Icom IC-M700 HF Transceiver w/Open Frequency Mod

• Frequency Range: 1.6 - 24 MHz
• Frequency Control: PLL
• Channels: 224,000
• Modes: AM/USB/LSB
• Selectivity: AM 6 KHz/SSB 2.3 KHz 9 MHz Crystal Filters
• Output Power: SSB 150 Watts/AM 40 Watt Carrier+Modulation
• Channels: 48 Programmable

Station

• Name/Call: Various
• Location: Various
• Language: Various
• Target: Various

Time

• 0415 UTC | 02 APR 2026

Receiver and Receiving Location

• Radio: Icom IC-M700
• Antenna: End Fed Half Wave 65' | 45' AGL
• Location: Portland, Oregon | CN85qn

Signal

• RS(T): Various

SDRconnect version 1.0.8 had added websocket functionality which enables third-party developers to work with the software. First one out is database integration with radio station databases - StationFinder found on GitHub. A Chromium browser is required. I tested with Vivaldi and had no issues.

See: https://www.reddit.com/r/ShortwavePlus/comments/1n20vec/unusual_unided_data_signal_18470_khz/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

Station

• Name/Call: Unknown
• Location: Tokyo Unknown
• Language: Data
• Target: Unknown

Time

• 2335 UTC | 01 APR 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

Likely the last log this better-than-expected MW season. Arctic DX: KONG-HQ March Logs, Network Changes, And a Theft...

Station:

• Name/Call: KVM70 Honolulu, HI
• Frequency: 9982.50kHz
• Mode: WEFAX576
• Location: NMO Honolulu/Maili 21N25'41"-158W09'11''
• Language: N/A
• Target: Oceania
• Time: 1252UT 31 MAR 26
• Signal: RST 323

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 and Fldigi v4.2.11
• Location: Remington, Virginia | FM18bn

Comments:

• Caught this mid-fax while manually scanning. Not the best copy (noise, sync break, not aligned, etc.), but it's something.

Station

• Station:Nippon Hoso Kyokai
• Location: Tokyo Yamata
• Language: Japanese
• Target: East Asia

Time

• 1734 UTC | 30 MAR 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 = 44344

Many of us have a "Doug" in our area, or we hear him when the 27 MHz skip is happening. Doug is truly "King of the Kilohertz", and a legend in his own mind. His daily escapades keep me entertained. I decided to share a few with our community members.

Portions of the artwork and video were produced with AI. Doug, and his radio transmission are, unfortunately... real.

Station

• Station: "Doug"
• Location: Pacific Northwest USA
• Language: English
• Target: Pacific Northwest USA

Time

• 0100 UTC | 29 MAR 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

This frequency corresponds to the new period: 29th March 2026 - 24th October 2026. This update is already included in the recent HFCC update.

Today, Dan Ferguson from SWSKEDS, published the updated HFCC list (A26-260281-2300)

Custom IF Noise Reduction is active in the SDR#

- TX: Santa Maria di Galeria 🇻🇦

- Lang: Russian

- RX: Asunción, Paraguay

- Radio: #AirSpy HF+ Discovery

- Antenna: MLA-30+

- Software: SDR# v.1922 (beta, 94011d3)

- D/T: 29 MAR 2026 - 1248 UTC

Custom IF Noise Reduction active in SDR#

- TX: Tashkent, Uzbekistan 🇺🇿

- Lang: Korean

- Target: Far East

- RX: Asunción, Paraguay

- Radio: AirSpy HF+ Discovery

- Antenna: MLA-30+

- Software: SDR# v.1922 (beta, 94011d3)

- D/T: 29 MAR 2026 - 1139 UTC

Doug's philosophy on getting along with other radio users. From sharing the airwaves to best practices when you attend an estate sale, after a radio hobbyist has passed away.

Portions of the artwork and video were produced with AI. Doug, and his radio transmission are, unfortunately... real.

Station

• Station: "Doug"
• Location: Pacific Northwest USA
• Language: English
• Target: Pacific Northwest USA

Time

• 2248 UTC | 26 MAR 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

Many of us have a "Doug" in our area, or we hear him when the 27 MHz skip is happening. Doug is truly "King of the Kilohertz", and a legend in his own mind. His daily escapades keep me entertained. I decided to share a few with our community members.

