BCL Audio Clips in Puerto Rico

Received in Puerto Rico – Central America during my bisuness trip in May 2018.


This time Medium Wave only, as Shortwave was not in a good condition.


Local Stations !



The following is a light DXing…

Reception Data:

Received in San Juan, PR.

WIPR 940kHz 1-May-2018 0000UTC (Local 8:00PM)
WSKN 1320kHz  1-May-2018 0000UTC (Local 8:00PM)
WGIT 1660kHz  1-May-2018 0000UTC (Local 8:00PM)
WBMJ 1190kHz  1-May-2018 0000UTC (Local 8:00PM)
WUNO 630kHz  1-May-2018 0900UTC (Local 5:00AM)
WPAB 550kHz  1-May-2018 0859UTC (Local 4:59AM)
WIAC 740kHz  30-Apr-2018 2359UTC (Local 7:59PM)
WCMA 1600kHz  1-May-2018 0000UTC (Local 8:00PM)


Radio ABC 540kHz   1-May-2018 0959UTC (Local 5:59AM)
ZBVI 780kHz   1-May-2018 0959UTC (Local 5:59AM)
National Voice of Bahamas 1540kHz  1-May-2018 1000UTC (Local 6:00AM)


Language: Spanish, English
Receiver:  Microtelecom Perseus
Antenna:  Small Loop with BCL-LOOP Ver. 13 amplifier (at hotel balcony).


SWL/BCL Audio Clips in India

Received in Mumbai, India during my bisuness trip in April 2018.

All India Radio Asmita Channel  558kHz  18-Apr-2018  2355UTC (local time 05:25AM).
All India Radio Samvadita  1044kHz 16-Apr-2018  1630UTC (local time 10:00PM).
All India Radio Vividh Bharati  1188kHz  19-Apr-2018  0029UTC (local time 05:59AM).
All India Radio West Panaji  1287kHz  17-Apr-2018  1701UTC (local time 10:31PM).
Trans World Radio India  882kHz  18-Apr-2018  0000UTC (local time 05:30AM).
Sri Lanka Broadcasting Corp. 11905kHz  19-Apr-2018  0229UTC (local time 07:59AM).
Bangladesh Betar 7250kHz  18-Apr-2018  1636UTC (local 10:06PM).

Language: Hindy, English
Receiver:  Microtelecom Perseus
Antenna:  Small loop with BCL-LOOP Ver. 13 amplifier (Indoor).

12050kHz (Radio “International” ?)

This is about a broadcasting on 12050kHz at 1800-2100 UTC.  According to public information, this is supposed to be Radio Dandal Kura International or Radio Ndarason International (likely the former, due to imcompletion of their organization change), which is transmitted via Ascension.

Recently I listened to this broadcasting, which was well received in Japan with a good signal in early morning, possibly due to the grayline pass.   In the broadcasting, I encountered a program in English, which is produced by “Multi-National Joint Task Force (MNJTF)”

12050 kHz. Received in Niigata, Japan.
02-April-2018, 1916 UTC (4:16 AM Local Time)   Language: English
Receiver: KiwiSDR   Antenna: Pro-1B Loop

After this program, I noticed something like a station jingle in a local language (perhaps Kanuri), saying many times “Radio International” but somehow I don’t hear any  word such as Dandal Kura or Ndarason.

12050 kHz. Received in Niigata, Japan.
02-April-2018, 1944 UTC (4:44 AM Local Time)   Language: Local (Kanuri?)
Receiver: KiwiSDR   Antenna: Pro-1B Loop

Yesterday, I checked the opening of the broadcast through a KiwiSDR in Sweden, and heard a starting program in which the language is likely French.  In this program the announcer also keeps saying “Radio International(e).”

12050 kHz. Received in Sweden.
06-April-2018, 1759 UTC       Language: French?
Receiver: KiwiSDR 

I thought I had to use remote SDR in Europe at this time, but surprisingly the signal was super strong in Japan as well.

12050 kHz. Received in Niigata, Japan.
06-April-2018, 1812 UTC (3:12 AM Local Time)   Language: French?
Receiver: KiwiSDR   Antenna: Pro-1B Loop

Is this “Radio International(e)” thier official name?   I would appreciate any assistance from French-speaking listeners.

BCL-LOOP Version 13

Hokushin Denshi(Electronics) Service in Japan has developed a newest version of BCL-LOOP amplifier (BCL-LOOP Version 13, Rev. 2.0).  This uses 2N5109s and works at power voltage from 5V to 15V  (the voltage actually affects the gain).

This time they supply only PCB so I purchased the parts and assembled by myself.


For the loop element, I used a dual cupper tube for air-conditioner which I found at a home-center (like Home Depot) in Japan.



Pixel RF-Pro-1B, for comparison.  (The supplier of this antenna has been changed to DX Enginnering from Pixel Technologies)



HF Span Video (initial 10 seconds with Pro-1B, then switched to BCL-Loop 13)


Radio New Zealand International on 9765kHz.  The SN ratio was not different, but BCL-Loop showed a lower noise base line.

