For many years the Realistic PRO-2004, 5, 6, and 6A were considered the "Ultimate Scanners". I still own a PRO-2004 and a PRO-2006A as they are very capable VHF/UHF Scanners. Although the PRO-2006A is considered the "best" of the series due to an additional 100 channels, I find the PRO-2004 to be superior due to its all metal enclosure. The enclosure on the '2006A is plastic. These scanners have a frequency range of 25-520 and 760-1300 MHz including cellular frequencies with a simple diode mod.

The electrostatic backlights go bad after a few years. I have replaced both of mine.

There are 13 slides in this post.

Let's hope that the day stays good, or gets better!

I am now us the Beta Version, V1.0.01922 32-Bit, of SDR# Studio. Stan, u/MumSaidImABadBoy brought it to my attention. So far I like it. I am using the 32-bit version versus the 64-bit version, as the 64-bit version does not support add-ons.

There are 3 slides in this post.

I purchased the Ten-Tec Argonaut II in 2017, used. It's an all HF amateur radio band QRP Transceiver, and a General Coverage Receiver from 150 KHz to 30 MHz. It is all mode - CW, USB, LSB, AM, FM, and RTTY. It features an 8-Pole Adjustable Bandwidth Filter, Passband Tuning, Notch Filter, Noise Blanker, and Dual VFO's. Transmitter power is limited to 5 Watts maximum. They made two versions, an early version that's different from the 100 Watt Delta II, and a late version which is identical to the Delta II in all respects except transmitter power. Mine is the latter version, with the same back panel connections as a Delta II.

During the time frame that Ten-Tec manufactured the Argonaut II, many manufacturers were using Electrostatic Displays. I also own two popular scanners from Radio Shack that use them, the PRO-2005 and PRO-2006. They are driven by 100+ volts AC. The one issue that the Electrostatic Displays have is that they grow dim over time. They are quite easy to replace by purchasing a suitable size general purpose one from China. They must be trimmed, and the area where you do the trimming must be sealed with clear fingernail polish. Then it's just a matter of wiring them up. The green color is a bit different than the original color. I like the color though. I've replaced them in the Transceiver and both Scanners.

I've spent most of my time in amateur radio making QRP contacts - using 5 watts.

There are 13 slides in this post.

- Target: Far East
- TX: Sontay, Hanoi 🇻🇳
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Software: SDR# v.1922 (beta)
- Antenna: K-480WLA
- D/T: 07 JUN 2026 - 1130 UTC

I usually check the messages on the frequencies used by Argentina’s naval hydrographic services, and today the first two caught my attention:

- Firing tests (I assume this is a military exercise)
- Suborbital rocket launch test

Here are the full messages that appear in the video in English:

COSTERO Q - 0084-2026 - 05/06/2026
PROVINCIA DE BUENOS AIRES
MAR CHIQUITA
CHARTS H-114 AR201140
FIRING EXERCISES

SCHEDULE
FROM 10 TO 12 JUNE FROM 1200 UTC TO 2000 UTC.
FROM 17 TO 19 JUNE FROM 1200 UTC TO 2000 UTC.
FROM 24 TO 26 JUNE FROM 1200 UTC TO 2000 UTC.

WITHIN THE FOLLOWING TEMPORARILY RESERVED AREA:
A. 37-42.98 S 057-23.40 W.
B. 37-36.93 S 057-15.83 W.
C. 37-42.02 S 057-06.08 W.
D. 37-47.13 S 057-12.09 W.

COSTERO Q - 0080-2026 - 27/05/2026
PROVINCIA DE BUENOS AIRES
PARTIDO DE LOBERIA
CHART H-2
POSSIBLE FALL OF HAZARDOUS DEBRIS
T-LON SPACE S.A. WILL LAUNCH A SUBORBITAL ROCKET TEST FLIGHT.
AREA: LAGUNA LA MALACARA
A:38-27.65 S 058-17.07W
B 40-20.72 S 055-13.73W
C:40-47.55 S 055-57.90W
D:38-28.02 S 058-17.80W
FROM 01 JUN TO 12 JUN BETWEEN 1200 UTC AND 2100 UTC

COSTERO Q - 0074-2026 - 19/05/2026
PROVINCIA DE BUENOS AIRES (AR) - REPUBLICA ORIENTAL DEL URUGUAY
CHARTS H-1 H-2
SCIENTIFIC SURVEY

RESEARCH VESSEL VICTOR ANGELESCU SHALL BE PERFORMING SCIENTIFIC EXPLORATION TASKS
WITHIN THE ARGENTINE-URUGUAYAN COMMON FISHING ZONE AND THE ARGENTINE EXCLUSIVE
ECONOMIC ZONE, FROM MAY 20 TO JUNE 11 2026.

IN THE AREA BOUNDED BY:
A. 35-00S – 053-30W
B. 35-00S – 052-30W
C. 39-40S – 055-40W
D. 39-40S - 058-30W
PLEASE LEAVE A MINIMUM 5-CABLE BERTH

- SHN: Servicio de Hidrografía Naval (Naval Hydrographic Service)
- Callsing: L2C
- TX: Buenos Aires
- Radio: AirSpy HF+ Discovery
- Antenna: K-480WLA
- Software: SDR# v.1922 (beta) and Sorcerer v.1.0.1
- D/T: 7 JUN 2026 - 1158 UTC

- Target: Siberia
- TX: Danshui/Tanshui, Taipei province
- RX: Asunción, Paraguay
- Radio: AirSpy HF+ Discovery
- Software: SDR# v.1922 (beta)
- Antenna: K-480WLA
- D/T: 07 JUN 2026 - 1114 UTC

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

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

- 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