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We present a 67--93.6 GHz spectral line survey of Orion-KL with the new 4 mmReceiver on the Green Bank Telescope (GBT). The survey reaches unprecedenteddepths and covers the low-frequency end of the 3 mm atmospheric window whichhas been relatively unexplored previously. The entire spectral-line survey ispublished electronically for general use by the astronomical community. Thecalibration and performance of 4 mm Receiver on the GBT is also summarized.

The GBT 67 -- 93.6 GHz Spectral Line Survey of Orion-KL