GME Software: http://www.nissanpatrol.com.au/GME-software.rar
GME TX3400 User Manual: http://www.nissanpatrol.com.au/GME-TX3400-Manual.pdf
To connect the PC to the UHF besides the software you will need the programming cable, check out sarge1950au post on cable diagram located here.
Iif you want to purchase one here are some links
Old Style 25 pin Cable
http://www.radioworks.com.au/viewite...=0&productid=0
New Style USB Cable
http://cgi.ebay.com.au/USB-GME-UHF-P...-/160518349834
I use the software between my PC and TX3400 2 change the 10 extra channels.
I believe this software if extremely hard 2 get so if you have one of these old GME units i recommend saving this software