I know where they went

Discussion in 'The Low Bands - 630/2200 Meters - VLF' started by KL7AJ, Oct 24, 2019.

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  1. KL7AJ

    KL7AJ Ham Member QRZ Page

    I see that now that we have some LF banks, BC453s have all been snatched up. Rats...wish I had bought one when I could. Anyhoo....working on some original DC receiver designs for those bands.

    Interesting to know that MOST modern HF transceivers...even those with general coverage, suck mightily on LF/VLF.
     
    KK4CUL likes this.
  2. KK4CUL

    KK4CUL Ham Member QRZ Page

    The manufacturers likely have to implement some tight high-pass filtering or just need to minimize cost/complexity to make room for all the other features. I will say that with my 40m EFHW and a 50Hz CW filter, I can clearly receive about 25 NBD stations in the ~220-~300KHz range, which is pretty surprising how electrically noisy my neighborhood can be!
     
  3. KL7AJ

    KL7AJ Ham Member QRZ Page

    We only have half a handful of NDBs in Interior Alaska, but I'm hoping to cast a wider net soon.
     
  4. WQ2H

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

    NDB's in the 200-400 kHz range should be fairly easy with even a modest conventional HF receiver.

    I've used an FT-991, a random long-wire, and with Argo have snagged probably over a hundred so far this year.

    An extra LNA, such as the SV1AFN 10 kH - 60 MHz, will never hurt.

    Conditions are crazy variable, blasting in one minute - totally gone the next. Good luck !

    73
    Jim, WQ2H / WK2XAH
     

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