Details of Live Webcast

SOFTWARE RADIO TECHNOLOGY PLC

('SRT' or the 'Company')

(AIM: SRT)

Live Webcast 7.30 a.m. Wednesday 17 April 2013

The Company announces that SRT will host a live shareholder webcast at 7:30 a.m. (BST) on Wednesday 17 April 2013.

Simon Tucker, CEO of SRT, will host the webcast and provide responses to questions emailed to the Company prior to the event as well as live responses to questions asked by viewers during the webcast.

The webcast can be viewed live by any interested person by following the instructions below.

The format of the live webcast will be as follows:

1. Persons wanting to view the webcast live should go to www.srt-marine.com/investors/corporate-media-centre and scroll down the page to the link "LIVE WEBCAST". This should be done immediately prior to the 7.30 a.m. start time and a simple registration process should be completed.

2. Upon completing the registration process they will be able to watch the webcast live and may if they choose submit questions using the text box on the viewing page for Simon Tucker to answer during the event.

Questions may be submitted prior to the event by emailing them to investor@softwarerad.com. The identity of persons viewing the web cast and or submitting questions will be kept confidential and will not be broadcast.

Shortly after the event an unedited recording of the webcast will be available in the investors section of the SRT website.

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About SRT:

Software Radio Technology plc develops advanced radio communications technologies which are used to create enabling modules and OEM products. SRT Marine Technology Limited focuses on VHF and AIS technologies for use in navigation and homeland security identification and tracking applications. SRT Marine Technology provides its solutions in a variety of module and OEM product formats.