"I saw an FTS 5030 Cesium Standard and thought it might be useful. But, before I sink major coin into this, I thought I would get the opinions of the group. Thanks, Dick, W1KSZ" There is currently an FTS 6006 controller on Ebay for the FTS 5030 modular Cs unit. Is the modular FTS 5030 unit radically different than the 5030 assembly in the FTS 4060 standard?