LF propagation?

Discussion in 'The Low Bands - 630/2200 Meters - VLF' started by N4LGS, Sep 6, 2019.

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  1. N4LGS

    N4LGS Ham Member QRZ Page

    dose sun spot activity effect long wave propagation? If not what dose? I use a large loop anteanna with very good results for receiving . Also I keep receiving a signal @225kc in code, _... ..../ bh. Any ideas? Very curious.
  2. KA0HCP

    KA0HCP XML Subscriber QRZ Page

    No, sunspots do not affect LF propagation. Two big factors are:
    -Geomagnetic activity
    -Lightning noise levels
    K0UO likes this.
  3. N4LGS

    N4LGS Ham Member QRZ Page

    Tk,s will keep that in mind. Any notes on the CW sig. I heard? @225kc.
  4. K9STH

    K9STH Ham Member QRZ Page


    Actually, BH is on 224 kHz. It is the NDB (non directional beacon) for the Birmingham, Alabama, Shuttlesworth International Airport (BH for "Birmingham").

    Glen, K9STH
    WD4IGX, K0UO and SA6CKE like this.
  5. KA0HCP

    KA0HCP XML Subscriber QRZ Page

    Last edited: Sep 6, 2019
  6. N4LGS

    N4LGS Ham Member QRZ Page

    Thanks. That answers that guestion!
    I really injoy listening to LF . Started out using the sound card on an old laptop. Worked for the VLF but not the LF. Even drove copper rods in the ground for antenna.
    KA0HCP likes this.
  7. K6CLS

    K6CLS Ham Member QRZ Page

  8. WQ2H

    WQ2H QRZ Lifetime Member #214 Platinum Subscriber Life Member QRZ Page

    WD4IGX, K6CLS and KA0HCP like this.
  9. K8JD

    K8JD Ham Member QRZ Page

    Too bad the NDB system has been shutting down stations. I guess the US is more interested in just using GPS in aircraft lately. The Canadians seem to still rely on LF NDBs in the far north . I have about 5 pages of NDBs I have IDed over the years.
  10. N4LGS

    N4LGS Ham Member QRZ Page

    I think this is a grate and worthy subject for discussion and would like to keep it going. I think I might try to build a trx and do CW. That sound like fun. I have a small radio that receives the LF amateur band, and now have a ham-it-up receiver for my laptop . I've heard signals as low 12kc,s. if anyone has any info on long wave trx,s please post them. Old vacuum tubes would be grate! Can't help it , I'm old, vacuum tubes for ever! N4LGS

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