client info data, photos, secure pages...

SedUnits v1.20

SedUnits is Penscil's grain size calculator. This free utility converts between Phi, equivalent particle diameter (mm or µm), and settling velocity (cm/s).

SedUnits provides both Gibbs (1971) and Dietrich (1982) settling models.

The calculator also provides conversions to and from inches or mils. For any size particle from -4.0 to +14.0 Phi, the calculator will display the sediment class according to Wentworth (1922) and the largest ASTM-E11 sieve that will catch the particle. In addition, SedUnits will display the nominal settling time through a specified depth (two meters, by default) of pure, fresh water.

This utility runs under Windows NT, 2000, XP, Vista and 7.

Request SedUnits.

Where is Los Osos anyway?

Los Osos is located approximately 10 miles West of US Highway 101, half way between Los Angeles and San Francisco.

We are 15 miles from San Luis Obispo Airport.

Wireless Test Area:

Modem test site topo (395 kB)

Here are some images of our wireless modem test area. Click on the image to see a larger version.

Map of Modem Test Area from USGS Morro Bay So. Quad.

Master antenna field of view (204 kB)

Master antenna field of view.


Central California Coast (84 kB)

last update 2023 August 09

home  |  services  |  clients  |  contact |  links