[Gta04-owner] Externel UMTS antenna?

[Hermann Schwärzler]

Hi there,

sometimes I am using my gta04 as an UMTS-router. Unfortunately quite 
often in areas with poor reception. This forces me to revert to GSM, 
which gives me an almost unusable connection speed.

Near the modem (near the left hand lower corner of this image: 
http://download.goldelico.com/gta04/images/DSC01393.jpg) there is a plug 
socket that looks a little bit smaller than the one for the GPS antenna.
Is it possible to use it to connect an external antenna?
What type of plug is it? An SSMCX?

Has anyone of you tried this?
Any recommondations for an antenna?

Greetings
Hermann