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Carlos’ Illustrated Radio Listening Report and Recording of CGTN (October 1, 2024)

By: Thomas
2 October 2024 at 10:16
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his illustrated radio listening report of a recent CGTN broadcast. Carlos notes: Part of news bulletin of CGTN Radio (China Radio International) about hurricane “Helene” destruction in Southeast US. Listened in Rio de Janeiro, Brazil. Click here to view on YouTube.

Carlos’ Illustrated Radio Listening Report and Recording of NHK (September 28, 2024)

By: Thomas
1 October 2024 at 10:50
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent NHK broadcast. Carlos notes: Part of NHK news bulletin about assassination of Hezbollah leader Hassan Nasrallah in an Israeli airstrike. Listened tonight at Prainha Beach, Arraial do Cabo, Rio de Janeiro, Brazil. This is the first time I […]

A Clean Vintage Ham Radio Transmitter: The Collins 32S-3

24 September 2024 at 10:54


In an article on IMD and splatter,  tech guru Rob Sherwood noted that the cleanest tranmitter he had ever owened was the Colling 32S-3.   Here is the article.  https://soldersmoke.blogspot.com/2024/09/sherwood-its-time-to-clean-up-our.html
In it, you will see thar Rob has the spectrum anayser two tone test to prove his point.  

This got me wondering:  Why was the Collins transmitter so clean.   Today I looked at some ot the tech info on this rig.  I think I have found the answer. The Collins Collectors Association has a great page on the 32S-3: https://collinsradio.org/cca-collins-historical-archives/the-equipment-of-collins-radio/the-grey-boxes/32s-3/

The key lines are these:  


Click on the paragraphs or go to the link for a clearer view 


I think the explanation of Collins'32S-3 cleanliness is due to 1) Thermatrons in the final stages and 2) Negative feedback to take down any IMD products that might appear due to non-linearities in the finals.   

There is nothing magical in that technique.  Heck, we could homebrew that today.  We could build HDR stations (perhaps transistor-tube hybrids) that would be cleaner than their commercial SDR cousins. 

Carlos’ Shortwave Art and recording of NHK (September 22, 2024)

By: Thomas
23 September 2024 at 09:59
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent NHK broadcast. Carlos notes: Part of NHK news bulletin about heavy rains in Ishikawa Prefecture, Japan. Listened via shortwave in Brazil. Click here to view on YouTube.

Carlos’ Shortwave Art and recording of CGTN/China Radio International (September 15, 2024)

By: Thomas
16 September 2024 at 10:59
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent CGTN/CRI broadcast. Carlos notes: Part of CGTN Radio news bulletin about typhoon Bebinca approaching China. Listened via shortwave in Rio de Janeiro, Brazil. Click here to view on YouTube.

Carlos’ Shortwave Art and recording of NHK (September 15, 2024)

By: Thomas
16 September 2024 at 10:45
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent NHK broadcast. Carlos notes: Sounds like old news…but it’s not! Part of NHK news bulletin about typhoon nr. 14 approaching Japan. Listened via shortwave in Rio de Janeiro, Brazil. Click here to view on YouTube.

Yagi Aftermath: Carlos’ Shortwave Art and recording of Voice of Vietnam (September 11, 2024)

By: Thomas
12 September 2024 at 09:59
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent Voice of Vietnam broadcast. Carlos notes: Excerpt from the news bulletin of the “Voice of Vietnam” radio on Typhoon Yagi, September 11, 2024. Click here to view on YouTube. (Original in Spanish and translation for English follows) “…En […]

Carlos’ Shortwave Art and recording of the Voice of Vietnam (September 10, 2024)

By: Thomas
12 September 2024 at 09:39
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent Voice of Vietnam broadcast. Carlos notes: Part of news bulletin from Voice of Vietnam, right from Hanoi, about typhoon Yagi’s path of destruction in Northern Vietnam. Listened in Rio de Janeiro. “…The Vietnam Fatherland Front on Tuesday launched […]

Carlos’ Shortwave Art and recording of CGTN/CRI (September 7, 2024)

By: Thomas
8 September 2024 at 10:02
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent CGTN (China Radio international) broadcast. Carlos notes: Part of CGTN Radio (China Radio International) news bulletin about damages caused by Super Typhoon Yagi in Chinese provinces. Listened in Rio de Janeiro. Click here to view on YouTube.

