Monthly Archives: June 2019

Maarconi Mathaai: A radio-centric teaser trailer

Many thanks to SWLing Post contributor, Nithin George, who shares this teaser trailer of an upcoming Malaysian film called “Maarconi Mathaai“:

Click here to view on YouTube.

I’ll be the first to admit that I don’t understand the dialog in this trailer, but it certainly appears that Nithin is correct in saying that it’s a “film dedicated to all radio lovers.”

Thanks for sharing this, Nithin!

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Inexpensive wideband amplified mag loop receiving antenna on eBay

Many thanks to SWLing Post contributor, Ola, who shares a link to this inexpensive mag loop antenna on eBay.

I have no clue if this antenna performs as well at all, but the price is certainly much lower than its competition at $47.99 US.

It appears you’ll need to supply your own dielectric center support  for this loop–a length of PVC would do the trick.

Copycat–?

I don’t like the fact this manufacturer has chosen the name “Mega Loop Active” for their antenna as the name is too similar to Bonito’s “MegaLoop FX Active.” I don’t like the confusion that could create, so I would hope this Chinese manufacturer would change this in time.

To be very clear, this product has no affiliation with Bonito and I certainly would not expect the quality or performance you would get from a Bonito product. Bonito products are pricey, but they’re design and manufactured in Germany and set benchmarks in terms of performance and quality. I’m a big believer in “you pay for what you get.”

I suppose though if you’re just looking for a cheap antenna to test, this one is quite inexpensive. Just know that it is not a Bonito MagaLoop, despite the similarities in product name! 🙂

Click here to view on eBay.

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Bill recommends Slow Scan Radio

Many thanks to SWLing Post contributor, Bill Hemphill (WD9EQD), who writes:

I have enjoyed listening to Scow Scan Radio SWL Program.

I used a WebSDR to receive it.

http://www.slowscanradio.com/

But it has been off the air for the past weeks due to some minor health issues. The program was interesting in that besides Slow Scan photos, he also did other digital modes using FLDigi.

Some of the test included multiple digital signals in the same waterfall.

When I went to website today to check to see if there were any updates on when it might return to the air, I discovered that he is doing a podcast: Daily Minutes Podcast. Following is podcast feed:

https://dmpodcast.net/feed/

This podcast is a combination of new items as well as some re-runs of earlier Show Scan Radio programs. They also are a combination of English & Dutch. The June 13 & 14 podcasts are about off-shore radio. Very interesting and enjoyable.

The Jun 12 & 14 podcasts include a re-run of an earlier Slow Scan Radio Show in the last thirty minutes of the podcast.

[The screen shot at the top of the page is a] sample of the start of the digital portion.

Very cool! Thank you for sharing this, Bill!

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FTIOM & UBMP, June 30-July 6


From the Isle of Music, June 30–July 6:

This week our special guest is Arlenys Rodríguez, who in addition to her own projects has performed with NG La Banda and collaborated with several other artists.
The broadcasts take place:
1. For Eastern Europe but audible well beyond the target area in most of the Eastern Hemisphere (including parts of East Asia and Oceania) with 100Kw, Sunday 1500-1600 UTC on SpaceLine, 9400 KHz, from Sofia, Bulgaria (1800-1900 MSK)
If you don’t have a shortwave radio or are out of range, you can listen live to an uplink from a listening radio in the Netherlands during the broadcast at
http://websdr.ewi.utwente.nl:8901/?tune=9400am
2. For the Americas and parts of Europe, Tuesday 0000-0100 UTC (New UTC) on WBCQ, 7490 KHz from Monticello, ME, USA (Monday 8-9PM EST in the US).
If you don’t have a shortwave or are out of range, you can listen to a live stream from the WBCQ website here (choose 7490)
http://www.wbcq.com/?page_id=7
3 & 4. For Europe and sometimes beyond, Tuesday 1900-2000 UTC and Saturday 1200-1300 UTC on Channel 292, 6070 KHz from Rohrbach, Germany.
If you don’t have a shortwave radio or are out of range, you can listen live to an uplink from a listening radio in the Netherlands during the broadcast at
http://websdr.ewi.utwente.nl:8901/?tune=6070am

Uncle Bill’s Melting Pot, June 30 and July 2, 2019:
Episode 119 features Klezmer music old and new.
The transmissions take place:
1.Sundays 2200-2230 UTC (6:00PM -6:30PM Eastern US) on WBCQ The Planet 7490 KHz from the US to the Americas and parts of Europe
If you don’t have a shortwave or are out of range, you can listen to a live stream from the WBCQ website here (choose 7490)
http://www.wbcq.com/?page_id=7

2. Tuesdays 2000-2030 UTC on Channel 292, 6070 KHz from Rohrbach, Germany for Europe.
If you don’t have a shortwave radio or are out of range, you can listen live to an uplink from a listening radio in the Netherlands during the broadcast at
http://websdr.ewi.utwente.nl:8901/?tune=6070am

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The lab599 Discovery TX-500 ruggedized portable QRP transceiver

Many thanks to SWLing Post contributor, Vlad, who shares some images and a video of a new QRP transceiver in development: the Discovery TX-500 by a company called lab599.

Specifications have not been published yet, but we have confirmed a few details from the manufacturer:

  • 10 watts PEP
  • HF plus 6 meters
  • Weight 570 grams (1.25 pounds)
  • Voltage 9 – 14 VDC
  • 105 milliamps at 13.8 VDC and with backlit display on
  • CAT control via USB and using Kenwood codes
  • I/Q outputs
  • Weatherized
  • Expected availability autumn 2019
  • Target retail price is $700 US
  • Product website is forthcoming

All of the following images came from the Discovery TX-500 gallery on Instagram:

Here are a few videos:

View this post on Instagram

Discovery TX-500, Lab599

A post shared by Laboratory599 (@discovery_tx_500) on

Click here to view on Instagram.

Click here to view on Instagram.

Click here to view on Instagram.

For someone, like me, who loves playing radio in the field (Parks On The Air and Summits On The Air) this looks like an ideal rig. It’s one of the only ham radio transceivers I’ve seen that is weatherized to some degree (how much, we don’t know yet).

I don’t see a speaker on the TX-500, so I’m guessing it might require a mic/speaker combo or an external speaker of some sort? I also don’t see a built-in ATU, but at $700, I certainly wouldn’t expect one.

With a power consumption of 110 milliamps at 13.8 VDC, this little transceiver should run for ages on a modest battery pack.

This is certainly a fascinating prototype QRP transceiver. If the Discovery TX-500 transceiver can be produced and marketed at $700 with all of the features mentioned so far, it should certainly fly off the shelves. They can certainly take my money!

Of course, I will plan to grab one of these for review. I’m also eager to see how this little SDR transceiver might perform on the broadcast bands.

We will post post TX-500 updates and details as they become available. Bookmark the tag Discovery TX-500 and stay tuned!


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