The Denali weather station was originally conceived by Japanese mountaineer Yoshitomi Okura.  Okura's friend Naomi Uemura had died on the mountain during severe winds.  Okura had wanted a way to measure the winds near Denali Pass. In 2002, a weather station was placed on the mountain.  During January 2003, the station stopped sending data. The exact cause of failure remains unknown,  however the last reading from the station indicated a wind speed of 183 MPH! During the years 2005 and 2006 Polartronix constructed a low power telemetry system for use with the weather station. This led to the development of Polartronix first product, the PX-503

The PX-503 is a device which enables telemetry data to be transmitted over long distance with very low power. This was first used on a high altitude weather station in which data had to be transmitted more than 100 miles while consuming less than 2 mw of average power. It uses dual processors and other redundant components for maximum reliability.

The ICE-H receiver was built for HiPass radio observatory to measure pulse data from the ionosphere

This is a detail image of the main circuit board of the receiver.
This is a 6 layer high frequency board, and was designed and built by Polartronix.