One better: Tecsun R-912 radio

One of the top-rated budget ultralight shortwave radios is the Kaito WRX911 (also known as the Tecsun R-911). I have the Kaito-labeled version and it’s a respectable little radio. Add one to 911 and you get 912, inviting an obvious comparison to the Tecsun R-912 model that waltzed in today. My new radio was the Chinese version (there is also an English version).

Plus1

I was immediately struck by the similarity. Both cases are the same size and shape; the back could have been made by the same mold. Both have an identical 19” whip antenna and identical controls on the sides (volume, tuning, on-off) and jacks, 3v DC and earphone. Indeed, the only visible differences are the presence of extra button and two lights in the upper left corner of the Tecsun. The 911 switches all bands, including FM using the single band switch, while the 912 switches between FM and AM using the button, and notes which one is selected with the light (FM is the red light on the left).

There are two less-obvious differences that leads to the “one better” in this article’s title. First the second LED indicator upper right means something different on the two radios. On both radios the top light is a tuning/signal strength indicator. On the 911 the lower light just means “on” but on the 912 it indicates “stereo” for FM. Stereo is activated and the stereo light only comes on when headphones are plugged in. On my 912, the tuning indicator is on solid for the whole FM band and only shows signal strength on AM (on the 911 the tuning indicator works on all bands).

The second “one better” is in the number of bands: the 911 has 11 and the 912 has 11 (cool how that works out with the model number). The additional band is 3.55 – 4.0 MHz.

As far as performance goes, I couldn’t really tell any difference. Some folks say the FM is better on the R-912. Given how weak signals fade in and out, a real A/B comparison is difficult. Both radios drift some (wander off frequency) further complicating comparisons receiving weak signals.

These are respectable radios and you should be able to pull in a number of stations. If you don’t need stereo, however, I’d pick something like the Tecsun DR-920 with digital readout available for about the same price.

Looking for the Tecsun R-912 schematic diagram? Here it is.

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What’s the best shortwave radio under $50?

For what is being talked about as a dying hobby, shortwave radio certainly blessed with a wealth of equipment to choose from. Here I’m going to talk about shortwave radios that can be purchased new on eBay, or Amazon or other online resellers. They may be out of production now, but are available. $50 includes shipping to the US.

Right up front, I’m going out on a limb and say that the best radio is the Tecsun PL-380, a radio I’ve never used (it’s on order). I make this conclusion based on product reviews, and even YouTube videos of the radio in action. It’s available now from sellers on eBay for $44 with free shipping. I also base my conclusion on a lot of other radios under $50 that I have used.

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“Best” makes little sense without context. I’m going to assume that someone is looking to get into shortwave listening or that they are a casual listener looking to upgrade an old radio. I want to talk about features that make a radio fun to use and not frustrating, features that make it more likely that the radio won’t end up in a closet or a yard sale. If you want more details on the radios discussed, follow the hyperlinks.

The first thing is that a radio has to pick up stations. If it’s not sensitive, it’s no good. The Tecsun PL-380 specifications show its sensitivity on shortwave is 18 microvolts. That’s as good or  better than any portable I have found, and better than anything else under $50. The second thing needed to pick up stations is selectivity, the ability to focus in on one station and exclude the station next to it. The Tecsun PL-380 is best of breed in selectivity, giving the user selectable options to choose what sounds best.

You can see from the picture that this radio has a digital frequency display. That makes identifying the station you hear, or selecting a station from a schedule so very much easier. Many radios under $50 have this capability, but this is one of the few that let you enter the station’s frequency on a key pad. Others require that you have to figure which band (a range of frequencies the radio selects) the station is in from a list of perhaps 9, and then twiddle a tuning knob until you get there. These mechanically tuned radios have a little delay between the time you tune the station and when the display catches up. Also some mechanically tuned radios drift off frequency over time and you have to re-tune them.

One other feature is coverage. Will the radio receive the entire shortwave band or just pieces of it. How about the tropical band? The PL-380 covers from 2.3- 21.95 MHz continuously. That’s pretty good, although you won’t get CB radio with it. All the radios you might consider include FM and AM broadcast bands and some, including the PL-380 receive stereo FM with earphones. Earphones and a zipper carrying case are included. The radio is powered by 3 AAA batteries and it can use and charge rechargeable batteries.

About the only thing this radio lacks is the ability to receive single-sideband transmissions, commonly used by amateur radio operators. This is also the case with any other radio under $50. (If you want SSB, try something like the Grundig G4000A for more than $50).

