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ODYSSEY TRX has a few modifications such as simple LAN10/100 or LAN + Wi-Fi or USB 3.0 interface, but main characteristics of transceiver remain the same.

board_odyssey

This is a single board construction based on Cyclone IV FPGA which can fit in standard 1455J1201 case from Hammond.

board_box

The board uses 16-bit LTC2165 ADC which is much “colder” than any other similar devices, so there is no the problem of overheating.

This is block diagram of the device:

diagram

Technical specifications and key features of ODYSSEY TRX:

General characteristics:

  • board size is 123.5 x 75mm, appropriate for Hammond 1455J1201 housing.
  • supply voltage: 7-15 V, reverse polarity and overvoltage protection.
  • current consumption for 12 Volt power supply:

LAN & USB version, RX 250 mA, TX 340 mA

Wi-Fi version, RX 380 mA, TX 480 mA

  • current consumption for USB bus power supply (5 volts):

USB version, RX 590 mA, TX 720 mA

  • PC connections: LAN10 / 100, Wi-Fi or USB
  • connectors for headphones, microphone, KEY/PTT: Mini Jack 3.5mm
  • RF connectors: SMA-F
  • connector for external devices control: DB9-F

RX characteristics:

  • type of ADC: 16-bit LTC2165
  • sampling frequency: 122,880 MHz
  • two independed software receivers
  • receiving frequency range: 0.1-55 MHz
  • sensitivity, MDS (500): -127 dBm
  • blocking level: -8 dBm
  • Blocking Dynamic Range: 119dB
  • RM Dynamic Range (10 kHz): 114 dB
  • attenuator 0-30 dB
  • frequency stability using built-in reference generator: 5 ppm
  • supported sampling rates: 48 — 960 kHz
  • wide band scope: 0 – 66 MHz

TX characteristics:

  • frequency range: 1 — 55 MHz
  • output voltage on 50 ohms: 1 volt peak
  • output power: 10 mW
  • linearity, IMD3: 60 – 65 dB
  • maximum width of the transmitted signal: 48 kHz

Additional features:

  • input for high stability 10 MHz reference frequency, 3.3 – 5.0 volts logic level
  • 122.880 MHz stability frequency output
  • 8 control lines of control for external devices : 4 lines for BPF/LPF, PreAMP control, Antenna switch control, Automatic Tuner control and PTT control – all using logic level 3.3 volts
  • built-in sound codec to minimize delays; headphones and microphone can be connected directly to the main board
  • Automatic Key Processor with zero-delay self-monitoring. Both straight and Iambic modes are supported
  • VNA mode support and frequency sweep measurement, complex impedance and SWR measurements are done with external RF bridge