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Internal antenna of Adafruit ultimate GPS breakout board not
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Internal antenna of Adafruit ultimate GPS breakout board not

by gaurav123 on Fri May 02, 2014 6:52 am

Hi,
I have bought adafruit ultimate GPS breakout board recently.
I have encountered problem in the internal antenna, it doesn't show value in serial monitor(the code is the 'Blank' which is present in Adafruit GPS library).
It doesn't even work outside(open environment). When I connect an external antenna it works in pen environment but not inside.
I have sent the photo of the connection of GPS with arduino MEGA 2560.
Waiting for your reply solution.
Thank you
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gaurav123
 
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Re: Internal antenna of Adafruit ultimate GPS breakout board

by adafruit_support_rick on Sat May 03, 2014 8:28 am

It prints nothing at all in serial monitor with the blank sketch? That indicates that you have a connection problem. Even without a fix, there should be serial data coming from the GPS module. Try reversing the TX and RX jumper wires.

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Re: Internal antenna of Adafruit ultimate GPS breakout board

by gaurav123 on Fri May 09, 2014 2:40 am

hi,
I have tried all possible ways in order to make my GPS work without external antenna, I have tried interchanging RX and TX wires, I have tried the parsing code still I get 0,0,0,0 readings in serial monitor only after 3-4 minutes I get correct time and date values(that too sometime) . So I want to know whether I can connect any chip antenna with balun or without balun(for tuning), plase suggest some solutions for chip antenna as my design has to be small within 3.3 x 3.3 cm^2 .
Thank you
gaurav123
 
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Re: Internal antenna of Adafruit ultimate GPS breakout board

by adafruit_support_rick on Fri May 09, 2014 6:20 am

The only external antenna we have is this one. Unfortunately, it's larger than 3.3x3.3cm. I don't have any other recommendation.
https://www.adafruit.com/products/960

We can try replacing the module. Please email support@adafruit.com with a link to this thread for a replacement

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Please be positive and constructive with your questions and comments.