This video shows my QSO from WA to SD on 4 watts. I am using WSJT-X JT9 Sub-mode 1 with JT-Alert-X. My radio is a Flex1500 with PowerSDR v2.6. I am monitorin…
Video Rating: 5 / 5

After the success of getting HRD to work with the Yaesu FT-736R as shown in another video, I thought I would try something totally ridiculous and see if I co…
Video Rating: 5 / 5

16 replies
  1. Rodrigo Pellizzari
    Rodrigo Pellizzari says:

    Hi TinkTron,

    I just got one of these radios after watching your video, but where can I find the schematics of the interface?

    73

    Rod

    Reply
  2. w9gb
    w9gb says:

    You do understand that the Heathkit HW-8 is an ANALOG QRP transceiver ??
    There is NO uProcessor to control or CAT interface (since there is no uProcessor to control).
    The HW-8 came out in mid-1970s, when the Intel 4004, 8008 and Motorola 6502 were brand new processors.

    w9gb

    Reply
  3. w9gb
    w9gb says:

    Actually in 1980, the IBM PC was still in design stage ! It was not introduced to marketplace until 1982. In 1980, the 8-bit processors (6502, Z-80) were common and the operating system was: Digital Research CP/M.

    Sadly, I lived the history — and people are already forgetting 🙁

    Reply
  4. TinkTron
    TinkTron says:

    Yes I do realize that, that is why I mentioned that I would need a budget. I would be emulating a radio like I do now, and using a DDS to create the signals

    Reply
  5. TinkTron
    TinkTron says:

    The IBM 5150 came out in August of 1981. I actually had one that I bought used and used it until 1994 for some DOS stuff I was doing. It ended life with a high velocity .308 bullet from my rifle. It had a 10MB hard drive and two floppies, a parallel port and a serial port. I also designed a card to interface to the ISA port in that thing and put out a 1 Mbps serial stream on a 10 wire bus I cam up with using RS-422. That thing used over 30 chips to do what can now be done with one USB IC

    Reply
  6. TinkTron
    TinkTron says:

    The board artwork is available. It’s all on the website. home.comcast.net/~tinkyr/radio­/projects/720_to%20HRD/720A_to­_HRD.htm

    Reply

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