A new FT8 & JS8Call QRP kit:D4D

Discussion in 'QRP Corner' started by BG7IKK, Jun 26, 2019.

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  1. BG7IKK

    BG7IKK Ham Member QRZ Page

    D4D is a doublesided band transceiver kit for FT8 & JS8Call

    Summary: Crystal controlled DSB transceiver for 20m(14.074MHz for FT8), 30m (10.130MHz for JS8Call), 40m(7.074MHz for FT8) or 80m (3.573MHz for FT8)
    Dimensions: 103mm(L) x 66mm(W) x 27mm(H)
    Weight: about 165 grams
    Power supply: 10-14V DC regulated power supply or battery pack,12V is recommended, center positive, reversed polarity protection supported
    Current consumption in RX: about 15mA (R20* not installed) or 23mA (R20* installed) at 12V
    Current consumption in TX: 200-350mA at 12V depending on audio input level
    RF output: 0.5~1.5W at 12V
    Antenna connector: BNC connector
    Audio in connector: 3.5mm mono, at least 600mV to activate
    VOX, connects to headphone connector at PC sound card, no
    dedicated PTT connector is required
    Audio out connector: 3.5mm mono, connects to microphone
    connector at PC sound card
    Amber LED: TX status
    Green LED: RX status
    Frequency accuracy: -400 Hz ~ + 200 Hz

    The longest distance QSO so far was made by me with an Italian station and the distance is over 9000km with my 20m D4D and the end fed half wave antenna.

    Links: https://groups.io/g/crkits/topics

    Attached Files:

  2. W7CJD

    W7CJD Ham Member QRZ Page

    Have you tried FLDIGI?

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