American QRP Club NUE-PSK Manuale dell'operatore - Pagina 4

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3) Specifications

Standalone, half-duplex modulator/demodulator for amateur radio digital mode

communications

Handheld unit ... no PC required

Menus select operating modes, Squelch Thresh, PGA Gain, CW ID

128 x 64 pixel graphic LCD displays audio signal spectrum 500 Hz to 2.5 kHz (with

backlight)

Tx and Rx buffers and menu system displayed in lower half of LCD using four 20-

character lines of text

Tune controls modem position along audio spectrum

Modes currently supported: BPSK31, QPSK, QPSK reversed

External keyboard jack: 6-pin mini-DIN, PS2-compatible

Standard PS2-style or dual-mode USB/PS2 keyboard (user-supplied) provides text

input for Tx entry, command/mode selection and modem frequency adjustment

Connection to SSB transceiver: 8-pin mini-DIN (audio in, audio out, PTT, power)

via 2.1mm coaxial jack

Power requirements: 9-18V DC. Current at 12V is 60 ma without backlight, 80 mA

with backlight. The current decreases as input voltage is increased.

Field reprogrammability of internal microcontroller to allow software updating in the

field by the owner

Aluminum enclosure provides for rugged portable use while shielding transceiver

from digital EMI

Enclosure dimensions: 7" x 4" x 1"

Single 3.75" x 5.25" pc board contains all components and connectors

Lightweight: < 1 lb with batteries.

Control for precise audio level control to transceiver

Cable assembly provided (plug and shielded cable) for connection to the SSB

transceiver

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