How my Mom named me

It’s Mother’s day and I’ve been thinking of my late mother today. She told me that she gave me my name and that it came from a radio soap opera character named Kevin Bromfield. I looked before and couldn’t find a reference, but today I did. Kevin Bromfield was a “handsome, brilliant attorney” that appeared on the Our Gal Sunday series on CBS radio. Bromfield died on the show saving Sunday from a crazed killer.

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5 DSP radios

Looking on the radio shelf, I see 5 shortwave radios that are powered by the same Silicon Labs si4734 “shortwave radio on a chip.” There’s not much difference in the radios as far as performance goes except on MW or AM, where the size of the internal ferrite antenna matters. The difference is in size, features, ease of use and price. They all sport continuous coverage, preset station memories, all-digital operation, alarm, stereo FM, signal strength/SN ratio display and scan tuning.

imageStarting with the smallest, we have the Kchibo KK-D202. The D202 is the only truly shirt-pocked sized radio in the bunch. I got mine for under $25 including shipping on eBay. It has a real brushed aluminum front and is a nice shiny radio. It’s antenna is pretty short and that reduces its ability to pull in stations. You can read my longer review here. This radio has a design flaw as far as I can tell. There are two modes for the volume control (changeable with a complicated button press). One of the settings makes all of the volume  control settings way too loud and the other makes them way too soft. The other problem is that the display is small and hard to read, with no back light. To add to the confusion, the buttons are labeled in Chinese and there is no English manual beyond the one in my product review. Better is the Kchibo KK-D680.

imageThe Kchibo KK-D680 is a little larger than the D202, but still can be crammed into a shirt pocket. It costs about the same as the D202. It gains a tuning knob in exchange for the D202’s volume control knob, a good thing, because one of the volume settings actually allows the control, in this case buttons, to work well. The antenna is still short and the labels are still in Chinese. AM performance was slightly better. The feature set is identical with the D220 except for the fine dial light and larger display. The D680 is clearly superior to the D220 except for compactness. My review of the D680 is here. Better is the Tecsun PL-606.

imageThe Tecsun PL-606 is yet another step up in size and price, but still smaller than a paperback book and some shirt pockets will hold it. I snagged this one including shipping on eBay for $36. It has more flexibility: you can set the FM and AM tuning range and AM step easily. It has 4 bandwidth settings. It recharges batteries. It has a control lock, temperature display and adds long wave reception. The antenna is longer and that helps, plus it includes a whip antenna extension, and sports an external antenna jack. AM performance is better. The two Kchibo radios have preset memories (90), but the PL-606 adds automatic scan and storage into a total of 550 memories. Oh, and there is a manual and the labels are in English. Better is the Tecsun PL-380.

imageNow here’s a keeper. The PL-380 (reviewed here) with yet another step up in size and price ($48.99 with shipping at Amazon) does everything that the 606 does, except it lacks an external antenna jack and adds direct frequency entry through a keypad. That overcomes the huge problem of interminable button pushing or knob twisting to go to a station and is the reason this radio will get used and the others will stay on the radio shelf.

imageSince I originally wrote this article, I bought a Tecsun PL-390 with yet another step up in size and price ($67.50 at Amazon.com). The most noticeable difference is the second speaker, making this radio stereo-capable without headphones. The antenna is considerably longer than any of the ones described so far and it adds back the external antenna jack missing on the PL-380 and adds a line-in jack, so the radio can be used as an auxiliary speaker for a music player, and the results are pretty good. There’s no bass to speak of, but you can turn it up pretty loud without distortion.

Update (7.14.2023)

Wow, 11 years have passed, and all of those 5 radios are gone, sold on eBay. Today, the radio landscape has changed, pretty much everything is DSP. If I were to pick my top 5 DSP-based radios today:

  • Eton Elite Executive
  • Sangean ATS-405
  • Tecsun PL-330
  • Tecsun PL-880 (DSP detection only)
  • XHDATA D-808
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Death to robocallers

I got angry today, after the 7th recorded political phone call from Mitt Romney in just 2 days. I called the campaign and I gave them a piece of my mind. Romney, while the most egregious robocaller, is not the only one.

It’s been disruptive. It’s interrupted me struggling to carry a big heavy box, taking a nap, watching a movie, eating a meal.

I solved the problem. I turned off all the ringers on my phones and put this message on the answering machine:

Hi.

Due to the high volume of political robocalls, we have had to disconnect our phone system ringer until after the South Carolina primary. You may leave a message at the beep.

