GPS Antenna?

[goeasy123]

I have a new Raymarine GPS antenna on my older AIS650. The last antenna packed in. Using the AISPro2 app shows marginal satellite coverage with frequent 'fix lost' event. If I connect the AD510-1, that came with my Iridium GO to the AIS650 the coverage is much better. Any ideas why?

If I swap the antennas.... AD510-1 on the AIS650.... Raymarine antenna on the Iridium GO will that cause any problems?


Does the AD510-1 provide any other function to the I- GO?


Is there an after market antenna that performs as well as the AD510-1 that will work with the AIS650?


Is it likely that there is something wrong with the AIS650?

[Statistical]

The ADS510-1 isn't just a GPS antenna it also is an antenna for the sat phone signal as well. So the sat phone is going to need it for best reception.

Passive GPS antennas are pretty simple things as long as it has line of sight it should have good signal. Could just be the new antenna is defective (internal short). If coverage is better with the ADS50-1 I would start with the assumption that the issue is the new GPS antenna not the AIS650.