AirNav Systems Forum

AirNav ShipTrax => AirNav ShipTrax Discussion => Topic started by: Cumulus on February 07, 2012, 10:30:14 AM

Title: Receiver Sensitivity
Post by: Cumulus on February 07, 2012, 10:30:14 AM

Hi,

What is the quoted Receiver Sensitivity and the nmea data rate.

Rgds

Peter

Title: Re: Receiver Sensitivity
Post by: Lou on February 11, 2012, 04:12:07 PM

I don`t know what the sensitivity is in numbers but I can tell you that it is more sensitiive than my NasaMarine AIS2its good for an extra 3/4 nautical miles,thee baud rate is 38400.Regards Lou

Title: Re: Receiver Sensitivity
Post by: tarbat on February 11, 2012, 05:33:34 PM

It's also more sensitive than my Comar AIS-2-USB receiver.  I did some testing during beta development, and found the ShipTrax hardware typically received and decoded 40%-50% more messages, and range was increased by 3-4 miles.

Here's the analysis I did:

(http://farm8.staticflickr.com/7063/6857463511_e3f00f7de5_d.jpg) (http://www.flickr.com/photos/tarbat/6857463511/sizes/o/in/photostream/)
http://www.flickr.com/photos/tarbat/6857463511/sizes/o/in/photostream/