u/ImladMorgul

On Saturday at 2047 UTC I came across this signal while listening to Russian FSK/CW; so far I haven't been able to find anything similar. About halfway through the video, a voice can apparently be heard.; I tried other modes but it didn't work. At 00:45 seconds it sounds more intense.

I didn't have much time to try it out further, it was all very fast.

At first it reminded me of the sound of the Wefax, but this one was much more intense and had strange patterns. I think it's some kind of image transmission.

Any idea what it could have been?

- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Software: SDR# v.1922 (beta)
- Antenna: K-480WLA
- Date/Time: 16 MAY 2026 - 2047 UTC

Perhaps this is related to u/KG7M posts about strange CW signals below 40 meters that he published yesterday.

I had replied to him that I saw some unusual CW signals at almost the same frequency he mentioned in his post. But I didn't know exactly what they were. Today they showed up again, and there are two groups of two signals, each separated by 7 kHz.

- First group: 6945.5 and 6948.5 kHz
- Second group: 6963 and 6970 kHz

According to u/Green_Oblivion111, they could actually be Russian military FSK signals.

But I'm so far from Russia that I'm not sure if these are the signals.

Related posts:

https://www.reddit.com/r/ShortwavePlus/comments/1tdht5m/very\_strange\_dual\_cw\_morse\_signals\_7\_khz\_apart\_43/

https://www.reddit.com/r/ShortwavePlus/comments/1tdi15e/back\_again\_tonite\_strange\_dual\_cw\_morse\_signals/

- TX: IDK
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Software: SDR# v.1922 (beta)
- Antenna: K-480WLA
- D/T: 15 MAY 2026 - 2209 UTC

It's been a while since I've been able to tune in to Radio Romania so clearly.

- Lang: Spanish
- Target: South America
- TX: Tigănești, Rumania 🇷🇴
- RX: Asunción, Paraguay
- Radio: XHDATA D-808
- Antenna: 25-meter longwire antenna (82 feet)
- D/T: 7 MAY 2026 - 2354 UTC

I bought it last week and it arrived in my country today. According to the label on the device, it was manufactured recently, in January of this year. The antenna and its accessories appear to be of good quality and seem durable

I bought it on Amazon from the GOOZEEZO store; that’s where I’d previously purchased my MLA-30 antennas and other items. I’ve never had any issues with that store, and all their products have worked well for me and are of good quality—I highly recommend them. (I have no affiliation with that store; I'm just sharing this in case it's helpful to someone else.)

Anyway, it's finally here, and this weekend I'll be doing the first tests—just as it is, with all its accessories and cables, without any modifications.

The post includes photos of the box contents that many of you are already familiar with; I've added photos with translations of some parts. I also bought some TNC-to-F adapters so I could test them with the RG6 cables I use with F-type connectors.

The last image isn't mine; someone on a Russian forum opened up the external box, and there's nothing special inside. I assume the white part covers a ferrite ring (balum) or some small integrated circuit.

This is Rádio Inconfidência other (primary) frequency. The best-known frequency, which can be received in various parts of the world, is 15190 kHz.

In January of this year, the 6010 kHz frequency became operational again on a continuous basis. Before that, the signal was intermittent because it was undergoing maintenance (which took some time).

Even though Brazil is right next to me, I hardly ever pick up its signal on 6010 kHz. I very rarely hear anything, like I do now.

- TX: Belo Horizonte, MG 🇧🇷
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Antenna: MLA-30+
- Software: SDR# v.1922 (beta)
- D/T: 2 MAY 2026 - 2358 UTC

I Never heard (received) before the female voice from the WWVH signal from Hawaii. Only the male voice from WWV from Colorado comes in clearly here in Paraguay.

Last night there wasn't much activity on HF (for me), but I was able to pick up this signal and the time signal from Russia.

- TX: Kauai Island, Hawaii - Pacific Missile Range Facility (Navy base)
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Antenna: MLA-30+
- Software: SDR# v.1922 (beta)
- D/T: 2 MAY 2026 - 0259 UTC

This is the first time I've listened to the Russian time signal. I'm not getting a good signal on almost anything tonight, but this one did come through from the shadows.

I listened for quite a while; it has several different segments. I didn't know much about them, so I looked up information about the transmission. I even heard rapid pulses and then the CW signal with its call sign.

The video contains 1 minute of CW with the station call sign, followed by one pulse per second.

- Target: Russian Federation
- TX: Taldom - Severnyj 🇷🇺
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Antenna: MLA-30+
- Software: SDR# v.1922 (beta)
- D/T: 2 MAY 2026 - 0238 UTC

The final moments of the soccer match between Atlético Madrid and Athletic de Bilbao in Spanish soccer's first division.

- Target: South America

- TX: Noblejas 🇪🇸

- RX: Asunción, Paraguay

- Radio: AirSpy HF+ Discovery

- Antenna: MLA-30+

- Software: SDR# v.1922 (beta)

- D/T: 25 APR 2026 - 2054 UTC

P.S.: In the first few seconds of the video, when the commentator shouts "Goool!", I think I hear CW tones. Maybe it's just background noise from that moment. But it sounds like Morse.

I had read a couple of months ago that they were testing broadcasts on two shortwave frequencies—11885 kHz and 15295 kHz—but at low power.

The station is operated by Radio Televisyen Malaysia (RTM), and it appears they are now broadcasting continuously.

- Lang: Malay

- TX: Kajang, near Kuala Lumpur 🇲🇾

- RX: Asunción, Paraguay

- Radio: AirSpy HF+ Discovery

- Antenna: MLA-30+

- Software: SDR# v.1922 (beta)

- D/T: 25 APR 2026 - 1049 UTC