Friday, May 21, 2010

USGS Mt. St. Helens Frequencies

In honor of the 30th anniversary of the eruption of Mt. St. Helens in Washington State, the US Geological Survey had an open house at their facility in Vancouver, WA;

Thanks to those who were able to attend the open house, here is a list of the US Geological Survey frequencies in use at the Cascades Volcano Observatory:

164.6750 MHz - Link to North repeater
167.0750 MHz, 110.9 - North repeater input
167.0750 MHz, 127.3 - South repeater input
168.4250 MHz - Mt. St. Helens North & South repeaters
169.8250 MHz - USGS simplex

Tuesday, May 18, 2010

More Federal MOTOTRBO?

I recently came across what sure sounds like another federal frequency using the proprietary MOTOTRBO digital mode.

In Las Vegas I heard many transmissions on 406.9375 MHz that sounded a lot like the known MOTOTRBO users in my home area. I've heard several other federal users, including 406.625 MHz, the Federal Reserve Branch in Chicago, 407.9375 MHz coming from somewhere in the Seattle/Tacoma area, and 409.4375 MHz confirmed as coming from the VA Medical Center in Vancouver, Washington.