Monthly Archives: August 2024

A Band Aid for the XHDATA D-220

Many thanks to SWLing Post contributor, Bob Colegrove, who shares the following guest post:


A Band Aid for the XHDATA D-220

By Bob Colegrove

In the olden days of analog radios, we would have generated a graph plotting frequency against a 0 to 100 linear bandspread scale. That permitted determination of a station’s frequency with varying degrees of accuracy.

The case of the charming little D-220 requires a simpler approach. The dial covers 5.6 MHz to 22 MHz in less than two inches. They could have cut off coverage at 18 MHz and gained a precious half inch of dial.

With the shortwave scale well below the pointer, I needed some additional guidance indicating where I was. Best not to get too fancy. I cut a strip off a sticky-back label and attached it to the dial right below the pointer. Using the left edge of the pointer as a guide, I marked off the location of each international broadcast band and a couple time stations. The width of each band isn’t much more than the point of a sharp No. 2 pencil. Any further resolution is hopeless, but at least you know what part of the spectrum you are in.

Red lettering is not part of the band aid.

Again, going by the old logarithmic analog dials you would expect the frequencies to be increasingly mashed together as you go higher. This is not the case with the D-220, nor do the increments appear to be very linear. At any rate, it is now relatively easy to tune from band to band.

The sensitivity and clarity of the D-220 is amazing. Perhaps it’s the green one.

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Carlos’ Shortwave Art and recording of Adventist World Radio (August 7, 2024)

Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent AWR broadcast.


Carlos notes:

Part of Adventist World Radio evangelist preaching in Yoruba language to Nigeria and region, broadcasted from Nauen, Germany. Listened in Florianopolis, Brazil.

Click here to view on YouTube.

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Texas Radio Shortwave Test Broadcast: August 11, 2024

Many thanks to Texas Radio Shortwave who shares the following announcement:

Because propagation was terrible on August 5th, we’re again testing on 9670 kHz next Sunday, August 11, at 0300 UTC. The test will come from Channel 292 in Rohrbach, Germany.

We’ll issue Texas Coloring Book QSL #7 for correct, detailed reception reports to [email protected].

73.

Texas Radio Shortwave
Returning to our roots on Channel 292

www.facebook.com/texasradiosw
www.channel292.de

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Aaron Explores: Why a Dedicated Radio Enhances the Live Baseball Experience

Many thanks to SWLing Post contributor, Aaron Kuhn, who shares the following guest post:


Live Baseball on the Radio: Radio Selection Considerations

The authors own Sangean Portable + AirPod Pros + a Bluetooth Transmitter rubber banded to the radio back, Coca Cola Park – Allentown, PA

In recent years, I’ve enjoyed attending minor league baseball games in my region. One of my favorite aspects of live baseball is bringing a radio to listen to play-by-play commentary. Experiencing the game in person while hearing the commentary in my ear offers the best of both worlds.

Over the years, I’ve brought various portable and ultra-portable radios to games, and I’ve realized that certain criteria make for a good “Live Baseball Radio.” Whether it’s form factor, size, or features, a live sporting event presents specific considerations and trade-offs for the radio you choose to bring.

“I’ll just stream the game on my phone”

While there are many options for internet streaming on a smartphone, like the free game audio feeds from MiLB.com, streaming game audio on a smartphone is not ideal for live baseball due to one major issue: latency.

Ideally, you want the action you see to match as closely as possible with the play-by-play you hear. With internet streaming, you’re subject to internet latency and buffering, leading to audio delays that you cannot fix. This makes streaming better for listening to games from afar, but not for live baseball.

Selecting the Ideal Radio

Picking a radio to bring to a game involves considerations that become obvious only after you’ve tried it a few times. Hopefully you can learn from my past mistakes and be more informed.

AM, FM, or AM/FM?

