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Is it a K42/K44.... no it's not but I use chipsets from K1EL perhaps the most advanced CWModem on the market today and there are partial kits available as well.
Is it a K42/K44.... no it's not but I use chipsets from K1EL perhaps the most advanced CWModem on the market today and there are partial kits available as well.
The army knife K42/44 CWModems are one of the advanced CWModems on the market despite we have only two lines of text and not have a word breaking function, the new CWModem has a word breaking function so words will not break in parts on the screen.
The newest CWModem with Steve's (K1EL) chip sets is not a cracked or copied but legal firmware and has the same functions but there is more:
Name of the new device is MRSC Signature stands for "morse code" signature.
Some specifications and with different sizes TFT displays as well.
MRSC Signature Features
USB keyboard (keyboard not included / wireless keyboard) very good is the Logitech wireless K360
5 - 99 WPM CW transmit
5 - 40 WPM CW receive
Adjustable sidetone frequency
Iambic keyer w/autospace
Farnsworth spacing
Adjustable weighting
Keying Compensation
First dit/dah compensation
Optically Isolated HV Outputs
Adjustable PTT delay
Page memory for messages sending and receiving.
12 memory slots for RA8875 displays and 8 memory slots for the tiny 3.5 " display
Messages can be chained, called, or repeated
Programmable beacon delay
Popular K1EL CW command language and chipset
HSCW and QRSS Tx support
Serial number generator
Keyboard key paddle
European character and keyboard support
RFI filtering on interconnect leads
7 text lines, 32 characters on a line by 3.5" TFT 480 * 320 ---> or 4.3" or 5" or 7" 800*480 7 text lines, 43 characters on a line
Rotary Encoder speed control
Adjustable screensaver
Dimensions: 105 x 100 x 32 mm
Commands:
Tune Ctrl + t
Set TX wpm at received RX speed Ctrl + m
Clear screen and wipe buffer Ctrl+ c
Go to setup menu with ESC key and than push C or use the rotary encoder
Other commands..... Insert type ahead, Delete stop transmission, PageUp and PageDown 500 lines each
For scrolling RX data, Shift PageUp and Shift PageDown for scrolling TX data. Home go back to incoming text and End goes to end of the RX buffer.
500 lines buffer for RX and 500 lines buffer for TX.
Use on the keyboard F1 to F8 (small screen), F1 to F12 (big screen) for the preset messages or use Touchscreen.
Edit messages with: Shift + F1 use arrow keys for editing text and use backspace to delete a character, text message can be 180 characters long.
To delete the complete message use Ctrl + c this clears the 500 lines buffer as well
We using also a touchscreen you can give the eight buttons a name too max 6 chars. use here the up arrow key to change the button name.
To open the preset buttons press middle of the screen, with the RA8875 display push right upper corner of the screen
When you are totally lost you can give Ctrl + Alt + Del you reset everything to factory default also the preset messages! Take care to use this.
The paddle sends text to the transmit window, nice for training purposes.
It starts with a decent anodized Alu cabinet the PCB fits exactly into the sleeves.
Needs some CNC work to fit the display nicely, the display will be glued.
The PCB into the cabinet and a hole for the encoder too. Text engraved at 0.12 mm.
Glue the display as shown and let it dry for some hours.
PCB, speaker, keyer and PSoc can be delivered as kit or as complete functional CWModem including case.
CNC made, text engraved 0.13 mm depth
Side panel, USB keyboard, AF, PDL and keyout connector PLEASE NOTE a wireless keyboard can be used as well!
Plug in your keyboard (wireless keyboard) , audio and paddle and there you go.......
MRSC.mp4The 7" RA8875 display compared to the tiny 3.5" Adafruit display
MOV_1688.mp47" RA8875 with FT5206, also a 5" RA8875 with a GSL1680 touchscreen controller can be used
MOV_1706.mp45" RA8875 display and menus
MRSC signature with 5" RA8875 touchscreen display, display pocket made with CNC
5" RA8875 tft with capacitive touchscreen
Engraved at 0.18mm and painted with black paint
12 preset messages there is space for more extra features.
Hi, is your MRSC Signature CW Modem up and running?
I got to try mine for the first time yesterday. I did receive the PCB in
the beginning this the week, Monday. Most of the components I had
already received from Mouser Electronics, even the TFT display Adafruit
2050 I bought from there. Then it was time to start....
I used a cheap analog soldering station, 49w with a 0.5mm tip plus
0.56mm solder wire and flux RF 800. And of course, a magnifying glass
with lighting. I started with the small T1, Q1 and Q2. And then on to U2
and U3. After that I went over to the small components. I soldered all
of the same kind, ie. first all of .001uF then .01uF etc. All from the
same tape until everyone was mounted so as I wouldn’t mix the components
together. Between each series of components, when the tape was empty, I
washed away the flux from the circuit board with a Q-tip and plenty of
isopropanol. Just to avoid it getting too messy. Excited by the
assembly, I worked as long as my back and eyes allowed. It took me two
days to complete, and probably breathed in lots of isopropanol vapor at
the time.
Then I discovered that the socket connector I was going to use for J5
didn’t fit in the holes, my pins was flat, not round or square. I did
order some new ones just to discover that the new ones also was flat,
but not as wide as the other, so I did file down the pins until they fit
in the holes.
Finally time to test.
I programed the Teensy with firmware V2 and assembled Teensy, PCB,
display and booted up. The screen lighted up, blinked a little while
booting and then dimmed a little and……. nothing.
Hmm, tried the other firmware: V3 – same thing again. By now I started
to get a little scared. What or where did it go wrong?
I sent a mail to Johan and explained the problem and symptoms and got
the answer: ” You make the solder on the back on the display ? Close IM2!”
Of course I hadn’t done that. Heated up the solder iron again and
bridged the ”Close IM2 for SPI” pads. Booting up and the text and
graphics came up. Thanks Johan for saving me from a sleepless night!
I pushed the center of the screen and the 8 message buttons came up so
the touch screen worked fine.
Second I'd plug in my wireless Rii mini i8, and to my surprise it
worked. Did not expect that. After that I programmed message 1 and 2
just to try. They worked just fine in different speeds. Finally I
cleared all with ctrl - alt - del. I also discovered that the settings
menu could be managed from the keyboard but the menu have to be
activated by the push-button on the encoder.
During the past week I have also been working on an enclosure to this
but it’s not machined it yet so I have just tried the MRSC Signature
rigged on my table so far. I'm planing to have a enclosure ready for it
next week.
That's my experience of this so far, how about yours?
73 de
Jan / SA3BKP
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