My Personal Notes On
Rig Setup & Software
Setup For WSJT Mode
The Whole Point Of All Of The Below Is To:
1. Be Sure Your Sound Card 3D-stereo
Is Turned Off
2. Do Not Overdrive Your Rig Audio In
3. Set The WSJT Tones
To The Same Output Level
4. Have The Correct Operating Bandpass For The WSJT
Tones
5. Alert You To The Fact That Some Rigs Have Trouble With WSJT
When
Using Speech Processors and
Transmit/Receive Equalizers.
I never noticed this till I upgraded to Win XP from Win98.
In WSJT options when I select the "Adjust
RX Volume Control" the mixer that
comes up shows the normal LINE IN + it now shows a
RECORDING mixer control.
BOTH will affect the incoming level to the wsjt sftwr while in the
recv
mode.
If you are having tbl with
not enough gain with your LINE IN all the way up see if u also have
this
RECORDING control and turn it up. Makes a ton of diff
here.
I use a soundblaster AWE32 sound
card running Win XP. You may need to (in the mixer) be sure
your advanced
controls are turned on (options/advanced controls) , and then click on the
ADVANCED
button to select RECORDING to have it shown in main mixer
panel.
IF: Windows XP starts up with your com port keyed in operate
In Windows XP just click on START and look
for WINDOWS UPDATE. Run a WINDOWS UPDATE.
After you have completed all
the latest Windows XP updates the com port trouble will go
away.
(be sure and boot your PC after doing all the Windows XP
updates)
If after doing the Windows XP updates you
still have your com port stuck in transmit try the below.
Normally just doing the Windows XP updates
will fix the trouble.
Windows XP
Com port Settings on my machine + info on WSJT software setup
option
Here is how
I have my Windows Devise Manager "properties/port settings" set for the Com Port
I use for
WSJT in Windows XP
Bits Per Second = 9600
Data Bits =
8
Parity =None
Stop Bits
=1
Flow Control
=Xon/Xoff
Advanced Tab
Use
FIFO Buffers 16550 UART = checked
*Note also in WSJT "Setup" be sure "Alernate PTT
Logic" has NO check mark by it
A.) IF OTHERS SAY THEY CAN NOT DECODE YOUR SIGNAL
1A.) Be sure "if" you
have any "3D Stereo, Surround Sound, or similar"
turned
On to "TURN IT OFF". Look in your
windows mixer "advanced options". In some
PC's it will not appear there but will
be found in a program folder for
your
particular sound card.
You may find
that your sound card and software does not support this so
it will not be a factor. You might also
need to check tone levels as below.
========================================================
B.) TONE LEVEL SETUP CHECKS
"If" you
have a problem with getting each of the (4) WSJT tones to be
of
equal value or "if" you find
that your "average" reading wattmeter
shows
a difference when sending out
muti-tones vs. a single tone try the below
(a PEP meter will not be able to
show any difference between multi-tones
vs. a single tone
).
*Note #1- It has been reported that some rigs work fine on
tone A-B-C-D tests,
and test for single
tone vs. multi-tones power out on an avg. reading wattmeter
with the speech processor turned on and
with ALC action.
It seems to depend
on the particular rig. If you have trouble try the below.
TIPS FOR GETTING THE (4) TONES (A-B-C-D) SET TO AN EQUAL POWER
OUT, PLUS WAYS TO CHECK FOR SINGLE TONE
VS. MULTI-TONES TO
BE SURE THEY
PUT OUT THE SAME AVG. POWER.
EQUIPMENT NEEDED
A power meter set to avg for the setup.
PRE-SETUP CRITERIA
(Suggested PC and Rig Initial Setup for trouble shooting purposes)
1B.) Turn OFF SPEECH PROCESSOR
"if" available.
May or may not be
needed. See note #1 above.
2B.) Turn OFF any XMIT
EQUALIZER "if" available.
May or may not
be needed. On Kenwood TS-2000 so far it has been found to
be needed to turn it
off.
Other rigs that have a form of XMIT
EQUALIZER may or may not need it turn
off when running WSJT.
3B.) Set rig bandpass to
2400hz "if" you have a way to pick different
xmit
filter bandpass. The max. frequency
transmitted by WSJT is 2205hz.
Too
narrow of a xmit bandpass could affect transmission of the
highest
frequency tone sent
"2205hz".
