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This software runs
on Windows.
- Turn the Elecraft K3 transceiver “Off”.
- Connect “Line In” port on rear of
transceiver to computer “Line Out” using a
monaural cable.
- Connect “Line Out” port on rear of
transceiver to computer “Line In” using a stereo cable.
- Turn the Elecraft K3 transceiver “On”.
- Press the “MENU” button briefly and “MAIN”
will display on K3
Turn the “VFO B” dial until “MIC SEL” is
displayed
Turn the “VFO A” dial until “LlnE ln” is displayed
Press the “MENU” button briefly and the “MENU” will close
- Press and hold “MENU” button until
“CONFIG” is displayed on K3
Turn the “VFO B” dial until the “RS232”
item is displayed
Turn the “VFO A” dial until the baud rate is 38400 b
- Set transceiver to ½ maximum transmit
power level
Press the “VOX” button to
Set “VOX” to On
Press the “MODE” button
repeatedly to
Set “MODE” to Data
Press and hold the “DATA
MD” button until “45 bPS” is displayed on K3
Turn “VFO B” dial until
“AFSK A” is displayed
Press and release the
“DATA MD” button
The transceiver is now
set for “AFSK RTTY” operation as long as the “MODE”
remains set to “TX DATA”
Software Setup:
Note: While
following these next instructions, the MMTTY software will
constantly close the “Option(O)” menu and you will have to return to
the menu bar and click on “Option(O)” to continue the necessary
setup.
From Main
Menu Click on “Option(O)”
Select “Soundcard Output Level(V)”
Set all between marks 5 & 6
counting from top
From Main
Menu Click on “Option(O)”
Select “Soundcard Input Level(I)”
Set all between marks 5 & 6
counting from top
Checkmark “Line In”
If this is not set, MMTTY will NOT receive
RTTY
From Main
Menu Select “Option(O)”
Left click on “Test”, if you wish to test the interface
Characters will be displayed on the MMTTY screen if the software
is working
Left click on “Test” again, if you wish to stop the interface test
From Main
Menu Select “Option(O)”
Do NOT select “Disable
Transmission”
From Main Menu Select “Option(O)”
Click on “Ways to
send(S)”
Click on “Character
Out”
From Main
Menu Select “Option(O)”
Do NOT select “Auto send CR/LF…”
From Main Menu Select “Option(O)”
If there is not a checkmark in
front of “Word wrap on keyboard”,
left click on the text
From Main
Menu Select “Option(O)”
Click on “PTT Timer…”
Set to “0” (turns PTT off)
Click on “OK”
From Main
Menu Select “Option(O)”
Do NOT select “Running Mode”
From Main
Menu Select “Option(O)”
Left click on “Setup TNC
Emulation” (if desired)
Configure the menu as
follows:
Port
None
Band 1200
Data Length 8 bits
Stop
1 bit
Parity None
Flow Control
Check XON/XOFF
TNC Type KAM
Local Echo After
sending
Click on
“OK”
From Main Menu
Select “Option(O)”
Left click on “Setup Logging
(L)…” (if desired)
From Main
Menu Select “Option”
Select “Setup MMTTY (O)…”
Select
“Demodulator” tab
Note: The “Demodulator” settings are
program defaults
Set “Discriminator
Type” IIR resonator
Set
“Mark” 2125
Set
“Shift” 170
Set
“BW” 60
Do NOT
check “Reverse”
Set “Limit
Amp” Checkmark “AGC”
Do NOT
check “Over Sampling”
Set
“Gain” 200
Set “Smooth LPF”
Check “FIR av”
Set
“Freq” 70
Set “Ham
Default” 2125 / 170
Click on “BPF” tab
BPF tab
Do NOT check
“On”
Set
“Tap”
56
Set
“Fw”
100
Checkmark
“AFC Connection”
Do NOT click
“Pre-Filter Show”
Click on “LMS/Notch” tab
Checkmark
“Notch”
Set
“Tap”
72
Do NOT
checkmark
“Two notches”
Select “AFC/ATC/PLL” tab
Set “AFC” Options
Checkmark
“AFC”
Select
Shift “Fixed”
Set
“Time” 8
Set
“SQ” 32
Set
“Sweep” 1
Do NOT
check “ATC”
Set “ATC Time”
4
Set “PLL”
Options
Set “VCO
Gain” 3
Set “LoopLFP (IIR)
“Order” 2
“FC” 250
Set “OutputLPF (IIR)”
Set
“Order” 4
Set
“FC” 200
Select “Decode” tab
Set
“BaudRate” 45.45
Checkmark
“Majority Logic”
Do NOT
checkmark “Ignore framing error”
Select
“BitLength” 7bit
Select
“StopLength” Rx=1bit, Tx=1.5Bit
Select
“Parity” None
Select “Default
RxStop bit” Rx=1bit, Tx=1.5bit
Select “BAUDOT
Codeset” S-BELL
Select “TX” tab
Set
“DIDDLE” LTR
Do NOT
check Random
Do NOT
check WaitTimer
Checkmark Tx BPF
Do NOT
check Tx LPF
Set “TxBPF
Tap 48
Set “TxLPF
Freq 100
Set
“TX” UOS
Set “Your Callsign”
Callsign (replace with your callsign)
You can edit Macros
now or later
Do NOT
check “Convert Immediately”
Set “PTT
Port” COM-7
(virtual COM Port)
Do NOT
check “Invert Logic”
Select “Radio Command” box
Set “Port
definition”
Port None
Baud 38400
Char wait 50
Set “Data
length” 8 bits
Set
“Stop” 1 bit
Set
“Parity” None
Set “flow
control” XON/XOFF
Set “DTR/RTS”
Checkmark PTT
Note: “Commands” are
entered automatically when you select “Kenwood” in the radio box
located in the lower left corner of the window.
