Sure, Heres what you do:

1. Cut the antenna cable.

2. terminate both cut ends with a BNC end designed for mini RGB cable

(a clmbncm from www.signaturewire.com, you will need a cable pro linear compression tool, or similar. You can also use one of the many ends from Bitronics www.btx.com, if you have a radial compression tool.

3. use a female BNC to Male F adapter, 200-108 from www.dbldictributing.com

4. Use a f to f female coupler to connect what you just made to the RG6 end.

signature wire will have a mini rgb to F end soon, eliminating all of the adapters in the middle. one of these days, I'll hook this up with a 1000' spool of rg6 in the middle and see what happens.