SVPA-12
Revision as of 18:13, 24 May 2020 by GearyEppley (talk | contribs)
Contents
SVPA-12: NE 138th St at Wild Canary Farm
| Status | ACTIVE |
|---|---|
| Upstream | SVPA-15B 124th West |
| Downstream | USGS-9 Duvall |
Attributes
- Est. 2019
- Road - NE 138th St
- Ditch
- Dry when not flooding
- Mounted on utility pole
Installation Notes
Problems and Considerations (May 2020)
- Sensor Height – mount at least 14.5’ above bottom of ditch (must be > 2’ higher than current)
- Mount out over center of ditch.
- Cantilever arm must be level and static.
- Sensor should be moved from NNW to more of a NW orientation to be directly over the ditch to get the best possible readings.
- RSSI issues – poor RSSI since this location is farthest from receiver and is in a topographic hole.
- Mount transmitter and antenna as high as possible (use existing telephone pole?)
- Mount transmitter and sensor separately.
- Use 30’ sensor with longer cable.
- Access issues – location is immediately adjacent to gravel road, but height poses problem.
- If transmitter is mounted separate from sensor, both will need to still be accessible for battery changes, maintenance.
- Sensing Cone Issues – the cone of detection is very wide at the ground level.
- Sensor should be mounted at minimum height requirements to minimize size of cone.
- Vegetation will need to be cut back extensively along ditch edges.
- Sensing cone least 44.23” (diameter of cone at ground level).
