In order to use this HSPDA modem for smsage I need to adapt it to use an external antenna (as it is housed in a metal box..)
Following this post, it seems there is an antenna connector internally.
Opening the case it a little tricky, you can lever it open but you basically have to snap a one-way snap connector to get it open. I love invalidating warranties.
Looking closely, the antenna connector seems very similar to mmcx, although the pin goes in the other directions (male connector: female pin). Is this a reverse mmcx?
As it happens, I have an unused HSPDA antenna I took out of a dead dell laptop, which has an mmcx connector.
I made a pin to join the 2 female connectors from a tiny piece of wire.
Hooking it together to test, I needed to clamp the sim holder to the board.
It seems to work. I tested it using xhe220stat.
0 Responses to “Adding an external antenna to Huawei E220 modem”
Leave a Reply