FWIW - 1566 kHz from Korea carries a few hours of VOA to P5.

73
Ken K4ZW

On Monday, October 12, 2026, ve6wz--- via Topband <[email protected]>
wrote:

> Jim's comment regarding "off-axis" path to EU from my location in VE6 is
> very true.
> My Beverage arrays pointed toward EU from here have much of continental NA
> off the sides.
> Since EU BCB is on the 9kHz offset "between" the domestic NA 10 kHz splits
> really helps, but adjacent splatter can be a real killer.
> The same is even more true for Asia and OC where from here, NA is mostly
> off the back of my RX which really helps.
>
> However, as a propagation indicator, we don't need to parse out audio, as
> much as simply see the 9kHz carrier amplitude between the domestics.
> The powerhouse EU guys are Moldova on 1413 kHz, Lithuania on 1386, and UK
> on 1089 kHz. (amongst others)
>
> For Asia Korea HLAZ on 1566 is almost always loud, and a handful of other
> Japanese.
> The "big one" from VK is Brisbane area ABC 1548 kHz
>
> Indeed from California, the path to EU is mainly in the RX boresight of
> mainland USA, so those domestic offsets are likely to be very strong.
>
> Steve wz
> ________________________________
> From: Topband <[email protected]> on behalf of
> Jim Brown via Topband <[email protected]>
> Sent: Monday, October 12, 2026 12:10 PM
> To: [email protected] <[email protected]>
> Subject: Re: Topband: Using AM broadcast stations as propagation "beacons"?
>
> The usefulness of AM broadcast stations depends strongly on where we
> live and what we're trying to study.
>
> EU broadcasters use 9 kHz spacing, so looking for carriers from known
> stations is probably the key to studying the path from the west coast to
> EU. VE6WZ, other Canadian hams, and east coast hams aren't affected
> nearly as much by this issue, because their path to EU is off-axis to
> much of the US and Canada.
>
> I routinely use daytime AM broadcast signals to check the condition of
> my Beverages and VE3DO loops, which are quite vulnerable to damage from
> falling branches in my dense redwood forest, which also includes a lot
> of smaller trees, like madrone and tan oak. I've developed a spreadsheet
> of AM stations within 300 miles of me to facilitate this. My full-wave
> Beverages are still providing significant directivity low in the US AM
> band.
>
> https://www.fcc.gov/media/radio/am-query makes it easy to develop such a
> spreadsheet if we know how to read it. DA means directional antenna, ND
> means non-directional antenna, DA-D and DA-N mean directional daytime or
> night, and the listings include power levels for daytime and night and
> even details of all antenna systems. Stations are licensed for these
> parameters to cover their license area while protecting distant stations
> from interference, both on their own frequency and on first and second
> adjacent channels.
>
> 73, Jim K9YC
>
> On 10/12/2026 11:10 AM, Richard (Rick) Karlquist wrote:
> > The trouble with this concept is that there are hundreds of stations on
> > any given frequency in locations all over north america, so in general
> > even if you had propagation from the east coast to W6, the east coast
> > stations would be lost in the massive QRM of all the other stations
> > on the west coast.  I remember I once heard WCBS on a beverage antenna
> > going coast to coast, but that probably had a lot more to do with other
> > stations on 860 kHz being in fades at the time than WCBS suddenly
> > getting very strong due to propagation.
>
>
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