I’ll finish up dumping on some other radios under $50.

The Degen DE15 is around $38 delivered. There are similar models, some with MP3 players for more than $50. This is a super-compact shirt-pocket radio with a lovely bright display. Its primary shortcoming is sensitivity and the way the tuning works. It won’t pick up that weak signal and you end up having to punch a button dozens of times to tune a station (using the pre-set memories is important on this model – but they are erased every time you change the batteries). With internally rechargeable batteries, this one is still pretty nice and it has stereo FM with headphones, so if you get tired of shortwave, you still have a good FM stereo ultralight portable.

The discontinued Grundig Mini 300 (a rebranded Tecsun R-919) is ergonomically nice with a rubberized case and a sturdy antenna that doesn’t snag on stuff when it’s retracted. It’s also not as sensitive as it might be, the tuning display is inaccurate (on both of mine and others reviewed on the Internet), and the tuning wheel is hard to position precisely – it needs to be geared down slower. The side-mounted volume control and tuning knob are inevitably changed when moving the radio in and out of its case, so if you’re out exercising and want to tune the radio and slip it into the belt-mounted case, you’re out of luck. This radio also omits significant parts of the shortwave  bands, for example, the tropical bands and some time stations. I also found the frequency to drift. There’s no dial light either. It’s a cool looking radio (that’s why I  have a black and a yellow one), but I wouldn’t recommend it for anybody’s only radio. Around $33 at Amazon.com with free shipping.

Perhaps a better bet than the Grundig Mini 300 is the more recent Mini 400 around $28. It’s smaller and adds Stereo FM. I think the frequency display is accurate, but it suffers from low sensitivity and it doesn’t cover all of the shortwave spectrum.

Finally for under $25 there is the mechanically tuned Tecsun DR-920. This is my pick for under $25. The display is lighted and easy to read. The entire shortwave band isn’t covered, but at least you can get tropical band.

Update:

My PL-380 finally arrived and I have had a chance to put it through its paces, including taking it on an international trip. There were few surprises. My model had a rough/sticky position on the tuning knob that doesn’t affect operation, but is a little annoying. I would assume that other radios wouldn’t have the problem. The radio is easy to use. The Easy Tuning Mode (ETM) is great for marking all the working stations in the area when traveling. The dial light is bright enough and makes it easy to read in the dark. The buttons don’t light up, but it was easy to learn where the important ones were.

One might argue that the Tecsun PL-210, with its better AM radio performance is a better choice in the “best under $50” category, but I have read in multiple reviews that the tuning knob gets erratic after a while on that model. Plus, I don’t have one to test.

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The best shortwave receiver under $25?

My nomination for the best low-cost shortwave set is the Tecsun DR-920. It’s available from eBay sellers for around $17 and comes in gray and silver.

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Right out of the box I noticed that the battery compartment door fit a little better than most of the low-priced radios I buy. The buttons and knobs are solid. The wrist strap is big enough. All in all, it seems well built and made a positive impression even before I turned it on.

After I turned it on, I was not disappointed. The tuning knob allowed precise tuning, with the frequency readout showing the exact setting. The display is to 5 KHz  on shortwave and 100 KHz on FM. The dial light wasn’t as bright as the photo, but it was adequate. I liked the fact that the dial light came on automatically while I tuned the radio (the light can also be turned on manually).

Reception was really outstanding for a radio of this class on all bands. I picked up CHU Canada on 7.850 MHz clearly (I’m in South Carolina) and reception wasn’t all that much better on my Grundig G4000A. I didn’t spend much time on AM, but I noticed that it picked up more stations that other small portables I have. FM performance was solid.

There are 10 shortwave bands (MHz):

  • 3.90 – 4.00
  • 4.75 – 5.06
  • 5.95 – 6.20
  • 7.10 – 7.30
  • 9.50 – 9.90
  • 11.65 – 12.05
  • 13.60 – 13.80
  • 15.10 – 15.60
  • 17.55 – 17.90
  • 21.45 – 21.85

The radio has one quirk. Pressing the power switch turns on the radio with the sleep timer activated, meaning it will turn off after the sleep setting expires. Maybe that is a good thing to save batteries. To turn the radio just plain on, you have to hold the power button down a couple of seconds.

Because this is a single-conversion receiver, it is prone to images — strong signals appearing on the dial on multiples of 455 kHz from the original signal. This can be confusing to hear a station on a frequency where it is not listed, nor actually broadcasting.