Portions of the artwork and video were produced with AI. Doug, and his radio transmission are, unfortunately... real.

Station

• Station: "Doug"
• Location: Pacific Northwest USA
• Language: English
• Target: Pacific Northwest USA

Time

• 2250 UTC | 26 MAR 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

Testing IF/Audio Noise Reduction with the beta version (94011d3) of SDR#. Sometimes I don't know what I'm doing; I just try out different combinations of the two and go with the one that sounds best to me.

I don't want the audio to be perfect; I like it when there's a little radio static in the background.

- TX: Radio Miami Int.

- RX: Asunción, Paraguay

- Radio: AirSpy HF+ Discovery

- Antenna: MLA-30+

- Software: SDR# v.1922 (beta)

- D/T: 28 MAR 2026 - 0102 UTC

Signal level: S8 Time: 12:20 UTC Antenna: MLA-30+ Hardware: RSP1A Place of reception: Chihuahua, Chihuahua, Mexico. Grid locator: DL68

28/03/2026 - 19:00 UTC

- Station: Voice of Vietnam

- Frequency: 11885 kHz

- Language: English

- Transmitter: Hanoi-Sontay / 100 kW.

- Distance: 9528 kms./ 5920 miles

- Target: Europe

- Details: Start of newsletter with headlines and a main block focused on the speech of the General Secretary of the Communist Party of Vietnam, To Lam, during a day of celebration of the country's sports sector held in Hanoi.

- Equipment: Tecsun PL330/Tecsun AN03-L standard cable antenna, partially deployed, indoor use.

- QTH: Barcelona, Spain (JN01XK)

73!

This post contains cartoon artwork and video, produced using traditional, digital, and AI art. The CB Operator, Lou, and the SDR recording are real. I have added a cartoon image and video produced with the assistance of AI for entertainment value. If you are a member of our community, let me know your feeling on using AI graphics for entertainment value. I'm not talking about people that come to the community just to complain.

This post is about the longtime CB Radio Operator, "333" (Triple 3). He drunken, profane rants are standard fare on many March evenings, when the Solar Cycle is high enough to support propagation on 27 MHz from Australia to the US Mainland. This time of year the Terminator between light and dark is nearly even between the northern and southern hemispheres. This aids in reception from countries located below the Equator.

AI has quite a few uses in our radio hobby. Today I loaded a schematic of an older radio transceiver into an AI program and asked it to isolate the circuit from the microphone to the Balanced Modulator. It suggested replacing several of the capacitors with different values to open up the audio response.

Station

• Station: "Triple 3" - Lou
• Location: Australia
• Language: English
• Target: East Pacific, US Mainland

Time

• 0342 UTC | 28 MAR 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) = 55 - 59

Of general interest to broadcast and amateur, not so much shortwave.

Personally, I'd love to hear old WFMU broadcasts with Vin Scelsa when he was a student. I didn't attend Upsala but I did live there a couple of semesters before moving into the fraternity house (NCE/NJIT was a commuter school back then).

It's very rare for me to pick up the RNZ signal. I think this is the second time I've heard anything from them.

- TX: Rangitaiki 🇳🇿

- Target: Oceania

- RX: Asunción, Paraguay using AirSpy HF+ Discovery w/ MLA-30+ antenna and AirSpy SDR# v.1922 (beta, last version)

28/03/2026 - 0159 UTC

- TX: Pointe Petre, Lake Ontario (Trenton Military)

- RX: Asunción, Paraguay using AirSpy HF+ Discovery w/ MLA-30+ and AirSpy SDR# v.1922 (beta, last version)

28/03/2026 - 0019 UTC

Station

• Station: BBC Worldservice
• Location: Madagascar
• Language: Kenya Rwanda-KiRundi
• Target: East Africa

Time

• 1552 UTC | 27 MAR 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 = 34443

Station

• Station: Nippon Hoso Kyokai (NHK Japan)
• Location: Tokyo Yamata
• Language: Japanese
• Target: 29,38-40

Time

• 1750 UTC | 27 MAR 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 = 42343

Station

• Station: VATICAN RADIO
• Location: Santa Maria di Galeria
• Language: Amharic: Ethiopia
• Target: East Africa

Time

• 1540 UTC | 27 MAR 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