マッチドペアのアッテネータがオプションで指定できるので、High Speed Serial Bus の測定によさそうです。
Ultra-Broadband Attenuators Built for Data
The HYPERLABS HL9429 Attenuator operates from DC to 110 GHz, providing an extremely flat frequency response and excellent return loss. The HL9429 and the HL9427 (DC to 67 GHz) are available in fixed values of 3dB, 6dB and 10dB; with an option for matched pairs (amplitude/phase).
HYPERLABS is a global provider of ultra-broadband components operating to 110 GHz and beyond: Amplifiers, Baluns, Pick-Off Tees, Bias Tees, DC Blocks, Power Dividers, Pickoff-Tees, Terminations and more.
日本の代理店 アイウェーブ
