Category Archives: Recordings

Radio Botswana, 1987 Style

No seasoned shortwave DXer can forget one of the most distinctive interval signals ever–the “barnyard animals” which marked the beginning of the broadcast day of Radio Botswana, Gaborone, for decades.

On its long-time frequency of 4820 kHz, Botswana was an occasional catch for me from the Seattle USA area. I yearned for clearer, more reliable reception of this station and other Africans which my East Coast USA DXer pals enjoyed!

Zebras mingle with other animals at Chobe National Park, Botswana.

Zebras mingle with other animals at Chobe National Park, Botswana.

It was always fun–and a DXing challenge–to catch Radio Botswana’s interval signal and sign-on announcements, but it was typically mid winter for reception in Seattle. Propagation on 60 meters needed to be favorable to enjoy anything other than a weak, barely listenable signal. Imagine my surprise and excitement when on the evening of December 27, 1987 I came upon the following signal booming in on 4820 kHz, far, FAR better than any previous Botswana reception. Indeed, their signal that evening surpassed in clarity even the Papua New Guinea and Indonesian “regulars” I would hear on the tropical bands from the Northwest USA.


This recording begins with the famous barnyard animals interval, the beautiful Botswana national anthem (Fatshe leno la rona, or This is Our Land in English) and is followed by a full list of broadcasting frequencies and times in English and the (presumed) Setswana language. That information is followed by a flute instrumental version of the Christian hymn Beautiful Savior, which introduces a short devotional or scripture message. The 10 minute recording wraps up with an a cappella children’s choir.

Great Circle route from the Gaborone transmitter to Seattle receiver location.

Great Circle route from the Gaborone transmitter to Seattle receiver location.

My receiving setup for this 1987 recording was an ICOM IC-R70 and a 300 foot long random wire antenna. Such a long antenna is unusual for the middle of an urban area, but I took advantage of living in a 3rd floor apartment across from a small city park. One midweek day, while most folks were at work, I managed to string out this long antenna with very small diameter braided steel wire from the 3rd floor apartment balcony to a distant treetop. This “sloper” antenna had significant directivity to the northeast, which happens to be the bearing for many African stations heard from the Pacific Northwest USA. The small diameter wire was suspended so high that it was virtually invisible from ground level.

Antenna orientation for 1987 reception of Radio Botswana. I'm sure this urban location is plagued by QRM and radio frequency interference now in 2016! My ICOM IC-R70 receiver handled the strong signals from nearby MW & FM broadcasters surprisingly well with the addition of a Grove Tun3 Mini-tuner preselector.

Antenna orientation for 1987 reception of Radio Botswana. I’m sure this urban location is plagued by QRM and radio frequency interference now in 2016! My ICOM IC-R70 receiver handled the strong signals from nearby MW & FM broadcasters surprisingly well with the addition of a Grove Tun3 Mini-tuner preselector.

I continued to log Radio Botswana occasionally on 60 meters until the station eventually left the air (early 2000s I think), but I never heard them again with such a strong, clear signal as in late December 1987!

Guy Atkins is a Sr. Graphic Designer for T-Mobile and lives near Seattle, Washington.  He’s a regular contributor to the SWLing Post.

Shortwave Radio Recordings: KNLS test transmission circa 1983

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We’ve just posted yet another excellent recording by Tom Laskowski to the Shortwave Radio Audio Archive. I thought a number of Post readers might appreciate this one.

Tom notes:

KNLS – Anchor Point, Alaska, from what I believe is a test transmission on August 1, 1983. According to Wikipedia, KNLS signed on the air July 23, 1983. The program consists of the sign-on ID in English and Russian then is mostly a mix of Big Band music. This recording is 31 minutes long.

Tom’s receiver was a Sony ICF-2001 and he started recording at 09:00 UTC on 11.820 MHz. His location, at the time, was South Bend, Indiana (USA).

Click here to download the recording as an MP3, or simply listen via the embedded player below:

You can listen to more archived shortwave recordings at the SRAA website, or by subscribing to the audio feed via iTunes. You can also listen to the archive on TuneIn radio.

Shortwave Radio Recordings: Radio Netherland’s “What’s New” circa 1976

Paul's 1976 tape reel containing this Radio Netherlands recording. He felt the DeLorean added a touch of time travel.

Paul’s 1976 reel containing this Radio Netherlands recording. He felt the DeLorean added a touch of time travel.

We are fortunate to have a number of active contributors to the Shortwave Radio Audio Archive who have dusted off old magnetic tapes and digitized them for all to enjoy. One such contributor is Paul Harner, who has submitted a number of recordings the past few months. Paul recently submitted a 1976 recording of What’s New from Radio Netherlands.

Paul notes:

Radio Nederland’s “What’s New” was a Saturday night program that featured hits from the weekly Dutch Top 30. The show was co-hosted by American Bruce Parsons and Australian Graham GIll. Based on the charts from that week, this show aired on 6 November 1976. Shows like “What’s New” introduced me to pop/rock artists that didn’t receive airplay in the USA. It also introduced me to other shows on Radio Nederland later on, such as “His And Hers,” “Happy Station,” and especially “Media Network.”

