FXStreet (Córdoba) - While the dollar continues to oscillate in familiar ranges ahead of the eagerly awaited Federal Reserve decision, the franc has managed to advance slightly, dragging USD/CHF back below the 0.9900 level. USD/CHF made an upside attempt during the European session but was capped by the 50-day SMA and turned lower, although movements have been subdued as investors take a cautious stance hours ahead of the FOMC statement. Having fallen below 0.9900, USD/CHF hit a session low of 0.9875 and it was last down 0.27% at 0.9883. Looking ahead, the FOMC will announce its decision at 19:00 GMT, with most analysts expecting rates to “lift-off” from record low levels. With most of the rate hike prices in, focus will be on what Yellen says about the future path of rates. USD/CHF levels to watch In terms of technical levels, immediate resistances could be found at 0.9922/24 (50-day SMA/Dec 15 high), 0.9945 (Dec 9 high and 1.0030/35 (Dec 4 & 7 highs). On the other hand, supports could be faced at 0.9812 (100-day SMA), 0.9785 (Dec 14 low) and then 0.9755 (Oct 26 low). For more information, read our latest forex news.