Category Archives: Guest Posts

XRPT and trains on the shortwave tracks

Hello all shortwave listeners and SWLing Post community, FastRadioBurst 23 here with news of the Imaginary Stations radio shows this week. This Sunday October 20th 2024 there’s a new show called XRPT. We are not going to give much away about it but look forward to a non-linear journey into the creative process of the Skybird crew”. This show is brought to you via the services of Shortwave Gold at 0900/1300 hrs UTC on 6160 kHz and then at 2000 UTC on 6160 kHz and 3975 kHz.

Then on Wednesday October 23rd 2024 at 0200 UTC on 9395 kHz there’s CTRN 5 via WRMI for all lovers of railroads and trains. Tune in for a mixture of locomotive and electric train classics for all train crew, station staff and passengers to enjoy. Stand clear of the doors please.

For more information on all our shows, please send  to imaginarystations@gmail.com and check out our old shows at our Mixcloud page here.

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From the Archives: When the fertilizer hits the fan radio kit

By Jock Elliott, KB2GOM

Murphy’s Law: If anything can go wrong, it will.

            1st corollary: Even if anything can’t go wrong, it still will.

            2nd corollary: It will go wrong in the worst possible place at the worst possible time.

            Most devastating corollary: Murphy was an optimist.

            “It’s tough to make predictions, especially about the future.” – Yogi Berra

 The Better Half thinks I am sick, and maybe she is right, but I am unrepentant: I like disaster movies and books. True stories are better than fiction, but I like both, and I am curious about how people, real or imagined, get through whatever Horrible Event faces them.

As I have written before–here, here, and here–that when bad stuff happens, radio can be a really useful tool.

It was a comment from a reader – Rob, W4ZNG – that got me thinking some more about this. He mentioned enduring three weeks without electricity on the Mississippi Gulf Coast as a result of Katrina. So we had a phone conversation about: What do you want in your radio kit bag when faced with a longer duration, more severe regional or national emergency?

Here’s some of the stuff we agreed upon.

Gathering Information

At the most basic level, you want a radio capable of receiving local AM or FM broadcasters, and it would be good to know ahead of time which local stations have local news staffs that can broadcast useful in formation in times of crisis. In addition, if you live in the US or Canada, I absolutely recommend the ability to receive NOAA weather radio. The ability to run off batteries is critical, in case the mains power is out. In addition, a generous supply of batteries, or a means to recharge batteries is in order. If you decide to go with recharging batteries, you need to think about your options now, not when the lights go out.

In Rob’s case, during Katrina, all of the local broadcasters were wiped out. There was a local low-power FM broadcaster who got permission to increase power to 1,000 watts and was broadcasting where to get food and water. There was a New Orleans AM station that was on the air, but all of its coverage was “New Orleans-centric.” After a few days, some local FM broadcaster, working together, cobbled together a station that they put on the air and began broadcasting news. Rob also began DXing AM stations at night to get additional news.

We agreed that shortwave broadcasters were not likely to be very useful in most cases, but a shortwave radio with the ability to hear ham radio single sideband networks might well be.

To scan, or not to scan, that is the question

Another potential source of information are local public agency radio transmissions in the VHF and UHF ranges that could be heard with a scanner. But – and this is a very big but – that depends a lot on whether your local government (first responders, etc.) transmissions are encrypted. You need to check a source like https://www.radioreference.com/db/ to see if Public Safety transmissions in your area are encrypted. If they are, you will be unable to decipher them, no matter what equipment you own. However, an inexpensive analog-only scanner may prove very useful for listening to ham transmissions VHF and UHF (2 meters and 440 primarily) as well as FRS and GMRS.

If your local Public Safety radio systems are not encrypted, the RR database will give the details of the radio systems used by those agencies, and that in turn will determine the level of sophistication of scanner that will be required to hear their transmission.

The Radio Reference database also includes a listing of national radio frequencies including a list of federal disaster frequencies such as might be used by FEMA. In addition, I have found that the folks at the Radio Reference forum are generous with their time and expertise: https://forums.radioreference.com/ . If all this sounds a bit daunting, there are scanners that have built-in databases of all available frequencies and radio systems, and all you need to do is put in your zip code and select which services you want to hear. I own one, they work well, but they are expensive.

Summoning Help

Assuming that the power is out, your cell phone may or may not work (during Hurricane Katrina, some people found that they could not make voice phone calls, but text messages would go through).

If the cell phones are not working, two-way radio may be useful to summon help and gather information. Again, some research on your part is in order. Perhaps there are 2-meter or 440 ham repeaters in your area with backup power, or maybe there is a robust GMRS repeater system. If so, get your ham or GMRS license and start participating! (It was his experience during Hurricane Katrina that prompted Rob to get his ham license, and when Hurricane Zeta hit, he was glad he had it.)

