Sorry if off topic but possibly of interest to those aligning their gear. I have a number of Measurements Corp. (Boonton) RF pads (Model 80-ZH1), these are 50 ohm pads with a 2:1 voltage ratio. Each has Type-N male and a UHF-female connector. $5.00 each plus shipping. Contact Dan, K0DAN at k0dan at arrl.net