I was the last failure on this cable.
my problems:
1. BNC connectors.
I cant' tell you how many I bought and ruined on this cable. seems there are many different variations of BNC plugs, and they require crimping and not soldering.
I even went out and dumped $60 on a crimper for this (and other) projects. Still can't get the right freakin' connecters. I just dont know what i'm doing w/those.
2. opened up the 3.5mm end only to have a bunch of broken resistors fall out. this was the home-brew attenuator.
my problem here is that i'm not an EE. so I have no clue as to what values these have, how much attenuation they are providing...etc.
This new problem lead me to buy several books on EE basics so that I could learn how to make this.
3. time.
I have too many projects, kids, dogs, wives..., leaving much time only for things that I know I can finish once I start.
good luck.
fwiw, I have rebuilt the original cable, sans -10db pad. PM me your addie and I'll send it back.