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Antena Direccional Parabólica de Rejilla, 365-403 MHz, 15 dBd de Ganancia, 38 MHz de Ancho de Banda, 250 Watt, N Macho.Caractersticas Principales Antena direccional parablica de rejilla Elementos radiantes de aluminio Diseo resistente para condiciones extremas Proteccin contra rayos con conexin a tierra DC Permite polarizacin horizontal o vertical Rendimiento constante en toda la banda Especificaciones Elctricas Rango de Frecuencia: 365 403 MHz Ganancia: 15 dBd (17. 1 dBi) Ancho de Banda: 38 MHz VSWR (mx): 2: 1 Polarizacin: Vertical u horizontal Impedancia: 50 Patrn
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.7 ★★★★★
Based on 1864 reviews
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Product Reviews
★★★★★ 5
The best guarana I've used - helped me kick energy drinks!
Item Package Quantity: 1, Size: 100 Count (Pack of 1)
I suppose I ought to stand in front of a group of people, and admit to being a caffeine addict. However, I rather like caffeine. I started in on caffeine at an early age- first by drinking soda- mostly cola- as often as my parents would allow. As a teenager, I discovered coffee. Later, it was espresso drinks- I loved a good quad-shot latte, and eventually was getting several a day. A few years ago, my stomach stopped agreeing with coffee as much, so I switched to energy drinks. I was drinking about 4 Rockstars a day.
After doing the math, I realized that I was spending around $300 a month on these silly beverages. To economize, I switched to No-Doz. However, it wasn't the same, and it honestly felt... unnatural. The No-Doz sometimes aggravated my stomach, and I just didn't feel as well. Then I tried Guarana, as it is one of the main functional ingredients in many energy drinks. Love it. It seems to last a bit longer (it could be my imagination there, I am unsure), and it definitely feels more natural. I take a few of these per day- and I seem to have less of a "caffeine crash" after 4 hours or so than I once did. It still happens, but it's more gentle.
My only complaint is that the pills are rather large- definitely a chore to swallow!
Bottom line- this stuff costs just a bit more than a bottle of No-Doz, and is made from natural stuff. It feels healthier, and probably is. I now spend in a month wha I spent in a day on energy drinks. Also- for what it's worth- I've tried other brands of guarana, and this one "feels" best.
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Reviewed in the United States on March 8, 2012
★★★★★ 5
Great
Item Package Quantity: 1, Size: 100 Count (Pack of 1)
Great for those days when your feeling a little tired not super hyping just pleasant energy
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Reviewed in the United States on March 16, 2026
★★★★★ 3
Worked well for a few days, then built up a tolerance
Item Package Quantity: 1, Size: 100 Count (Pack of 1)
Guarana for me is one of those things that you should only take every once and a while. It gave me a nice surge of energy for about an hour or so after taking one, then after only a few mornings of taking one I noticed the effect completely wore off. So I stopped taking it for about a week. Then tried taking it again and it still did nothing. Maybe it's just my body, but now I need at least two to notice any effect. It's not that I even feel more alert now, it just makes me feel like I drank to much coffee. I will finish the bottle and then will not buy it again. Different supplements work differently for everyone though! Just because this didn't work for me longterm, that's not to say it won't work wonderfully for you. Trial and error is key with anything like this.
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Reviewed in the United States on October 29, 2013
★★★★★ 4
Great substitute for Adderall.
Item Package Quantity: 1, Size: 100 Count (Pack of 1)
This is a great supplement to have around, especially because it's SO easy and economical compared to coffee. I would happily rate it 5 stars BUT I have to admit that the first few times I took it, the jitters it gave me were pretty extreme. It didn't bother me AT ALL, but I know that it would be WAY too strong for a lot of people.
However, if you're not a stranger to over-loading yourself on caffeine (or other stimulants) and you generally like its effects, this should be a great supplement for you. Very importantly, the jitters went away by the 4th day I took it and now it's hardly noticeable.
I started using it so I could easily lower my daily dose of Adderall (prescribed for ADD) and it did the job well.
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Reviewed in the United States on September 6, 2018
★★★★★ 5
works
Item Package Quantity: 1, Size: 100 Count (Pack of 1)
I work night shift and these keep me energize without jitters. Also, I do not crash. They last a good 6 hours and I'm able to sleep when I get home.
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Reviewed in the United States on December 1, 2025
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