Typhoon Yagi: Carlos’ Shortwave Art and recording of China Radio Inernational (September 4, 2024)

By: Thomas
5 September 2024 at 09:42
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent China Radio international broadcast plus radiofax transmissions from the Shanghai Meteorological Bureau. Carlos notes: Part of news bulletin from China Radio International about Super Typhoon Yagi. Listened in downtown Juiz de Fora, Brazil. Frequency of 13640 kHz. Click […]

Carlos’ Shortwave Art and recording of Radyo Pilipinas (September 2, 2024)

By: Thomas
3 September 2024 at 11:34
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent Radyo Pilipinas broadcast plus bonus Japan Meteorological Agency radiofax transmissions. Carlos notes: News bulletin from Radyo Pilipinas (12120 kHz) about the possibility of lahar flows from volcano Mayon due tropical storm “Enteng”. Lahar is a mixture of water, […]

Carlos’ Shortwave Art and recording of NHK (August 29, 2024)

By: Thomas
31 August 2024 at 10:58
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent NHK broadcast and JMA Radiofax. Carlos notes: NHK news bulletin about typhoon N° 10 bringing heavy rain to Japan. Listened in the grounds of the Faculty of Humanities of the Juiz de Fora University, Minas Gerais, #Brazil. Click […]

Carlos’ Shortwave Art, recording of NHK, and Radiofax Images (August 27, 2024)

By: Thomas
28 August 2024 at 10:30
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent NHK broadcast warning about the dangers of Typhoon #10. Carlos notes: #Japan braces for typhoon n° 10. News from NHK shortwave radio, listened on the grounds of Faculty of Humanities of the Juiz de Fora University, Minas Gerais, […]

Carlos’ Shortwave Art, recording of NHK, and Radiofax Meteorological Charts (August 24, 2024)

By: Thomas
25 August 2024 at 10:25
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent NHK broadcast and Japan Meteorological Agency Radiofax transmissions. Carlos notes: Here we go again with just another typhoon threatening Japan with powerful winds: Typhoon n°10 (Sham sham). Click here to view on YouTube. Japan Meteorological Agency charts received […]

Carlos’ Shortwave Art and recording of NHK (August 18, 2024)

By: Thomas
20 August 2024 at 11:36
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent NHK broadcast. Carlos notes: Excerpt of shortwave news bulletin from NHK about a earthquake that hit Ibaraki Prefecture. Listened in Rio de Janeiro with a solar-powered receiver, which can be used as an emergency radio set. Click here […]

Carlos’ Shortwave Art and recording of NHK World (August 14, 2024)

By: Thomas
15 August 2024 at 09:33
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent NHK broadcast. Carlos notes: Part of NHK shortwave radio news bulletin about typhoon n° 7 “Ampil” approaching Japan. Listened yesterday in Rio de Janeiro, Brazil. Click here to view on YouTube.

Carlos’ Shortwave Art and recording of Adventist World Radio (August 7, 2024)

By: Thomas
10 August 2024 at 16:21
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent AWR broadcast. Carlos notes: Part of Adventist World Radio evangelist preaching in Yoruba language to Nigeria and region, broadcasted from Nauen, Germany. Listened in Florianopolis, Brazil. Click here to view on YouTube.

Carlos’ Shortwave Art and recording of NHK (August 8, 2024)

By: Thomas
9 August 2024 at 10:27
Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent NHK World broadcast. Carlos notes: Part of Thursday’s NHK radio news bulletin about 7.1 earthquake that hit Miyazaki Prefecture, Japan. Listened in Florianopolis, Brazil. Click here to view on YouTube.
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