The Cobra 19 is sold in a couple of variations. There's the 19 Ultra 3 sold at Wal-Mart, the 19 DX IV, and even some older classic looking ones.
The Cobra 19 is about as basic as it gets when it comes to a CB radio. It has power/volume, squelch, channel selector, instant channel 9/19, and a PA function. It has a digital display with a signal/TX meter and channel indicator. The 19 DX IV also has an RF gain knob. The 19 Ultra 3 (usually the ones you'll find at Wal-Mart) does not, so if you plan on trying one of these on a job site where you might be really close to other radios, make sure you get the DX IV with the RF gain knob so you can clear up those radios that are really close.
It's a great little radio for ATVs, construction equipment, or other situations where you just need to talk from point A to point B without worrying about the fine details. They're also probably one of the cheapest radios you'll find, so they would be good for somebody wanting to dabble in the CB radio hobby without spending a fortune on their equipment. It comes with a stock Cobra mic and at least for me, received and transmitted audio was very clear and loud. I used mine on a 4 wheeler (AKA quad) for years and it never failed me. On one occasion I was on a mountaintop on a 4 wheeler with my little Cobra 19 and a 4 foot Firestik antenna and talked to a guy about 50 miles away in another county. That little radio got rained on, snowed on, covered in mud, and even scraped up one time when I rolled the 4 wheeler over, and the day I sold it with the 4 wheeler it worked just as good as the day I got it.
The only problem I ever experienced using it is that it's susceptible to cold temperatures. When it's really cold outside (when it nears 0 Fahrenheit), the radio will fail to operate sometimes. It wouldn't happen to me except first thing in the morning when the inside temperature of the car matched the outside temperature. It happened when it was on the 4 wheeler, and it also happened before when I had it inside our Ford Explorer. The radio would power on, and would either show a random character on the screen and not work, or just have very weak transmit and receive for a few minutes. The solution was just to leave it on for 5 minutes or so and let it warm up, then turn it off and back on. If you live in a cold climate, this may be something to consider. The two Cobra 148 GTLs I now have in both of our cars have not had any of the same issues relating to cold weather. It also does not have a ton of features. There's no built in SWR meter, talkback, roger beep, mic gain adjustment, brightness adjustment, etc. It has some of the bare minimum features, so if you're an experienced CB radio operator it may seem a little "naked", so you may want to look at some of the more advanced radios Cobra offers.
Generally speaking, the Cobra 19 is a good little radio, for what it is. It's a basic, beginner/recreational CB radio. If you don't use your CB a lot, if you're new to the CB world and just want to get your feet wet, or if you want to use it for something like off road vehicles or construction/mine sites, it will do exactly what it's supposed to do (assuming you don't let it get too cold) without breaking the bank and without overloading the user with too many knobs and switches. I would recommend it to those people described above. If the description above doesn't fit you though, you may want to look at a more advanced radio like the Cobra 29 or 148 GTL.
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