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On 06.01.2012 15:01, NeilBrown wrote:<br>
<blockquote cite="mid:20120107000149.2a33016e@notabene.brown"
type="cite">
<pre wrap="">Also is there a simple way I can get a half-decent GSM antenna attached to
the bare board? With no antenna I get a signal strength of about '1' so I
can see the carrier but that is about all.
Can I just solder a few cm of wire onto the little square where the antenna
connects and get a strong enough signal to send/receive SMS and maybe a bit
of data?
(I've looked around for a cheap antenna with a U.FL connector but nothing
obvious surfaced).
Thanks,
NeilBrown
</pre>
<pre wrap="">
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</pre>
</blockquote>
Hi<br>
<br>
The easiest way to get at least some connectivity is to take a piece
of insulated wire and make a few bends to it.<br>
<br>
if you have a 15cm piece of thin insulated wire, measure 5cm and
bend 90 decrees. After the bend(longer piece of wire) wrap it around
a 3mm drill, a thick screw or something similar. Make 5 loops. Take
out the drill and pull the loops apart so the space between them is
2-4mm. Strip the longer end of wire so you can get a connection to
the pad. <br>
<br>
If you are careful you might be able to use a plastic clothes peg to
hold the wire so you don't need to solder. Works at least with
GTA02, but since I had the display in place, there wasn't much room
for the clothes peg.<br>
<br>
Definitely not the optimal antenna but the Freerunner antenna is
probably not meant for 2100 MHz either so lets not make it too fancy
:). I believe it's enough for some hacking and debugging.<br>
<br>
-Eikka<br>
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