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The CSU-CHILL FPS-18 van receives a second transmitter on 20 October 1994. This transmitter cabinet had been obtained earlier in the year as surplus equipment from NSSL. This second transmitter would be connected through a dual-channel rotary waveguide joint to the V polarization port of the new antenna. The dual transmitter configuration eliminated the need for the Raytheon polarization switch. The resultant improvement in isolation between the H and V channels extended the measurement of Linear Depolarization Ratio (LDR) down to the new antenna’s measurement limit (~ -34 dB). From left to right in the photograph, Ken Pattison (wearing a hat), and Dave Brunkow monitor the clearances as Gene Mueller operates the forklift.