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DX WinLink Sessions using QRP & Compromise Antennas

Discussion in 'Amateur Radio News' started by OH8STN, Aug 29, 2017.

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  1. OH8STN

    OH8STN Ham Member QRZ Page

    Hello Operators.
    Last weekend I participated in an emergency communications exercise called ILMI 2017. The exercise was designed to replicate a terror attack on grid power and communications here in OH.

    After the event, I began to wonder about portable operations for emergency communications. Could QRP portable operators, using less than ideal antennas effectively send, receive or relay messages through RMS or BBSLINK stations on HF!?

    I felt the answer to this question was especially important in areas where the RMS or BBSLINK station density (Outside of North America), is quite low, or within a disaster area, where the supporting stations we are accustomed to using, are themselves overloaded or victums of the disaster.
    I'll follow up this video with the video of the actual emergency exercise. For now please check out the results of my test.

    73
    Julian oh8stn

     
    W4RAV and K9EZ like this.
  2. KM4DYX

    KM4DYX XML Subscriber QRZ Page

    Hey Julian you are stealing my schtick! I've been promoting the benefits of Winlink/QRP for some time. Enjoy!

    73,
    Al
     
    OH8STN likes this.
  3. W5YAG

    W5YAG XML Subscriber QRZ Page

    Do you know of somewhere where I can read up on BBSLINK? When I searched on Google all I was finding are telnet BBS systems.
     
    OH8STN likes this.
  4. OH8STN

    OH8STN Ham Member QRZ Page

    :)
     
  5. OH8STN

    OH8STN Ham Member QRZ Page

    Try searching yahoogroups or hflink.net for MARS-ALE.
     
  6. OH8STN

    OH8STN Ham Member QRZ Page

    i found the link.
    http://hflink.net/bbslink/
     
  7. W5YAG

    W5YAG XML Subscriber QRZ Page

    Cool. Thanks for the info.
     
  8. WA2LXB

    WA2LXB XML Subscriber QRZ Page

  9. KH6VP

    KH6VP Ham Member QRZ Page

    I used Winlink when I was in Nairobi, in March 2017. I used a dipole antenna cut for 20m, an Icom 7000, the SCS PTIIusb modem and a laptop. although my messages did get through, the absence of base stations in Africa is a problem. I couldn't logon to any European Winlink stations, and only managed to connect to a station in South Africa and once to a station in Namibia. If I had QRP, the signals would have gone nowhere. The biggest problem is noise from the many third world destined chargers and crappy switching power supplies. I was in the center of Nairobi, in a house with a big garden. Maybe in the bush, it would have been different, but then I would need power. This is my experience in a realistic setting. When back, I will try again to do the same but this time, in the bush.
     
    KN4EMY likes this.
  10. KM4DYX

    KM4DYX XML Subscriber QRZ Page

    I've done a lot of QRP Winlink in the States but it sounds like you had some rough conditions to contend with. One technique that helped my Winlink DX successes (Mexico and Canada) was constructing a wire 2-element Yagi Uda inverted V. It made the difference.

    While I'm a big proponent of QRP for various reasons, sometimes QRO is the way to go to get comms up. (Can't believe I just wrote that...gonna get kicked off the "QRP" forums now.)

    73,
    Al
     
    KH6VP likes this.

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