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This is about the RadioShow project. If you're interested in the show and its podcasts, you might want to go see the Lët'z Hack page.

Add your Project
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Lët'z Hack! D'Hacker-Emissioun vu syn2cat op Radio ARA
Meetings: on recording day (see respective shows)
Type: media

Status: running
Members: Macfreak109, Mich, Prometheus, Xenplex, Bartek, Azunix, The_metalgamer, Steve, Kwisatz
Contact Person: prometheus (mail)
QrCode: QR-7af88966e1c4e4bc98d594519682420e.png


Lët'z Hack!

A new Co-Producer for the show is needed. Wanna get involved? Either contact us on or get in touch with Prometheus.

Important Stuff

If you contribute to an episode WATCH the page (use the wiki function at the top to get e-mail updates about the page.



Adding a Show? Please use the RadioShow form, name it RadioShowXY and set an accurate topic.
If you're not just yet sure about your show, please add your idea to the topics section first.

ShowTopicBroadcast onPodcast released onRecorded on
RadioShow0aka the Backup Show1 September 2009 00:00:0018 December 2009 19:15:00
RadioShow1syn2cat Hackerspace19 September 2009 13:00:0019 September 2009 14:00:0022 July 2009 19:00:00
RadioShow2What are Hackers3 October 2009 13:00:003 October 2009 14:30:0028 September 2009 17:00:00
RadioShow3A is for Apples. H is for Hacks17 October 2009 13:00:0017 October 2009 15:00:0012 October 2009 17:00:00
RadioShow4Navigating the VX Scene31 October 2009 13:00:001 January 1970 01:00:0028 October 2009 01:00:00
RadioShow5Creative Licensing14 November 2009 13:00:0014 November 2009 17:00:0011 November 2009 16:00:00
RadioShow6Linux, an elo?28 November 2009 13:00:0029 November 2009 20:00:0024 January 2009 20:00:00
RadioShow7Linux an elo richteg.12 December 2009 13:00:009 December 2009 18:00:00
RadioShow8Hacky X-mess, enjoy the Music!26 December 2009 13:00:001 January 2010 02:30:0018 December 2009 19:30:00
RadioShow9Hacking for the English community9 January 2010 13:00:009 January 2010 14:00:0018 December 2009 19:30:00
RadioShow10Internetz Radio23 January 2010 13:00:0023 January 2010 22:34:0021 January 2010 17:00:00
RadioShow11Artists from Luxembourg6 February 2010 13:00:006 February 2010 14:00:0030 January 2010 20:00:00
RadioShow12Cyberwarfare and Inn'terviews20 February 2010 13:00:0020 January 2010 16:00:0018 February 2010 18:00:00
RadioShow13Electronic Jewelry, Clothes et al.6 March 2010 13:00:006 March 2010 14:00:003 March 2010 17:00:00
RadioShow14Welcome, to the World of Tomorooooowwww! (tm)20 March 2010 13:00:0020 March 2010 14:00:0017 March 2010 17:00:00
RadioShow15Free music plattforms on the internetz3 April 2010 13:00:005 April 2010 14:00:00
RadioShow16Mad Mashup17 April 2010 13:00:0019 April 2010 23:20:0015 April 2010 18:00:00
RadioShow17F/LOSS - History and Philosophy1 May 2010 13:00:0028 April 2010 17:00:00
RadioShow18May the Code by with you! (Part I)15 May 2010 13:00:0015 May 2010 19:00:0011 May 2010 18:00:00
RadioShow19May the code be with you! (Part II)29 May 2010 13:00:0029 May 2010 01:00:0028 May 2010 16:00:00
RadioShow20Free Music Mixture12 June 2010 13:00:002 August 2010 08:00:0025 August 2010 23:00:00
RadioShow21Hardware & BIOS26 June 2010 13:00:00
RadioShow22Open Standards & Formats10 July 2010 01:00:002 August 2010 20:00:007 July 2010 19:00:00
RadioShow23HaxoGreen - Live from the studio & camp24 July 2010 13:00:002 August 2010 01:00:0024 July 2010 13:00:00
RadioShow24Social Networks7 August 2010 13:00:007 August 2010 02:00:003 August 2010 18:00:00
RadioShow25Social Networks & Privacy (Part II)21 August 2010 13:00:0021 August 2010 14:00:00
RadioShow26Social Networks & Privacy (Part III)4 September 2010 13:00:004 August 2010 14:00:002 September 2010 20:00:00
RadioShow27syn2cat Hackiversary (sh)18 September 2010 13:00:0026 September 2010 16:00:0013 September 2010 18:00:00
RadioShow28Hacker Movies & Documentaries2 October 2010 13:00:003 October 2010 12:23:0030 September 2010 20:00:00
RadioShow29Free alternatives to proprietary instant and e-mail clients16 October 2010 13:00:0014 October 2010 20:00:00
RadioShow30Wikipedia30 October 2010 01:00:007 November 2010 18:33:0030 October 2010 13:00:00
RadioShow31Encryption in the World Wide Web13 November 2010 13:00:0012 December 2010 19:38:0013 November 2010 13:00:00
RadioShow32Sci-fi27 November 2010 13:00:0011 December 2010 18:40:0027 November 2010 13:00:00
RadioShow33Special: Wikileaks11 December 2010 13:00:0012 December 2010 21:10:0011 December 2010 13:00:00
RadioShow34Special: Wikileaks (Part II)25 December 2010 13:00:0025 December 2010 02:00:00
RadioShow352010 - A Review8 January 2011 13:00:0023 January 2011 15:15:008 January 2011 13:00:00
RadioShow36Geocaching22 January 2011 13:00:005 February 2011 16:00:0022 January 2011 13:00:00
RadioShow37Tablets - An Overview5 February 2011 14:00:005 February 2011 13:00:00
RadioShow38Virtual Identities19 February 2011 13:00:0019 February 2011 15:00:0017 February 2011 19:00:00
RadioShow39For ever FREE Works5 March 2011 13:00:005 March 2011 13:00:00
RadioShow40RobotAra19 March 2011 13:00:0019 March 2011 13:00:00
RadioShow41What's the matter with these codecs anyway?2 April 2011 13:00:002 April 2011 13:00:00
RadioShow424216 April 2011 13:00:007 April 2011 20:00:00
RadioShow43Web of Trust30 April 2011 13:00:0030 April 2011 13:00:00
RadioShow44Music Remix14 May 2011 13:00:0022 May 2011 14:53:0014 May 2011 13:00:00
RadioShow47For the Lulz25 June 2011 13:00:0025 June 2011 13:00:00
RadioShow45Meet the girls9 July 2011 13:00:009 July 2011 13:00:00
RadioShow46F000dhax0ring23 July 2011 13:00:0023 July 2011 13:00:00
RadioShow50Arrrduino Pirates and NOT the Carribeans (Part I)6 August 2011 13:00:006 August 2011 13:00:002 August 2011 20:00:00
RS 51: Arrrrduino (part II)Hackerspace Update & Wifi Painting20 August 2011 13:00:0020 August 2011 13:00:00
… further results

Preparation Meetings

These preparation meetings should be realized by the hosts of the show and this at least 2 times a month, thus a meeting per show. Songs, topics, important news, events and questions should be fixed here for the upcoming shows. It is thought to offer everyone a platform to come in contact with this medium and regulary 'event'.

Next Meeting

Topic: RadioShow43 - Web of Trust


Where: syn2cat Hackerspace

Note: Try to get an interview with persons leading one of their upcoming workshops.



Pool o' Topics

Collect ideas here.


  • Hackers still a subculture, or already integrated in the general culuture?
  • Radio & Communication Technologies (Radio, GPS, Wireless, etc.)
  • Fight of sovereignty on the mobile platforms (Maemo vs. Android vs. iPhone OS 4.0 vs. ?)
  • Arrrduino, Pirates and NOT the Carribeans
  • From where to get reliable information? (News, IT-Security, etc.)
  • Web Of Trust
  • Random (What is it?, etc.)

Shows prob. including guests

  • Luxembourgian Blogosphere, TwittoSphere et al. (Invite bloggers, cf. Kwisatz' crawler graphics)
  • C3L
  • Killerspiele, die Kids laufen Amok (Psychologist, teacher & gamer)
  • G.R.L Luxembourg
  • Hacking Foods
  • Advanced Lighting talks - 3 to 6 shows a year, dedicated to 3 to 5 people talking a few minutes about their topic live in the show, small discussion after every each, music and the next one.

Not assigned yet

  • History of Computers (DIfference Engine, Colossus, ENIAC, etc... [Lovelace!!])
  • hacker Conventions
  • 8-bit, chiptune, festivals
  • Luxemburg, Überwachungsstaat?
  • Theoretical Terror Attacks, .lu centric
  • Lockpicking, the Audible guide
  • Luxi Internet Memes
  • Anti-Virus / Firewall Software
  • Software Patente und Patente im generellen
  • Biometrie
  • Homebrew
  • Cyberwar & Hacktivism [1] [2] [3] [4] [5] [6] (locked)
  • Social Engineering
  • Tools which are used by hackers && Security Papers and books about IT-Security --> splitted show

Getting involved?

If you got a topic that you want to promote by all means, Lët'z Hack! is one of the platform offering you the possibility to do so. Just add the topic to the list and talk to one of the moderators of the show and very soon we'll be on Air together.

Being afraid of the mike and the people listening to the show is okay - everyone already got this feeling, but with the routine it'll disappear. We have the possibilities to do a pre-recording of the show or to do it live on Air - whatever fits you most. Bringing guests is not a problem, neither having a "mobile" interview with them - not in the walls of Radio Ara, but with portable recording devices in the outside world.



Please add only artists, not single albums. In a second step you should then select specific tracks and add them to a show. See RadioShow1 for an example. Please make sure we have the right to play that music. Mail the musicians if you're unsure about the licensing.

Unknown License

MySpace stuff (probably commercial)

More Resources

More Content

Other things we could do include

  • regulary play a song by a luxemburgish artist
  • have people email their favourite electronic songs to radio_AT_hackerspace_DOT_lu
  • interviews with various people and organizations
  • reports from Hacker Conventions
  • interactive call-ins
  • debates

Similar Shows & Radio-Stations

BTW : Gaston Klares is a friend of mine...he's also a great hacker! ;-) --Macfreak109 11:48, 27 June 2009 (UTC)

Preparations - a Guideline

Before the Show

A good preparation on the Topic that will be discussed is of utmost importance as the moderator of the moment will need to ask Questions on the various topics.

Gloomy answers without facts aren't really interesting for the listeners (too complex answers neither, so balance it)

During the show we will need a way of communication. A piece of paper and a black marker are ideal.

Also handy if you want to note something down you don't want to forget.

Write down keywords, NOT entire phrases. Believe us it will only confuse you and you will start stalling and people will notice you read off a sheet of paper.

Mic check

check, check Mic? Dude, is that thing on?

Yep and you've #failed on national radio :)

A few tips about becoming a Radio Star (sorry Eldoradio, if you claim rights on that so be it)


If you speak into a Mic be yourself. Speak normally. Due to the nature of our program you can talk to the moderator as if you would know him for years. No special intonation needed, no grand-ducal form has to be applied, be yourself (or practice)

You don't need to yell at the Mic, with as little as one fist away from it you will be heard loud and clear. Also try and keep the same distance from the Mic at all times (otherwise Leveling your voice will annoy the operator)

Articulation is very important, you can practice this by exaggerating pro-noun-ci-ation but do this during dry runs otherwise you sound like broken speech synthesizer.


Should 'yourself' be: extremely shy or absolutely CRAZYYYY - try and practice in front of a mirror a few line until you get the drill and feel confident enough (have cooled down)


It seems at least one person has to moderate the talkers (think of it as a switch board)

If ALL speak together (full-duplex) #fail will occur.