There are no fixed rules about the frequency’s baseball teams use for broadcasting. Some teams are on AM radio, some on FM, and some simulcast on both. Some teams don’t broadcast on free-to-air radio at all, opting for streaming-only solutions. Choosing a radio that receives both AM and FM is your best bet to ensure you can use it at different stadiums.

Many ultra-portable “pocket” radios support only FM, which might leave you without audio if your local team is on AM. Conversely, vintage pocket transistor radios might leave you stuck with AM-only signal receiving capability, missing the FM signal.

Amazon Product Listing Photo for “ZHIWHIS” Ultra-Portable

Vintage RCA Transistor Radio, Photo by Joe Haupt – https://www.flickr.com/photos/51764518@N02/49435844673/

HD Radio

The Author’s recent ill-fated radio choice for a live game

While HD Radio seems like a great idea for live baseball, the HD signal suffers from similar issues as streaming a game: latency

I recently picked up an ultra-portable FM HD Radio for a great deal secondhand, only to take it to the ballpark and realize the HD Signal was delayed by nearly 20 seconds. Worse yet – the radio offered no way to turn off the HD signal and revert to analog! The radio was unusable for watching the game as play-by-play in my ear was nearly four pitches behind what I was seeing live.

If you choose a radio with HD Radio features for the ballpark, check the broadcast delay on the HD signal before the game, and ensure you can turn off the HD Radio features if necessary.

Radio Size and Antenna Considerations

Any radio can be portable if you try hard enough, but space is often limited at live sporting events. Stadium seating varies at some ballparks, you can spread out a blanket on a hillside, sit at a picnic table, or even watch the game from a pool (better check that IPX rating!). However, you’ll likely be using your radio while seated in your ticketed seat. Some stadiums offer spacious, modern seating, while older stadiums may have small, cramped seating.

Antennas on radios are another consideration. In cramped stadium seating, you may not have the luxury to fully extend the antenna for the best signal without poking the person in front of you or next to you. You might want to consider a radio without an external antenna, such as one like the Retekess V112, which uses the headphone cable as the antenna. You may also need to stand up and sit down repeatedly to let people through the aisle rows to their own seats, which is where going “antenna-less” can be useful.

Retekess Product Image for V112 Model

While a headphone-wire antenna setup may be a perceived undesirable feature for dedicated radio hobbyists, pocketability and ease of use in a crowd can be beneficial at a crowded game. Many stadiums are moving towards bag restrictions or not allowing bags at all, making the proposition of transporting even a modest-sized portable radio to a game a chore. A pocket-sized radio you can stick on a lanyard, wear into the park, or stick in a pocket may be the difference between being annoyed all game carrying around a radio, or just enjoying it.

On the flip side, if you plan on pairing your radio with a Bluetooth transmitter to use Bluetooth earbuds or headphones, you may want to select a radio with an antenna. The short cable run on many Bluetooth transmitters may not provide adequate reception for units that use connected headphones as the antenna.

Speaker or No Speaker

If you’re not using the radio for tailgating, consider whether you need a speaker on the radio. Many pocket radios omit a speaker to reduce weight and cost. If you need to unplug your headphones during the game, it might be better to avoid a speaker that could blast game audio accidentally and disrupt your neighbors. Ditching the speaker is also likely to save weight and battery life.

Cost Considerations and Final Thoughts

Choosing the right radio for live baseball involves considering factors like frequency options, latency issues, size, portability, and whether you need a speaker.

Everyone’s finances and purchasing abilities differ, but there are many adequate radio options available for under $20 USD that check a lot of these boxes, making it possible to have a dedicated radio for live sports without spending a lot of money. As radio hobbyists, we sometimes want the best for our listening experiences, but taking an expensive radio to a live sporting event can be risky due to cramped quarters, constant movement, and the potential for spills or accidents.