I imagine a number of SWLing Post readers remember listening to What’s NewClick here to download Paul’s 1976 recording, or simply listen via the embedded player below:

Recordings: Paul records Vanuatu and Solomon Islands from central Alaska

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Many thanks to SWLing Post contributor, Paul Walker, who shares the following recordings of Radio Vanuatu and the Solomon Islands Broadcasting. Paul lives in Galena, Alaska, and records most of these broadcasts outside of his broadcasting studio:

7260 kHz:

https://www.youtube.com/watch?v=yAxa5_Oyl3M

5020 kHz:

https://www.youtube.com/watch?v=e9yw6GLy4Zw

5020 kHz:

https://www.youtube.com/watch?v=C9Rd-Whn2pA

3945 is much weaker then 7260 for some reason and Nikkei is on that channel till 0900 UTC, so about the only chance I have of hearing Vanuatu on 3945 CLEARLY is when Nikkei signs off.

9545 kHz Monday Night 1130 AKDT/(0730 utc Tuesday)

https://soundcloud.com/paul-walker-11/9545-april-25-2016-11-21-37-pm

7260 from April 19th at 1135 AKDT /0735 UTC)

http://youtu.be/yAxa5_Oyl3M

5020 from April 20th at 1248 am AKDT/0848 UTC

http://youtu.be/e9yw6GLy4Zw

Thanks for sharing your recordings, Paul! You’ve certainly done a fine job DXing in the northern latitudes all while standing next to a broadcast station.

Keep up the great work!

Curating a list of endangered shortwave stations

RCI-Sackville-2012

That’s my minivan parked in front of the RCI Sackville transmitting station in June, 2012. The site was closed by the end of 2012 and towers demolished shortly thereafter.

Recently, my friend and fellow archivist, London Shortwave, and I engaged in a discussion about creating a curated list of “endangered” shortwave radio stations.

The idea being we could use such a list to focus our efforts and those of the archiving community on recording broadcasters that were most likely to disappear in the near future.

London Shortwave published an excellent post about this on his blog.

Please click here to read his post.

We quickly put this page on the Shortwave Radio Audio Archive as a starting point.

We need your help to curate this list!

Please comment either on London Shortwave’s blog, or on this post, and suggest any additional broadcasters we may have missed. Please include a link to news item(s) which may indicate the broadcaster faces closure.

Of course, this list and the categories are subjective–we’re simply using our best judgement in this process. Often, broadcasters can shut down with little or no notice.

Thanks in advance for your help!

The Icom IC-7300 vs. Elecraft KX3: Which do you prefer for CW/SSB?

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[UPDATE: Read the full review of the IC-7300, along with listener survey results, by clicking here.]

Many thanks to all of you who participated in our last survey comparing the new Icom IC-7300 with the WinRadio Excalibur SDR. We had over 100 responses (!!!)–the results will be posted in the forthcoming IC-7300 review.

Before completing my review, I thought I might fit in one more quick comparison–this time, comparing the Icom IC-7300 to my Elecraft KX3 and focusing on SSB and CW reception.

Recording notes and disclaimers

The Icom IC-7300 offers native digital audio recording, which means that it records both transmitted and received audio to an inserted SD card.

IC-7300The Elecraft KX3 does not have a built-in recorder (indeed, most transceivers do not) thus I made in-line recordings using my Zoom H2N digital recorder.

I did no post-processing of the audio other than converting .wav files to .mp3.

Both receivers shared my large outdoor omni-directional horizontal delta loop antenna for each test.

The Elad ASA15 Antenna Splitter Amplifier

The Elad ASA15 Antenna Splitter Amplifier

To keep the comparison on as equal footing as possible, the receivers shared the same antenna through my Elad ASA15 antenna splitter amplifier. Though the ASA15 has both 12dB amplification and –15dB attenuation, I employed neither.

The ASA15 allowed me to make the following recordings simultaneously.

In each case, I tried to set up both radios using the same filter widths, AGC settings, and (as much as possible), audio level. I didn’t engage a noise-reduction feature on either rig.

I also didn’t employ any type of audio equalization on either rig–still, you’ll note that one radio produces a more “flat” response than the other.

Please vote!

At the end of this post, I have an embedded a survey in which you can vote for the sample recordings you like best. Each recording is clearly labeled to denote that it’s either from “Radio A” or “Radio B” (chosen at random).

And now…here are the recordings:


Audio Clip 1: CW (20 meter band)

Radio A

Radio B


Audio Clip 2: Weak Signal CW (20 meter band)

Radio A

Rado B


Audio Clip 3: Weak/Strong SSB
(Sable Island working Asia/Pacific on 20 meter band)

Radio A

Radio B


We want to hear from you!

Use the form below to vote for the recordings you prefer in each section.

I’ll close voting at 12:00 UTC on Wednesday April 27, 2016. Thank you in advance for your participation in this survey!

Pirate Radio Recordings: Radio Casablanca

Poster - Casablanca_13

Last night at about 00:10 UTC, I was pleased to hear the interval signal of one of my favorite pirate radio stations: Radio Casablanca.

“Rick Blaine” fired up his AM transmitter and pumped out some amazing WWII era music on 6,940 kHz for about one hour and a half. Radio Casablanca only pops up a few times a year, so I always feel fortunate to grab the broadcast (click here to listen to previous recordings).

Signal strength varied over the course of the broadcast and the bands were quite noisy–still, the Casablanca signal punched through quite well at times.

Close your eyes and imagine what it must have been like to hear the great bands of the era over the shortwaves…

Click here to download an MP3 of the full recording, or simply listen via the embedded player below. Note that the interval signal starts around 01:25: