Sunol Ridge

Sunol Ridge Repeater Group (W6SRR)

Site is located off Palomares Road, Castro Valley at Sunol Peak (map)(photos)

The Sunol Ridge is geographically located between Union City and Pleasanton. The ridge line separates the Fremont area of Alameda County from Dublin, Pleasanton, and Livermore on the east side of the ridge.

Site Details

Configuration

Sunol Ridge hosts an Edge Router X SFP and an EdgePower 24V 72W, an airFiber 5XHD, a hAP AC2 and various other AREDN nodes.

Devices

Device	IP	Notes
EdgeRouterX SFP	AREDN LAN	Management on VLAN 1004
EdgePower 24V 72W	AREDN LAN
airFiber 5XHD	AREDN LAN	Management on VLAN 1004

VLANs

VLAN	Description
1	AREDN WAN
2	AREDN DtD
14	San Carlos XLINK
1004	Management

Edge Router X SFP

Port	Description	VLANs	PoE	Notes
0	AREDN	2	24v	W6SRR-SR-Livermore
1	AREDN	2	24v	W6SRR-SR-Fremont & W6SRR-SR-SXQ
2	AREDN	2	Off
3	AREDN	2	Off
4	airFiber 5XHD	14,1004	24v	to San Carlos
5	to W6SRR-SR-HAP	2,14,(1004)	-

airFiber 5XHD

Port	Description	VLANs	Notes
Data	to EdgeSwitchX	14,1004	Management VLAN 1004
Mgmt	(unused)

Edge Power 24V 72W

Port	Description	PoE	Notes
1	AREDN	24v	Provides a 100Mbps AREDN PoE port
2	to W6SRR-SR-HAP	Off

W6SRR-SR-HAP (custom config)

Port	Description	VLANs	Notes
1	AREDN WAN	(1)	wan - PoE-in unused
2	EdgePower	(U), 2	lan1
3	AREDN	(U), 2	lan2
4	AREDN	(U), 2	lan3
5	to EdgeRouterX	(U), 2, 14	lan4

Power

Power is provided on site. A backup generator is also included. However, we include our own backup power using an EdgePower 24V 72W and two 24Ah LiFePO4 batteries. The batteries are mounted on a 2U shelf mounted towards the bottom of the equipment rack and provide ~1 day of backup power. The rack already contains other batteries for separate equipment so this is compromise between space, weight, and runtime.

Backbone

Dish to San Carlos

Radio: airFiber 5XHD

Antenna: airFiber 30 dBi Slant 45

Frequency: 5.940 GHz

Bandwidth: 40 MHz

Location: 37.620065,-121.922218

Altitude: 660m

Bearing: 246°

Read Only Access: mesh / Back-Bone

Nodes

W6SRR-SR-HAP

Radio: Mikrotik hAP AC2

Frequency: -

Bandwidth: -

Antenna: builtin

Location: 37.620065,-121.922218

Altitude: -

Bearing: -

W6SRR-SR-LIVERMORE

Radio: mANTBox 19s

Antenna: 120° sector

Frequency: 5.855 GHz (channel 171)

Bandwidth: 10 MHz

Location: 37.620065,-121.922218

Altitude: 660m

Bearing: 38°

Downtilt: 2.5°

W6SRR-SR-FREMONT

Radio: mANTBox 19s

Antenna: 120° sector

Frequency: 5.905 GHz (channel 181)

Bandwidth: 10 MHz

Location: 37.620065,-121.922218

Altitude: 660m

Bearing: ~228°

Downtilt: ~2°

W6SRR-SR-SQX

Radio: Mikrotik SXT 5 High Power

Antenna: Built-in

Frequency: 5.875 GHz (channel 175)

Bandwidth: 10 MHz

Location: 37.620065,-121.922218

Altitude: 660m

Bearing: ~218°

Downtilt: 0

Commercial Neighbors

Etheric Networks, Inc. shared tenancy at Sunol Ridge. They license (WQUA557 WRJT283) spectrum in the 5.96 GHz (60 MHz), 6.09 GHz (30 MHz), 6.21 GHz (60 MHz) and 10.8 GHz range. Unlike many microwave tenants, the licensed band overlaps with the WiFi 6E spectrum which must defer to their use. Care must be taken when running a backbone link through this site, although we are unlikely to be run links in similar directions.

Other Neighbors

The site also contains many other radios, including radios for Alameda County, the emergency services and Alameda County OES. The primary EOC is located in Dublin. (map)

Local Radio Clubs

• Sunol Ridge Repeater Group (W6SRR)
• Livermore Amateur Radio Klub (LARK)
• Hayward Radio Club (K6EAG)
• South Bay Amateur Radio Association (KU6S)

Points of Interest

• Livermore area mesh radio nodes reporting as of Jan 2023. (KML)
• 

• Livermore Airport (HAT)
• Alameda County Dublin EOC (map)

Contacts

• Ian Parker - W6TCP - w6tcpian@gmail.com