Originally Posted by Jim_HiTek
I wouldn't worry about an 8 foot extension. Just be sure you buy good cable.
If I'm reading this right, we're not talking about an 8 ft extension. 8 ft total is ideally what's needed but the antenna comes with a "6 ft cable" so it's only 2ft short but the only extension readily available is 3m.
Not that it makes much difference but despite what US retailers list it as, I think the cable on the antenna is really 2m, not 6ft.
So with a 3m extension there will be 5m of cable total. That means about 3.6db at 3500 MHz or a little over half the power is lost in the cable. Maybe a little more because of the extra connectors. Admittedly that's worse case. Much better on the lower bands, especially band 71 around 600 MHz for T-Mobile where the loss would be insignificant.
Sorry, Lynn, I don't have a good answer. It would bug me to have to buy a 3m cable and leave most of it coiled up but I did a few searches as I'm sure you have and didn't find an alternative so you probably don't have much choice. There are probably companies that will make custom cables but I don't know what that would cost.
Another thought. You could probably do it with a collection of these or similar.
Those are quite cheap so probably dubious quality and unknown loss. If you search for "SMA extension cable" you'll find more expensive ones on specialized, professional sites. Whether it would be worth the trouble compared to the 3m cable from Poynting is hard to say.