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TV Antennas

September 3, 2012

CTVR is having a TV White Space Event on September 26th in the Science Gallery in Trinity. As most people will know  the switch off of analogue TV has led to opportunities for new services as the transition from analogue to more spectrally efficient digital television has resulted in additional white spaces becoming free.  In Ireland we have not, to date, really focused on this spectrum. Trials that use these TV white spaces have taken place in the UK and the USA and both Ofcom and the FCC have developed regulatory policies for using the bands. [Email to register your interest in attending]

The Filling the White Spaces workshop aims to inform the audience as to these opportunities by sharing the experiences of companies that have already conducted trials in the UK and USA (list of companies at the end of the post). It is about showing what’s out there already and trying to get things moving in Ireland. We will therefore be looking to identify opportunities for Irish exploitation of this new spectrum resource in the context of on-going global developments. We are framing this discussion around three questions —

1. Should we do a set of me-too trials just to get buy-in from the regulator and powers that be?
2. Should we look into new kinds of applications that might be relevant (for example on the Trinity Campus or in the Dublin City Centre) – and do this within FCC/Ofcom rules?
3.  Should we challenge the FCC/Ofcom rules and do something that is less conservative?

There will also be demos during the event.  The companies involved – see list below  – will be doing some – and CTVR will be doing some too. Our CTVR antenna team in DIT have created a special fun antenna for the event. It is an antenna in the shape of a TV (see the picture).  Ok – that is a little obvious.  But it makes me laugh. I am such a nerd.   Mathias John and Antonie Dumolin made the antenna.

In all seriousness the DIT Antenna Team, led by Prof Max Ammann,  are amazing.  They do all sorts of antennas and are particularly great at minaturising wideband antennas. Obviously making small antennas for the TV bands is very desirable given the frequencies. The antenna in the image uses some of their specific optimisaation techniques based on genetic algorithms.  The guys had done a full characteristion of the antenna and even turned up in CTVR headquaerters with polar plots of the antenna radioation pattern etc. I will post a full description of our demo after the event.

The companies which will be presenting at the event have a lot of expertise in the TV White Space and it will be great to hear the practical details of the trials. Hopefully the details will inspire action! BTW THE EVENT IS OPEN TO ALL.  Email to register your interest in attending.

Line up for the event –

Microsoft will present an overview of recent White Space regulatory developments, including highlights from the Cambridge White Spaces Trial. They will also discuss how TV White Spaces could be game-changing for improving broadband penetration and spurring economic development.

Neul is a UK-based company who have developed FCC and Ofcom-certified disruptive technology that uses White Space network which has been specifically designed to be ‘data only’ in order to support the explosive growth of wireless data, including M2M applications. Spectrum Bridge is a US company that offer a unique software platform that manages available bandwidth in real-time for licensed and unlicensed spectrum.

Spectrum Bridge’s ASA-based TV White Space platform was certified by the FCC as the first TV White Spaces database.

Adaptrum is a Silicon Valley based start-up that has developed a FCC-certified TV White Space radio which they have commercially trialled in the US demonstrating how this technology can help bring broadband service to underserved populations.

Fairspectrum is a Finnish company working in the field of spectrum sharing technology. They have recently deployed a TV White Space geolocation database which is used to control the licensing of cognitive radio devices operating in the 470 – 790 MHz frequency range.

  1. Hugh O Donnell permalink

    I am unable to attend the Conference. Will you be posting the presentations on-line?


    Hugh O Donnell

  2. Hugh – yes we will – we will have a dedicated website either tomorrow or wed (2nd or 3rd). I will post a link. Sorry you missed it.

  3. Hugh the details of the event are at

  4. Hugh O Donnell permalink

    Thanks you for the information. Will check the website.

    Again thanks


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