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solder-pads on RPi3B+ for external antenna, is it for SMA connector ?

Fri Apr 20, 2018 5:50 am

hi,
i don't have a RPi3B+ yet, but on pictures, i saw that the solder-pads for an optional external antenna on the RPi3B+ are different than as on the RPi3B or RPi0w.

it seems the old solder-pads were made for an UMC connector.

i am wondering if the solder-pads on the new RPi3B+ were made for an SMA connector.

or is it still for the same connector as on RPi3B/RPi0w ?
and why on earth don't they make a proper solder-mask for the connector? only one pad is able to solder, all other regions are covered with the green solder.mask, you have to scratch away... :x
solder-pad-rpi3bp.JPG
solder-pad-rpi3bp.JPG (28.86 KiB) Viewed 457 times
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bensimmo
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Re: solder-pads on RPi3B+ for external antenna, is it for SMA connector ?

Fri Apr 20, 2018 4:32 pm

Start here and read what Jamesh says first.
viewtopic.php?f=63&t=207863&start=325#p1290966

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mahjongg
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Re: solder-pads on RPi3B+ for external antenna, is it for SMA connector ?

Fri Apr 20, 2018 5:45 pm

Its not for any "antenna connector", that is just wishful thinking (and illegal to do to boot).

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Re: solder-pads on RPi3B+ for external antenna, is it for SMA connector ?

Fri Apr 20, 2018 8:39 pm

mahjongg wrote:
Fri Apr 20, 2018 5:45 pm
Its not for any "antenna connector", that is just wishful thinking (and illegal to do to boot).
does it mean the solder-pads on RPi3B and RPi0w are only "test-pads" as well?
if not, how could the developer forget suche solder-pads on the RPi3B+ ?
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bensimmo
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Re: solder-pads on RPi3B+ for external antenna, is it for SMA connector ?

Sat Apr 21, 2018 8:18 am

Yes they are 'test pads only' in the official RPI stance, just like the PP pads. Otherwise they would be documented and probably populated and then an official antenna to buy as well. It would be used by people.

But makers do as makers do.

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Re: solder-pads on RPi3B+ for external antenna, is it for SMA connector ?

Sat Apr 21, 2018 11:41 am

oops...
all the reports i ever saw looked to me as would those pads be official points for external antennas... :oops:

ok, i don't want to ask further questions in that direction.

thank you for clarification.
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