Author Archives: Thomas

Dave’s review of the Icom IC-7300

Icom-IC-7300-Front

Many thanks to SWLing Post contributor, Dave Zantow (N9EWO), who shares a link to his excellent review of the Icom IC-7300:

Click here to read Dave’s review.

I can tell Dave has put a lot of time and thought in this evaluation of the IC-7300–it’s a worthy read, especially if you’re considering an IC-7300 yourself.

Overall, Dave’s impressions of the ‘7300 are similar to mine (click here to read my ‘7300 review). The IC-7300 is a great rig and (though there are a few minor tweaks needed) the general coverage receiver is sensitive and selective enough to satisfy even the seasoned SWL DXer. Dave even pits the ‘7300 against the WJ-8711A commercial receiver.

Note Mike commented in a previous post that the IC-7300 had difficulty coping with the RF-dense environment of Field Day, but in truth, that is one of the most difficult environments for any ham radio transceiver.

If you own an IC-7300 and have any comments or impressions, please share them with us!

RFI from solar power installations

PV-Solar-Panels

(Source: Southgate ARC)

The Netherlands national amateur radio society VERON reports on the pollution problems caused by Solar Panels installed on homes

Electrical systems such as solar panel installations must comply with EMC (Electro Magnetic Compatibility) standards. That means that there is a limit to the electromagnetic fields (EMF) that an electrical system, such as the combination solar panel and inverter including cabling, may emit.

However, a 2014 study in 14 European countries by the EMC Administrative Cooperation Working Group found this emission limit is more often than not exceeded.

Read the full story in Google English at
http://tinyurl.com/VERON-Solar-Panel-Pollution

VERON
http://tinyurl.com/NetherlandsVERON

China nears completion of world’s largest radio telescope

FAST radio telescope [Photo/Xinhua: State Council, People's Republic of China]

FAST radio telescope [Photo/Xinhua: State Council, People’s Republic of China]

(Source: BBC News)

China has fitted the final piece on what will be the world’s largest radio telescope, due to begin operations in September, state media report.

The 500m-wide Aperture Spherical Telescope, or FAST, is the size of 30 football fields.
The $180m (£135m) satellite project will be used to explore space and help look for extraterrestrial life, Xinhua news agency reported.

Advancing China’s space program remains a key priority for Beijing.[…]

Click here to read the full article and watch the accompanying video. 

There’s a pattern in that noise!

Digital-Image-VOA-Radiogram

Many thanks to SWLing Post contributor, @K7al_L3afta, who just shared the image (above) and noted, on Twitter:

“I just discovered the noise at the start of [the VOA Radiogram has] a purpose!” 

That’s a brilliant discovery!

Click here to learn about the VOA Radiogram.

Click here to follow @K7al_L3afta on Twitter.

Propaganda from the air

China-y-8gx8

Many thanks to SWLing Post contributor, Ken Hansen, who (several weeks ago) shared a link to this article from The Daily Beast:

China Now Has A Flying Propaganda Machine

The Chinese military has a new warplane with an unusual purpose: to beam propaganda and disinformation into hostile territory.

In that way, the new, four-engine Y-8GX7 psychological operations plane—also known by its Chinese name, Gaoxin-7—is analogous to the U.S. Air Force’s EC-130J, which it says“conducts military information support operations and civil affairs broadcasts in F.M. radio, television and military communications bands.”

A flying radio outpost might seem rather retro, even quaint, in the internet era. But in many of the world’s worst conflict zones, internet access is limited—and people still get much of their information from radio and television.

EC-130s—which has its own nickname, “Commando Solo”—and similar U.S. aircraft like it have broadcast propaganda in nearly all U.S. conflicts since the Vietnam War. Perhaps most famously, EC-130s flew over Libya during the 2011 international intervention in that country, in one case advising Libyan navy sailors to stop resisting and remain in port.

“If you attempt to leave port, you will be attacked and destroyed immediately,” the EC-130J crew warned via radio in English, French, and Arabic. A Dutch ham radio operator overheard and recorded the broadcast.

According to the Air Force, the EC-130Js deployed to the Middle East in 2015. While the flying branch didn’t specify exactly where the psyops planes went or why, it’s likely they supported the U.S.-led war on ISIS, perhaps bombarding militant fighters with warnings similar to those the EC-130J crews broadcast over Libya five years ago.[…]

Click here to read the full article on The Daily Beast.

The Giant Jukebox tonight via shortwave

wurlitzerJukeboxI’ve just learned that The Mighty KBC will broadcast The Giant Jukebox on Sunday from 00:00 – 01:00 UTC. 

To be clear, that’s tonight in North America–and only four hours from time of this posting!

Frequency will be 9,925 kHz.

I’ll try to listen from here in Québec. I hope their 125,000 watts will punch through the local QRM!

WRTH updates A16 schedule

WRTH-2016

(Source: Sean Gilbert via WRTH Facebook page)

WRTH has released an A16 broadcast schedules update PDF file. This file details frequency changes as well as other scheduling amendments. Included are the new single transmitter schedule of RNZI and the new COTB station targeted to Burundi.

[From this page], click on ‘International Updates’ and select the ‘July updates’ file.