I have designed and constructed a muon hodoscope/veto counter for E-683 at Fermilab. Preliminary tests indicate that the efficiency of each scintillator is $\approx$99.9%, allowing the hodoscope layers to be used in coincidence mode. The calibration of the modules in the E-683 main calorimeter has been studied using muons from the 1987-88 parasitic run. Preliminary calibration reveals that the calorimeter's response is within the parameters observed in E-609. Further, new information reveals the response of calorimeter modules to different physical triggers. The response of the calorimeter modules to different voltage thresholds, neighbor cuts, and gate timings has been analyzed. Results from the 1990 parasitic run indicate that the gate timing should precede the signal by 80 ns. After developing a new program to analyze the data from the entire calorimeter, I have begun muon balancing of all the modules. (Abstract shortened with permission of author.)