i've noticed my Simrad NSS8 GPS Displays have changed when displaying N2k GPS data from my Garmin 547xs. Not sure what if anything things means or how it effects other Navico products. I have my Garmin 547xs connected via NMEA 0183 to my esisting SH GX2100 VHF/AIS radio and nothing has changed there from when I had it connected o my Garmin 740.
The new 400/500/700 series can use the Russian GPS System GLONASS that can be selected either on/off thru software functions. That is a difference from the previous models in these Garmin series. Not usre if this is the reason for some of the GPS data display anomalies I'm seeing below.
New Garmin GPS capabilites ......
Here's what I'm seeing .......
Previous display of N2k GPS data being received by my NSS8 and my Garmin 740.
Note ..... the display shows satellite strength bar readings of the data being received from each satellite from the Garmin 740.
Here's the display I seeing on my NSS8 from my Garmin 547
Note the absence of satellite strength bar readings ..... all the other info is the same with the exception of the SNR avg all: where there is no data
The NSS8 and the 547 display each others N2k devices as they did in my previous install
NSS8 740 install ....
NSS8 547 install
The other difference I noticed on the Navigation page display is when I would have the 740 selected as my source for n2k GPS data it would show on the data bar itself ....
Now it doesn't ...... I was using the 547's N2k positional data in this screenshot
My Standhard Horizon GX 2100 VHF/AIS radio is wotking fine using the NMEA 0183 GPS data from my Garmin 547. No differences from the 740 to the 547.