“BCL Day” (December 17th)

In my home country Japan, December 17th is “BCL Day,” which is unofficially, but widely recognized among shortwave fans in Japan.

BCL” stands for Broadcasting Listening/Listener, and this word is typically used in Japan rather instead of SWL.   I have no idea who created this word.

December 17th was set as BCL Day since this is the birthday of late Mr. Koji Yamada, who significantly contributed to the shortwave listening boom in Japan during mid 1970’s through early 80’s.  Huge numbers of young people (mostly junior high school students, including myself) in Japan at that time were listening to shortwave everyday, wrote reception reports to get “Veri-Cards.”  Uniquely, the word “Veri-Card” (“Veri” comes from “Verification”) is used in Japan, still now, which means QSL card.   Again, I have no idea who created this word.

Mr. Yamada published so many books on BCL, monthly contributed radio magazines for young people, and spoke at many events and broadcasting.  He is called like “Maestro of BCL” (actually, in Japanese language we use a word meaning “BCL God” for him, but it may not be a proper word when coming into English) .  Sadly, he passed away by liver cancer in August 2008.  Radio stations such as KBS World Radio, Radio Taiwan International, and Voice of Russia broadcast his special tribute program.  Even now, some stations have memorial program around this date, such as HCJB Japanese program (Reach Beyond Australia) issuing the following QSL card:


(Cortesy of Mr. Ozaki, Reach Beyond Australia)


This QSL card (Veri-Card) shows Mr. Yamada’s photos when he was at a radio event show in 1977.

Last week on December 9th, HCJB-Japanese broadcast a memorial program of him and played a recorded sound clip of “SONY BCL JOCKEY,” a daily program for shortwave listeners at that time, when Mr. Yamada was interviewed.  The host of this program was a famous anime voice-actor Kei Tomiyama (he also passed away in 1995).   Here is its opening of the program, including a commercial of Sony Skysensor Radio:

(Cortesy of Mr. Ozaki, Reach Beyond Australia)


The following sound clip is a commercial of National (currently Panasonic) COUGAR 2200 Radio in a different radio program.  It is in Japanese, but you know this interval signal!

(Cortesy of Mr. Ozaki, Reach Beyond Australia)


In November, I visited Mr. Kazuo Ozaki, the host of HCJB-Japanese program (the middle gentleman in the above QSL card) in his home studio in Arizona.  I used to listen to his broadcasting from Quito Ecuador over 40 years ago, and this time face-to-face.  He is still active in creating his program at his home studio, which is transmitted from Australia to Japan on shortwave every weekend.   The BCL boom in Japan at that time significantly affected personal lives of many people, including myself who lives in USA now.


Tokyo Ham Fair 2017

September 2-3, 2017 at Tokyo Big Sight….



Preparing the booth of Japan Shortwave Club.

Booth Preparation


Show starts!





JT65 lovers.



Magnetic loop antennas…







Icom’s prototype model IC-9700, which is a tribander of 2m-70cm-1.2GHz.



Japan Shortwave Club Booth




Another SWL booth “BCL is the King of Hobby” hosted by Asuka Sekiyama.  He organizes “Akihabara BCL Club” (ABC) and has issued its first publication journal “ABC 50’s,” where I also contributed a chapter.










A D-STAR Booth


Another D-STAR booth.



ID-31s are now Plus model.






Perhaps a unique point in the Tokyo Ham Fair is that many singers and personalities contribute the show.  They are of course hams.

JARD promotes “e-Learning” system to obtain an operator license.  Presentation given by Momoka Matsuda (actess, JI1NYO).




Live show of Masaco (singer-songwriter, JH1CBX) and Kaori Mita (traditional singer, JI1BTL).  Kaori also hosts a radio program “CQ Ham For Girls” in a local FM station.



Chanson singer Sayoko Aoki (JJ3WWS).  She also used to be a radio personality for such as long-run program “FM Variety,” as well as some radio shows for hams.



“Theme-song singer” Maiko Watabe (JJØSDQ) singing a theme song of a radio program for hams, with a dancing costume character Watamai-chan, who has just obtained (surprisingly) a callsign of JJ1FUL.




See you all again next year!


“Propagation” Ed. 5 Released!

This year too, Totsuka DXer’s Circle (TDXC), a local SWL/DXing club in Yokohama Japan, has published a 157-page club journal “PROPAGATION.”    This is the 5th edition as TDXC previously published once per year since 2013.  The journal is now downloadable in PDF format for FREE to everybody!   Please be advised that this journal is written in Japanese in most pages, but there are so many pictures that give you idea how they enjoy the hobby.  Some pages are also written in English.

The follwoing contents are just a part of this year’s edition.

  • US-JA joint DX-pedition to Oregon Cliff
  • Radio tour to Lima, Peru
  • Equipment and camping goods for MW DX-pedition
  • Visit report of local communty FM stations
  • Detailed report on Flag Antenna
  • Test reports on small loops and bar antenna for MW DXing
  • Old-day DXing life
  • Each club member’s unique DXing activity

If you are interested in the “PROPAGATION” journal, visit the following site to download.