Set
“Commands”
Init leave blank
Rx RX;
Tx TX;\w10
Select “VFO
polling” Kenwood (use auto info)
Set “Frequency
offset” OFF
Set “Polling
interval” 1
Click on “OK” to
return to “TX Window”
Select “Font/Window” tab
You will probably
not make any changes in this window, but you can experiment with
fonts, if you wish.
Do checkmark the box
“slash zero”.
Select “Misc” tab
Set “Sound Card
FIFO”
Set
“RX” 12
Set “TX” 4
Select “Priority”
box Critical
Select “Device Id”
-1
Select
“Source” Mono
Select
“Clock” 11025
Select “Tx
offset” 0.00
Checkmark
“Save window location”
Select “Sound
loopback” Int.
Select “Tx
Port” Sound
Note regarding the
“Tx Port” selection:
Sound selects AFSK (sound
card mode)
Sound + COM-TxD (FSK) selects both modes of operation as
it enables
the audio tones for monitoring
COM-TxD (FSK)
selects FSK (UART mode)
(only if the proper COM number is selected for PTT on the TX tab
Select “System Font”
Window Times New Roman
Set 0
Fixed Pitch Courier New
Set 0
Click on “OK” to
save modifications and return to main MMTTY window.
Main MMTTY Window:
In the “Control”
section of the window you will see a number of buttons, which can be
turned on and off by clicking on the button. When the button is
selected (On), the button color will be light gray.
FIG should be OFF
UOS should be ON
TX will be ON or OFF
depending upon sending or receiving
TXOFF will be ON or OFF depending
upon sending or receiving
The boxes in the
“Demodulator (IIR) section of the window should read as follows
and/or appear up (not selected).
Mark 2125 Hz
Shift 170 Hz
BW 72 Hz
AV. 70 Hz
Type should be OFF
Rev. should be OFF
Ham Click button at
least once to set Mark to 2125 and Shift to 170
SQ should be OFF
Not. should be OFF
BPF
should be OFF
ATC
should be OFF
NET should be ON
Causes MMTTY to transmit where it last
received
AFC should be ON
Type text in the
bottom panel and press F11 to transmit.
Or
Setup and use the
“Macro” keys (recommended)
Suggested Macro key
setup:
|
F1 |
CQ |
\RYRY CQ CQ
CQ DE %m CQ CQ DE %m
RYRY CQ CQ CQ DE %m CQ CQ DE %m K\ |
|
F2 |
Reply |
\%c RST is
%r %r \ |
|
F3 |
RST |
\%c tut u de
%m \ |
|
F4 |
N3ME |
\%m %m %m\ |
|
F5 |
Name |
\my name is
YourName\ |
|
F6 |
BTU |
\%c btu de
%m kn\ |
|
F7 |
Final |
\%c 73 de %m
qrz\ |
|
F8 |
Self |
\ Your text
information\ |
|
F9 |
QTH |
\QTH is:
Town:
County:
State :
Grid: \ |
|
F10 |
Equip |
\Equipment
here is:
Elecraft K3 Transceiver
Ant 1:
Ant 2:
Ant 3:
Amp:
Software: MMTTY v1.65 |
Frequencies:
|
160 |
1.800 – 1.842 |
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80 |
3.580 – 3.645 |
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|
|
3.590 |
DX |
|
40 |
7.000 – 7.100 |
|
|
40 |
7.020 – 7,040 |
DX |
|
30 |
10.130 – 10.140 |
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20 |
14.080 – 14.099 |
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|
15 |
21.080 - 21100 |
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10 |
28.080 - 28100 |
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6 |
50.7 |
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