Odyssey SDR Transceiver 2017.05.09

Odyssey SDR Transceiver
Odyssey TRX - open-source SDR DDC/DUC Transceiver

https://www.kickstarter.com/projects/245090331/odyssey-trx-sdr-ddc-duc-tranceiver
http://ody-sdr.com/


Hi David,
Thank you very much for your kindness.

基板を入手しました。 現在、Odyssey2のプロジェクトが進行中で、近々にKickstarterから募集がかかるようです。


 

BGAを半田付けしてみた。

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 receiving channels
- 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: 2.5 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 controls 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 and frequency sweep measurement; complex impedance and SWR measurements are done with external RF bridge



FPGA BGA

 

レーザーで刻印しました。

 

FPGAのBGAを半田付けしてみました。 フラックスを塗り、ホットプレート240℃で3分間、そっと押してみたら元に戻ったので半田付け完了です。
思っていたよりも簡単でしたが、果たしてちゃんと半田付けできているかどうか??