Yearly Archives: 2014

Alex updates shortwave frequency charts for summer season

AlexCharts

SWLing Post reader, Alex, has just informed me that he’s updated his printer-friendly shortwave frequency charts for the summer broadcasting season. Alex mentions that he posted English in Europe on one A4 sheet, plus 5 A4 sheets running through the vast majority of stations that can now be heard in Europe.

Note that Alex creates his charts based on listening to broadcasters rather than importing schedules from other sources.

You can download the free charts on his website:
Shortwavetimes.com

Many thanks, Alex!

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Last day of the 2014 Hamvention

Morning on Wright Patterson Air Force Base
Today is the the final day of the 2014 Dayton Hamvention. For exhibitors, it’s the slowest day of the weekend (Saturday is the busiest).

My voice is hoarse from speaking with so many people–it’s been great! Many thanks to the SWLing Post readers who stopped by our booth to talk radio.

This morning, I’m listening Pacific Break on Radio Australia with my buddy Eric McFadden while we eat breakfast and prepare to leave. I started listening to RA on my Tecsun PL-310ET and Eric (of course) brought out his Sony ICF-SW7600G and AN-LP1 for comparison. A little radio fun before the craziness yet to come.

Sony ICF-SW7600G and Tecsun PL-310ET

We’re not staying in a hotel this year, and we have much quieter conditions for SWLing. Eric, as a I mentioned in a previous post, is retired from the Ohio Air National Guard; this year, he was fortunate enough to secure us a “TLF” (Temporary Lodging, Family) on Wright Patterson Air Force Base. Our TLF is a three bedroom, 2.5 bathroom house with a living room, laundry room, outdoor patio, yard and is surrounded by acres of green space. It’s about half the price of a local hotel, so we feel most grateful! Better yet, a TLF is like being at home: we can string up antennas indoors or outside and play radio.

photo 2

Eric eating cereal and doing an informal A/B comparison. The AN-LP1 is attached to the dining room window.

Many thanks to Eric (WD8RIF) and his son, Miles (KD8KNC), for being such dedicated ETOW volunteers.

As I head out this morning, I thought I’d post a few more photos I took yesterday:

photo 1 (1)

Though I wouldn’t have a clue how to operate this Collins 10B (above), I would love for it to adorn my radio table.
photo 2 (1) photo 3 photo 4 photo 5

I’ve also taken photos of new products vendors displayed at the Hamvention. I plan to post them after returning home later this week.

If you’re visiting the Hamvention today, please stop by Booth BA411 and introduce yourself!

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Dayton Hamvention flea market: a few photos

I had a little over one hour to check out the Dayton Hamvention flea market yesterday morning before manning our inside exhibitor’s table for Ears To Our World.

Here are a few radios that caught my attention:
CollinsRadios

Hallicrafters-SX-24I actually purchased the Hallicrafters SX-24 in this photo (above) for $60. I would have purchased the speaker as well but he wanted $200 (!!!) for it.

Hallicrafters-SX-42 Hallicrafters-SX28 Hammarlund-HQ145ABy the time I made it back to this Hammarlund HQ 145 A, someone else had already snagged it. It was a beauty!

Panasonic-RF-4800 Philips Racal-RA6790GMI probably saw eight of these RA6790/GM’s scattered throughout the flea market.

Signal-Corps-BC-1308 Zenith

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Going to the Dayton Hamvention? Stop by our booth!

Dayton Hamvention logo_2For the third year in a row at the Dayton Hamvention, fellow volunteers and I will be representing the charity Ears To Our World (ETOW).

This year, we will be in booth 411 in the Ball Arena (BA0411). Stop by and introduce yourself! Here’s a map.

Look forward to meeting you there!

-Thomas (K4SWL)

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Ken points out where Melson series derived design

Melson and Grundig Satellit 500

The knobs on the left side of the Melson M7 and S8 are fake.

SWLing Post reader, Ken, commented that the “faux” knobs on the Melson S8 were derived from the Grundig Satellit 500.

Ken has taken a photo of the two radios together (above).

Note that the knobs on the left side of the Melson S8 are fake (right).

Read the Melson S8 review, posted yesterday, by clicking here.

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A review of the Melson S8 shortwave radio

Melson-S8-v1The radio manufacturer, Melson, caught my attention a couple of years ago when it released the Melson M7–an AM/FM radio with a built-in MicroSD MP3 player. It wasn’t that an AM/FM/MP3 combo radio was that unique or novel, rather, what impressed me most was that the M7 delivered unexpectedly robust audio from its built-in speaker. I purchased an M7 last year and found that the little portable could easily fill the average-sized room with clear, rich audio, a truly superlative feature.

Other than its audio, however, the radio was fairly standard. My Melson M7 had good AM (medium wave) and FM sensitivity–well, at least on par with most other DSP portables in its price range. While the built-in MP3 player was basic, it was simple to use and functional. I loaded it with a MicroSD card filled with music and recordings, and put it to use as a mini-juke box of sorts. I didn’t expect more from that radio, or from its line.

Introducing the Melson S8

Melson-S8-1

The Melson S8 sports the same “faux knobs” of the Melson M7

But when I discovered that the newest portable in the Melson line, the Melson S8, could receive shortwave radio, I ordered one immediately. This time, I didn’t have the radio in mind for personal use; I hoped it might serve our non-profit, Ears To Our World. At ETOW, we take information-delivery devices into parts of the world that currently lack access to the Internet. Shortwave radio is our usual medium, and most recently, we’ve put into service pre-recorded content loaded onto MicroSD cards–a simple way to give school children months of educational and musical programming. I had hoped the S8 might just support this need.

