Issue of Equity

SOFTWARE RADIO TECHNOLOGY PLC

(AIM: SRT)

("SRT" or the "Company")

Issue of Equity

The Directors of SRT announce that they have issued and allotted 60,000 new ordinary shares of 0.1p each in the Company (the "New Shares") following the conversion of employee share options in the Company at 18p per share.

Following the issue of the New Shares, there are 127,512,419 ordinary shares of 0.1p of SRT in issue with each share carrying the right to one vote. Application will be made for the New Shares to be admitted to trading on AIM which is expected to occur on 16 September 2015.

ENDS

About SRT:

SRT develops advanced radio communication based marine domain awareness technologies, products and systems. These are customised and provided to a global customer base to meet worldwide market demand to identify and track vessels of all sizes in leisure, commercial and homeland security applications.

About Automatic Identification System (AIS)

AIS is an international maritime tracking and monitoring technology developed and maintained by the ITU under the auspices of the IMO and UN. Since the first global mandate by the IMO on all ocean going vessels over 300GT in 2002, AIS has proliferated worldwide to become the technology of choice to enhance maritime domain awareness: vessel tracking, port and coast security, pollution monitoring, fisheries management.

AIS is a sophisticated real time mesh network technology which uses an intelligent combination of VHF and GPS technologies to provide constantly updated data on the identity and movement of vessels and other marine objects. For further information please visit: www.allaboutais.com