FRS bubble-pack radios are good for staying in touch while getting around the immediate neighborhood.  It’s also good to have a few spares to hand to neighbors if the need arises.  Often on sale (especially after Christmas) in multi-packs for less than $10 each.

Rob notes that great strides have been made in hardening cell phone towers since Katrina.  When Hurricane Harvey clobbered Houston in 2017, the cell net stayed up.  Even so, it would be prudent not to count on it!

The Bottom Line

At a bare minimum the ability to receive your local AM and FM broadcasters is essential, and NOAA weather radio is also very useful. At the next step up, depending upon your local situation, a scanner may help you to gather information. In addition, the ability to monitor ham transmissions may also add to your information gathering abilities. Finally, having a ham license and the ability to transmit on ham frequencies may be very valuable in a widespread or long-duration emergency.

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Libraries on the air on shortwave

Hello all shortwave listeners and SWLing Post community, FastRadioBurst 23 here with news of the Imaginary Stations radio shows this week. This Sunday October 13th 2024 there’s the return of The Shortwave Music Library with chief music librarian DJ Frederick behind the desk picking out some eclectic tunes from his record collection. Expect all sorts of musical goodies from across all genres. This show is brought to you via the services of Shortwave Gold at 0900/1300 hrs UTC on 6160 kHz and then at 2000 UTC on 6160 kHz and 3975 kHz.

Then on Wednesday October 16th 2024 at 0200 UTC on 9395 kHz there’s Part 2 of Skybird Radio International (Instrumental Version) via WRMI for your listening pleasure. More musical flavours with no vocals from various countries of the world.

We are looking for some financial help to cover our production and transmission costs for our shows on shortwave so here’s our fundraising video below. We’d love to keep our show on the air well into the new year and we are looking for donations (no matter how small as everything helps) to keep our eclectic shows bouncing off that ionosphere. Remember, radio connects us all!

For more information on all our shows, please send  to imaginarystations@gmail.com and check out our old shows at our Mixcloud page here.

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Extra imagination on shortwave this Sunday

Hello all shortwave listeners and SWLing community, FastRadioBurst 23 here again with news of an extra transmisson this Sunday October 6th 2024. It’s a rerun of the Skybird Radio International (Instrumental special) on Shortwave Gold at 1800 hrs UTC on 3975 kHz and 6160 kHz. It’s all about the instrumental worldwide flavours so tune in if you missed it last week and you’re more than welcome to WSTL along of course!

For more information on all our shows, please send  to imaginarystations@gmail.com and check out our shows at our Mixcloud page here.

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KMRT back on those airwaves of ours

Hello all shortwave listeners and SWLing community. FastRadioBurst 23 here with news of the Imaginary Stations radio shows this week. This Sunday October 6th 2024 there’s a return to the supermarket shelves with KMRT via the services of Shortwave Gold at 0900/1300 hrs UTC on 6160 kHz and then at 2000 UTC on 6160 kHz and 3975 kHz (night shelf stackers workload permitting).

Plus on Wednesday October 9th 2024 at 0200 UTC on 9395 kHz we’ve another episode of KMRT via WRMI for your listening pleasure.

Both these programmes are part of the Supermarkets on Shortwave 2024 broadcasts. Expect nearing their sell by date and marked down classics, a heart warming song from The KMRT Trainee Managers Choir called “The customer is always right”, some shopping trolley sing-a-longs, a look at supermarket radio from around the world and a roving reporter hidden in a stack of Teddy Bears ready to jump out at a unsuspecting member of the public (*subject to availability and while stocks last of course). Here’s our trailer, happy shopping!

We are looking for some financial help to cover our production and transmission costs for our shows on shortwave so here’s our fundraising video below. We’d love to keep our show on the air well into the new year and we are looking for donations (no matter how small as everything helps) to keep our eclectic shows bouncing off that ionosphere. Remember, radio connects us all!

For more information on all our shows, please send  to imaginarystations@gmail.com and check out our old shows at our Mixcloud page here.

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Putting instrumentals on the map

FastRadioBurst 23 here with news of the Imaginary Stations radio shows this week. This Sunday 29th September 2024 there’s an instrumental episode of Skybird Radio International via the services of Shortwave Gold at 0900/1300 hrs UTC on 6160 kHz and then at 2000 UTC on 6160 kHz and 3975 kHz.

As with the last shows, they’re of an worldwide flavour but the musical selection will have a lot less vocals in this episode. Tune in and you’re welcome to add the singing bits yourself.

The on Wednesday October 2nd 2024 at 0200 UTC on 9395 kHz we have the return of WDWD – Off the Map Radio via WRMI. It’s as they say “an audio journey in the wrong direction to the wrong destination” but wherever we end up, they’ll be tunes mentioning place names, locations, compass points and maps.