In my opinion, it’s better to enjoy the game with a “lesser radio” than to spend the entire game worry about damaging an expensive radio. After all, cleaning mustard out of your expensive radio’s speaker grill is not fun post-game entertainment. Focus on enjoying the day and the live sporting experience while enhancing it with the wonder of live ballpark radio – no matter what you bring along.

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Carlos’ Shortwave Art and recording of NHK (August 8, 2024)

Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of a recent NHK World broadcast.


Carlos notes:

Part of Thursday’s NHK radio news bulletin about 7.1 earthquake that hit Miyazaki Prefecture, Japan. Listened in Florianopolis, Brazil.

Click here to view on YouTube.

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Radio Waves: Radio Apocalypse, SDRs, and Updated StarWaves DRM App

Icom IC-756 Pro Transceiver Dial

Radio Waves:  Stories Making Waves in the World of Radio

Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors Dennis Dura, and Alan for the following tips:


Radio Apocalypse: HFGCS, The Backup Plan For Doomsday (Hackaday)

To the extent that you have an opinion on something like high-frequency (HF) radio, you probably associate it with amateur radio operators, hunched over their gear late at night as they try to make contact with a random stranger across the globe to talk about the fact that they’re both doing the same thing at the same time. In a world where you can reach out to almost anyone else in an instant using flashy apps on the Internet, HF radio’s reputation as somewhat old and fuddy is well-earned.

Like the general population, modern militaries have largely switched to digital networks and satellite links, using them to coordinate and command their strategic forces on a global level. But while military nets are designed to be resilient to attack, there’s only so much damage they can absorb before becoming degraded to the point of uselessness. A backup plan makes good military sense, and the properties of radio waves between 3 MHz and 30 MHz, especially the ability to bounce off the ionosphere, make HF radio a perfect fit. [Continue reading…]

SDR: The Next Level of Shortwave Radio Listening (Radio World)

Where have these things been all my life?

There is a new breed of RF receivers known as software-defined radios, and they are revolutionizing the way in which people listen to shortwave (SW) radio, or indeed any form of radio broadcast.

SDRs combine plug-in radio receiver dongles/boxes with personal computers, with the computer serving as the user interface. What makes this interface so useful is that the listener’s screen displays a wide swath of the bandwidth being tuned to, with each station’s signal shown as a visual vertical line that moves and grows/shrinks with its signal strength.

In other words, the listener can literally see what is happening across the band in real time, rather than having to turn the dial or push the Up/Down scanning buttons on a conventional shortwave radio, checking one station at a time. [Continue reading…]

New App Update: RTL-SDR V4 and HackRF Support! (StarWaves)

Long Awaited and Finally Released – RTL-SDR V4 Support!

Today the new Release 1.5.1 of STARWAVES DRM SoftRadio App has been released. The following improvements can be expected:

– Added audio output device selector in settings (cog wheel icon) / audio tab,
starting with Android 12:
default, Earpiece, Speaker, Headphones, Bluetooth, HDMI, USB
– Added support for “RTL-SDR Blog V4” Receiver Dongle (all bands)
– Added support for “HackRF” Receiver Dongle (all bands)
– Improved robustness after signal loss or reconfiguration
– Improved sync status display in tuning dialog
– Unknown image formats no longer opened in external web browser window
– Updated decoder modules

Click here for more info.


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Carlos’ Shortwave Art and Recordings of Furusato No Kaze & Nippon No Kaze il bon ue broadcasts

Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of these Furusato No Kaze and Nippon No Kaze il bon ue broadcasts:

Carlos notes:

Opening of Japanese government shortwave radio programs aimed at Japanese citizens abducted by DPRK between 1977 and 1983: “Furusato No Kaze” (in Japanese) and “Nippon No Kaze il bon ue” (in Korean). Broadcasted from a transmitter in Tashkent, Uzbekistan, and listened in Florianopolis, Brazil.

Furusato No Kaze

Click here to listen on YouTube.

Nippon No Kaze il bon ue

Click here to listen on YouTube.

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