5cm-tier-1-sites

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