In Case Of Difficulty - Ten-Tec Argonaut VI 539 User Manual

6. In Case of Difficulty

While we cannot cover every possible
problem, here are some hints for dealing with
some potential difficulties.
obvious. Is your dc power source okay?
Check power supply, cable and connector(s).
Is the 25 ampere fuse loose or missing?
Antenna problems? Try a dummy load. Is a
proper antenna connected?
external antenna switch connected and
properly set? Have you double-checked the
Argonaut VI's many
including those in the Configuration menu,
for your intended mode of operation? Have
you checked how the optional Filter's are
installed and confirmed their installation
order within the Configuration Menu?
One problem that results in no audio or poor
audio is the fact that sometimes you make an
adjustment to a setting and subsequently
nothing seems to work properly anymore. The
method that resolves setting issues that you
just can't find, is to perform a Master Reset.
This was discussed
Operations" section of this manual.
Problem: No Receive Audio
Is the AUDIO (AF) turned up?
Is RF GAIN turned down? Is squelch
activated? SQL will appear in block letters
on the screen. Press FNC then FAST/SQL
and check SQUELCH level.
Is the speaker wire internal to the rig broken
or disconnected? (Have you pulled the covers
off recently?) Try headphones to see if audio
returns.
Is NR off? Under some circumstances, noise
reduction can cover band noise completely,
leading the user to think no audio is coming
from the speaker.
539 / Argonaut VI Users manual
Part #74479
Printed in USA
Check the
Is any
control settings,
in the "General
Release 0.10 – November 13, 2012
31
Problem: Distorted SSB transmit – or –
Perceived RFI in the shack.
Be certain the mic gain is set properly. The
ALC LED should flash on voice peaks, but
not remain continuously lit in SSB modes.
Check the setting of the speech processor. An
excessively high setting can reduce audio
quality.
A frequent cause of a distorted SSB signal is
inadequate RF grounding resulting in RF
feedback. Common RF grounding problems
are no ground connection, or too long a lead
to a good ground. Many problems relate to
the lack of an RF station ground, as
contrasted with a safety ground connection.
We recommend bonding all equipment
chassis together with short heavy metal braid
or strap. Make these connections from
chassis ground lug to chassis ground lug and
connect the last piece in the chain feeding the
antenna to a good earth ground. This lead
needs to be as short as possible. Lengths near
¼ wavelength on any band used can be
particularly troublesome when the far end is
connected to earth. It is very important that
the external power supply and the transceiver
and all equipment with grounding lugs are
properly grounded.
Another potential cause of distorted SSB
arises when the station is in the near field of
the antenna. This is a problem many
apartment dwellers face.
Distorted SSB transmit can result from
chassis ground and signal ground from the
microphone being tied together to a common
connection. This is a common problem with
third-party microphones. Assure the chassis
ground and signal
microphone is separated.
RF can also be induced into the transceiver on
any unshielded wires.
ground from the