Wavecom W61PC V7.5.0 - Manual (Page 332)

322  Appendix WAVECOM Decoder W61PC/LAN Manual V7.5
NO. ITA-1 Alphabet LETTER FIGURE
27 0 0 0 1 0 V ‘
28 0 1 0 0 0 Q /
29 1 1 1 1 1 Unperforated tape
30 1 1 0 1 1 Y 3
31 0 0 1 0 0 L =
32 0 0 0 0 0 P %
Questions & Answers
I got the following error message "An unnamed file contains an invalid path". Why?
When installing any WINDOWS operating system, a “Temp” folder is automatically created in your root di-
rectory. The decoder software uses this folder to create the required temporary files. Please, check if a
‘Temp” folder is present. If not, just create a new one in your root directory, e.g. "C:\Temp".
Why is my CPU at nearly 50 percent utilization, even if no sophisticated mode is enabled?
If data compression encryption is switched on, switch off these features.
Why is my fast CPU at 100 percent utilization when I run the FFT mode?
For graphics intensive tasks (e.g. FFT), the PC CPU uses as much processing power as is available to max-
imize the display refresh rate. If there is more than one FFT display (i.e. from two or more decoder cards),
these will share the available processing power. This will not adversely affect the operation of any other
decoder cards in the system.
The IF output of my receiver seems not to be suitable with 10.7 MHz IF input of the decoder
card. Is there any solution?
The 10.7 MHz IF s of some receivers typically have a bandwidth of up to 500 kHz, and is intended for a
spectrum analyzer. This bandwidth is too wide for the decoder IF input.
A solution is a slight modification of the receiver, i.e. to install a 455 kHz output in the receiver (see
WAVECOM’s web site).
What is the maximum number of decoder cards that could be remotely controlled?
In theory, when accessing remote client cards, any number of cards may be controlled remotely from a
single computer. There are, of course WINDOWS resource constraints, and network bandwidth constraints
that would limit the number of clients that can be simultaneously connected. For the average PC hard-
ware, eight simultaneous clients is the recommended maximum.
Why does connecting to a remote decoder card sometimes take a long time?
Connecting to any decoder card on the network may take up to two minutes. The connection is made by
Microsoft DCOM, and the connection delay is the normal DCOM connection time. The wait cursor will ap-
pear while the connection is being made.
What should I do if a decoder card needs repair?
Contact your local distributor to arrange the return of your card. If necessary, it will be forwarded to
WAVECOM for repairs.
Signal Interference
General
All microprocessors and personal computers emit strong broadband noise signals which propagate along
the control and data lines. Strong noise signals are also often produced by printers without noise reduction
features. Common noise sources include the unshielded cables for printer, monitor and mouse.