Overview

The Melson S8 resembles its sibling, the Melson M7, in every respect–down to the quirky “faux knobs” on the left side of the radio. Overall, the chassis feels sturdy and the buttons have a tactile response, with enough resistance to keep them from becoming accidentally pressed when, for example, the radio is packed in a suitcase. For shortwave and FM listening, the built-in antenna is rather short but sturdy.

Fortunately, the S8 also sports that amazing speaker found in the M7–a speaker that uses an acoustic chamber to achieve excellent audio. Since the S8 also has an AUX-in jack, it can be plugged into a laptop’s headphone jack, reinventing the S8 as an amplified portable speaker.

Melson-S8-v4

The S8 has a small digital display with backlighting that turns on or off depending upon the lighting level. For example, if it’s outside in the sun, the photosensor will turn off the blue backlighting.

The controls are on the right side of the radio: the tuning knob, volume control, power button, MicroSD card slot, DC power input (mini USB), headphone jack, and AUX-in.

Both the tuning and volume knobs work smoothly, but don’t feel quite as sturdy as I would like. I’m not sure how well they would hold up to years of daily use. When turning the tuning knob, the action is not seamless; you’ll detect slight incremental “bumps” or pauses that coincide with the receiver’s tuning steps on any given band. The volume control, however, is smooth, much as one would expect of a traditional analog radio.

The S8 utilizes the new slim rechargeable battery pack found in some Degen and Grundig models. While I’m not a great fan of these battery packs, they do seem to perform reasonably well and allow for a thinner radio.

Performance

Melson-S8-v2When you first power up the Melson S8, if you have a MicroSD card inserted, it defaults to the MP3 playback mode and will begin playing the first MP3 on your card. You must press the light grey MODE button to cycle through the bands. The order is as follows: MP3 -> FM -> AM/MW -> SW1 -> SW2. I find this a bit annoying, since I’m primarily interested in the shortwave bands, thus must cycle through all the other modes before arriving at my selection. When powering up, I do wish Melson permitted the radio to default to the last mode used, a standard practice among portables.

Like the Melson M7, the Melson S8 has good AM (medium wave) and excellent FM sensitivity. If these are the two bands you listen to most, then you will be pleased with the excellent audio the S8 will deliver via its built-in speaker.

On shortwave, however, I’m disappointed by this radio. Most of the DSP radios I’ve tested have reasonable shortwave sensitivity and selectivity; I had hoped for the same from the S8. Unfortunately, the S8 generates internal noise that pollutes shortwave listening. While the noise is present on most bands, I find that it’s most pronounced on the popular 31 meter band.

There is the possibility that this noise might be specific to my particular unit. I spoke with a friend who didn’t notice the noise on his S8, but he lives in an area with a lot of RFI, which may have obscured the unit noise. So while I recognize that this might be a defect in my radio, I’m not interested enough in the S8 to order another for comparison. However, I would be curious if any SWLing Post readers have noticed this, and welcome your observations.

So that you’ll understand what I’m talking about with regards to the noise floor of the S8 (or at least my unit), below I include two audio clips of my Melson S8 and Tecsun PL-380, respectively, tuned to Radio Australia:

The Tecsun PL-380 on 9,580 kHz:

The Melson S8 on 9,580 kHz:

Note that the static crashes you hear in the recording are not due to performance shortcomings of either radio, but due to regional storms on the date of my recordings.

Summary

I took the following review notes of the Melson S8 from the moment I first turned it on…

Pros

  • To prevent the unit from accidently being turned on, the S8 has a traditional key lock and one must press and hold the power button to power up or shut down
  • ATS Auto tuning
  • AUX in
  • Good AM/FM performance
  • Standard mini USB port for charging

Cons

  • Noise (chirp) every ten seconds in MP3 mode via headphones
  • Telescoping antenna swivel a little too loose
  • MP3 fast-forward imprecise–upon stopping, it jumps ahead ?3 minutes on long recordings
  • Pronounced muting between frequencies while tuning
  • Tuning speed slow, cumbersome, not adaptive; 5 kHz steps only on shortwave
  • Internally-generated noise throughout the shortwave bands, noticeable on all but blowtorch signals
  • Non-standard MHz display on shortwave bands
  • Controls often have sloppy responses; e.g., one fast-forward button press in MP3 mode can yield two skips forward. Tuning knob can have a similar response
  • Back stand is a separate piece of plastic that can be easily lost
  • Even with light use, one of the rubber feet on my S8 has begun separating from the body (may be repairable with adhesive?)

I’m sure you’ll note the number of cons in this list. As a result, I could not recommend purchasing the Melson S8, especially if you’re seeking a good shortwave receiver. There are many other radios in the same price range which offer excellent shortwave reception. I would suggest the Tecsun PL-380 or Tecsun PL-310ET, instead.

The tilt stand is removable (and I appear to have lost mine)

The tilt stand is removable (and I appear to have lost mine)

If, however, you’re looking for a portable AM/FM radio with a built-in MP3 player, you may be pleased with the S8. And as I suggested, I’ve also found the S8 useful in a pinch as a laptop speaker.

But if you already have a Melson M7, do keep it. It’s a good radio, and functions well for what it does. I feel like the Melson S8 is an “upgrade” that its engineers never actually tested. If they had, they would certainly hear the high noise floor on the S8 and realize that this radio can only detect the strongest of stations.

I purchased my Melson S8 on Amazon, where the Melson M7 is also sold.

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