SB3 is a two-node ORBIT sandbox at WINLAB (Route 1, North Brunswick, NJ),
historically used as a general-purpose USRP2 + Atheros 9K development
environment. Two nodes: node1-1.sb3.orbit-lab.org,
node1-2.sb3.orbit-lab.org.
SB3 is one of the older sandboxes — useful for legacy USRP2-based
experiments and for sanity-testing OMF/disk-image workflows. For modern
X310-class SDR work, prefer
SB2. For USB B210,
prefer SB1.
| Component | Value |
|---|---|
| Mainboard | "Los Lunas 2" (LV-67C class) |
| CPU | Intel Core i7-2600 @ 3.40 GHz (4 cores / 8 threads) |
| RAM | 8 GB |
| Disk | EDGE Boost Pro S (~55 GB SSD) |
| WiFi | Qualcomm Atheros AR928X (PCIe) |
| SDR | 1× USRP2 (gigabit ethernet) |
SB3 nodes are the oldest active generation in the sandbox fleet —
i7-2600 (Sandy Bridge, 2011) on the smaller-form-factor LV-67C class
board. Storage and RAM are correspondingly modest.
The two USRP2s are connected via coax with a protective attenuator on
each link (same pattern as SB1
and SB2). Daughtercards
have varied over the lifetime of the sandbox — confirm what's currently
installed before planning frequency-specific experiments.
| If your experiment needs… | Use SB3 |
|---|---|
| Legacy USRP2 (gigE) | ✓ |
| Atheros 5K/9K WiFi only | ✓ |
| A "spare" sandbox when SB1 and SB2 are busy | ✓ |
| Newer SDR (B210, X310) | use SB1 or SB2 |
| Tightly-controlled RF attenuation | use SB4 |
| GPU / FPGA wired-only experiments | use SB9 |
omf-tell -a on -t system:topo:all
omf-load -i baseline.ndz -t all
omf-stat -t all
omf-tell -a offh -t all
See Getting Started for the full
walkthrough.