Category Archives: News

Only 24 hours to work the special Y8 call signs

(Source: Southgate ARC via Ralf Bender)

The ex-DDR call-sign group from Y81A through Y89U, not used for 28 years has been issued especially for the WRTC Championship in Wittenberg, Germany.

BUT …. These call signs will ONLY be on the air for the 24 hours of the WRTC / IARU HF contest – after that these call signs may never appear on the air again – or perhaps only in another 28 years?

All stations are built and all competitors out on their sites waiting patiently to be able to use these very special call-signs from 1200 UTC on Saturday 14th. July.

The stations will be active on CW & SSB on all contest bands from 80m through 10m. Not only is this the ONLY opportunity to work these call signs, there’s also a range of awards available for working the WRTC stations.

Full award details, live streams, on-line scoreboard and a daily news report is available from the website at www.wrtc2018.de.

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KiwiSDR network adds Time Difference of Arrival direction-finding functionality

There has been some fascinating functionality added to the excellent KiwiSDR network of online software defined radios: Time Difference of Arrival (TDoA) direction-finding functionality.

RTL-SDR.com has posted an informative article about this new feature and how effectively it works:

The KiwiSDR is a US$299 HF SDR that can monitor the entire 0 – 30 MHz band at once. It is designed to be web-based and shared, meaning that the KiwiSDR owner, or anyone that they’ve given access, can tune and listen to it via a web browser over the internet. Many public KiwiSDRs can be found and browsed from the list at sdr.hu or by signal strength and location on this website.

One thing that KiwiSDRs have is a GPS input which allows the KiwiSDR to run from an accurate clock, as well as providing positional data. Time Difference of Arrival (TDoA) is a direction finding technique that relies on measuring the difference in time that a signal is received at over multiple receivers spread out over some distance. In order to do this an accurate clock that is synchronized with each receiver is required. GPS provides this and is able to accurately sync KiwiSDR clocks worldwide.

Just recently all KiwiSDRs were pushed with a beta update (changelog) that enables easy TDoA direction finding to be performed with them. Since many KiwiSDRs are public, this means that right now anyone can browse to a KiwiSDR web interface and start a direction finding computation. You don’t even need to own a KiwiSDR to do this so this is the first freely accessible RF direction finding system available to the public.[…]

Of course, as the KiwiSDR network grows, TDoA accuracy will increase.

If you’d like to host your own KiwiSDR, you can purchase the full setup at SeedStudio or Amazon.com for $299 US (affiliate link).

Check out RTL-SDR.com’s full article and TDoA tests by clicking here.

Click here to go to the KiwiSDR portal.

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“Night of Nights” Returns Tonight!

Chief Operator Richard Dillman at Position 1 (Source: Maritime Radio Historical Society)

Many thanks to SWLing Post contributor, Brian Smith (W9IND), who writes:

The cast may be smaller than in previous years, but the “Night of Nights” nostalgia show will go on. At 8:01 p.m. Eastern Time today (0001 UTC July 13), two maritime CW stations operated by the Maritime Radio Historical Society will begin transmitting Morse code on shortwave and medium wave bands, while the Society’s amateur radio station will be active on four ham bands.

Venerable KPH will reappear tonight in the company of KFS and ham station K6KPH, all transmitting from a century-old Marconi site at Bolinas, California. They’ll be directed from a 1930 RCA station at 17400 Sir Francis Drake Boulevard in Point Reyes National Seashore. Several previous participants will be absent this year, including ship-to-shore powerhouse WLO of Mobile, Alabama, and a quartet of Coast Guard stations.

The annual July 12 event commemorates the date in 1999 when commercial Morse code operations ceased in the United States. One year later, “Night of Nights” debuted in a defiant declaration that maritime CW stations would not go gentle into that good night.

Typically, the two 5 kw coast stations transmit “code wheels” (repeating messages), personal messages, and tributes to long-gone maritime stations and operators, remaining on the air till at least 0700 UTC. And K6KPH will not only be heard, but contacted by fellow amateur radio stations. A list of KPH, KFS and K6KPH frequencies can be found at www.radiomarine.org, including those used by ships. Reception reports go to P.O. Box 392, Point Reyes Station, CA 94956.

