Key differences between the versions of Portable Navigator.

Features PN Express PN Survey PN Server PN Logger
Wi-Fi Web Server for remote display devices      
Extended Configuration Editor with Presets        
Vector Charts
Larger vector chart size    
Additional Chart line styles    
Copy, cut, and paste chart editing tools    
Raster Charts, Chartlets and other images
Automatic Raster Image display on proximity    
Video information Waypoints    
Multiple Chart Views (2) (4) (4) (4)
Survey track line layout tools  
Automatic track line Steering Waypoints  
Chart Waypoint editing with Multimedia WPs
Animated Waypoints (Night Vision)    
Variable Vector Chart Viewing Angle
Vector Chart Head Up while navigating
Perspective Vector Chart View    
Adjustable Viewpoint Altitude  
Selectable Perspective Viewpoint    
Chart Look Ahead Mode    
Skeletonised Playable Position Logs
Variable Format Survey Text Log including Event fixes Fixed
Text Log values and Events can be plotted on chart
Voyage Description Files associated with log files    
Data Trend Plot from Text Log with data zoom  
Large Data Plot window with measure tools  
Mouse wheel support
Remarks / Screen shot Logs (uses MS Word)  
Maximum  Simultaneous AIS Targets on the screen 60 120  
Playable AIS Logs  
AIS RADAR Display and Target Database  
AIS SART emergency beacon decode and display  
Lights on AIS target vessels (Night vision)    
AIS Incident Analysis and Save    
AIS live Collision Potential Analysis    
Tidal Atlases and Course to Steer
Tidal atlas Auto Loading    
COM Ports Supported 1 4 (Nmeapro) 4 (Nmeapro) 4 (Nmeapro)
Towed Transducer Geometry  
Transducer array boom geometry for up to 4 transducers   (1,2 or 3) (1,2 or 3) (4)
High Speed Analogue Inputs 16bit 30 samples / sec 4-6 channels      
High Resolution Analogue Inputs 24 bit 1 sample / sec 4-6 channels      
Magnetic environment auto calibration      
Magnetic compass variation calibration
Magnetic compass deviation calibration      
NMEA sentences supported GGA,RMC Any   Any
AIS sentences and AIS message support Basic All + SART All + SART  
Auto pilot output sentences supported Standard Any Any Any
Programmable Video Overlay "blackboard"    
Chart Making Tools / Downloads