There is a lock button that keeps the radio from coming on accidentally, although the firm action of the power button makes accidental turn on unlikely. The radio operates on two AA batteries or an optional 3V DC adapter.

Things it lacks include: a signal strength indicator and FM stereo. The stereo version is sold by Eton as the G1100 for a much higher price tag. [The Et0n version of this radio is now selling on eBay right now for $12.99 including shipping.]

I have a lot of shortwave radios to choose from. I think this one is going traveling with me.

However, for $26 (if you’re lucky) you could get a Degen DE15 on eBay and it’s a better pick for its continuous digital tuning and stereo FM.

Update:

There is one more radio that’s come to my attention in the under $25 category: the Kchibo KK-D202. I’ve written a separate review of it. This radio has the disadvantage of all of the controls labeled in Chinese, and it’s AM performance is sucky. FM and Shortwave are, however, quite good, the radio is truly shirt-pocket size, it has a spiffy brushed aluminum face, a clock and station memories.

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Degen DE15 Vs. Grundig M400

Two identically sized mini radios go head to head

I was struck by the fact that two radios in my budget shortwave collection are so very similar in size, and I thought a comparison was in order.

Both radios cover AM, FM and Shortwave bands, have internal speakers and clocks with alarm. Both come with a carrying case, integrated antenna and ear buds. Both fit in a shirt pocket.

Degen DE 15

What impressed me right off the bat was the bright, and I mean bright, green display. You can see this thing! The DE 15 is a digital radio, meaning that the tuning is digital – no tuning dial. In addition to up/down tuning buttons, you can also scan for a signal and set up memory pre-sets. Volume is set digitally too.

The radio includes 3 AAA rechargeable batteries, AC charger and plush draw-string carry bag. The charger system uses an included USB cable so that you can charge from your computer. The USB connector on the radio is the common mini-USB socket found on many devices: cameras, mobile phones, Bluetooth headsets and radios.

The clock was relatively straightforward to set. It supports a 12/24 hour mode. The clock displays when the radio is off.

Band selection is accomplished with a 4-position switch on the left side; however, the shortwave bands are selected by repeatedly pressing a button.

The operation manual is somewhat odd in its language, for example:

While tuning the stations, you had better get very close to the window or stand on the outdoor field in order to avoid the interrupt and gain the best reception.

The manual is careful to note that if power is interrupted, everything goes to factory defaults and the clock is reset. I was able, however, to quickly change batteries and retain the clock setting if I hurried.

There is an FML band, which corresponds to the VHF television channels; however, since VHF isn’t broadcast in the US any more, this is useless here.

One nice feature that both radios have is a slide lock switch that prevents the button controls from operating. If you have opened your luggage only to find the radio on and the batteries almost dead, you will appreciate this feature.

The radio has 245 memory locations for favorite stations, although there is no way to label them. There are separate memories allocated for each band, meaning that the 20 allocated to the FML band are wasted. It has an Auto Tuning Storage that I hadn’t seen before. It works like most TV sets, to scan the band and set up the stations you get. Here each band can be scanned and the strong stations automatically stored. I don’t know how useful this would be on shortwave, but it certainly makes sense for FM, with 100 station memories available. It worked OK, memorizing only two FM stations that were too weak to be useful. These can be easily deleted.

Both with the internal speaker and headphones, I found the the audio to be crisp but decidedly lacking at low frequencies.

Grundig M400

IMG_1259What impressed me right off the bat was the rubberized case. No slipping or sliding with this one. Mine is a deep cherry red in color (also available in black).

Unlike the Degen, the M400 is an analog receiver with a digital readout. There is a tuning knob on the right side. The tuning knob was easy to advance quickly and to tune precisely. However, the radio tuning would change by as much as 10KHz if I put my hand under the LCD display (so don’t do that).

There does not seem to be any dial light, so the radio would be difficult to operate in the dark, except that since tuning and volume are easy to find knobs on the side, I guess the radio could be operated blind.

The M400 shortwave coverage is in two bands: 5.90 – 10 MHz and 11.65 – 18 MHz. In actual practice, I could  tune a little beyond these published ranges (see following chart).

Both with the internal speaker and headphones, I found the the audio to be have less high-frequency response and more emphasis at low frequencies. Stereo reception seemed to give a more expansive impression than with the Degen. The volume control is easy to accidentally change and this is proving to be an issue.

