Advanced Communications Technologies -- Alliance with Lockheed Martin/Tenix Subsidiary RLM Systems.

Business Editors/High-Tech Writers

LOS ANGELES--(BUSINESS WIRE)--June 21, 2001

Advanced Communications Technologies Inc (OTCBB:ADVC) (ACT-US) today announced that its Australian based affiliate Advanced Communications Technologies (Australia) Pty Ltd (ACT-Australia) had finalized an initial agreement to form a strategic business alliance with RLM Systems Pty Ltd (RLM), a joint venture owned by Lockheed Martin (NYSE:LMT) and Tenix Australia Pty Ltd, on the 20th June, 2001. The alliance initially provides for ACT-Australia to utilize a large number of RLM's highly skilled engineers to accelerate the completion of the commercial model of ACT's SpectruCell multiple protocol wireless base station technology.

The first phase of this significant strategic alliance provides for RLM to assign the services of up to 40 engineers to the SpectruCell project with that number increasing progressively up to as many as 300 engineers during the next 18 to 24 months. The commitment of the additional resources envisaged by the alliance will enable ACT-Australia and RLM to jointly finalize the development of ACT's SpectruCell technology in order to bring the multiple protocol base station production model to market in a more efficient time frame.

Due to the sensitivity and complexity of the potential scope of the alliance, full details will be announced as specific terms and conditions for each phase are completed.

About Advanced Communications Technologies

Advanced Communications Technologies Inc. (OTCBB:ADVC) is a leader in the field of Software Defined Radio (SDR) that in conjunction with its Australian based affiliate has developed a proprietary, multiple-protocol wireless base station -- SpectruCell. Through eliminating the use of Qualcomm (Nasdaq:QCOM) chipsets, protocol specific hardware and by conducting all signal processing in software, SpectruCell provides for simultaneous support of multiple mobile communications protocols (CDMA, WCDMA, UMTS, GSM & 3G) all in the same base station. Support for additional protocols is achieved through the uploading of additional software modules. By implementing the company's SpectruCell technology, network providers will be able to maintain service to their existing customer base and preserve the full utilization of their existing network infrastructure while at the same time securing a highly flexible migration path for evolving 3G-based protocols such as WCDMA and UMTS. SpectruCell is complemented by several other wireless technologies currently under development in Australia. Advanced Communication Technologies Inc. plans to market these products throughout North, South and Central America. For more information regarding Advanced Communications Technologies, visit www.act-usa.net.

About RLM Systems Pty Ltd

RLM is an equal joint venture between Lockheed Martin (NYSE:LMT) and Tenix Australia Pty Ltd that has significant experience in complex engineering tasks such as the Jindalee operational radar network.

RLM specializes in the design, production, integration, test and support of large, complex, state-of-the-art, software intensive systems. Employing approximately 600 people, the company is based in Melbourne, Australia and has operations in several States. Founded on a skilled and proven workforce, and with the backing of two major technology and defense partners, RLM is the new high technology force in the region.

About Tenix Australia Pty Ltd

With an annual turnover of A$1.2B and employing more than 5,000 people, the Tenix Group is Australia's largest and most successful defense and technology contractor. Operating in Australia, New Zealand, Fiji, the Philippines and the United States, Tenix has comprehensive skills and facilities, and close, mature links with international technology leaders.

Major subsidiaries include:

Tenix Defense Systems, the leading Australian force in

defense, providing systems integration and development for the

complex weapon, sensor and control and communications

equipment required for military and paramilitary platforms.

Tenix Industries, Enetech, a national engineering and

maintenance contractor specialising in the utilities and

infrastructure sectors, and Rossair, a progressive aviation

industry company offering a wide range of services.

In a Business Review Weekly survey of Australian private companies in August 2000, Tenix recorded the fifth-largest revenue increase of all companies surveyed, (increased earnings by more than 100% in that period to a projected A$1B in 1999-2000, excluding joint ventures). The financial strength of the Tenix Group includes, total assets of more than A$1 billion, full ownership of extensive facilities and forward orders of approximately A$2 billion.

About Lockheed Martin

Lockheed Martin is a global leader in the design, development, manufacturing and integration of advanced technology systems, products and services for government and commercial customers. Business areas span aeronautics, space, systems integration and technology services. The Corporation's core business areas are systems integration, aeronautics, space, technology services and global telecommunications. Lockheed Martin's vision is to be the world's best systems integrator in aerospace, defense and technology services. Lockheed Martin had sales in 2000 surpassing $25 billion and employs approximately 130,000 people.

The foregoing contains forward-looking information within the meaning of The Private Securities Litigation Act of 1995. Such forward-looking statements involve certain risks and uncertainties. The actual results may differ materially from such forward-looking statements. The company does not undertake to publicly update or revise its forward-looking statements even if experience or future changes make it clear that any projected results (expressed or implied) will not be realized.