external wifi antennas in laptops
Ed wrote in
. 192.196:
Many laptops now-a-days have mini-pci wifi internal wifi
cards for
wireless internet. Laptops such as the IBM Thinkpad series
apparently have an antenna built into the top of the
display, which enhances wifi signal.
Does anyone have any idea what type of antenna is used?
A neighbor has
a wifi coverage problem and he says he measures a (DC)
short circuit at the little coax coming from this built in
antenna. I suspect this might be normal, but would like
further opinion here. Thanks.
Ed K7AAT
Be extreeeeeeemly carefull here, I know you said DC load tested
the antenna but was it unplugged? More then once in my younger
dumber days I sent the voltage comming out of the Volt meter
[digital] hap hazardly into the final output of the radio, that
was more then enouph to poof the transmitter chip, now it's
toast. I would never believe the amp/volts comming out of a
small digital test meter would roast the finals, but it did.
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