SpectraNet Contact

Services / 6–80 GHz

Microwave Backhaul

SpectraNet has designed point-to-point microwave backhaul networks for the major US cellular carriers and enterprise service providers for over 15 years. Judicious choice of network topology, radios, frequencies, and antenna sizes finds the balance that exceeds service-level agreement requirements while minimizing network cost — with frequency coordination and licensing handled end to end.

  • Link & network design
  • Frequency coordination
  • FCC licensing
  • Interference analysis
  • Fade prediction & measurement
  • MMW & FSO hybrid links

Representative work

Designed, coordinated, licensed — and measured.

Map of millimeter-wave and 23 GHz links across a port

Port-security video links

Gigabit Ethernet 70–80 GHz millimeter-wave links for high-speed video, alongside 23 GHz links at 300 Mbps, for a Homeland Security project. All designs, frequency coordination, and licensing by SpectraNet.

Microwave link design over a 50 mile water path

Spatial diversity on a 50-mile path

Microwave link design for a 50-mile over-the-water path, using spatial diversity to hold availability through severe multipath conditions.

Microwave links and Fresnel zones rendered in Google Earth

Line-of-sight validation

Links and Fresnel zones exported from the microwave design package into Google Earth to validate line-of-sight before anything is built.

Terrain and clutter path profile chart

Terrain & clutter path profiles

Path profiles built from 1/3-second terrain elevation data combined with high-resolution LIDAR clutter.

Chart of measured multipath fade events versus prediction

Multipath fading — theory vs. measurement

Fade-depth predictions versus K-factor, checked against measured receive power during over-water VHF fade events. Peak measured fades landed in the theoretically predicted range.

Spreadsheet summarizing microwave network reliability statistics

Network reliability engineering

Vigant-Barnett fade statistics, average fade duration versus margin, and automated multi-hop reliability summaries for hub-and-spoke designs.

Chart of hybrid MMW and FSO link distance versus availability

MMW / FSO hybrid links

Maximum distance versus availability modeling for hybrid millimeter-wave / free-space-optics links, including FSO up-time share when the MMW radio is primary.

Free-space optics rooftop installation

FSO deployments worldwide

Free-space-optics installations in Puerto Rico, Singapore, and Rio de Janeiro — and the disaster-recovery link connecting Merrill Lynch's NJ and NY offices after 9/11.

Chart of attenuation versus radome ice thickness

Radome ice attenuation

Attenuation versus antenna-radome ice thickness, calculated from the measured complex permittivity of ice across microwave frequencies.

Have a link to design?

Describe the path, the band, or the SLA — we'll come back with an engineering answer, not a sales call.

Email info@spectranet.net
Office
2632 29th Ave. W.
Seattle, WA 98199
Phone
206.790.0295