• Pays
• Etats-Unis

• Fabricant / Marque
• Midnight Design Solutions; Loudon, TN

• Année
• 2008

• Catégorie
• Appareil amateur (divers et sans touches)

• Radiomuseum.org ID
• 341721

Cliquez sur la vignette du schéma pour le demander en tant que document gratuit.

• No. de transistors
• 3

• Semi-conducteurs
• 2N7000 2N7000 2N7000

• Principe général
• DSP, traitement numérique du signal

• Gammes d'ondes
• - sans

• Tension / type courant
• Batteries / Alim. BT séparée avec fiche / 2 x 9 or 9 to 18 Volt

• Haut-parleur
• - - Pas de sortie basse fréquence

• Matière
• Boitier métallique

• De Radiomuseum.org
• Modèle: Digital Modem NUE-PSK - Midnight Design Solutions;

• Forme
• Portable, appareil de poche. Taille < 20cm

• Dimensions (LHP)
• 6.75 x 1 x 4 inch / 171 x 25 x 102 mm

• Remarques

• The NUE-PSK is a small 7" x 4" x 1" standalone, battery-operated digital modem using a graphic display for transmit and receive text data, as well as for showing band spectrum and tuning. Just plug in a standard PS2 keyboard and connect to an SSB-capable transceiver like the FT-817 or the PSK-xx transceivers from Small Wonder Labs, and you'll have an effective digital mode station that goes absolutely anywhere.

   

      The NUE-PSK modem is an "open" design, with published hardware details and software source code.  What this means is that many others can contribute to the modem's capabilities and modes of operation.  Already we have a "USB add-on option" that maintains the current time and date, and lets you record the QSO (with a timestamp) to a USB stick for archival or EmComm use. 

   

      Further, the modem has the ability to be "field upgraded" by using a serial port (or USB thumb drive) to load new versions of the modem software.  The NUE-PSK Modem supports BPSK (PSK-31), QPSK, RTTY and CW. 

   

  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)

  Powered by two internal 9V batteries (not included) or an externally-applied supply via 2.1mm coaxial jack

  Power requirements: 9-18V DC.  Current at 12V is 60 ma without backlight, 80mA with backlight.  The current decreases as input voltage is increased.

  Field reprogrammable 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

  Optional USB Card provides ability to record transmit and receive text from QSOs for archival and printing.  Also serves as serial adapter port for connection to PC for upgrading modem software, and for uploading/editing/downloading file with modem settings and macro text strings.

• Poids net
• 0.12 lb (0 lb 1.9 oz) / 0.054 kg

• Prix de mise sur le marché
• 199.00 US

• Littérature
• QST (March, 2008)

• Schémathèque (1)
• -- Schematic

• Schémathèque (2)
• NUE-PSK Digital Modem Operating Manual, Midnight Design Solutions, 2008-2012

• Auteur
• Modèle crée par Greg Hubbard. Voir les propositions de modification pour les contributeurs supplémentaires.

• D'autres Modèles

• Vous pourrez trouver sous ce lien 1 modèles d'appareils, 1 avec des images et 1 avec des schémas.
  Tous les appareils de Midnight Design Solutions; Loudon, TN