Head to head

  Degen DE15 Eton/Grundig M400
FM Stereo Yes, with earphones Yes, with earphones
Backlit display Yes No
Frequency Coverage (MHz)

MW .52 – 1.71
FM 87.00 – 108.00
FML 64.00 – 87.00
SW: 2.30 – 23.00

SW tuning is continuous, but there are 7 frequencies preselected when you press the band button repeatedly. They are:

6.00 MHz
7.30 MHz
9.50 MHz
11.70 MHz
13.50 MHz
15.20 MHz
18.20 MHz

AM .52 – 1.71
FM 87.00 – 108.00
SW 5.90 – 10.00
SW 11.65 – 18.00

The previous frequencies are the published ones. In actual operation I could tune:

AM .505 – 1.768
FM 85.7 – 108.8
SW 5.745 – 10.57
SW 11.48– 18.59

Lock switch Yes Yes
Weight with batteries 4.3 oz. 3.9 oz..
Battery level indicator Yes No
Signal strength indicator Yes No
Battery 3 AAA (rechargeable included) 2 AAA
Power options USB cable and AC adapter (included). Radio recharges batteries. 4.5 – 5v DC (adapter not included)
Memories 245 n/a
Sleep timer Yes No
Tuning Digital Analog
Tuning indicator Digital Digital
Clock Display HH:MM:SS HH:MM
Clock when radio is on Yes No
Accessories Stereo ear buds, AC adapter, USB charging cable, carrying drawstring bag, 3 AAA Ni-MH rechargeable batteries, Operation Manual Ear buds, carrying case with belt loop, stereo earphones, Operation Manual
Price

Performance

I compared the two radios tuning WWV at 10 MHz and 15 MHz in the daytime both using the whip antenna. The Degen pulled in both reasonably well, but the Grundig did not receive the 10 MHz signal at all and was weaker on 15 MHz. There was one troubling issue with the Grundig. I head a faint signal from a local broadcast station over the entire tuning range of the two shortwave bands.

On FM the Degen was clearly superior in pulling in stations clearly that the Grundig missed entirely. AM on the Grundig was essentially dead, picking up only weakly the very strongest local stations. I’ve had better results with a crystal set. I was about to call Eton customer service when it started working for some reason. Go figure.

This practical exercise exposed one other shortcoming of the Degen. It takes a good bit longer to tune the radio. For shortwave, you repeatedly have to press the SW button to get close to the desired frequency, then push +/- buttons to go the rest of the way. On shortwave, it steps at 5KHz which can take a lot of button pushing to go very far. Memory presets help.

Conclusions

Both radios work well. The Grundig is a delight to hold with smooth and solid controls and rubberized non-slip case. Music sounds better on the Grundig. The  One concern with the Grundig is limited shortwave band coverage, for example the tropical band isn’t covered.

The extremely easy to read display, rock-stable tuning and continuous frequency coverage make the Degen stand out. The Degen is more expensive, but I found one on eBay for the same price as the Grundig.

So which is my pick? To listen to music on FM with headphones, I’d pick the Grundig. While I like analog tuning, the drift and relatively low sensitivity make the Degen a clear winner for anything else.

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A tale of 3 Naxa radios

This is confusing. I bought what was described as a Naxa NX-716 radio on eBay. I paid $9.98 for it, including shipping. I bought this “cheap” radio because it looked cool. Here’s the picture from the auction:

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I didn’t pay much attention to the radio when it arrived, except to note that it worked. However, when I tried it on the AM band, there was a problem because the step was 9 KHz rather than 10 KHz, the USA standard. To see if there was a way to change the step, I checked on the Internet. However, when I searched, I used the model number on the radio itself, which is NR-716 (rather than NX). That led me to the radio for sale at Amazon.com, with this picture:

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Now you can see right off that the two radios are different. So at first one might think the eBay seller just sent me the wrong radio. But the problem with that is that my radio doesn’t look like either of these two! Mine looks like this:

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Notice that mine has 4 buttons on the right side rather than two knobs (the color is off in my photo due to lighting).

So I went to the Naxa web site and got the product manual for the NR-716 and it was for the for second model pictured above, not mine. I have my own product manual that came with the radio that says NR-716 and matches my unit. Naxa doesn’t list a NX-716 at all.

So I have a Naxa radio that says it is a NR-716, manufactured in June 2011. It’s different from the radio pictured at Amazon.com that’s called a NR-716. Ebay sellers list two differently pictured NX-716 units (top two photos above). I have yet to find one that looks like mine and I still don’t know how to set the step.

What’s cool is that I got a digitally-tuned radio for under $10.

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