方向性：>30 dB (適用 1.7 到 4 GHz)，>26 dB (適用 4 到 12.4 GHz)
最大 SWR： 1.2
插入損耗：<0.60dB
The 779D (discontinued item) is an economical directional coupler designed for swept measurements in the 1.7 to 12.4 GHz range. The 773D is a suggested replacement product.
