A N connector is designed for 1KW power and is half an inch in diameter :) ...
It seems difficult to find the exact type of this connector even if it's present on a high number of phones. It may be a MC-Card, Hirose MS-147 is also probable:
http://szwholesale.com/ebay/2/Antenna/3G-combination/antenna_connector-1.jpg
You might find a short pigtail that converts this connector to SMA, then a more classical SMA-anything , maybe SMA-N or SMA-BNC followed by BNC-N.
Regards Sebastien
On Thu, May 19, 2011 at 7:27 PM, Gianni Tedesco gianni@scaramanga.co.ukwrote:
On Thu, 2011-05-19 at 19:03 +0200, Sylvain Munaut wrote:
Hi,
So how does it work "off-air"? I'll need a shielded cable and attach
it
on to the antenna pads of the handset?
You need to use a RF 50 ohm coax cable. The Racal has a N connector and the phone should have one has well. I don't remember the exact reference of the C123 connector but I know digikey has adapter to SMA for it, so I use a N to SMA then an adaptor that depends on the phone.
The unit I'm getting should come with a "BNC to N-Type connector" but I thought n-type was maybe 2cm diameter? The connector on the phone (C139) is tiny, I have just uncovered it...
If I understand correctly, I need a special connector for the phone and then maybe another one? eg. N to SMA depending on what the special connector provides...
Looking on the list archive someone suggested:
http://shop.meconet.de/artikeldet.php?suchspeicher=110448&proid=550&...
But no reports as to whether it worked or not.
Probably I should just get a cheap car-antenna for the phone and rip the connector out for my own cable...
Thanks
Gianni