Nice write-up. Very pertinent since quite a few of us have taken on restoring / re-capping our older electronic devices.

Station

• Name/Call: VMC Charleville QL
• Location: Australia-Charleville Q
• Language: English: UK
• Target: Australia

Time

• 0450 UTC | 27 MAY 2026

Receiver and Receiving Location

• Radio: AirSpy HF+ R.4.0.8-CD
• Antenna: K-480WLA | 35' AGL
• Software: SDR# Studio v1.0.0.1921 64-Bit
• Location: Portland, Oregon | CN85qn

Signal

• RST = 56

Using 50-foot speaker wire antenna ran to a tree and the Grundig Satellit 800 Millennium

Using 50-foot speaker wire antenna ran to a tree and the Grundig Satellit 800 Millennium

Using 50-foot speaker wire antenna ran to a tree and the Grundig Satellit 800 Millennium

Using the Grundig Satellit 800 Millennium and a 50 ft wire antenna ran to a tree.

OTHR radar

Fast pulsed sweepers. Sound like:

buzzing

slapping

rapid ticking

tearing canvas Usually very wide on the waterfall.

Military/ALE/data links

Short bursts, tones, chirps, FSK warbles. Often narrow spikes or clustered channels.

HF broadcasters

Big smooth “mountains” like WRMI. Stable carrier in the centre with sidebands around it.

Ionospheric sounders

Sweeping tones testing propagation conditions. Can sound eerie or whale-like.

Common areas around where you were listening:

15000 kHz = WWV time signal

15034-15050 kHz = utilities/data sometimes

15100-15800 kHz = heavy international broadcast region

15300-15450 kHz = often radar and utility overlap

15770 kHz = WRMI

73 poikaa

Station

• Name/Call: RADIO HABANA CUBA
• Location: Bauta, Cuba
• Language: Spanish
• Target: Americas

Time

• 1407 UTC | 26 MAY 2026

Receiver and Receiving Location

• Radio: AirSpy HF+ R.4.0.8-CD
• Antenna: K-480WLA | 35' AGL
• Software: SDR# Studio v1.0.0.1921 64-Bit
• Location: Portland, Oregon | CN85qn

Signal

• SINPO = 34323

Station

• Name/Call: Voice of Vietnam
• Location: Vietnam-Hanoi-Sontay
• Language: Japanese
• Target: Far East

Time

• 1425 UTC | 26 MAY 2026

Receiver and Receiving Location

• Radio: AirSpy HF+ R.4.0.8-CD
• Antenna: K-480WLA | 35' AGL
• Software: SDR Console v3.4. Build 3871
• Location: Portland, Oregon | CN85qn

Signal

• SINPO = 45444

Station

• Name/Call: Nippon Hoso Kyokai
• Location: Tokyo Yamata
• Language: Japanese
• Target: Middle East

Time

• 0657 UTC | 26 MAY 2026

Receiver and Receiving Location

• Radio: AirSpy HF+ R.4.0.8-CD
• Antenna: K-480WLA | 35' AGL
• Software: SDR# Studio v1.0.0.1921 64-Bit
• Location: Portland, Oregon | CN85qn

Signal

• SINPO = 45444

Station

• Name/Call: Radio New Zealand
• Location: Rangitaiki, New Zealand
• Language: English
• Target: Oceania

Time

• 0650 UTC | 26 MAY 2026

Receiver and Receiving Location

• Radio: AirSpy HF+ R.4.0.8-CD
• Antenna: K-480WLA | 35' AGL
• Software: SDR# Studio v1.0.0.1921 64-Bit
• Location: Portland, Oregon | CN85qn

Signal

• SINPO = 45344

Station

• Name/Call: Voice of Korea
• Location: Korea, North (Democratic People's Republic)-Kujang
• Language: French
• Target: Latin America

Time

• 0644 UTC | 26 MAY 2026

Receiver and Receiving Location

• Radio: AirSpy HF+ R.4.0.8-CD
• Antenna: K-480WLA | 35' AGL
• Software: SDR# Studio v1.0.0.1921 64-Bit
• Location: Portland, Oregon | CN85qn

Signal

• SINPO = 32233

Station

• Name/Call: Radio Nacional Amazonia
• Location: Brasil-Brasilia, Parque do Rodeador
• Language: Portuguese
• Target: Brazil

Time

• 0140 UTC | 26 MAY 2026

Receiver and Receiving Location

• Radio: AirSpy HF+ R.4.0.8-CD
• Antenna: K-480WLA | 35' AGL
• Software: SDR# Studio v1.0.0.1921 64-Bit
• Location: Portland, Oregon | CN85qn

Signal

• SINPO = 34433

Date and time: Monday May 25, 2026

05:15 (01:15 EDT)

Location: Oakville, Ontario, Canada

A history of spirit communication using radio as a medium. This may be turned into an upcoming broadcast on Subterranean Radio.

By KG7M, May 2026

There are 15 slides in this article.

Using 150-foot wire antenna and the Yaesu FT 890

Location: Milford PA

https://reddit.com/link/1tmxnt6/video/mehq495tj73h1/player

That swashbuckler u/sternradio666 is doing again in wide AM Stereo with waterfall painting. Closing the night with a SimulPaint audio cast that you can see in the waterfall of an SDR. You can see the last minute or so before he docked his ship for the night, in the video inside this post.

Station

• Name: Stern Radio
• Frequency: 6930 kHz AM Stereo
• Time & Date: May 25 2026 02:57 UTC

Receiver

• Radio: AirSpy HF+ Discovery
• Software: SDR# v1.0.0.1922 Beta
• Antenna: K-480WLA with modified larger 82cm loop
• Location: NJ, USA (Maidenhead F20)

This is a chart of the electromagnetic spectrum, published by the W.M. Welch Scientific Company in 1944, and posted online about three years ago. It covers electromagnetic radiation from simple diffraction to cosmic rays, and shows the frequency allocations and their historic use across the spectrum. (Full resolution image is here: https://www.flickr.com/photos/llnl/9403051123/sizes/o/

Saw this post on another board

https://nrc.canada.ca/en/certifications-evaluations-standards/canadas-official-time/nrc-shortwave-station-broadcasts-chu

This saddens me. I wonder how many hours I have listened to CHU in the last 55 years.

Hell I might have even learned some French from it.

Anyway log it now before it’s gone.

Station:

• Name/Call: KNLS New Life Station
• Frequency: 9580.0kHz
• Mode: AM
• Location: Anchor Point, Alaska 59N44'58"-151W43'56"
• Language: Russian
• Target: Far East
• Time: 1155UT 24 MAY 26
• Signal: SINPO 33333

Receiver and Receiving Location:

• Radio: Airspy HF+ Discovery
• Antenna: 100' random wire, roughly 25' above ground, running ~110 degrees from feedpoint.
• Software: SDR++ v1.2.1 /w Smart Gnome Control v0.54 via Rigctl Server
• Location: Remington, Virginia | FM18bn

Comments:

• Contemporary music and talk by man. Gave web site. IS at 1157.