April 21, 2005 01:59
I've just received an email from Rich at GPSNavX confirming that their software works with the Nasa AIS receiver (although there are a few minor issues.)
Begin forwarded message:
> From: Tom MacNeil <tamacn@earthlink.net>
> Date: April 20, 2005 6:05:35 AM PDT
> To: Ray Rich <gpsnavx@mac.com>
> Subject: AIS Receiver Testing
>
> Hi Rich,
> Spent 4 days testing out the NASA AIS Receiver.
>
> For the most part I think it worked pretty well. The only problem I
> can find is missing names and calls. You had mentioned something about
> this before. This seem to be a problem, perhaps you may have a
> solution... (after talking to you I understand names are transmitted
> once every 20 min. Can we hold onto them for three cycles before
> graying them out?)
>
> The NASA receiver also puts out an extra sentence. The AIS window
> shows a yellow circle (along with the green) and I assume that is info
> that GPSNavX can't use. Since GPSNavX users will probably purchase
> this receiver in greater numbers, would it be worth looking into what
> this sentence provides?
>
> I loaded the program they sent along with it using VPC. Here is the
> info the NASA is capable of delivering.
>
>
> It would be great if we could get all the data... destination (was
> accurate up here) width and draft and maybe MMSI for DSC.
> I was able to get incredible distances from the system. All the way
> from Port Angles to Howe Sound about 70 miles (I was in the middle
> with my antenna on top of a 55 ft mast).
> I received as many as 60 contacts in a session.
>
> When you start the receiver it acquires the contacts
> immediatly...Names can take as long as 20 min to fill in. The system
> seemed to have a much harder time with the names (probably only gets
> one shot at them)
>
> Here is a typical screen shot of cruising grounds in BC canada
Begin forwarded message:
> From: Tom MacNeil <tamacn@earthlink.net>
> Date: April 20, 2005 6:05:35 AM PDT
> To: Ray Rich <gpsnavx@mac.com>
> Subject: AIS Receiver Testing
>
> Hi Rich,
> Spent 4 days testing out the NASA AIS Receiver.
>
> For the most part I think it worked pretty well. The only problem I
> can find is missing names and calls. You had mentioned something about
> this before. This seem to be a problem, perhaps you may have a
> solution... (after talking to you I understand names are transmitted
> once every 20 min. Can we hold onto them for three cycles before
> graying them out?)
>
> The NASA receiver also puts out an extra sentence. The AIS window
> shows a yellow circle (along with the green) and I assume that is info
> that GPSNavX can't use. Since GPSNavX users will probably purchase
> this receiver in greater numbers, would it be worth looking into what
> this sentence provides?
>
> I loaded the program they sent along with it using VPC. Here is the
> info the NASA is capable of delivering.
>
>
> It would be great if we could get all the data... destination (was
> accurate up here) width and draft and maybe MMSI for DSC.
> I was able to get incredible distances from the system. All the way
> from Port Angles to Howe Sound about 70 miles (I was in the middle
> with my antenna on top of a 55 ft mast).
> I received as many as 60 contacts in a session.
>
> When you start the receiver it acquires the contacts
> immediatly...Names can take as long as 20 min to fill in. The system
> seemed to have a much harder time with the names (probably only gets
> one shot at them)
>
> Here is a typical screen shot of cruising grounds in BC canada