Hi,

If your computer has a PC (also called a PCMCIA) card slot, I strongly
recommended the Socket Serial I/O PC Card found he
http://www.cumulus-soaring.com/socke...al_I/O_PC_Card
I have recommended that card for years and I've never had a customer say it
didn't work for them. It is a bit pricey, but it is an actual serial port,
not a USB adapter. It is worth every penny.

However, my latest laptop did not have a PC card slot so I was forced to try
to utilize its Express Card slot. I bought an SIIG CyberSerial ExpressCard
and it works OK. I thought it was an actual serial port, but when I
connected it to my PC I noticed that a new USB connection was created! But
it does work well for me for transferring waypoints and flight logs, but not
so well for firmware upgrades. On the same PC I have also tried using a USB
to RS-232 adapter and it rarely works.

Since I do firmware upgrades to soaring instruments I have relied on using
my home desktop computer with an actual RS-232 serial card for the serious
work of firmware upgrades. I was surprised when my latest desktop did not
come with an RS-232 serial port. I had to order a $30 card. It works great
though.

Good Soaring,

Paul Remde
Cumulus Soaring, Inc.
http://www.cumulus-soaring.com


wrote in message
...
Hi John,
I use USB Serial Adapter CP-US-03. Does the Job. I use to it to
dowload flights from the Volkslogger to the laptop. It also comes in
handy to hotsync my Tungsten T to that laptop which was not supplied
with serial as you obviously discovered.
Cheers
Marc