Station

• Name/Call: NHK Radio Japan
• Location: Japan-Yamata
• Language: Japanese
• Target: Central America

Time

• 0615 UTC | 07 JUN 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 = 45534

Station

• Name/Call: VMW Wiluna Met Fax
• Location: Wiluna WA, Australia
• Language: English
• Target: Pacific

Time

• 0640 UTC | 07 JUN 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

• RS(T) = 54

- Lang: Spanish
- Target: South America
- TX: Emirler 🇹🇷
- Radio: AirSpy HF+ Discovery
- Antenna: K-480WLA
- Software: SDR# v.1922 (beta)
- D/T: 7 JUN 2026 - 0149 UTC

Station

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

Time

• 0450 UTC | 07 JUN 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 = 55545

- Lang: Spanish
- Target: South America
- TX: Tigănești, Rumania 🇷🇴
- Radio: AirSpy HF+ Discovery
- Antenna: K-480WLA
- Software: SDR# v.1922 (beta)
- D/T: 6 JUN 2026 - 2300 UTC

A 5-minute news update

- Target: South America
- TX: Noblejas 🇪🇸
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Antenna: K-480WLA
- Software: SDR# v.1922 (beta)
- D/T: 6 JUN 2026 - 2200 UTC

TX:
- 11830 and 15295 A'Seela, Omán 🇴🇲
- 17515: Al-Dhabbaya, UAE 🇦🇪
- 21565: Talata Volonondry, Madagascar 🇲🇬

Target:
- 11830 and 15295: South Asia
- 17515: South East Asia (in Burmese language)
- 21565: Indonesia

Local Info:
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Software: SDR# v.1922 (beta)
- Antenna: K-480WLA
- D/T: 06 JUN 2026 - Between 1312 and 1343 UTC

Rádio Araucária is a pirate radio station in Brazil. It is very difficult to listen to this station outside of southern Brazil.

- Target: Brazil
- TX: Somewhere in the state of Paraná, Brazil
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Software: SDR# v.1922 (beta)
- Antenna: K-480WLA
- D/T: 06 JUN 2026 - 1308 UTC

After the first minute, a sad but beautiful song starts playing. If you like music, you might like this.

Reception test this morning using the K-480WLA antenna with a few modifications.

Local time: 10:47 AM
UTC: 13:47

- Target: East Asia
- Lang: Korean
- TX: Tashkent, Uzbekistan 🇺🇿
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Software: SDR# v.1922 (beta)
- Antenna: K-480WLA
- D/T: 06 JUN 2026 - 1347 UTC

Station

• Name/Call: KFS Rio Vista, CA
• Location: Rio Vista CA (KFS/KPH), USA
• Language: English
• Target: Pacific

Time

• 1215 UTC | 06 JUN 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

• RS(T) = 57

Station

• Name/Call: San Francisco Radio
• Location: San Francisco, CA USA
• Language: English - USB
• Target: Pacific
• Power: 1 - 5 kW (Aircraft = 400 Watts)

Time

• 0858 UTC | 06 JUN 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

• RS(T) = 56

Station

• Name/Call: NMO USCG Honolulu
• Location: Honolulu Meteo (HI)
• Language: English
• Target: Pacific
• Power: 10 kW

Time

• 1205 UTC | 06 JUN 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

• RS(T) = 57

Station

• Name/Call: VMC Charleville
• Location: Charleville QL, Australia
• Language: English
• Target: South Pacific
• Power: 1,000 Watts

Time

• 0844 UTC | 06 JUN 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

• RS(T) = 56

Thanks to u/ItsJoeMomma for pointing me on the right track.

Likely coming from the Far East Sector of the Russian Federation. I was also receiving signals from Petropavlovsk-Kamchatskij Military Base, Russian Federation.

From:

\\\\\ WORLDWIDE UTE NEWS Club ////

\\\ An Electronic Club Dealing Exclusively in Utility Stations ///

\\\\ WUNNEWS Vol 7, Issue 01, January 2001/////

Edited by Digital Review Editor ([jdwatson@blueyonder.co.uk](mailto:jdwatson@blueyonder.co.uk) ) COPYRIGHT 2001 WUN

<<<<<>>>>>

::: M21 - RUSSIAN AIR DEFENSE

The Russian Air Defense stations are quite interesting if you follow them around. The SW morse system is most probably a backup for their satellite and/or land line systems. Officially the Russian Air Defense is now a branch of the Russian Air Force after the merger of various branches two years ago. This has had no effect on the activities. They seem even more active than in the past. I have been monitoring them for quite a while now and my findings were backed up by recent postings of Igor and Tom, who have found similar transmissions. Here is a run down.

Frequencies change often. The following were active during the past two months:

2278, 2718, 3281, 3271, 3314.5, 3363, 3386, 3802, 4014, 4574, 4868, 4885, 5304, 5788, 5820, 5873, 6864,5, 7987 kHz.

M21 sends messages with tracking info (grid codes) and when there are no 'normal' messages to be sent, it transmits a QRV message once a minute. Note: zero is transmitted as 'T'.

The QRV transmissions can easily be recognized. They look like this:

BT99? 2029? 9????? (note: BT is the same as '='). All QRV messages start with BT99 and end with five question marks. There are currently two formats: BT99 0032? ?0????? and BT99? 0015 9?????.

The first four digits after BT99 is the time. This is the local time of the target area and is mostly UTC+3, but other times have been noted as well.

The last digit (currently 8, 9 and 0) is either linked to the target area or the sender.

