the cables arrived today and fit correctly. So, at5 least for a Netgear wireless adapter - if you want to extend the antenna using an extender cable, this is correct one:
10-feet-RP-SMA-To-SMA-Wireless-Cable-RPSMA10MF STARTECH COMPUTER PRODUCTS 10 feet - RP-SMA To SMA - Wireless Cable - Antenna Adapter Cable (RPSMA10MF) $10.77
It came in four days, too.
Now, it will be interesting to see when I'm out in the world if wireless connectivity is better. Thinking of making an antenna mount with a magnetic base to set on roof, too...