9
Operating Temp: -30C to +60C
Troubleshooting and Detailed Adjustment Procedures
- TROUBLESHOOTING -
These are the most common problems as reported by our
Technical Support Staff. If you do not find your problem
listed here, or if you are unable to resolve the problem, then
please refer to the Technical Support section of this manual
for instructions on contacting Technical Support.
Radio doesn’t transmit AND the SignaLink's PTT LED
is OFF - It is important to remember that the SignaLink
keys the radio automatically when it detects transmit audio.
If the PTT LED on the SignaLink is OFF, then it is most
likely because the signal from the soundcard’s speaker
output is not getting to the SignaLink, or because the signal
level is too low. Please check the following:
· Sound card not functioning properly - If you are not
sure that your sound card is functioning correctly, then
you should perform the soundcard test following this
section.
· Sound card levels set too low – Repeat the procedure
for setting the sound card audio levels. If this does not
resolve the problem, then set the Master Volume
control to 90-95% of full volume (instead of 75%), and
try again. If a higher volume setting works, then you
should find the lowest setting that works reliably, and
then have a friend verify that your transmitted signal is
undistorted.
· Soundcards with Digital outputs – If your soundcard
has digital outputs, then you will need to disable them
for the SignaLink to work properly. Most digital
outputs can be disabled by running the software that
was supplied with the sound card, and selecting
“Disable Digital Outputs”. If you are not sure how to
do this, then please consult the instruction book that
came with your soundcard or PC.
· Sound card cables reversed – Make sure you have not
reversed the mic/spkr cables to the sound card, and that
they are plugged into the correct sound card jacks. The
Speaker Output jack will be Green if color-coded, and
the Mic Input jack will be Red or Pink. Most sound
cards are poorly marked so you may need to refer to
your computer’s manual to verify the correct jack
location.
Radio doesn’t transmit even though the SignaLink's
PTT LED is ON - If the SignaLink's PTT LED turns ON
but the radio doesn't switch to transmit, then you have
jumpered the PTT signal incorrectly on JP-1. This should
not be an issue if you tested the PTT line as outlined in the
jumper section. If you find ANY jumper connected wrong
then we recommend that you go through the entire jumper
installation procedure again.
Radio transmits but there is no power output, or it is too
low – Verify that your radio’s “Forward Power” (sometimes
called “RF Power” or “Carrier Power”) control is set to
maximum. If the SignaLink is attached to your radio’s Mic
jack, then power is normally adjusted using the radios Mic
Gain control. If this control is set to maximum and you are
not able to obtain the desired transmit power level, then you
may need to set the computer’s Master and Wave Playback
controls higher, and/or adjust the SignaLink’s internal “TX
Level” control for more output. If the SignaLink is attached
to your radio’s Data or Accessory Port, then the Mic Gain
control may not have any effect on the power output. If this
is the case with your radio, then you will need to set the
computer’s Master and Wave Playback controls higher (if
possible), and/or adjust the SignaLink’s internal “TX
Level” control for more output. You may also need to
increase the Data/Accy Port gain on your radio. If
available, this can be adjusted via a menu setting on most
newer radios.
My Transmit signal is “wide” or distorted – This is
generally the result of over-driving your radio. Verify that
your radio’s speech processor/compressor is turned OFF.
Your radio’s “Forward Power” control (sometimes called
“RF Power” or “Carrier Power”) should be set to maximum.
If you have lowered this control to decrease your transmit
power, then you more than likely have not set the audio
levels correctly, and are overdriving your radio. Follow the
“Setting The Audio Levels” procedure to correct this
problem. If the above mentioned radio controls are set
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