COBY CX-CB12 AM/FM/LW/SW 12-Band Radio
By: Coby Average Rating: 3.0 Total Reviews: 8
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 On: 2007-11-15
Sound quality is OK. Though there seems to be some issue with the tuning knob (time lag in knob and actual tuning).
 On: 2007-02-11
My experience with the Coby CX-CB-12 was one of unmitigated disappointment. I bought it as a Christmas gift for my 10-year-old nephew, and its a good thing I decided to try it out before giving it. Reception on broadcast band AM is OK for a cheap little radio, but the tuning knob wobbles laterally, and when it does, the sound cuts out and the tuning shifts off station. In order to tune up or down the dial, you have to hold the knob in a very precise plane of rotation, or else the radio cuts out. This single defect is so annoying I cannot recommend this radio to anyone for any reason. But there are plenty of other reasons to avoid this radio, including lousy shortwave reception, awful audio quality and horrible selectivity on FM.
Perhaps the worst aspect of this radio is people will give these as gifts or buy one for themselves as an inexpensive radio to get them into the shortwave listening hobby. Then theyll become discouraged, thinking shortwave listening is no fun, when the real problem is theyre using a truly crappy radio.
Scrape together a few more bucks and get a really good entry-level radio new or buy a decent used one. This Coby radio will do nothing but disappoint and frustrate you.
On: 2006-11-10
You sometimes get what you pay for. I was interested in this radio after the fancy Grundig Porsche style radios antenna broke and it stopped working. For small change and less leather, this radio is about equal in lack of sensitivity. For strong signals, its fine. An external antenna jack would be nice.
On: 2006-11-09
You sometimes get what you pay for. I was interested in this radio after the fancy Grundig Porsche style radios antenna broke and it stopped working. For small change and less leather, this radio is about equal in lack of sensitivity. For strong signals, its fine. An external antenna jack would be nice.
 On: 2005-10-27
For most people, Coby isnt the first name that comes to mind when you think of bang-for-the-buck electronics, but if ever the company had the opportunity for a turning point, or at least a shining exception, the CX-CB12 could be it. Know ahead of time that this radio doesnt break any new ground in sensitivity or selectivity - it picks up the same AM and FM stations at the same strength as any other under-$50 radio youve ever used. That being said, this radio has some big advantages.
A quick glance at the wider-than-tall analog display gives you an idea of its expansive shortwave band coverage. There arent any other radios in that under-$50 class that let you listen in on the 60 all the way to the 13 meter bands. Any and all of the major international SW broadcasts can potentially be received by this radio.
The control surfaces belong on a much more expensive unit - the power and band selection switches on the front move with luxury car smoothness, and the large, open tuning and volume wheels on the right side have clearly been designed for comfortable long-term listening.
Add to this incredible battery life. With only the little "Tune" LED contributing to power drain aside from the actual radio circuit (the power and band selection indicators are all mechanical), you can enjoy several hours of listening a day for literally months without replacing batteries.
Should you purchase one of these gems, you should also pick up a $10 pocket reel antenna (available here on Amazon and anywhere else radios are taken seriously), which will exponentially improve your SW reception. I have picked up several numbers stations (Google "numbers stations" if you dont know what those are) using only this $10 radio and $10 antenna setup. You wont be able to use a bare wire or large antenna, as powerful and/or nearby AM stations will flood the dial at all bands and frequencies, rendering reception impossible (yes, youll have to spend more than $20 to hardcore DX). Accessory-wise, the included earbuds are of course cheap, but this makes sense as the purchase price should go towards the actual radio itself, not earphones. A quality set of headphones will result in quality sound.
And all of this for *ten bucks*. Its an ideal first SW set - if you or someone you know is interested in what the buzz is about shortwave, you can get your foot in the door here for the cost of lunch. At this price, losing it on vacation or having a curious youngster immolate one isnt such a big deal. Its quite possible that this is the low-cost mass-produced Model T of shortwave radios, and hopefully Coby will take note and build on this example in the future.
On: 2005-07-03
I bought this receiver one year ago. I use it to listen to KFI and CBS talk show every night in Los Angeles. It works great. I cant believe it got so low rate here. With this little expense and such high quality, I would like to rate it 5.
 On: 2005-03-20
The Coby CX-CB12 portable radio is an analog multi-band radio that can be had for under $10. At this price you cant expect much, but the question is...is it worth spending any money on this radio?
The radio itself comes in a nice box and it includes a set of ear buds. The radio would be considered a large coat pocket size radio. The overall feel is a bit better than what you would expect for such an inexpensive radio. Instead of thumbwheels you actually have side-mounted knobs to turn which (in my opinion) are easier to use. The front of the radio contains the speaker, the slide rule dial, a little tuning light and slide controls to turn the radio on (a nice feature) and to change the bands. The analog dial features a little indicator that tells you what band you are tuning. Unfortunately, the dials contrast is low making it difficult to see the numbers.
The radio is powered by 2 AA batteries which should last a long time. It was a tight squeeze to get the batteries in. You also have a port for an adapter, but one is not provided.
The earphone jack allows mono output through both stereo ear buds. The speaker provides reasonable "pocket radio" sound at a reasonable volume. Sound is much better using headphones and actually is quite pleasant.
Performance:
LW: The US doesnt use long wave (except for some beacons) so I couldnt test this.
MW (AM) AM reception is OK. I was able to tune Chicago stations with ease. I was also able to tune strong out-of-state stations from many locations including 50 KW clear channel stations from Texas, Colorado, New York and Tennessee. Selectivity was a bit below norm but OK. Strangely, if the telescopic rod was extended, the radio would whine more and (toward 1600 KHz) it would actually pick up shortwave.
SW: The Coby provides a number of shortwave bands. With the built in whip antenna it did a reasonable job of receiving international broadcasts. Its simple single conversion design did results in images and some birdies and di-dah sounds, but they were not too objectionable. I tried the radio with a short 10 foot wire attached to the whip antenna. This overloaded the radio and I started to hear AM broadcasters on the shortwave. Selectivity is OK for this type of set. Shortwave would only be suitable for the big broadcasters like the BBC and Radio China but it did a reasonable job receiving those stations.
FM: At my office FM was fair. However, my home is only a few miles away from a local FM station. The station at 95.9 pretty much obliterated the lower portion of the FM dial. I could get our towns college station at 89.1 but not much else until WFMT at 98.7. Shortening the antenna had no effect. Based on this FM would only be acceptable if you were far away from any broadcasters.
If the FM section worked better, the Coby would be a nice little radio, especially at $10. No, it is not as good as a $50 dollar radio but at $10 it is in the disposable category and it could be used at the beach, camping or as a gift to a kid who has expressed an interest in radio. With that said, the FM performance was so disappointing that it would be hard to recommend it. A very good alternative is the jWin JX-M14 which can also be had for around for $10. It doesnt have quite the same frequency coverage but it does offer a digital readout, better FM and decent MW and SW performance. The jWin handles a short wire antenna well, giving it the ability to pick up weaker stations.
On: 2004-11-10
I purchased this model for a lower price at a local "mom and pop" store in my town. This model is quite cheap in quality and rivals Goodwill in value. Thats the problem, the tuning indicator sticks while "sweeping" for stations, and since its a low-market model, it lacks decent sound quality and any form of sensitivity. Its not too bad if youve recieved it as a gift, but quality control is severely lacking for this company.
On: 2004-04-13
Not working only after five minutes after I got it. The power button is not working properly. Dissemble it and it can work without the outer box.
Never buy anything from Coby again.
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