Monthly Archives: February 2017

Reminder: “Afternoon On The River” via WRMI Friday at 2200 UTC

Many thanks to SWLing Post contributor, Paul Walker, who shares the following reminder:

On Friday February 24th (today) starting at 2200 UTC and going until 0100 UTC on Saturday February 25th, the local afternoon program “Afternoon On The River” From KIYU 88.1 Galena, Alaska will be broadcast via the WRMI transmitter on 15770 kHz for the east coast of North America and western Europe. We’ll also be on 6855 kHz at the same time, beamed to the SW USA!

I’ve footed the bill for this personally and am doing this just for fun. No QSL’s being offered for this broadcast.

Just listen in and enjoy. A phone number is given out from time to time during the show for requests.

Many thanks, Paul!

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The W6LVP magnetic loop antenna

Many thanks to SWLing Post contributor, Troy Riedel, who asks:

Just curious if you or anyone you know have any experience with Magnetic Loops from W6LVP? […]Here’s his eBay page – 458 feedbacks and 100%.

Thank, Troy! I’ve never used the W6LVP loop, but the price–in comparison with other wideband mag loop receive antennas–is very attractive.

W6LVP currently offers two models of loop antennas:

Here’s the product description of the Mag Loop with Power Inserter from the W6LVP website (where orders can also be made–pricing identical to eBay):

The Wellbrook Model ALA1530LN-2 and DX Engineering (Pixel/Inlogis) Model RF PRO-1B magnetic loops are both good amplified receive antennas.  However, they are both expensive.  Shipping the Wellbrook antenna from the UK to the US adds another $100.

Extensive side-by-side testing of the Wellbrook, DX Engineering, and W6LVP receive loops was compiled using simultaneous WSPR signal-to-noise reception reports on all LF, MF, and HF amateur bands.  In addition, extensive laboratory bench tests measuring gain, signal-to-noise ratio, and IMD were also performed.  Signal-to-noise ratio is important to pull weak signals out of the noise and IMD is important to reject distortion caused by nearby strong transmitters such as AM broadcast stations.  In both test regimens, all three antennas performed very well and without significant difference.

The antenna version listed here includes a power inserter for use with receivers or with transceivers that have a separate receive antenna input.  If your rig doesn’t have a receive antenna input, check out my antenna with a transmit/receive switch.

If you live in the shadow of one or more high-power AM broadcast transmitters, contact me about a special version just for you.  Please contact me at [email protected].

W6LVP amplified receive-only magnetic loop antenna (boy is that mouthful):

  • The W6LVP mag loop is a complete receive antenna system delivering top-of-the-line performance to amateur radio operators and SWLs – particularly for those with space and/or budget limitations.  It is a great complement to vertical or wire transmit antennas.   You have a knob to turn up the power but don’t have one to turn up the received S/N.
  • Ten foot circumference (approximately 1 meter diameter) loop.  Small size yields a natural stealth for HOA challenges.  The loop is rigid enough to maintain its shape but flexible for portable transport or attic installation.
  • Includes a low-noise, broadband amplifier covering 2200 (135 kHz)  through 10 meters (30 MHz) with no tuning or adjustment.  Perfect match for continuous tuning SDR receivers.  Great for contesters to quickly check all bands.  Greater coverage is possible at reduced performance.
  • Light-weight antenna structure fabricated from furniture-grade PVC yields a strong but very light antenna weighing only 2 pounds (not including power inserter or power adapter).  Great for both portable/camping as well as fixed installations.  Light weight and small size make for lower shipping cost – particularly compared to shipping from the UK.
  • Directly compatible with a low-cost speaker tripod stand (not included) for portable operation.
  • Compatible with light-duty rotator (recommended) for fixed operation.  Loop can be rotated to null interference by up to 30 dB or enhance desired signals.
  • Includes low-noise linear AC power adapter to generate clean 12 volts for the loop amplifier.  Unlike the DX Engineering antenna which requires 24 VAC, power can be easily supplied by 12 volt batteries during portable operation.  Reverse polarity and short circuit protection provided by automatically resettable fuse.

Eham reviews are very positive–so far, 5 stars on all six reviews.

I also discovered this short video of W9OY comparing the W6LVP loop to a full size 80 meter vertical (verticals are much more susceptible to noise than loops):

Click here to view on YouTube.

I am very curious if any SWLing Post readers have ever compared the W6LVP loop to the Wellbrook or Pixel Loop antennas.

I actually own the Pixel Loop and might very well purchase, review and compare the W6LVP loop later this year (if time allows).

If you own the W6LVP loop and/or have compared it with the Pixel or Wellbrook, please comment!

Click here to view W6LVP antennas on eBay.

Click here to view the W6LVP website.

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VORW Radio International expands with shortwave broadcast to Australia

Many thanks to SWLing Post contributor, John from VORW Radio International, who writes:

My weekly radio show “VORW Radio International” has now expanded with additional transmissions to Europe and even a transmission to Australia!

Each broadcast features a mixture of my commentary and listener requested music. You’ll hear a great variety of music in this program, from Classical to Classic Country, from Rock to Smooth Jazz, you’ll hear it all!

If you’re interested in listening, the updated broadcast schedule is as follows:

  • Thursday 1300 UTC – 1400 UTC – 6070 kHz to Europe
  • Thursday 2000 UTC – 2100 UTC – 6070 kHz to Europe
  • Friday 0100 UTC – 0200 UTC – 7490 kHz to North America (8 PM – 9 PM Eastern, Thursday)
  • Friday 1130 UTC – 1230 UTC – 3210 kHz to Northwest NSW, Australia

Questions, comments, reception reports and music requests may be sent to [email protected]

Reception reports will receive a QSL!

Very cool and bravo for expanding your broadcasts, John!

