-11-2016 PDT (0300 hour, 10-12-2016 UTC). It isn’t all that bad. Here are five stations in under two minutes (but really, WWV doesn’t count). There is plenty to listen to. Voice of Greece is in the Greek language with great music. The other stations are broadcast in the English language.

Click here to view on YouTube.

Thank you for sharing, Dan! Wow–RNZI is quite a strong catch at your location! It’s so nice when conditions improve and that elusive DX pops out of the niose. At this point in the solar cycle, we just take what we can get!

Only last night, I was amazed with the Voice of Greece here on the east coast. Even as propagation conditions deteriorated, VOG held on at S9 +20db via my Elecraft KX3.

eBay find: Panasonic RF-8000


Many thanks to SWLing Post reader, Armin Sander, who writes:

Here is a link to a very interesting auction on eBay Germany:

Click here to view on eBay.

Only the price speaks for itself! (And now I need a good whisky!) 😉

No kidding, Armin!  That is a hefty price–8,9999 EUR–even though this particular unit seems to be in excellent shape.

Still, I love looking looking at the photos of this classy receiver.



Thanks for sharing, Armin!

Post readers: Anyone own a Panasonic RF-8000?  Please comment!

Internet Radio: Mark wants to know about your listening habits!


Many thanks to SWLing Post contributor, Mark Fahey, who shares the following reply to our Como Audio Solo review:

I am a heavy user of internet radios and have a few scatted around the home, the one most frequently used is the Grace in the kitchen. What stations do people listen to?

I listen to lots of different things while cooking, what I do is tune to a station local to whatever I am preparing. So that means a lot of Asian stations; Indonesia, Vietnam, India, Japan, China, Laos etc! A few months ago spending time in Southern California put me in the mood for Mexican food, so there has been a lot of Mexican radio playing in the kitchen lately. On the special occasions when cooking Grits for breakfast I usually listen to 103.3 AshevilleFM.

[Note to Mark: I’d like to think I have something to do with the fact you’re one of the only guys cooking grits in Australia! -Thomas]

The Logitech in the bedroom is usually tuned into European stations late a night as I drift off, and as I wake up and dress I’m usually listening to Japanese community radio stations.

In the main living area mostly USA alternative and indi rock, NPR or college radio is on.

I am a very serious flight-simmer and love exploring around the world this virtual way. I’m very serious about this so preflight and route planning takes up to an hour, so in the hours before a flight I quite typically listen to a station in the city my Cessna-404 twin turbo happens to be at that particular time.

I’m kind of interested – what are you guys listening to on internet radios?

PS. Oh and the Como Solo looks great – Im ordering one!

Your query is timely, Mark, as someone recently asked me the same question.

The Sangean WFR-28 WiFi Radio

The Sangean WFR-28 WiFi Radio

I primarily use Internet radio to listen to music and local news outlets.

In terms of music, I love almost everything, but especially Jazz, Classic Rock, Big Band, Brazilian music, French, Mambo, Zydeco, Electronica, and, frankly, anything a little eclectic and musically interesting.

Some of my favorite music stations are: The UK 1940s Radio Station, RFI Musique, FIP, Radio Bossa Nova, KBON, Espace Musique (various outlets), CBC Ambient Lounge, Kanal Jazz, Radio Swiss Jazz, WNMB, RadioNostalgia, Celtic Music Radio 1530, WNCW, Radio 6 and Fréquence 2 to name a few.

In terms of news and talk, I listen to: CBC Radio 1 (Toronto, Montreal, St. Johns, Charlottetown), WFAE, WCQS, Alaska Public Media, Vermont Public Radio, France Inter, Radio Canada, ABC Radio Australia, ABC Northern Tasmania, Radio New Zealand National, BBC World Service, 7RPH, Federal News Radio, ABC Radio Perth and many, many more.

I especially love finding some random, local radio station and eavesdropping on their community news!

I have well over 100 stations/favorites organized in various folders on my WiFi radios.

Honestly, this 2016 election season in the States has so heavily dominated domestic news, I’ve focused almost exclusively on stations outside of the US to seek a little refuge.

Of course, I’m also a heavy shortwave listener. While using a WiFi radio lacks the “fun factor” and skill of SWLing, it certainly serves up a world of diversity and is the perfect compliment to shortwave listening.


Radio Australia serving up a blowtorch signal into North America this morning–a steady S9+20db on my Elecraft KX3.

As I type this post this morning, for example, I’ve been listening to the CBC and France Inter on my WiFi radio (the audio actually emanates from my vintage Scott Marine SLR-M via an SStran AM transmitter). I’ve been muting the WiFi radio from time to time to listen to the ABC top of the hour news and music programming on Radio Australia with my Elecraft KX3 (above).

Now…back to Mark’s question…

What do you, dear Post reader, listen to on your WiFi radio, mobile device or computer? Please comment!

Future of Radio Netherlands Archive Material

(Source: PCJ Media Press Release)

pcjOver the past few months PCJ Radio International has been contacted by a number of individuals concerning what is PCJ’s plans with the Radio Netherlands archive material that is now in our possession.

Hopefully this will answer some of the questions.

First question: Will PCJ create a website where the programs will be available for download?

Short answer is yes. Clips of various Radio Netherlands programs from 1947 to 1997 will be available.

Second question: Why will only clips be made available for download?

The answer to this is simple. Over the last year PCJ Radio International has been very active to remove youtube videos of Radio Netherlands material that is now our property. By having this material uploaded onto youtube the value of the archive diminishes.

The other reason is 8 months ago we had to bring action against an ebay seller who was selling a CD of Radio Netherlands material that is now the property of PCJ Radio International. We are well aware that if the archives are made available online there is a risk this will happen.

Third question: Will anyone be able to access the full archive of material?

Yes. The Nederlands Instituut voor Beeld en Geluid (Netherlands Institute for Sound & Vision) in Hilversum, Netherlands will be able to request material for their own research. Those who are doing research will also be able to access the material.

Fourth question: Will concerts, radio shows, and printed material be available for license by second parties?

If audio, visual or printed items will be used for commercial purposes, there will be a licensing fee. The fee will depend on the item.

Fifth question: What will happen if anyone publishes material from the archives without written consent or licensing from PCJ Radio International?

A cease and desist letter will be sent, and the individual or organization will have 14 days after a written warning to remove the copyrighted material. If after 14 days the material has still not been removed, PCJ Radio International will have no recourse but to take legal action.

Sixth question: Why is PCJ Radio International being so controlling of the material?

It has to do with cost. There is the cost of the shipping container, climate control room for the tapes, discs and films, and a full time staffer whose job it is to catalogue the tapes, discs and films. The most expensive cost is the digitizing of the films. Some of these films are 40 years old and need to be sent to a special lab for colour correction and to make any repairs necessary before they can be copied. Just to give you an example, the cost for one 25 minute film can be between 300 to 500 Euros, depending on the condition.

PCJ Radio International’s series From The Radio Netherlands Archives over the next few months will present some of the best programs from the collection.

For more information please contact PCJ Radio International at anytime: