TIK Radiodays I - a recap

Radiodays part one took place from the 7th to the 10th of February 2011 in the local hacklab progressbar in Bratislava. We welcomed guests from our partnerorganisations KitchenBudapest, Kronika, Bytom and Yo-yo, Prague to participate in the first part of the Visegrad workshop row.

To the list of participants and a schedule.

The topic was straight technically set and we wanted to explore technical backgrounds of radio production - like what is a transmitter, how does it work, what other materials we can use to make sound with. We put all this work into an ecological context, as this is part of the TIK project altogether.

Two workshops were set up as a framework, in which people could develop ideas about ecologies and radio. Ushi Reiter from servus.at in Linz/Austria was invited for a micro-transmitter soldering workshop. Aim of the workshop was, to get people familiar with the idea, of what a transmitter technically is and how it is set up. The advantage of radio is, that it is such a low-level technology and accessible for everyone.

Park radioPark radio
Kruno Jost from UKE, one of COL-ME's associated partners and co-organizer of our May 2011 event in Croatia, brought a bigger transmitter to get people familiar with the praxis of transmitting on a bigger scale. His event - the free travelling radio was setup as an example in the nearby park, Medicka zahrada. The local park keeper was helping us out with electricity to power up the needed gear.

We talked about the first forms of radio and the easiest and earliest idea of transmitting sound. Unfortunately not built, but sketched out and researched it was probably the most ecological idea so far.

The thing with the ecological approach:
The techniques would be there to guarantee an ecological approach, but unfortunately quite hard to get. So we had to go back to the good old battery.

But a battery is not a battery. Based on the idea of fruit and vegetable batteries, we started like schoolkids in the first class of Physics to put coins and nails into fruits and potatoes and to measure the electricity that comes out of it.
Potatoe powerPotatoe power

This is the first try-out with potatoes. We made it up to nearly 3 Volt with four potatoes cut into pieces. The original plan was, to power up the microtransmitter, that we soldered in the workshop of Ushi Reiter.
The problem of keeping up voltage was apparent and as the potatoe battery went down in power quite fast, we did not try it.

Lemon batteryLemon battery

Another astonishing battery was the lemon battery. Originally we were convinced, that the lemon battery would last longer and give more electricity, than the potatoes but we were horribly disappointed by the fact, that it lost within five minutes already quite some power! Several citron setups didn't change this fact.

Nina doing the fruitbuddhaNina doing the fruitbuddha

The fruitbuddha wasn't too picky about Voltage loss, so it was setup on a mixed fruit plate.

2-comm radio2-comm radio
Another approach to the topic, was to setup radios, that would have a little motor on the frequency search and via sensors to either communicate with each other, or to react on natural influences, like wind, rain or light.
The work is still in progress, as it was a quite complex task, to configure the devices accordingly.

On the last evening we were happy to hear presentations of servus.at and kitchenbudapest and to have the fruitbuddha playing on Radio progressbar with some interviews of bikers passing through our workshop location.
Listen to our Radiostream here

pics and stream
More pictures
Radiostream here