GPS antennas

[jddavis16]

Is there a distance requirement between GPS antennas? If so how far apart should they be.

Thanks.

[FlyingRon]

There are shading and multipath issues to be concerned with but six inches should do it.

[TedK]

If you are using active antennas then there is the potential for electromagnetic interference between the two antennas.

if you really needed to put the two antennas in close proximity, I would try and see if they interfered with each other before you permanently mounted them.

Assumming you you had one system already installed, I would go to that systems satellite in view and signal to noise (C/N) page and see what the values were with system two off. With system two's antenna temporality mounted in its intended position, I would turn on system two and see if you had any changes in systems one's C/Ns. If yes, you probably need more antenna separation.