SN4500 Software Revisions

To download the latest software for the SN4500 please use the following form: 
Software Update Download

A2.06 - Released 4/24/2015

  • For units with MOD A hardware only. (Serial numbers 9-3250 and higher.)
  • Improved display performance at very low brightness settings.

A2.05 - Released 1/24/2014

  • For units with MOD A hardware only. (Serial numbers 9-3250 and higher.)
  • Added selection for Garmin GTN6XX/7XX to GPS-1 and GPS-2 maintenance pages. (Operation is identical to Garmin GNS430 selection.)

2.05 - Released 9/21/2012

  • Adds optional LNAV Roll Steering capability. (Feature is standard on new shipments. Older units require purchase of key code to activate following software update to 2.05.)
  • Improved external brightness control operation. 
  • Improved card stabilization from fluxgate from inverter failure when using ARINC 407 (XYZ) DG and internal slaving.
  • Improved electrical resolution of ARINC 407 bootstrap compass output to improve operation in helicopters using this output for a yaw damper. 
  • Added support for multi-channel DME. 
  • Improved display of reversionary attitude when using external AHRS. 
  • Added installer option for display of heading bug in white. 
  • Added installer option to remove pilot selection of auto-slew off. 
  • Added installer option for DME source when using XYZ TACAN interface.
  • Modified installer options for configuration module read/write operation. 
  • Improved fluxgate operation at high latitudes. 

2.01 - Released 3/25/2010

  • Change to localizer unflagging when using composite localizer input. 

2.00 - Released 3/19/2009

  • Reversionary Attitude Mode available as option when using Sandel SG102 ARHS or other ARINC 429 AHRS as primary heading source. 

1.05 - Released 11/20/2008

  • Added annunciators for GPS selected approach type.
  • Moved position of GPS Integrity annunciator.
  • Increased NAV database memory size to support larger number of airports in worldwide database. 
  • Changed operation when installed as Heading Repeater.
  • Added digital display for brightness level.
  • Added option for TACAN NAV receiver selection
  • Added support for NVIS operation.
  • Updated WSI Satellite Weather Interface.
  • Corrected possible resetting of unit. 

1.04 - Released 4/18/2008

  • Updated WSI Satellite Weather interface.
  • Corrected possible resetting of unit. 

1.03 - Released 12/21/2007

  • Added an annunciator for GPS Integrity (ARINC Label 261 only).
  • Associated the ILS Energize output with active GPS approach.
  • Added extended resolution for lateral guidance (ARINC Labels 116 and 326 only). 
  • Added support for WSI AV300/350 satellite weather receivers. 
  • Supports connecting USB cable while SN4500 is powered. 

1.02 - Released 3/27/2007

  • Corrected improper back course operation. 

1.01 - Released 11/7/2006

  • Commercial release.

1.00 - Released 2/9/2006

  • Initial release.