Category Archives: What’s On Shortwave

VOA Radiogram this weekend

Shortwave Radio Recordings: Radio New Zealand International

The New Zealand Bellbird (Anthornis melanura) provides the interval signal for RNZI (Photo: Wikimedia Commons)

One of my favorite shortwave radio broadcasters is Radio New Zealand International. RNZI has authoritative news–with a focus on NZ and the Pacific islands–music, sports and their own unique character, though they operate on a very modest budget by international broadcasting standards.

The RNZI interval signal is charming and unmistakable: the call of the New Zealand Bellbird.

Fortunately, in the 3 hour recording of RNZI below, I caught not only the interval signal as the broadcast began, but also as it went off the air. This recording was made on March 14th 2013 starting around 8:00 UTC on 9,765 kHz. (You’ll note news of the Pope.)

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

Note to SWLing Post reader, Mike:
I hope you enjoy these sounds from home!

Shortwave Radio Recordings: Alcaravan Radio

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The Alcaravan Radio transmitter site is located south of Bogata.

The Alcaravan Radio transmitter site is located SSW of Bogata in Puerto Lleras.

On March 19th, I was able to record a particularly strong signal from Alcaravan Radio out of Puerto Lleras, Columbia. Alcaravan Radio broadcasts domestically on medium wave and also on 5.91 MHZ shortwave, from 23:30-12:00 UTC.

I have seen their output power listed anywhere from 1,000 – 5,000 watts; a puny amount by international standards, but more than enough to cover their target area of Columbia.

There are very few details about Alcaravan Radio on the Internet. If anyone can add more details about this station, feel free to comment below.

This is a four hour recording and contains about three hours of music.

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

Pirate Radio Recordings: Radio Ronin Shortwave

Pirate Radio Recordings: All Along The Watchtower Radio

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One short pirate broadcast I caught last night was All Along The Watchtower Radio.

AATW Radio’s USB signal on 6.955 MHz started around 00:24 UTC (23 March 2013).

The (robo voice) host, Alex Jobs, played a great mix of music starting with a version of Video Killed the Radio Star by The Presidents of the United States of America. It actually sounded pretty good in upper side band!

Hear for yourself! Click here to download the MP3 recording of the full broadcast, or simply listen via the embedded player below:

“Mom, could that be The Presidents of The United States of America? How patriotic!”

Rijmenants’ paper sheds light on Cuban numbers stations

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I’m always amazed by the remarkable talents and extraordinary knowledge of SWLing Post readers. Dirk Rijmenants recently commented on one of our Cuban spy numbers station postings:

[T]hanks for your work on this fascinating blog.

I have additional information on how and who used these Cuban numbers stations. I composed a paper based on FBI and court documents. “Cuban Agent Communications” can by found in the Papers section of my website.

Here’s the direct link (pdf):
https://www.ciphermachinesandcryptology.com/papers/cuban_agent_communications.pdf

Have fun reading!

Dirk Rijmenants
Cipher Machines & Cryptology

I’ve read Dirk’s paper, which does, indeed, shed light on the process of receiving and decoding numbers. Most of all, it exposes the vulnerability and fallacy of using anything other than one-time decryption keys and single-use pads. Why? Most of what the FBI has learned about Cuban numbers came from laptops that were used to help decrypt coded messages–an unnecessary procedure when numbers can simply be decoded on note pads that can then be burnt or destroyed.

But don’t take my word for it–download and read Dirk’s paper “Cuban Agent Communications” by clicking here. Also, be sure to check out Dirk’s blog and cryptology website; I’ve bookmarked both.

Thanks for sharing your findings, Dirk!