Exhibit 2 Rev 2

0078-EX-ST-2005 Text Documents

HNS License Sub, LLC

2005-02-14ELS_69256

ATTACHMENT 2 TECHNICAL SUMMARY OF THE Ka-BAND TEST RANGE MODIFICATION The material in this attachment is intended to summarize the data provide electronically in the STA and in Attachment 1. A. 74 CM ANTENNA Deployment location: Can be deployed anywhere in the continental United States of America Antenna Size: 98 by 56 cm elliptical antenna (gain is equivalent to a 74 cm circular dish). Antenna pointing: towards the GSO arc. The precise azimuth and elevation will vary depending on the specific terminal location. Antenna beamwidth: 0.9 degrees (from 3 dB to 3 dB point on GSO plane) Transmit frequency range: 29.5 to 30.0 GHz Receive frequency range: 19.7 to 20.2 GHz. Antenna gain: transmit 45.6 dBi, receive 42.2 dBi Antenna off-axis gain Complies with 25.209 Antenna model number HNS1031929 Radio model number unnumbered prototypes Quantity 50 radio/antenna Modulation QPSK Bandwidth 250 or 320 kHz Power (clear sky) 0.4 Watts (250 kHz) or 0.5 Watts (320 kHz) Power (rain) 2 Watts EIRP (clear sky) 41.7 dBW (250 kHz), 42.8 dBW (320 kHz) EIRP (rain) 48.6 dBW B. 98 CM ANTENNA Deployment location: Can be deployed anywhere in the continental United States of America Antenna Size: 98 cm parabolic Antenna pointing: towards the GSO arc. The precise azimuth and elevation will vary depending on the specific terminal location. Antenna beamwidth: 0.7 degrees (from 3 dB to 3 dB point on GSO plane) Transmit frequency range: 29.5 to 30.0 GHz

Receive frequency range: 19.7 to 20.2 GHz. Antenna gain: transmit 48.0 dBi, receive 44.6 dBi Antenna off-axis gain Complies with 25.209 Antenna model number Prodelin 3980-131 Radio model number unnumbered prototypes Quantity 25 radio/antenna Modulation QPSK Bandwidth 250 or 320 kHz Power (clear sky) 0.4 Watts (250 kHz) or 0.5 Watts (320 kHz) Power (rain) 2 Watts EIRP (clear sky) 44.1 dBW (250 kHz), 45.2 dBW (320 kHz) EIRP (rain) 51.0 dBW C. 120 CM ANTENNA Deployment location: Can be deployed anywhere in the continental United States of America Antenna Size: 120 cm parabolic Antenna pointing: towards the GSO arc. The precise azimuth and elevation will vary depending on the specific terminal location. Antenna beamwidth: 0.6 degrees (from 3 dB to 3 dB point on GSO plane) Transmit frequency range: 29.5 to 30.0 GHz Receive frequency range: 19.7 to 20.2 GHz. Antenna gain: transmit 49.8 dBi, receive 46.4 dBi Antenna off-axis gain Complies with 25.209 Antenna model number Prodelin 3120-131 Radio model number unnumbered prototypes Quantity 10 radio/antenna Modulation QPSK Bandwidth 250 or 320 kHz Power (clear sky) 0.4 Watts (250 kHz) or 0.5 Watts (320 kHz) Power (rain) 2 Watts EIRP (clear sky) 45.9 dBW (250 kHz), 47.0 dBW (320 kHz) EIRP (rain) 52.8 dBW D. 180 CM ANTENNA Deployment location: Can be deployed anywhere in the continental United States of America Antenna Size: 180 cm parabolic

Antenna pointing: towards the GSO arc. The precise azimuth and elevation will vary depending on the specific terminal location. Antenna beamwidth: 0.45 degrees (from 3dB to 3dB point on GSO plane) Transmit frequency range: 29.5 to 30.0 GHz Receive frequency range: 19.7 to 20.2 GHz. Antenna gain: transmit 53.3 dBi, receive 49.9 dBi Antenna off-axis gain Complies with 25.209 Antenna model number Prodelin 3180-131 Radio model number unnumbered prototypes Quantity 10 radio/antenna Modulation QPSK Bandwidth 250 or 320 kHz Power (clear sky) 0.4 Watts (250 kHz) or 0.5 Watts (320 kHz) Power (rain) 2 Watts EIRP (clear sky) 49.6 dBW (250 kHz), 50.7 dBW (320 kHz) EIRP (rain) 56.5 dBW E. 350 CM ANTENNA Deployment location: 2 units deployed in Germantown, MD 1 unit deployed in North Las Vegas, NV Antenna Size: 350 cm parabolic Antenna pointing: For Germantown AZ 192.16 deg, EL 43.9 deg. For North Las Vegas AZ 135.54, EL 37.3 deg. Antenna beamwidth: 0.2 degrees (from 3 dB to 3 dB point on GSO plane) Transmit frequency range: 29.5 to 30.0 GHz Receive frequency range: 19.7 to 20.2 GHz. Antenna gain: transmit 58.9 dBi, receive 55.5 dBi Antenna off-axis gain Complies with 25.209 Antenna model number Andrew ES35SRT-1 Radio model number unnumbered prototypes Modulation QPSK Bandwidth 250 kHz, 320 kHz, 39 MHz Power (clear sky) 0.4 Watts (250 kHz), 0.5 Watts (320 kHz), 64 Watts (39 MHz) Power (rain) 2 Watts (250 kHz), 2 Watts (320 kHz), 80 Watts (39 MHz) EIRP (clear sky) 55.0 dBW (250 kHz), 56.1 dBW (320 kHz), 76.9 dBW (39 MHz) EIRP (rain) 61.9 dBW (250 kHz), 61.9dBW (320 kHz), 77.9 dBW (39 MHz)


Document Created: 2005-02-14 11:11:58
Document Modified: 2005-02-14 11:11:58
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