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Sound Card Packet:

I've been working with packet over sound card for a bit and I'm working to design a circuit board diagram that can be quickly and easily etched and assembled to allow quick manufacture. I see these interfaces as invaluable for ARES/RACES communication due to their inexpensive nature and minimal visibility to the general public while passing traffic during an emergency operation. My current solution is a audio tone controller based on WA8LMF's design to eliminate the need for a serial or parallel TX control.

Info:
www.soundcardpacket.info
Packet Engine Pro
Hi-Speed Tone-Keyed Soundcard Interface for PSK31, SSTV, etc (WA8LMF)
ARRLWeb: Surfin': Making Printed-Circuit Boards Online
ARRLWeb: Surfin': Still Making Printed-Circuit Boards Online

Fedora Core 3 on Virtual PC 2004:

Maybe this will help someone (like me in the future) get Fedora Core 3 installed on Virtual PC 2004.

1. Install Virtual PC 2004 SP1, this takes care of problems with FC3 not booting into install.
2. Install FC3 with whatever options you want.
3. Boot the system.
       What I found when I booted the system is that it would come up to the login prompt and return
       INIT: Id "x" respawning too fast: disabled for 5 minutes
       where x was either 1, 2, or 5
4. Boot FC3 in rescue mode, Instruction on rescue mode here.
5. Rescue mode tells you how to mount the rescued FC3 install as root. Do so.
6. Run "wget http://download.fedora.redhat.com/pub/fedora/linux/core/updates/3/i386/kernel-2.6.10-          1.770_FC3.i686.rpm" in rescue mode after installation, then install this official kernel. The first boot will be slow, and smartd won't work (just disable it), but everything else works ok.
7. After the new kernel is downloaded, run "rpm -i kernel-2.6.10-1.770_FC3.i686.rpm" this will install the new kernel which works much better with VPC
8. Last caution, when setting up the X display I found that VPC really doesn't like "Millions of Colors" pick Thousands instead.
9. Have fun!

Now, these are just the steps I had to follow to get FC3 running in VPC. Although I've been around Linux in its various distributions for many years now, I'm no expert. If there is something here that I'm missing, let me know.
References:
www.fedorafaq.org
http://www.linuxquestions.org/questions/history/309660
http://vpc.visualwin.com/Notes/FedoraCore.3.Final.html
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=124251