If someone really wants to reach me, they can call my mobile number which fortunately the candidates don’t know.

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New look

I changed the theme here at Blog or Die! I liked the old one, Misty Morning, but it has technical issues and didn’t seem to work with the new Photo Album. Plus it was a bit narrow. So I’ve installed the WordPress 2010 theme and it seems to be working well. I may replace the stock photo up top with something I took.

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Kchibo KK-D680 radio invites comparison with smaller cousin

I continue to be intrigued by the tiny DSP radio from Kchibo, the KK-D202. That’s the radio that I’m most likely to slip in my shirt pocked when walking out the door. This KK-D680 from Kchibo fits in a shirt pocket too, though not quite as comfortably at one inch thick. The covers are different, but there is a lot similarity under the hood between these two radios.

KK-D680_540

Both radios have Chinese labeling and manuals and are similar in many other respects. I found by disassembly that the KK-D202 used the si4734 digital signal processing chip from Silicon Laboratories, and I am assuming this new radio uses the same based on similarities in operation.

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Kchibo KK-D202 shortwave receiver review

The Kchibo KK-D202 is an AM/FM/Shortwave receiver based on the Silicon Laboratories si4734 digital signal processing chip. There are three versions of the radio: the Chinese labeled D202 (reviewed here), the D202 upgrade (adds 9/10 KHz AM radio channel separation switch in the battery compartment for use in North America) and the E202 with English language labeling.

I bought my radio from eBay seller circle607 who sells the original model under $25 including shipping. The radio comes with ear buds, an external clip-on antenna, carrying strap and a soft pouch. Presumably it also comes with a manual (mine had a manual but for the wrong radio).

IMG_0301

In addition to what you can see in the photo, there is a volume control on top, an earphone jack and an external 3v DC power input jack.

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Tecsun PL-118 Stereo FM radio review

I usually write about shortwave radios, but this FM-only radio deserves a mention. It represents a  cost/performance/feature breakthrough based based on a new integrated circuit radio-on-a-chip.

Let’s start with cost. I paid $13 plus $7 shipping from eBay seller ANON-CO. It arrived in 8 days from Hong Kong. I selected a white model, but it is also available in black or orange. The actual radio is slightly under 4” wide, just bigger than a deck of cards. It runs on two AAA batteries.

PL-118

This is a deceptively simple-looking radio. In addition to what you see here, the only other control is a single thumbwheel knob. Nevertheless, this is a fully-functional clock radio with sleep timer and scanning memory. The DSP on the front refers to the digital signal processing chip that basically does the work in this receiver.

Maybe the best approach is to explain the controls. With so few controls, they have to do double duty. The button that looks like a clock face can be pressed and held to enter time setting mode for the hours, minutes and 12/24 hour mode. Hold the button down a second or so to enter time setting mode; set the hour with the thumbwheel. Press the button again to set minutes and again to set 12/24 set mode. When the radio is on, this button briefly displays the time in place of the frequency. The next button that looks like a speaker and sound waves is the alarm set and off/on. Press the button briefly to turn the alarm off and on. Hold it down to enter time setting mode. When the alarm is on, an icon appears in the display as you see in the picture above.

The ETM (Easy Tuning Mode) switches tuning modes. In normal mode, turning the thumbwheel tunes the radio. Pressing ETM switches the receiver to tune by what is stored in the memories and the thumbwheel runs through the memories. A long press of the ETM button initiates a scan of the FM band, loading up all the stations into memory. This feature is similar to many television sets that scan the channels once when the TV is first turned on and thereafter you only see the active ones.

Pressing the VOL. button switches the thumbwheel from tuning to volume with a digital volume level displayed while you set it. The power switch turns the radio off and on. Also, holding it down engages sleep timer setting (the sleep time value is set by turning the thumbwheel). A battery status indicator displays all the time.

In practice, the radio was quite sensitive and I was able to receive 33 stations nicely. The internal speaker was crisp and ok to listen to for voice. For music, the internal speaker isn’t pleasant to listen to. With a good set of headphones, music was very nice, but lacking in the low bass tones.

If you look to the left of the TECSUN logo in the photo above, you’ll see a scratch. That’s my only real problem with this radio. It’s going to scratch easily and not look so cool in time. The buttons, which are integral with the front panel will likely show wear quickly as well.

As for the manual, you are reading the only one I know of. Nothing came with the radio.

Update: I have now found an English manual that covers most of what is in this article.

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