e30m3mon
Chief Journeyman
Would ferrite beads in the signal path help with any of that 60hz or are those typically reserved for higher frequencies ?
QuantAsylum
- Thread starter George S.
- Start date
Much higher frequencies Al...
Unfortunately that does not BNC very well George
J!m
Veteran and General Yakker
Star-Quad for balanced cables. Cardas or Mogami.
- Joined
- Jan 14, 2011
- Messages
- 75,382
- Location
- Gillette, Wyo.
- Tagline
- Halfbiass...Electron Herder and Backass Woof
Dennis, have you used much Neutrik stuff?
i have some balanced cables from them. They work well and are reasonably priced. I have not used one of their adapters yet.
- Joined
- Jan 14, 2011
- Messages
- 75,382
- Location
- Gillette, Wyo.
- Tagline
- Halfbiass...Electron Herder and Backass Woof
Thanks..
J!m
Veteran and General Yakker
I thought we were talking about balanced line?
One single ended to differential cable completed. Using Monoprice STP balanced cable I cut out of a patch cord. I sacrificed one cord by stripping it to look and ensure it's truly twisted and not parallel.
I separated the shield and twisted it around the leads at the break out for the BNC's. Was a PITA to do as no coax was used, and as Joe stated, BNC connectors are made for coax.
Another one of these to make, then a loop back with two BNC's on each end.
I separated the shield and twisted it around the leads at the break out for the BNC's. Was a PITA to do as no coax was used, and as Joe stated, BNC connectors are made for coax.
Another one of these to make, then a loop back with two BNC's on each end.
Attachments
WOPL Sniffer
Veteran and General Yakker
George, did you get your new 403??? Joe, did you get one too?????
WOPL Sniffer
Veteran and General Yakker
I haven't had much time to play with the 401 I got. QA sucks, he builds enough to keep in stock for an hour. He made everybody wait so he could sell the Programmable Loads at the same time. Now you can buy a programmable load, and there are not 403's or 404's available again (like the last 2 years) so screw him, I'll use the 401.
Yeah Sniff. Spent some free time today making differential cables for the QA403. No more 60 Hz spike. Actually, rather amazing how they work. They were a bitch to make, but worthwhile.
Now sitting at the monitor making loop back tests, trying to understand full scale input and attenuation.
I did post on the QA Forum asking questions about the cables. They weren't much help unfortunately.
Now sitting at the monitor making loop back tests, trying to understand full scale input and attenuation.
I did post on the QA Forum asking questions about the cables. They weren't much help unfortunately.
Attachments
60 Hz is much lower with the differential cables. This is with everything in the room on. A sound system, LED lights, Halogen light, big box fan running in the window, laptop plugged in on power. I have yet to experiment with the flat ground strap from the laptop to the QA case. Very happy with the new loop back cables. We'll see how the single ended to differential cables work out. May have a ground loop with them.
The 1024K FFT setting is the highest resolution. Pretty decent distortion and noise figures.
The 1024K FFT setting is the highest resolution. Pretty decent distortion and noise figures.
Attachments
Patiently awaiting the 404 Perry...I hear it has 8 fins.
