Black Mountain

Site 4

BAY-NET (WW6BAY)

Site located off the Black Mountain Trail near the Rancho San Antonio Open Space Preserve in the Los Altos Hills (map)(photos)

Road to the site is private and closed by a padlocked gate. The secure area at the site is managed by Crown Castle using a timed bluetooth enabled key dropbox. There are a number of tower up at Black Mountain:

• Site 1 - An old abandoned tower possibly still owned by Stanford University. Previously the site of the Stanford Amateur Radio Club (W6YX) repeater and Stanford's Instruction TV.
• Site 2 - Commercial site, but with a small HAM building.
• Site 3 - FAA
• Site 4 - The BAY-NET tower where AREDN is located
• Site 5 - WB6ECE Repeater Group

Site 1 is at the highest point.

Site Details

Configuration

Black Mountain hosts a Mikrotik hAP, a Ubiquiti PowerBeam and a Ubiquiti Rocket M5 XW with 120 degree sector. WAN access to the hAP is on 44net, provide by a non-AREDN related switch managed by KI6ZHD.

Device wiring runs through independently power PoE injectors, then to lightning arrestors, and finally out to the devices on the tower.

VLANs

VLAN	Description
1	AREDN WAN
2	AREDN DtD

hAP

Port	Description	VLANs	Notes
1	WAN	-	To 44net on non-AREDN related switch
2	LAN		Unused and taped over
3	LAN		Unused and taped over
4	N9JIM-PBE2	2	A custom change on this device has reconfigured this port to be an addition DtD
5	N9JIM-BlackMtn	2

Notes

• N9JIM-PBE2's radio is currently disabled. This was used to connect the site, via the node at Facebook Menlo Park, to the rest of the mesh. Facebook is down for the foreseeable future. Currently this site is only connect to the mesh via tunnels [5th March, 2023]

Nodes

N9JIM-BlackMtn

Radio: Ubiquiti Rocket M5 XW

Antenna: 120° sector

Location: 37.3201632, -122.1437596

Altitude: 850m

Bearing: 55° toward Sunnyvale

N9JIM-PBE2

Radio: Ubiquiti PowerBeam M5 XW 300

Antenna: Built in 22 dBi

Location: 37.32020, -122.14382

Altitude: 826m

Bearing: 356° toward Facebook Menlo Park

N9JIM-HAP1

Radio: MikroTik hAP ac lite

Antenna: -

Location: 37.3201632, -122.1437596

Altitude: -

Bearing: -

Commercial Neighbors

Etheric Networks

The local WISP in this area is Etheric. They license (WQMK876) spectrum in the 6.2 GHz, 10.5 GHz and 19.5 GHz regions.

Contacts

Site Admin

• David Ranch - KI6ZHD - sfwem@trinnet.net

Mesh Admin

• Jim Moss - N9JIM - n9jim@pacbell.net