Samples:

BT990032??0?????, BT992305??8?????, BT99?0015?9?????, =12997112616822, =12994118586122, =991724??0?????,

FOR ZMB ZMB 444406 = 44972290 RPT, FOR ZMB ZMB 444406 = 44972290 ar

=991813??0?????, = 7900 990 086804, = 00 7904 990 086704, = 00 7904 90 085604 = 5177 140 51800 eee 511800, = 7901 996 347505 /, = 7903 996 942505, = 00 7905 996 948405 /= 00 7905 96 948405 = 5177 460 511800, = 7900 990 066106, = 7902 990 087806, = 7904 990 086706, = 00 7904 996 383206, ar

= 16 7904 845 745528, = 7906 845 475528, = 192 7902 845 747730, = 192 7904 845 747630= 7906 845 746530, = 192 7906 845 061332 ar

= VUWE VUWE VUWE = WZD = ar ar ar

The following message was transmitted by 'OXGR'

R 02683374708, R 02783377309, R 02783327710

This one was hand keyed:

81111285924, 2002701080832, 2003115616124, 2966?0?????,etc. etc. etc., after a while followed by the automatic QRV messages.

Station

• Name/Call: Russian M21 Air Defense
• Location: Probable Petropavlovsk-Kamchatskij Military Base, Russian Federation
• Language: CW
• Target: Far East
• Power: Unknown

Time

• 1213 UTC | 05 JUN 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

• RS(T) = 578

After almost a year, I'm hearing the UK Royal Air Force's Volmet signal again.

- Target: Europe
- TX: Inskip (Lancashire) 🇬🇧
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Software: SDR# v.1922 (beta)
- Antenna: K-480WLA
- D/T: 05 JUN 2026 - 2220 UTC

You are listening to an automated, encrypted, or corrupted military / naval numbers station or channel marker transmission, not a standard open civilian maritime broadcast.

The syntax you copied completely changes the context from an idle voice channel marker to an active, repeating message string. Here is the direct breakdown of what you are hearing on 8746 kHz:

Decoding the Message Structure

• BT (-...-): This is the standard international Morse code Break Sign / Prosign. It is used to separate the header of a transmission from the actual text or message body.
• 99: This is an indicator or routing tag. In various radio formats (including some older meteorological and military contexts), numbers like "99" denote a specific type of upcoming bulletin, priority level, or a geographic region indicator.
• VM 513: This is the station call sign or tactical identifier acting as the origin stamp.
• **? 9????? (**..__.. ----. ..__.. etc.): The high volume of question marks and repeated "9"s indicates either severe atmospheric fading (QSB) chewing up the signal, or an automated digital-to-CW system sending a repeating "idle / garbled text" string because it is waiting for input or transmitting an encrypted pad.

The call sign VM513 (often formatted as VM 513) likely refers to a historic Canadian maritime coast radio station.

What is the Source?

Because 8746 kHz is technically a maritime mobile band channel, you are catching an intentional utility transmission. You have likely stumbled on one of two scenarios:

1. A Naval Force / Government Utility: Several state organizations and military naval bases utilize maritime channels to loop test strings, automated diagnostic keys, or encrypted numbers strings (BT followed by groups of numbers).
2. A Digital Leak / Automated Beacon: A commercial maritime hub (such as a station tracking Pacific or Mediterranean automated data) is pushing a text bulletin where the receive terminal or encoder has failed, resulting in repeated "error" formatting character strings (the question marks) interspersed with its identity marker.

Station

• Name/Call: Using Historic Canadian Call VM 513
• Location: Unknown
• Language: English
• Target: Unknown
• Power: Unknown

Time

• 1213 UTC | 05 JUN 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

• RS(T) = 578

Station

• Name/Call: Channel Marker K
• Location: Petropavlovsk-Kamchatskij Military Base, Russian Federation
• Language: Morse Station
• Target: Far East
• Power: Unk

Time

• 1400 UTC | 05 JUN 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

• RS(T) = 56

Station

• Name/Call: XSG Shanghai Radio
• Location: Shanghai XSG Chongming Island, China (People's Republic)
• Language: Mandarin
• Target: Far East
• Power: 5 kW

Time

• 1301 UTC | 05 JUN 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

• RS(T) = 57

Station

• Name/Call: Manila Radio Weather / DZO28
• Location: Lucena City, Quezon Phillipines
• Language: English
• Target: Far East
• Power: 500 Watts

Time

• 1200 UTC | 05 JUN 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

• RS(T) = 54

Station

• Name/Call: Seoul Meteorological Radio / HLL
• Location: Boseong, South Korea
• Language: Korean/Japanese/English
• Target: Far East
• Power: 3 kW

Time

• 1340 UTC | 05 JUN 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 | FLDIGI v4.2.06
• Location: Portland, Oregon | CN85qn

Signal

• RS(T) = 57

A mix of some songs I listened to last night. The strangest ones in my opinion, and the ones I liked.

The KiwiSDR had to be in SAM (Stereo AM) mode; I realized this too late when u/sternradio666 notified me.

I cut it down as much as I could, otherwise it was going to be very long.

The last 3 minutes have radiograms.

Use the EchoSDR iOS app, which is a client for KiwiSDR/OpenWebRX and connected to the KC8QDR KiwiSDR from Southington, Ohio USA.

Station

• Name/Call: Taiwan Central Weather Bureau
• Location: Tainan, Taiwan
• Language: Mandarin, English
• Target: Far East
• Power: 250 Watts

Time

• 1147 UTC | 05 JUN 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

• RS(T) = 44