4B.) Set windows SOUND
CARD TONE CONTROLS to MID-RANGE for BASE
and TREBLE if available. Look in
windows mixer advanced settings or the
program folder for your type of sound card.
*Note- You may find that your sound card software does not support
this so it
may not be a
factor. You might also need to check tone levels as below.
5B.) "If" you have "3D
stereo or surround sound etc" and it is turned ON as shown
in MIXER ADVANCED SETTINGS be sure to
turn it OFF. Very Important "if"
you have it and it is turned on to turn it off.
See also section 1A.) above for other ways that might be needed to
find this
option in your PC "if" your
PC has it.
6B.) Set rig MIC GAIN to NORMAL SSB talking position
SETUP
(Set Windows Mixer For Initial Testing)
7B.) In WSJT put out
MULTI-TONES RRR and ADJ windows MIXER WAV OUT
from minimum to point where ALC meter
just starts to move. Then turn
MIXER
WAV OUT *down* slightly (so
that there is *no* ALC meter movement).
*Note- If your rig doesn't have an ALC meter, send
MULTI-TONE RRR and
adjust windows MIXER
WAV OUT from minimum to point where power output
of rig stops increasing. Then turn DOWN
MIXER WAV OUT until power out of
rig drops to
approximately 50%.
**ALC method works best.
(Set Tones A-B-C-D)
8B.) In
WSJT, SET TONES A-B-C-D for same power out ( useWSJT setup )
*but make sure you NEVER see any
reading on ALC meter during this step*. If
any indication on ALC meter, go back to
step 7B.) and reduce MIXER WAV OUT
further before continuing. Make sure all 4 tones show equal power out and
that
there is no ALC reading on any of
the tones before continuing to the next step.
*Note - If your power output varies by more than about
20% among the four
FSK441 tones,
you may wish to adjust amplitudes of the generated
audio
tones individually.
Amplitude settings can vary from 0.000 (off)
to
1.000 (full
amplitude). They refer to voltage, not power. So if
yourmeasured
powers are 100, 100, 100, and 200 Watts in the four
tones,you should set
the
amplitude numbers to 1.000,
1.000, 1.000, and 0.707
(because 0.707 squared is equal to
0.5).
*Note- If no ALC meter, make sure power out of rig never goes
above 75% of
max. output. If it
goes higher on any of the tones, reduce MIXER WAV
OUT
to keep below that level. Make sure
all 4 tones show equal average power out
and that this power is less than 75% of maximum output as noted before
continuing
to the next step.
IF YOU DO NOT HAVE A POWER METER SEE BELOW
*Note- It has been
reported that one does not need a power meter to adjust
the
tone levels, just use an
ampmeter and adjust to maximum current draw.
This works so long as
you don't try to increase the audio input beyond the
maximum current draw, lest you
start overdriving the audio and
splattering all over the band. Many power supplies have a built-in amp
meter
which is acurrate enough for
this purpose.
**ALC method works best.
(Set Windows Mixer For Final Testing)
9B.) In WSJT put out
MULTI-TONES RRR and ADJ windows MIXER WAV
OUT
from minimum setting up to point
where ALC meter *just* starts to deflect. This
should keep audio drive level to an
amount to reduce distortion
(if
you have a rigblaster inline you should be able to leave it at it's previous
drive
out setting this
way).
*Note- your "AVERAGE" vs. pep POWER OUT during this step to be
used for
compairison
to SINGLE TONE RRR check below in step 10B.)
*Note- If your rig doesn't have an ALC meter, send
MULTI-TONE RRR and adjust
windows MIXER
WAV OUT from minimum to point where power output of rig
stops increasing. Then turn DOWN MIXER
WAV OUT until power out of rig
drops
slightly.
**ALC method works
best.
(Final WSJT Setup and Check)
10B.) In WSJT put out SINGLE
TONE RRR and ADJ rig MIC GAIN if needed so that
the
SINGLE TONE RRR matches the
previous MULTI-TONES RRR on a
"AVERAGE"
power reading wattmeter
as in step 9B.). (It should be close by this point)
(may need to reduce mic gain slightly
to drop SINGLE TONE RRR to the previous
MULTI-TONES RRR "AVERAGE" power level).
*Note- You may or may not need to make any adjustments here.
11B.) Set drive to amp via power control on rig for desired output power level.
*Note - All 4 tones should now produce the same power out
plus muti-tones
should now
read the same as a single tone on an avg. reading watttmeter.