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Odyssey TRX is 16-bit ADC high performance DDC SDR 0.5-55 MHz tranceiver for radio amateurs with open source.
Odyssey TRX is 16-bit ADC high performance DDC SDR 0.5-55 MHz tranceiver for radio amateurs with open source.
Odyssey TRX is 16-bit ADC high performance DDC SDR 0.5-55 MHz tranceiver for radio amateurs with open source.
17 backers pledged €7,081 to help bring this project to life.

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Odyssey TRX SDR DDC/DUC Tranceiver

€7,081

17

Odyssey TRX - is  the result of lengthy research and numerous experiments and think I did a great device for radioamateurs. This is a fully finished project and ready for production. You can order  It right now and get after a few months.  Some radioamateurs already use this device right now and  find that it works very well.

Join my Yahoo! group to discuss the project or learn more on http://ody-sdr.com

So, Odyssey TRX - what is this ? This is a fully digital Ham-Frequency short-wave and low-band SDR tranceiver. His transmitter has only 10 mW power output, so device can use as receiver and as Vector Network Analisator. For using with more power you need to use an external amplifier.  I regard this as an advantage because the user  don't  have to overpay for functions that are not necessary. In the future, I'll present also an amplifier(15W), VHF transverter and autotuner ih the similar housing and the customer can choose a configuration that it requires. I call it "add block if you need" conception and device will fit this.

 What inside ?  Device uses modern high-quality components, is based on a 16 bit LTC2165 ADC and EP4CE22F17 Cyclone IV FPGA from Altera. Transmitter is using 14-bit DAC AD9144. Timing ensured by low-noise 122.880 MHz oscillator with phase-loop frequency stabilization.

Full understanding of the internal structure will give the block-scheme. Please note that device have the three options to connect to the PC: simple LAN, USB 3.0 via built-in converter and Wi-Fi+LAN via little router. All the options work identically and don't need specific firmware for the main part.

 The main characteristics of the device shown in this table:

- 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 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 3.3 volts logic level lines for control of external devices :
                 4 lines for BPF/LPF, PreAMP control, Antenna switch control,                    Automatic Tuner control and PTT control
        built-in sound codec for minimize delays,
        headphones and microphone can be connected directly
       automatic key processor with zero-delay self-monitoring,
       both straight and Iambic modes are supported
      VNA mode and frequency sweep measurement
      complex impedance and SWR measurements are done with external       RF bridge

 What software is work ? It is SDR device and for working need some SDR program. Originally, device was supported nativelly in QUISK, QUISK VNA and  Zeus Radio, but currently since firmware v1.3 was added OpenHpsdr protocol support and other programm became available. PowerSDR MRX, CuSDR, KissKonsole and much programm via ExtIO.dll for Hermes - HDSDR, SDR-Sharper, Studio1 and other.

 Zeus-Radio and QUISK can to open two window for work with two receivers independly, PowerSDR MRX and CuSDR are used two receivers as provided by the program.

Source code. This project was based on the N2ADR TRX (James Ahlstrom) source code with extentions and can be downloaded freely from GitHab.

Risks and challenges

This project is finished and ready for production immediately. I have an experience of production in the past and have established contacts with the component suppliers and manufacturing firms.

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  1. Select this reward

    Pledge €50 or more About $54

    to support the project, a donation for future developments

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  2. Select this reward

    Pledge €400 or more About $434

    to get a simple Odyssey's board with LAN interface, without housing.

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    1 backer
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  3. Select this reward

    Pledge €450 or more About $488

    to get a LAN version of Odyssey in the housing.

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    10 backers
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  4. Select this reward

    Pledge €500 or more About $542

    to get a USB version of Odyssey in the housing

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    2 backers
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  5. Select this reward

    Pledge €550 or more About $597

    to get a Wi-Fi + LAN version in the housing

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    2 backers
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Funding period

- (37 days)