TNC or SMA antenna adapter?

[phdezra]

Hi all.

I previously had a Linksys wireless router for which I had purchased a 9 dBi omni direcational high gain antenna. Since I am now using a Westell 327 routher/modem, I would like to put my high gain antenna on it. Unfortunately, the antenna jack on the Linksys (TNC) is not the same on the Westell.

The Westell is smaller - is this "SMA"?

If yes, what kind of adapter would I need to fit my high gain antenna on the Westell?

Would I need

A) RP-TNC Male to RP-SMA Female

or

B) RP-TNC Female to RP-SMA Male

Thanks.

Ez

[WrzWaldo]

Hi all.

I previously had a Linksys wireless router for which I had purchased a 9 dBi omni direcational high gain antenna. Since I am now using a Westell 327 routher/modem, I would like to put my high gain antenna on it. Unfortunately, the antenna jack on the Linksys (TNC) is not the same on the Westell.

The Westell is smaller - is this "SMA"?

Page 10 says it's SMA. (http://www.westell.com/content/sales/327W.pdf) Not RP-SMA, if yours is a 327W?


If yes, what kind of adapter would I need to fit my high gain antenna on the Westell?

Would I need

A) RP-TNC Male to RP-SMA Female

or

B) RP-TNC Female to RP-SMA Male

Thanks.

Ez
My guess would be RP-TNC Female to SMA Male.

[phdezra]

1) You're right. The manual does say SMA. But after scouring the Internet and eBay, it does not appear that "SMA" antenna exist. Just RP-SMA. Could the manual simply be using "SMA" to mean "RP-SMA"

2) Assuming it's correct and having now looked at my high gain Linksys antenna, I see that my modem is MALE and my antenna is female, so I think I need an adapter:

SMA female to RP-TNC male.

Do they make "SMA to RP-TNC" adapters? Where could I find one? I could only find "RP-SMA to RP-TNC" adapters which leads me to believe the manual meant to say RP-SMA?

Ez

[WrzWaldo]

See if you can find your SMA connector on this page.

http://wireless.gumph.org/content/3/7/011-cable-connectors.html

[M/Q]

I would like to make an alternative suggestion. Obviously I am not sure how much the 9dBi antenna cost you, but I have a good idea how much any adapter will cost you. I also know how much loss each half of a coaxial connection casts you in dBi gain (approximately .5dBi).

So, since we are referring to microwave frequencies and very low amounts of power. And loss is significant. If possible I would want to just replace the antenna or graft on the correct connector. If you are not comfortable replacing the antenna connector then by all means replace the antenna.

There are no adapters that I know that make the change you are looking for, could be wrong though. If you want to continue down this avenue, you will have to have get an intermediary adapter, which will double the number of connections just for that one joint. The first link is an additional one that describes the different antenna connectors. The second one is a link to a good source for DYI connector work.

http://ece-www.colorado.edu/~kuester/Coax/connchart.htm

http://www.fab-corp.com/home.php?cat=274