here is a picture of Cambium Networks radios installation in Kigali at one of our distribution base stations. We have at the site the PTP 820S with 90 cm dish, the PTP 670 with 60 cm dish and the PMP 450i AP integrated radios.
@Olympe Hi, I was hoping to inquire about the type of dishes you are using with the ptp 670 and ptp 820s and where I can source as such especially those operating in the 5GHz.
PTP Dish Antenna, 4.9-6GHz 4-ft (1.2m), 35 dBi, Standard Performance
Dual-Polarization Antenna with 2x N-Female Connectors (Replaces RDH4505B) at https://www.winncom.com/en/products/RDH4505C
PTP Dish Antenna, 4.9-6GHz 3-ft (0.9m), 32 dBi, Standard Performance
Dual-Polarization Antenna with 2x N-Female Connectors (Replaces RDH4504B) at https://www.winncom.com/en/products/RDH4504C
Either 0.9 m or 1.2 m will work on 50 Km link. Use these dishes on the 4.9-5 GHz radios (PTP 450i, PTP 550 or PTP 670) only.
For the PTP 820S or PTP 820C, the antenna type is frequency dependant (6, 7, 8 GHz, etc.). And first you need to have a spectrum before you aquire that radio. As you have been working within the 5 GHz, consider the suggested antennas.
In case, you need the PTP 820 series radios, aquire the spectrum between 7-11 GHz (For long range links), then buy the radios with the right dishes for links beyond 200 Mbps single direction.