PTP820C 11GHz 4+0 Cross-Polar or Co-Polar channel support

When using LINKPlanner to design an 11GHz 4+0 link, you may have noticed that the bandwidth support changes drastically for PTP820C 4+0 Cross-Polar, 4+0 Co-Polar, or MC-ABC type links. 

A 4+0 Co-Polar (or 4+0 Cross-Polar) link needs 320 MHz of spectrum, but the ODU (Narrow and Wide) sub-bands are not wide enough.  Only a 4+0 XPIC configuration will work for 80MHz wide channel support.  Furthermore, MC-ABC is only supported on channel sizes up to 60MHz.  This means that MC-ABC is only supported on wide or narrow SKU's configured for 60MHz wide channel scripts.  Also, please note that a 60MHz wide channel must be licensed, with the FCC, as an 80MHz wide channel pair, but the channel's occupied bandwidth is only approximately 60MHz.

The supported configurations are summarized as the following:

- PTP820 (Wide) 4+0 Cross-Polar up to 40MHz wide channels using Multiple Ethernet or MC-ABC

- PTP820 (Wide) 4+0 Co-Polar up to 40MHz wide channels using Multiple Ethernet or MC-ABC

- PTP820 (Wide) 4+0 XPIC up to 80MHz wide channels using Multiple Ethernet

- PTP820 (Wide) 4+0 XPIC up to 60MHz wide channels using MC-ABC (this configuration is not able to be designed in LINKPlanner, but is a valid option for production)

- PTP820 (Narrow) 4+0 Cross-Polar up to 40MHz wide channels using Multiple Ethernet or MC-ABC

- PTP820 (Narrow) 4+0 Co-Polar up to 40MHz wide channels using Multiple Ethernet or MC-ABC

- PTP820 (Narrow) 4+0 XPIC up to 60MHz wide channels using Multiple Ethernet or MC-ABC

Reach out to your Cambium Sales Team with any questions on PTP820 or LINKPlanner configuration. 

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