So everyone needs to wait her turn. But you can time yourself and maybe sync (via eye-contact or paper-sheet) with the current-speaker and add to the coversation. (This is basically where it differs a bit from a regular conversation between pals)

Good practice for moderators

  • try to give a short overview of the topic before your "guests" get into it a little deeper
  • after an information block, it's always good to summarize the things that were said and give a little outlook of what will come next (after the next song, for example)
  • imagine your listeners are blind and have no arms. The only sense they can use is hearing. So you need to guide them trough the rough sea/the labyrinth of information that lies before you. Fortunately, if you are well prepared, you might have a "roter Faden"/map you can hold on to navigate the labyrinth/the rough sea.
  • two person moderation is fun. (A: An dir lauschtert Lët'z hack um Radio ARA op de Frequenzen 103,3 B: an 105,2 an um livestream op But don't overegg the pudding and do it too often.
  • Don't use the same boring phrase over and over. (Dir sidd ageschalt um Radio ARA op de Frequenzen 103,3 an 105,2 an lauschter d'Emissioun Lëtz Hack. An daat do waar ...) Try to mix up these sentences in order to make the show more colorful.
  • However, catchphrases may be fun.
  • Moderation should be personal. Be yourself and not the OMGLIFEISSOAWESOMEANDWEAREPLAYINGONLYTHEGREATESTHITSFORYOU guy of your local commercial station or the we are now listing to a 1824 recording from the London Philharmony Orchestera of Bachs 2nd Symphony state funded social cultural station guy.
  • Don't talk about technical problems too long. Often it's better not to say something than explaining it all. However, if you made a big mistake, you should excuse yourself, blame it on the computer in the studio or the microwaves from the kitchen underneath and carry on.
  • If you already know the topic of the next show, announce it!


Playing relatively unknown songs? Don't just stop at that. Tell a little something about the artist and his song. Where's the artist from? How does he create his music? What year is the song from? Has it inspired any other songs? Has it been on a movie soundtrack? What license does it use? (CC?)

After the Show

Once the show is over make sure you have a Backup of the entire show so we can put it online on our LetzHack page.

Keep in mind that commercial songs will have to be removed from the podcasts though!


If the show needs to be cut, encode it at 256 kb/s with CONSTANT BITRATE, as otherwise Germain cannot properly use his toolset which does not support VBR. The replay gain option calculates the volume for radio transmission (AFAIK). (The recording device in Studio 2 is set to limit the recording to -2.0 dB, so it would be a good idea to amplify the recording to 0dB.)

-$ lame --replaygain-accurate -h -b 256 --cbr in.wav LetzHack_epX_2010mmdd.mp3

When encoding for the podcast: use the artist, title and date flags! (is there a podcast genre now?--Tschew 08:02, 1 October 2009 (UTC))

-$ oggenc in.wav -o LetzHack_epX_2010mmdd_podcast.ogg -d 2010 -a syn<sub>2</sub>cat -t "Lët'z Hack! episode X - title of episode"
-$ lame -V 7 -v -h --ty 2010 --ta syn<sub>2</sub>cat --tt "Lët'z Hack! episode X - title of episode" in.wav LetzHack_epX_2010mmdd_podcast.mp3

You can also use dir2ogg to convert mp3 files to ogg.
Tagging ogg files is a bit of a hassle though:

~$ echo "ARTIST=syn2cat Hackerspace
> ALBUM=LetzHack Radioshow
> TITLE=Let'z Hack episode X - title of episode
> DATE=2010-mm-dd" | vorbiscomment -w in.ogg LetzHack_epX_[date]_podcast.ogg


If you have shell access and the necessary amount of time (otherwise ask somebody else), upload the podcast.

  • Uploading files:
~ # for file in LetzHack_epX_yyyymmdd_podcast.{mp3,ogg}; do scp $file; done
  • Those two files will be automatically imported into the wiki during the next hour. You can then proceed with the following step.
  • Go to the imported files and add the following properties (mind the filetype!) in order for the files to appear in our podcast feeds:
[[Is PodcastFile::true| ]]
[[Is FileType::ogg| ]]
[[Has Topic::<topic of the show>]]
  • Then, add the podcast filenames and release date to the wiki page semantic info of the episode you've just worked on. (use a previous show as your guide for the correct syntax).
  • Finally, clear the cache for the Lët'z Hack page: Clear NOW
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