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T R O U B L E S H O O T I N G
6 Troubleshooting
If you experience a problem with your Signal Hound, please try these troubleshooting
techniques before contacting us:
1) Your Signal Hound Is Not Sweeping Properly
Try this first: Close the Signal Hound software. Unplug the USB cable and
⇒
any external 10 MHz or trigger cables from the Signal Hound and wait 15-30
seconds. Plug the USB cable back in. Check that both ends of the USB cable
are firmly seated and the Signal Hound LED is green. Launch the Signal
Hound Software. Try your sweep again.
Still not working? Unplug the USB cable from the Signal Hound. Disconnect
⇒
all USB devices from your PC. Reboot your PC. Wait until the PC has
completed rebooting. Plug in the Signal Hound's USB. Launch the Signal
Hound Software. Try your sweep again.
Still not working?
⇒
2) Your Signal Hound LED is off
Make sure the USB cable is connected at both ends, your PC is on and the
⇒
USB drivers are installed properly.
Is your PC or laptop configured in low power mode? The Signal Hound is
⇒
a high-powered USB device and may be shut down in some power-
saving configurations.
3) Your Signal Hound doesn't find a signal
Is it a swept or transient signal, a pulse or a rapidly modulated signal? If so,
⇒
and you know the frequency of the signal, set up for a 200 KHz span or less,
then turn image suppression off. This disables the image rejection algorithm
which will reject data if it has moved or disappeared when the image is
checked (it also allows the image frequency through, which is 21.4 MHz above
the CENTER FREQ). You may also try MAX HOLD to capture transient
signals.
Contact technical support at
30
Chapter
6
http://www.signalhound.com
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