National Spectrum Managers Association High Data Rate Radios at 71-76, and GHz Bands Presented By: Doug Lockie, President, CTO, and Co-Founder GigaBeam Corporation

2 Safe Harbor Any statements in and associated with this presentation regarding GigaBeam Corporation’s products, services, capabilities, performance, opportunities, development and business outlook that are forward- looking involve and are subject to known and unknown risks, uncertainties and other factors, some of which are beyond GigaBeam's control and difficult to predict, and could cause actual results to differ materially from those anticipated, expressed or forecasted in the forward-looking statements. Such risks and uncertainties may include, but are not limited to: lack of operating history, transitioning from a development company to an operating company, difficulties in distinguishing GigaBeam's products and services, ability to manufacture and deploy GigaBeam's products, lack of or delay in market acceptance and fluctuations in customer demand, dependence on a limited number of significant customers, reliance on third party vendors and strategic partners, availability of raw materials, subassemblies and components, ability to meet future capital requirements on acceptable terms, continuing uncertainty in the telecommunications industry and the global economy, intense competition in the telecommunications equipment industry and resulting impact on pricing and general financial performance, compliance with federal and state regulatory requirements, timing, availability and success of new technology and product introductions and the other factors discussed in GigaBeam's filings with the Securities and Exchange Commission.

3 GigaBeam… Multi-Gigabit Radios for the Last Mile (10x previous radio technology)

4 WiFiber™ Market Drivers Limited Fiber Access 95% of 750,000 US Commercial Buildings have no fiber 95% of 750,000 US Commercial Buildings have no fiber $ - New fiber costs prohibitive $ - New fiber costs prohibitive Delays – rights of way, attorneys, and regulations Delays – rights of way, attorneys, and regulations Increased Demand for Fiber Speed Access Remote storage growth accelerating – SAN & NAS Remote storage growth accelerating – SAN & NAS Storage access speeds increasing to 10Gbps Storage access speeds increasing to 10Gbps Entertainment & HDTV – “Triple Play” Entertainment & HDTV – “Triple Play” Greater Need for Resiliency/Diversity Post 911 plans require diverse access circuits Post 911 plans require diverse access circuits Disaster recovery driving infrastructure builds Disaster recovery driving infrastructure builds Sarbanes Oxley regulations driving data security Sarbanes Oxley regulations driving data security Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.

5 Cisco – Market Demand Exparte filing by with the FCC on 5/16/2003

6 Distinct Competitive Advantage Fast…Reliable…

7 Distinct Competitive Advantage …and Inexpensive

8 Removing the Obstacle Fiber Optic Installation Tool Radio Installation Tool Lockie’s Law: Backhoes Don’t Follow Moore’s Law

9 WiFiber™ Applications

10 WiFiber™ Applications Disaster Recovery Alternative Access Alternative Access Access Diversity Access Diversity Disaster Recovery Disaster Recovery Campus LAN Campus Connectivity Campus Connectivity Metropolitan Network Metropolitan Network B to B Communications B to B Communications

11 WiFiber™ Applications Storage Access - SAN Storage Area Network Storage Area Network LAN to LAN LAN to LAN Network Attached Storage Network Attached Storage Wireless Backhaul Cellular/PCS Cellular/PCS 3G/4G 3G/4G WiFi WiFi WiMAX WiMAX

12 WiFiber™ Supports MST Triple-Play for Trump Properties Trump West Side Drive 0.7 mi. Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.

13 WiFiber™ Supports Dartmouth College, Hanover, NH Point to Point 1.4 mi.

14 WiFiber™ Supports Dartmouth College, Hanover, NH Baker Tower 1.4 mi. Baker Tower 1.4 mi.

15 WiFiber™ Supports San Francisco Public Utility Commission WiFiber radios atop emergency warning system tower San Francisco PUC 3-mile Tandem Link

16 WiFiber™ Supports Verizon Laboratory Facilities GigaBeam radios installed at Verizon laboratory facilities for Network Architecture & Advanced Technology integration

17 Intelco Towers Telescoping Portable Mast

18 Minimal Wind Resistance. Stable. Extends to 33 m/106 ft

19 Antenna Size vs. Frequency (1° Bandwidth) 900 MHz 1.8 GHz 3.5 GHz 7 GHz 14 GHz 30 GHz 60 GHz 100 GHz 70 ft 35 ft 12 ft 6 ft 3 ft 1.5 ft 8 in 5 in

, 81-86, & GHz The Only Spectrum for Multi-Gigabit Communications FSO 60GHz 71-76, 81-86, & 92-95GHz Upper Millimeter Wave Spectrum Bands Support Multi- Gigabit-per-Second Communications for %

21 Nines Weather Availability Terminology NinesDowntime/YRPercent 5 nines 5 minutes % 4 nines 50 minutes 99.99% 3 nines 500 minutes 99.9% 2 nines 5,000 minutes 99% Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.

22 Rain Attenuation The reason Millimeter Wave is a One Mile 5 Nines solution 1 Mile 1/1,000,000 watt transmitter 4/1,000,000 watt transmitter In clear air, 4X power increase to double the distance Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.

23 Rain Attenuation The reason Millimeter Wave is a One Mile 5 Nines solution 1 Mile 100,000 times more power at 1 mile in rain, 1/10 watt transmitter (compared to 1/1,000,000 watt for clear air) Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.

24 Rain Attenuation The reason Millimeter Wave is a One Mile 5 Nines solution 1 Mile 100,000 times more power at 1 mile, 1/10 watt transmitter Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.

25 Rain Attenuation The reason Millimeter Wave is a One Mile 5 Nines solution 1 Mile 100,000 times more power at 1 mile, 1/10 watt transmitter Additional 100,000 times power for 2 miles, 10,000 watts Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.

26 Rain Attenuation The reason Millimeter Wave is a Two Mile 4 Nines solution 1 Mile 350 times more power at 1 mile,.35/1,000 watt transmitter for 4 nines Additional 350 times power for 2 miles, 120/1,000 watt transmitter for 4 nines, 2 miles Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.

27 GigaBeam Roadmap 1.25 Gigabit radio presently 1.25 Gigabit radio presently 2.5 Gigabit radio Q Gigabit radio Q Gigabit radio Q Gigabit radio Q Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.

28 Anechoic Chamber FCC Qualification of 3 rd Generation GigaBeam Radio Presently Underway

29 Gigabit Access Market “Last-Mile” 750,000 business locations with more than 20 employees (United States) 750,000 business locations with more than 20 employees (United States) 4X Market overseas 4X Market overseas Big Surprise, Worldwide Band Plan Acceptance Big Surprise, Worldwide Band Plan Acceptance Gigabit demand at a price Gigabit demand at a price Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.

30 Thank You! Information contained in this presentation is confidential. It is not to be duplicated or distributed to third parties without the express written consent of GigaBeam Corporation.