Black Mountain (Site 4)
Black Mountain (Site 4) is one of 5 sites located off the Black Mountain Trail near the Rancho San Antonio Open Space Preserve in the Los Altos Hills (map)(photos).
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: -
Backbone
BlackMountain-to-SBM7
- Radio: Ubiquiti airFiber 5XHD
- Frequency: -
- Bandwidth: 20MHz
- Antenna: 23 dBi dish
- Location: -
- Altitude: -
- Bearing: -
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.
| VLAN | Description |
|---|---|
| 1 | AREDN WAN |
| 2 | AREDN DtD |
| 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]
Future Plans
- Install a new 90° sector + Rocket 5AC Lite radio to replace the current Rocket + 120° sector
- Remove the PowerBeam
- Install the airFiber backbone radio
- Install the Mikrotik CRS112-8p-4s-in PoE router
- Install a 60GHz connection to Site 5.
Completed Work
-
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