The public is welcome to observe today’s event and tour the facility at Point Reyes. Doors open at 3 p.m. local (Pacific) time, and Morse aficionados are invited to operate K6KPH. Whisper the words “true believer” for a peek at the Treasure Room!

https://www.nps.gov/pore/planyourvisit/events_nightofnights.htm

For a comprehensive list of frequencies please click here.

Many thanks for the notice, Brian! We’ll tune in!

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Impressive Transatlantic FM DX: Newfoundland to Northern Ireland on 88.5 MHz

(Source: Southgate ARC)

88 MHz Trans-Atlantic signals heard in Ireland

On Sunday the 8th of July 2018, there was a remarkable opening on the VHF bands across the North Atlantic. While there were plenty of strong multi-hop Sporadic-E signals on the 28 MHz and 50 MHz bands, the maximum qusable frequency did reach as high as 88 MHz at one stage.

Paul Logan in Lisnaskea, Fermanagh, Northern Ireland managed to catch CBC radio 1 on 88.5 MHz from Newfoundland, Canada at 22:35 local time (21:35 UTC). It is very rare for openings on Band 2 across the Atlantic and to date, only two people have managed to succeed in hearing North American radio stations.

Click here to view video of reception on YouTube.

Click here to read the full article on EI7GL’s blog.

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Radio propagation may improve soon with region of solar flux

Many thanks to SWLing Post contributor, Mike Hansgen, who shares this latest Space Weather report from Tamitha Skov:

Space Weather jumps into action this week with two weak solar storms en route to Earth. NASA models predict they will hit starting July 9 and they could easily bring aurora to high latitudes, if not mid-latitudes. Amateur radio operators are also in for some fun as a new region rotates into view and brings with it a boost in solar flux, which will help radio propagation just in time for hurricane season. GPS users shouldn’t be affected by the low-level flaring of this region on Earth’s day side, but should stay vigilant near aurora and near the dawn-dusk terminators for glitches in their reception. Low-latitude GPS/GNSS reception might even improve under the influence of these weak solar storms. See details of the coming storms, when this new active region will be in view, catch up on aurora photos, and see what else is in store!

Click here to view on YouTube.

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Share your photos on Boat Anchor Tuesday!

Yesterday, as I took a little time to curate a massive collection of photos I took at the Museum of Radio and Technology, I posted a few “boat anchor” (heavy metal vintage radio) photos and labelled them “Boat Anchor Tuesday” on Twitter and Facebook.

Much to my surprise, I received a number of comments and emails with readers asking for more Boat Anchor Tuesday pics!

So I’ve decided to make it a feature here on the SWLing Post. After all, anyone who knows me knows that I’m a massive fan of boat anchors!

Your photos on Boat Anchor Tuesday!

Please send me a photo (or a few) of your favorite boat anchor. Every Tuesday, I’ll feature a reader’s boat anchor here on the SWLing Post.

If you can, include a few sentences about the radio: how you obtained it, what you like about it or any memories. We radio nostalgic people love this stuff!

Please send photo(s) and radio blurb to my email address found on our Contact page. I only plan to post one radio per week, so these will be scheduled far ahead to post automatically.

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Jeff discovers that the Sangean WR-2 loses time when playing radio

Many thanks to SWLing Post contributor, Jeff McMahon, who writes:

I wanted you to know that my Sangean WR-2 keeps perfect time when I don’t play the radio, but when I do play the radio I lose 25 minutes; the clock is 25 minutes slow in other words. I’ve read other complaints from Sangean owners, including from those who own the Sangean HDR-18. Some say it has something to do with RDS. Have you heard of this problem? It’s annoying because I have to reset my clock every morning.

Wow–an otherwise excellent radio that prominently features a clock should never have this problem. This problem essentially renders the clock useless.  I’m not sure what would cause this unless it’s incorrectly pulling time data from the RDS function?

Post readers: Have you noticed this fault in the WR-2, WR-18 or other similar models? Please comment.

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