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The NUE-PSK Digital Modem is a standalone, battery-operated digital modem using
Microchip dsPIC technology. Weighing about 12 ounces and requiring only 60ma at 12V
DC, the modem is easily taken to the field. For easy visibility in high or low ambient
light, the NUE-PSK modem's backlit graphic LCD displays transmit and receive text
data, as well as band spectrum and tuning indicator. When coupled with a standard PS2
or USB keyboard and an SSB-capable transceiver, you can have an effective portable
PSK31 station.
NUE-PSK Digital Modem Operator's Manual, ver 1.30c
1
Copyright 2008, American QRP Club
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Table of Contents
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Summary of Contents for American QRP Club NUE-PSK
- Page 1 DC, the modem is easily taken to the field. For easy visibility in high or low ambient light, the NUE-PSK modem’s backlit graphic LCD displays transmit and receive text data, as well as band spectrum and tuning indicator. When coupled with a standard PS2 or USB keyboard and an SSB-capable transceiver, you can have an effective portable PSK31 station.
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Page 2: Table Of Contents
Ctrl-S char, backspace and CWID fixes, and improved displaying/saving/loading of configurable modem settings. Version 1.30c – Current software release, providing initial support for the optional USB add-on hardware and improved text entry keyboard sequences and commands. NUE-PSK Digital Modem Operator’s Manual, ver 1.30c Copyright 2008, American QRP Club... -
Page 3: Introduction
But there’s hope! The NUE-PSK Digital Modem offers a unique way for hams to get on the air using the digital modes. No PC is required, thus enabling one to communicate using PSK31. This self-contained, hand-held modem connects to your SSB transceiver and allows you send and receive text data using the PSK31 digital mode. -
Page 4: Specifications
New in version 1.30c: Optional USB plug-in card provides ability to Record QSO text and save to USB flash memory device > Also new in version 1.30c: New text entry sequence for macros. NUE-PSK Digital Modem Operator’s Manual, ver 1.30c Copyright 2008, American QRP Club... -
Page 5: Power
A USB keyboard may be used if it has built-in PS2 support. Most USB keyboards that are sold with a USB to PS2 adapter will work, using the adapter. NUE-PSK Digital Modem Operator’s Manual, ver 1.30c Copyright 2008, American QRP Club... -
Page 6: Operation
“TUNE” at the top left of the display. The modem is now generating a continuous tone, which is fed to the audio input of the rig. The PTT signal from the NUE-PSK Digital Modem Operator’s Manual, ver 1.30c Copyright 2008, American QRP Club... -
Page 7: Macros
This way, whenever you enter a new call sign using Ctrl+T, you do not need to re-record the macro to use the new call sign. NUE-PSK Digital Modem Operator’s Manual, ver 1.30c Copyright 2008, American QRP Club... -
Page 8: Configuration Menu
See a useful list of available menus and hot key assignments on the next page, along with a sample usage scenario for saving data to the USB device. NUE-PSK Digital Modem Operator’s Manual, ver 1.30c Copyright 2008, American QRP Club... -
Page 9: Hot Keys
Ctrl-I: Insert text into recording file. Ctrl-Z to conclude entry. The USB file must already be open (Ctrl-U) for this to work. The recording file remains open for additional Rx or Tx text, until Ctrl-U pressed again to close the recording file. NUE-PSK Digital Modem Operator’s Manual, ver 1.30c Copyright 2008, American QRP Club... -
Page 10: Updating Modem Software
What a great way to keep your project completely up to date with the latest features! We have incorporated this field updating capability into the NUE-PSK Digital Modem. You just need to connect your PC serial port to the modem using a simple adapter, and send it the new software obtained from the NUE-PSK website whenever new capabilities are made available. - Page 11 So, now that you are ready, next perform the following steps to connect the PC to your modem using your serial port ... 4) Connect the serial interface between the NUE-PSK modem programming port and the PC -- You will typically need to connect your serial adapter to a serial port cable that is plugged into your computer, and then connect the adapter to the 4-position "Field...
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Page 12: Tips & Techniques, And "Things To Watch Out For
PSK31 mode. Please be sure to read the corresponding section on the NUE-PSK website containing lots of tips on this topic. b) Inserting Plugs to the Modem – You will want to be sure that you fuly insert the Radio and Keyboard plugs into the connectors on the modem. -
Page 13: Technical Support
NUE-PSK. You can view all the messages posted there, and if you join (for free!), you will be able to post questions and comments yourself, as well as access the files in the group. -
Page 14: Appendix A: The Radio Cable
Appendix A: The Radio Cable This diagram represents what is shipped with your NUE-PSK modem. Since the modem can interface with literally hundreds of different SSB transceivers, it will be necessary for you to connect the “unfinished end” of the Radio cable to properly interface with your specific radio. -
Page 15: Appendix B: Schematic
Appendix B: Schematic NUE-PSK Digital Modem Operator’s Manual, ver 1.30c Copyright 2008, American QRP Club... -
Page 16: Appendix C: Release Notes
This capability is provided for convenient identification of the resultant recorded data on the USB device. (For example, placing a date/time, operator name, or operating location is a common use.) NUE-PSK Digital Modem Operator’s Manual, ver 1.30c Copyright 2008, American QRP Club...
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