We now have a Patreon page for our regular listeners here. Monthly memberships are available for exclusive audio and zines.

For more information on all our shows, please send  to imaginarystations@gmail.com and check out our old shows at our Mixcloud page here.

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Bob talks ergonomics and radio buttons…

XHDATA D-808 on a 5” × 9” neoprene pad.

Ergonomics and Radio Buttons

By Bob Colegrove

Am I being too picky?  Are the buttons on some newer portable radios hard to press?  I’ve read many reviews and watched as many videos, but haven’t encountered many complaints about this.  Perhaps it’s an age-related affliction.

The most succinct description of the problem was expressed in the review of the Tecsun PL-660 way back in the 2012 edition of the WRTH.  In referring to the buttons, “All are in our view rather too small for comfort and have breakout forces which are out of all proportion to their size; the combination of this with excessively long travel and weak tactile feedback does not give much pleasure to the user.”  The problem has only gotten worse with some newer portable radios.

I see two problems here.  First, too much pressure is required; what the WRTH called “breakout force.”  Designers may say, “that’s so you won’t accidentally turn the radio on and run down the battery.”  Well, I reply, “isn’t that what the ubiquitous lock button is for?  They all have one.”

If you’ve ever taken one of these radios apart, you’ve likely seen a pliable membrane between the buttons and the switches or traces on the PC board.  This provides some spring action necessary to return the buttons to the upright position.  Couldn’t this be thinner or more elastic?

Second, some radios have flat buttons that don’t protrude very far above the case.  By the time the fleshy part of your finger bottoms out on the surface of the case, still more pressure and button travel is required to activate the function.  Couldn’t the buttons be slightly higher?

The result, if you operate the radio on a desk or table and apply the requisite walnut-cracking pressure on a button, the radio might well rocket off its foundation.

Pads for Portables

A partial solution without violating the integrity of the radio is a stable foundation.  In today’s euphemistic world the term counterpoise is use when referring to what we used to simply call an electrical ground.  It seems some sort of mechanical counterpoise would be useful to better anchor a portable radio for operation.

Neoprene is a synthetic rubber developed by a DuPont scientist in 1930.  It is tougher than natural rubber and relatively impervious to solvents.  This stuff is virtually skidproof.  There are perhaps other materials suitable for this application, which is simply to get the radio to stand its ground while you operate it.  After some thought and experimentation, I bought a 1/16”-thick neoprene pad.  A 12” × 12” pad is more than enough.  Mine came from https://amzn.to/3XsmQDe [Note Affiliate link supports the SWLing Post].  I cut this into three smaller pads as follows:

7” × 12” for a Sony ICF-2010, which has nice easy-touch buttons and really doesn’t need a pad except to anchor the radio in place.

5” × 9” for a Tecsun PL-990 and many other similar size radios.

3” × 5”, the scrap piece can be used for a C.Crane Skywave, which already has nice raised buttons;  a Tecsun PL-330, which needs a pad most of all; and an XHDATA D-220, which doesn’t even have buttons.

A Tecsun PL-330 lying flat covers a 3” × 5” pad.  But that’s OK.

There are a couple of alternatives:

  1. You can leave a large pad uncut to accommodate various sizes of radios; or
  2. You can cut bits of neoprene and apply them as feet to the bottom rear corners of the radio and bottom of the stand.  There might be some difficulty getting them to stay in place or allowing the stand to fully collapse.  Some portables already have rubber feet.

It’s probably apparent that neoprene will adhere best to a smooth surface such as glass or Formica.  However, I have tested it on a cloth-covered, memory foam chair cushion, and it works just fine.  Pressing down the material will make it adhere to a surface even more.  I would estimate that a lateral force of at least 10 or 15 pounds is required to make a small radio break loose from three or four points of contact with the material.

Besides holding the radio in place while you operate it, much like a large table radio, neoprene offers the radio some cosmetic protection against abrasion from rough surfaces.  However, the material is so sticky it will pick up every bit of dust or dirt.  This can somewhat compromise its adherence requiring an occasional rinse in water.

Admittedly, the neoprene pad isn’t going to be very useful while you’re sitting in a beach chair using the radio in the handheld posture.  However, in the shack, a suitable pad has a purpose.

XHDATA D-220 sans buttons on a 3” × 5” pad.

Caps for Buttons

In the case of buttons which are too low, some additional help is desired.  On the Tecsun PL-330, I glued plastic caps on top of the STEP and ETM buttons, which raises them about 1/16” and helps considerably.  I am still looking for some transparent material to use as caps on the numbered buttons.

STEP and ETM buttons with caps on a Tecsun PL-330.

Further validated suggestions are solicited.

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