Keyboard Hot Keys
Play Macros: Function Keys
F1 to F7
Record Macros:
Ctrl-Fn
Initiates recording. Enter keystrokes. When finished, Press F9
Erase Macros:
Alt-Fn
to delete Macro associated with Fn
F8
toggles TUNE mode. May be accessed only in RX or TX. (Not in Setup, or Macro Recording)
F11
displays the first few bytes stored in EEPROM
F12
toggles between RX and TX (again, not in Setup, or Macro Recording)
F10
displays the main Setup Screen. (Accessible only in RX mode). A numeric selection from the Main Menu, selects a submenu,
which is then displayed on the LCD. Another numeric selection activates your selected parameter
Ctrl-K
clears the keyboard buffer (in case errors made) before entering callsigns
Ctrl-M
saves keyboard entries into a fixed location in EEPROM (for recording your callsign, for use in Macros)
Ctrl-T
saves keyboard entries into a RAM location (for recording the other station’s callsign—also for use in Macros)
Alt-M
enters a control character into a Macro, that when played back, will insert your callsign
Alt-T
does the same as Alt-M, but it forces the entry of the other station’s recorded callsign into the macro playback
Ctrl-F
saves the current frequency into EEPROM so that it can be restored at the next power-up
Alt-F
retrieves the saved frequency and makes it the current frequency
Ctrl-Tab
displays the current frequency (audio) on the character LCD
Ctrl-O
toggles display backlight on and off
Parameters Selectable by Hot keys
Ctrl-A
Enable AFC
Alt-A
Disable AFC
PgUp
Increase PGA gain
PgDn
Decrease PGA gain
Ctrl-L
clears the Character LCD
Ctrl-B
clears the internal buffers
Ctrl-Q
inserts a TX-OFF control character
in the TX buffer, or Macro
Page 2
Specifications
>
Standalone, half-duplex modem for digital modes
>
Handheld unit ... no PC required
>
Menu selects modes, squelch, input audio gain, CW ID, and more
>
128x64 pixel graphic LCD displays audio signal spectrum 500 Hz-to-2.5 kHz
(with backlight) and display of TX/Rx typing buffers
> Tune
controls modem position along audio spectrum
>
Modes currently supported: BPSK31, QPSK, QPSK/R
>
External keyboard jack: 6-pin mini-DIN, PS2-compatible, or PS2/USB combo kbd
>
Keyboard provides text input for Tx entry, command/mode selection and
modem frequency adjustment
>
Connection to SSB transceiver: 8-wire cable (audio in, audio out, PTT)
>
Powered internally by two 9V batteries or externally through 2.1mm coaxial jack
>
Power requirements: 10-18V DC at 45 ma (typical at 16V supply voltage)
>
Field reprogrammability of internal microcontroller to allow for software updating
>
GPL open source software - source freely available
>
Rugged aluminum enclosure: 6.75" x 4" x 1"
>
Single 3.75” x 5.0” pc board
>
Lightweight: < 1 pound
> Tx Audio
control adjusts for precise audio level to transceiver
Config Menu
Mode: BPSK, QPSK, QPSK/R
Squelch Threshhold: 25, 50
CWID: On, Off
PGA Gain: x1, x5, x16, x32
Tune Increment: Single, Double
Battery Voltage:
TX Audio Level:
Exit
For further information, including a full Operating Manual, visit
www.amqrp.org/kits/nue-psk
.
An active discussion group is maintained on Yahoo Groups in the NUE-PSK section. Visit
http://groups.yahoo.com
to get started.
In case of questions or technical problems, please contact
Radio Cable
Connect right end according to recommended data connection for your SSB rig
Radio Cable:
Use supplied cable for connection to your SSB transceiver.
Audio OUT:
Provides modem tones to the transmitter. Tx Audio control adjusts
transmit audio to an acceptable level for your transceiver. Be careful not to over
modulate. See manual for use of HI-DRIVE shunt to further control Tx drive level.
See
http://ne.mara.net/psk31.pdf
or other online information at
www.arrl.org
for
proper setup of transceiver for PSK31 operation. (Search keyword: “PSK31”)
Audio IN
: Provides receiver audio to the modem. Ideal signal levels in 10-100 mV
range.
PTT
: Provides low level when modem in Tx mode. (The internal FET driver can sink
up to 50ma.)
+V:
Can provide power to the modem when modem switch is OFF. It may also
supply power from the modem with modem switch is on.
Two types of cables are provided.
TYPE A
is determined by
continuity from connector pin 8
and the blue wire.
TYPE B
is determined by
continuity from connector pin 8
and the black wire.
Be sure to use the correct color
coding for your cable
