5cm-tier-1-sites

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This is an initial plan for what is needed for a Tier 1 site. Tier 1 sites provide the backbone data ring they are assumed to only have tier 2 sites connected to them. These sites should remain running without grid power for a minimum for 48hours running at 100% duty cycle.

Provisional planning for each tier 1 sites is as follows:

3x PTP radios

1x 10port Ethernet Switch (5 port gigE, 5 port FE)

1x BeagleBone/Rasberry Pi

1x UHF Data Radio

1x VHF Data Radio

1x Battery System

1x Charging System


Core equipment takes 8-30V input voltage, to minimize line losses for POE, we have standardized on 24V main bus, with DC-DC converters providing 12 and 5V out for other equipment.

To provide 48Hours of off grid operation, a battery system providing 240Ah@24V at 80% DOD is needed.

Suggested BOM

This is based on the typical sector site used by HAMwan

Quantity Model Description Unit Cost Total
3 Laird SAH58-120-16-WB Sector antenna, 120 degree, 14dBi, horizontal polarization $259 $777
3 MikroTik RouterBOARD Metal 5SHPn 5 GHz sector modem $76 $228
1 RB2011UAS-RM 8-port router/switch $119 $119
1 ARC ARC-DA5834SD1 Uplink dish, 3ft, 34 dBi $259 $259
1 RB912UAG-5HPnD-OU 5 GHz MIMO uplink modem $89 $89


This is based on the typical client site used by HAMwan

Quantity Model Description Unit Cost Total
1 Teletronics 15-212 5.8GHz 29dBi Reflector Antenna $69 $69
1 MikroTik RouterBOARD Metal 5SHPn 5 GHz sector modem $76 $76