BNC connectors

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I would normally used isolated versions (plastic spacer in the middle) if the racks are metal to prevent grounding issues.

isolated bnc - Parts Express Ships Fast and Ships Free.

Parts Express stocks and ships fast - isolated bnc Parts Express is your #1 Source for Audio, Video and Speaker Building Components.
www.parts-express.com www.parts-express.com

Alternate supplier

www.americanradiosupply.com

BNC Bulkhead Feed-Thru Isolated Coaxial Adapter UG-492D/U BNC-3191

BNC-Female Bulkhead Feed-Thru Isolated Coaxial Adapter UG-492D/U (BNC-3191)
www.americanradiosupply.com www.americanradiosupply.com
 
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steve149 said:
I would normally used isolated versions (plastic spacer in the middle) if the racks are metal to prevent grounding issues.

isolated bnc - Parts Express Ships Fast and Ships Free.

Parts Express stocks and ships fast - isolated bnc Parts Express is your #1 Source for Audio, Video and Speaker Building Components.
www.parts-express.com www.parts-express.com
Click to expand...

What cable should I get for this?

I did not see any BNC to BNC cables at PartsExpress.
 
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steve149 said:
They have similar at Amazon ..

Amazon.com : HDView BNC Cable 2 Feet, 2 Packs, BNC Patch Cord Wire Cable Jack Plug, RG59 Solid Copper, BNC Male to BNC Male Plug RF Digital Coaxial Jumper Cable Cord for Video Application : Camera & Photo

Amazon.com : HDView BNC Cable 2 Feet, 2 Packs, BNC Patch Cord Wire Cable Jack Plug, RG59 Solid Copper, BNC Male to BNC Male Plug RF Digital Coaxial Jumper Cable Cord for Video Application : Camera & Photo
www.amazon.com
Click to expand...


Thanks Steve I knew you would come thur.
 
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I actually found cables with a flush mount BNC on one end.
I made the mistake of buying cheap ones,
and they barely made it past the installation.
(and even with a plastic washer, I still had grounding issues)
Bought EV brand flush mount cables to match my wireless unit and haven't had an issue since.

IMG_20191115_152500274.jpg
 
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Buy 50 ohm cables, not the 75 ohm RG-59 cables Steve linked to. Low cost (high loss) 50 ohm cables are called RG-58. You are better off buying lower loss RG-8x. RG-8 is better than RG-8x but thicker. Pros often use LMR cables from Times Microwave. The higher the LMR number the better. LMR 400 is pretty popular with pros for anything over 20'. The 500 and 600 are even better and used for longer distances. You want to compare loss per unit length when comparing cables.
 
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sawdust123 said:
Buy 50 ohm cables, not the 75 ohm RG-59 cables Steve linked to. Low cost (high loss) 50 ohm cables are called RG-58. You are better off buying lower loss RG-8x. RG-8 is better than RG-8x but thicker. Pros often use LMR cables from Times Microwave. The higher the LMR number the better. LMR 400 is pretty popular with pros for anything over 20'. The 500 and 600 are even better and used for longer distances. You want to compare loss per unit length when comparing cables.
Click to expand...
The ones I linked are listed as 50 ohm ?
 
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sawdust123 said:
Hmmm, when I brought up the link last night it said RG-59.
Click to expand...
Does say RG59 and below says 50 ohm .. maybe it WOULD be best to find another option, though at 2 feet, probably not much of a difference.
 
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steve149 said:
OK .. here's another cable source .. and you can get 50 ohm BNC cables in .5, 1, 2, 3, 4 ... foot lengths with either straight or rt angle connectors ... INFOMANAGE/SEARCHITEMS/SEARCH - (http://www.cablesondemand.com/Library/InfoManage/SearchItems.asp?FolderID=0&SessionID=%7B49AF1E54-E921-4A48-B035-22DE8AFD3673%7D&Action=Search&LookFor=bnc)

20% OFF cables in December with CABLE20 code.
Click to expand...

You know I wish I could find both the cables and panel mounts at the same place.
 
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Quick look ...



or buy 2 of these ..

Amazon.com: uxcell BNC Bulkhead Female to BNC Male RG316 RF Coaxial Extension Cable 50 Ohm 2 Feet for Video Signals,CCTV,DVR,Camera: Electronics

Buy uxcell BNC Bulkhead Female to BNC Male RG316 RF Coaxial Extension Cable 50 Ohm 2 Feet for Video Signals, CCTV, DVR, Camera: Digital Coaxial Cables - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com
 
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Show Me Cables
Sells everything you need in one place.

You'd likely get by using 75 ohm connectors or cable for antenna wire, but not the other way around (digital video for example.)

Keep track of your connectors or links because in some circumstances using a 50 where a 75 is needed will result in no signal, and it's easy to mix up adapters and cables. Also, each connection (joiners count twice) will add signal loss.
 
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