Cryocable Impedance

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Generally: 30-50pF per meter (typically <2m); 265-Ohm, 190-Ohm, 110-Ohm (quoted from various experiments)

SCUBA-2: 190-Ohm, 50-pf(?) single wire; ssa-outputs use wires with twice the diameter => 190/4=47.5 Ohm

ACT: ~190 ohm
Spider: test cryostat cryo cable: 48" + 43" long, R~90 ohms (round trip) and C~180 pF between pairs; Flight cryostat cryo cable: 3m + 45" long, R~160 ohm (round trip) and C~350pF between pairs.

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