PFC430 Stand-Alone (with optional Altitude Pre-select)




This is a GPS that simulates a Garmin GNS 430W. It consists of standard GNS 430 controls and requires external software to operate. As of this writing we are offering RealityXP to drive the operation. It may optionally include Altitude Pre-Select controls.

This is a stand-alone unit. That means it has its own connection to USB directly and is not connected through the Avionics stack.
  • Some stand-alone 430s may be mounted in Avionics stacks. If it is mounted in an old-style serial Avionics stack in place of the GPS, it is a stand-alone unit. The serial Avionics stack does not include support for a 430 slave, even if it includes a serial-to-USB converter. This is a retrofit that should include a separate USB cable out the back of the stack.
  • Most stand-alone units are mounted in a separate box.

Until early 2011 all stand-alone 430 units use a U-HID board. As of May 2011 we are using a pair of our own USB Slave replacement boards instead. The firmware for these two configurations is completely different. To tell which configuration you have, remove the panel and look at the back.

If you see a single board that looks like this, you have the U-HID version.
PFC430 U-HID


If you see two boards with a ribbon cable connecting them, you have the newer version. (The ribbon cable must connect the two boards to each other and must not connect to anything else. If the ribbon cable connects the 430 to the rest of an Avionics stack, it is not the stand-alone but is the slave version. See this page for information on the slave 430.)
PFC430 Rev C

PFC430 Rev E



Non-U-HID version


To add to the confusion, the two boards on this version of the PFC 430 are called "Master" and "Slave". The board on the end nearest the CDI button is the Master and plugs directly into USB. The board on the end nearest the RNG buttons is the Slave and connects to the Master via a ribbon cable. In order to provide clearance for the USB cable the Master is either mounted upright or has an offset connector raising it above the Slave.

In the photos above, the board on the left (marked "B" in silver in the Rev C photo) is the Slave, the board on the right is the Master. During normal operation USB will be connected to the Master. This may also help:



Version 4

Due to recent hardware changes, we've updated the firmware to control backlighting via an integrated LED driver. Previous versions of the hardware had their backlights driven externally. As of Rev E, the hardware can be configured either way, and the firmware has been designed to drive any existing configuration. In addition, instead of the custom "B" slave that version 3 firmware used, version 4 uses the same slave as the Avionics Motherboard.

Right-click and select "Save Target As" (Internet Explorer) or "Save Link As" (FireFox) to download either of these files. Otherwise your browser will probably just display the raw contents. Your browser may try to save it as a text file, if so you'll have to rename it.
Bonus links:






Version 3

Version 3 uses its own, custom slave. It will work on Rev E hardware except that it will not drive the new LED driver.

Right-click and select "Save Target As" (Internet Explorer) or "Save Link As" (FireFox) to download either of these files. Otherwise your browser will probably just display the raw contents. Your browser may try to save it as a text file, if so you'll have to rename it.
Bonus links:






Avionics Stack USB



Avionics Motherboard and Slaves