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CKZU unlikely to return to shortwave

Many thanks to SWLing Post contributor, Dave Zantow, who writes:

From DXLD today in case you missed it . Well at least CKZN St. Johns [also on 6160 @ 1kw] is still on (last I checked) , the one I can hear at my QTH.

***************************************************
Bad news re: CKZU 6160 Khz

Volodya S

Fellas, from an insider at the CBC. Unfortunately, it doesn’t look good for CKZU ever returning to the air. 🙁 Thanks to Colin Newell for digging into this further.

Walt Salmaniw, Victoiria, BC

Got the answer.. not gonna like it.
Basically, it broke and they don’t have parts to fix it because it’s too old and no parts available. The money required to purchase a new transmitter doesn’t make sense because of the low numbers of people who use it (changing world, everything’s online, blah blah). Before you say it, yes I know, I know.

Anyway, there is no other way to voice your displeasure than the 1-866-306-4636 audience relations number. If enough people call, they might notice, but I doubt it.

Sorry to be the bad news messenger. I kinda figured that was the deal of why it was off the air.

This is sad news indeed for those who enjoyed CKZU. What amazes me, is how a 500 watt shortwave relay covered such a large broadcast footprint in British Columbia and western North America.

On that note, I just discovered this post by Colin Newell (referenced above) on his blog, the Coffee Crew Blog. Colin mentions when he started listening to CKZU and what it meant to him. Check out his post.

CKZU was a reasonably tough catch here on the east coast of the US–especially due to CKZN who shared the frequency–though I’ve heard them numerous times. Indeed, this will prompt me to go back a few years in my SDR spectrum archive recordings and tune them in once again–sort of a postmortem DX–? I’m sure I’ve captured them.

As Dave mentions above, CKZN St. Johns is still on the air and, perhaps, listeners on the west coast will have a better chance snagging their 1 kW signal now. According to an article about CKZN in the latest WRTH, the station should be around for many years to come.

Thanks again, Dave, for the tip and many thanks to Colin for the research.

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New RX7300 adds receive-only antenna port to Icom IC-7300

(Source: Southgate ARC)

New receive antenna socket for IC 7300

IHSG and Vibroplex/INRAD announce the release of a new accessory product for the Icom IC-7300 which provides a receive antenna socket on the rear of the radio.

The INRAD model RX7300 allows the user to add a receive-only antenna jack to the Icom IC-7300. This easy to install plug-in modification requires no soldering and is simple to install and easily reversible. The RX7300 can also be used for the insertion of accessory items into the receiver chain on the IC-7300 like receive-only bandpass filters, low noise preamps, etc.

When installed, the transceiver will use the SO-239 antenna connector on transmit, and one RCA phono jack on the RX7300 for receive. To use the transceiver in normal operation via the SO239, leave the RG-174 coax loop installed between the 2 phono sockets.

The RX7300 retails for £49.95 or £99.95 fitted and is only available through HIS group affiliated stores. Customers who purchased their IC-7300s via an IHSG store will receive a £5.00 discount from the supply only price and £15.00 discount from the installed price.

For more information contact [email protected]

www.nevadaradio.co.uk
www.hamradiostore.co.uk
www.inrad.net

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Special Test Broadcast of FTIOM on Spaceline

On Sunday, February 26 at 1500-1600 UTC, Spaceline will be doing a test transmission on 9400 KHz  from Kostinbrod, Bulgaria using an episode of From the Isle of Music,   a program dedicated to the music of Cuba which is heard weekly on WBCQ and Channel 292.    This transmission will be aimed primarily at Russia and Ukraine but may be audible in other areas.    (From the Isle of Music will continue on WBCQ and Channel 292 for their target areas regardless of the results of this and a subsequent test. )
If you monitor this broadcast, reception reports can be sent to
1.  Spaceline at   [email protected]
2.  From the Isle of Music at  [email protected]

From the Isle of Music in particular would be grateful for any reception reports from the test, especially from the Balkans, Ukraine, Russia, Turkey etc,  and will respond with an eQSL.

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North American Shortwave DX Contest Results

Many thanks to SWLing Post contributor, John Cooper, who writes:

Greetings fellow DXers and SWLers.

The North American Shortwave DX Contest, “The Final Countdown,” has come to a close. Participation expectations were high with 50 requests for Contest form packets being received and sent out to prospective contestants.

The actual contest participation in the contest was another matter with only 10 contestants completing out of 13 competing which equaled out to a final 20% participation rate in the contest. 3 contestants dropped out, 1 due to a personal issue, 2 equipment failures due to blizzard conditions in Utah destroying a rooftop antenna, and 1 SW receiver failure.

The question I have is why the lack of actual participation? Was the contest to hard? Or as I have the sinking gut feeling, the Shortwave hobby truly is dying a slow painful death? Thus the contest name “The Final Countdown,” sounds prophetic.

Although Propagation conditions were lousy during the 21 days. of January the contest was held on, there were several days of good DX openings as I participated as an observer, and was able to score high. I would have personally placed in the top 5 if officially entering.

There were 3 great prizes donated by Universal Radio Inc., for the top three finishers, and they were a main sponsor along with NASWA who donated several months of Journal space for the contest packet forms and CIDX who also published the contest forms packet in their excellent monthly electronic newsletter. These are the largest Shortwave Clubs/Associations in North America. Additionally I want to thank Thomas Witherspoon for posting several announcements, reminders, and contest form packets on the SWLing Post, one of my favorite sites for radio information.

The bottom line is those that did participate stated they enjoyed themselves and in some cases the joy of SWLing and DXing were rekindled again after many years of inactivity. That’s a good sign!

73

John P. Cooper
Contest Manager
“The Final Countdown”

Click here to download the The North American Shortwave DX Contest score sheet (PDF).

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