Welcome to the specialized Short Wave (HF/HF) section, which forms the very core of the amateur radio hobby on the CQ.sk portal. This discussion forum is intended for all communication enthusiasts on frequencies up to 30 MHz, covering all classic amateur radio bands from 160m to 10m. Whether you are an experienced DXer who tirelessly hunts for rare expeditions, or a beginner who is just discovering the magic of ionospheric wave propagation, this place is made for your community.

Share your practical experience with the construction of effective HF antennas, tuning transceivers or comparing the technical parameters of modern SDR devices. We discuss the specifics of operation in various modes - from traditional telegraphy (CW) and voice transmission (SSB) to modern digital modes such as FT8 or amateur radio teletype. Short waves offer a fascinating opportunity to establish connections around the world with minimal power, which requires deep knowledge of propagation conditions and technical proficiency. Join the debate, ask for expert advice or inspire others with your successes in international competitions. Your contributions help build a quality information archive for the entire Slovak amateur radio community.

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  • What kind of wire do you use for HF antennas? 1 2 3

    Founded by: Anonymous Last post: Fero – although I'm not, I'll write something here — 1 year, 6 months ago

  • 10 votes
    34 posts
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  • Predám FT847 + analogový zdroj 30A + KVPA ACOM 1100 + koax.kabely

    Founded by: Eva Francová Last post: Eva Francová — 1 year, 6 months ago

  • 1 votes
    1 posts
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  • bye ft817nd

    Founded by: om2aii Last post: om2aii — 2 years, 1 month ago

  • 1 votes
    1 posts
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  • Comparison of antennas with WSPR

    Founded by: om0aao Last post: om0aao — 2 years, 6 months ago

  • 1 votes
    1 posts
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  • LogHX log

    Founded by: OM3BY Last post: OM3BY — pred 2 rokmi, 8 mesiacmi

  • 3 votes
    4 contributions
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  • QRM, probably from Powerline adapters in the house?

    Founded by: om3jh Last post: om3jh — 3 years, 2 months ago

  • 4 votes
    6 posts
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  • WSJT-X FT8 Settings

    Founded by: OK1CIG Last post: OK1CIG — 3 years, 7 months ago

  • 2 votes
    4 contributions
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  • OK/OM Contesty v N1MM

    Founded by: OM3BY Last post: OM3BY — pred 4 rokmi

  • 1 votes
    1 posts
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  • N1MM for VRK Plant

    Founded by: om0aao Last post: om0aao — pred 5 rokmi, 2 mesiacmi

  • 1 votes
    2 contributions
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  • Hampop

    Founded by: Anonymous Last post: Anonymous — 6 years, 9 months ago

  • 1 votes
    1 posts
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  • contest denník TR4W a Trx Kenwood.

    Founded by: Tent Last post: Tent — 7 years ago, 1 mesiacom

  • 5 votes
    9 posts
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  • What is the diary for the kv race?

    Founded by: Anonymous Last post: OM8AQ — 7 years, 7 months ago

  • 2 votes
    4 contributions
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  • Affordable power supply 1 2 3

    Founded by: Anonymous Last post: Anonymous — 7 years, 8 months ago

  • 6 votes
    34 posts
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  • Modifications of the Chinese kit Forty er

    Founded by: Anonymous Last post: Anonymous — 7 years, 8 months ago

  • 4 votes
    11 posts
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  • How I built ANT...a layman's perspective.

    Founded by: om1ci Last post: Anonymný — 7 years ago, 9 mesiacmi

  • 2 votes
    2 contributions