Περιγραφή

Η εταιρεία μας κατασκευάζει στην Ελλάδα ψηφιακά Radio UHF modem συμβατά με τους περισσοτέρους κατασκευαστές GNSS .

Το σύστημα είναι περιβάλλετε από ειδικό κράμα  αλουμίνιου για την μέγιστη δυνατή αντοχή στις εργοταξιακές συνθήκες.

Περιγραφή

Digital Modem 1

The DM-1 is a 0.5-2.0 Watt UHF transceiver designed as an exteternal Module with RS-232 comunication with an external device. Can Transmit either a one- or two-way radio communication link that is configurable for operation between 403 and 473 MHz. This sophisticated radio modem is based on Pacific Crest’s latest generation XDL technology while remaining backward compatible with existing Pacific Crest, Trimble and other products. Integrating the latest modem technology from the leader in radio frequency data communications instantly puts your products in touch with the world’s largest installed base of GNSS precise positioning systems.

 


 

 

  • Power Requirements

During RX 0.45 Watt

During TX 2.9W @ 0.5W RF Output 5.4W @ 2W RF Output

  • Mores

Modulation/Link Rate 4-Level FSK: 9600, 19,200 bps GMSK: 4800, 8000, 9600, 16,000, 19,200 bps

Link Protocols Transparent EOT/EOC/FST, Packet-switched, TRIMMARK™, TRIMTALK™, SATEL® (Compatible South , Stonex type 1)

Forward Error Correction

(FEC) and Detection

Yes
  • Radio

Frequency Band 403-473 MHz

Frequency Control Synthesized 6.25 kHz tuning resolution

Frequency stability +/- 1 PPM 12.5 kHz and 25 kHz, software derived

RF Transmitter Output 0.5 or 2.0 Watt (Programmable)

Sensitivity -110 dBm BER 10-5


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