Uniden GMR-2838-2CK Waterproof 2-Way Radios, green, two radios Reviews
Walkie Talkie Two Way October 18th, 2011Are you looking for Uniden GMR-2838-2CK Waterproof 2-Way Radios, green, two radios,is on sale at amazon.com and free shipping. Uniden GMR2838-2CK Two Way Radio GMR2838-2CK Walkie Talkies This pair of two-way radios is perfect for hunters, hikers, or any other outdoors type, offering a range of up to 28 miles, 22 GMRS/FRS channels with 121 privacy codes, a wealth of user-friendly features, and J1S4 waterproofing for use in rain and damp environments. Great for hiking, hunting, or just keeping track of your fellow explorer. Waterproof Two-Way Radios With a 28-Mile Range 22 Channels and
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Buy Uniden GMR-2838-2CK Waterproof 2-Way Radios, green, two radios on sale.
- FRS/GMRS two-way radios with 22 Channels (15 GMRS, 7 FRS) and 121 privacy codes, 28-mile range
- Waterproof to rigid J1S4 standards–perfect for use in rain and damp environments
- Powered by rechargeable NiMH battery packs; dual drop-in charger/adapter included
- Five call tones and selectable roger beep; headset jack for VOX or PTT-type headset operation
- Bundle includes two radios, battery packs, AC adapter, charger, reference guide, and pair of belt clips
- J1S4 compliant waterproof means it will work well in rainy weather and damp environments
- 7 FRS, 15 GMRS and 121 privacy codes give you plenty of options and less interference from other users
- The charging kit that comes with the Uniden GMR 2838-2CK keeps your radio ready for action
- Scan helps you find others in your area
- Talk to people up to 28 miles away
Are you looking for TriSquare TSX100-2VP eXRS Digital Two-Way Radio (Pair) – Charcoal Metallic/Black,is on sale at amazon.com and free shipping. TriSquare has revolutionized 2-way radio communication with eXtreme Radio ServiceTM (eXRSTM). eXtreme Radio Service (eXRS) two-way radios use proprietary Frequency Hopping Spread Spectrum (FHSS) in the ISM band (900 MHz frequencies). This FHSS system combines the power of digital technology with narrow band FM modulation technique. Merging the two technologies facilitates a radio communications system that maintains a narrow band base signal to ensure for maximum usable range within a given dB p
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- 1,000 Channel
- 1″ backlit LCD screen
- Phone Book Stores up to 10 Contact Entries
- Voice Operated Transmit (VOX)
- Includes dual charger with adapter and 2 rechargeable battery packs.
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6 Responses to “Uniden GMR-2838-2CK Waterproof 2-Way Radios, green, two radios Reviews”
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October 18th, 2011 at 10:27 am
Warning: Amazon reviews combined,
Be warned, Amazon is combining reviews for all Uniden 2-way radios.
Despite being drastically different models, Amazon has classified them as different “styles” of the same product. Use caution when reading reviews, the specific model shows at the top of each review.
Hope this helps other confused people.
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|October 18th, 2011 at 11:24 am
36 Miles is Fantasy, License Required,
I’m an electrical engineer with many years experience specifically in RF (that’s Radio Frequency).
This review is meant as a heads up to the ordinary consumer who is probably not an RF engineer.
These radio’s “channels” actually span the Family Radio Service (FRS) and General Mobile Radio Service (GMRS).
In the US you are required to get a license from the FCC to use GMRS. It costs $75. The FRS requires no license, but is restricted to 1/2 a watt of power. GMRS can use up to 5 full watts, but if you’re unlucky enough to get caught (which is unlikely) you can get a huge fine, which will ruin any trip. This information is easily googled and will also be in the instruction manual for the radio. Just search for “GMRS license”. Or go to the FCC’s website…
Also, these units transmit in the 450MHz range. At best the rubber duck antenna MIGHT give unity (as in zero) gain, but will probably exhibit a loss, which means you’ll actually be transmitting with less power than the radio is producing. If you’re using the radio in max power (5 watt) GMRS mode, you’re going to be lucky to get 3 miles out of these. In a dense forest it will be less.
36 miles is an absolutely ridiculous fantasy unless you’re both on top of a mountain or using a GMRS repeater (which will DEFINITELY GET YOU CAUGHT!).
And one last thing…the “privacy” channels offer no privacy whatsoever. They limit what YOU hear, by including an inaudible tone in the sending unit’s transmission, and checking for it in the receiving unit’s receiver. Your radio only receives transmissions with the inaudible tone, but anybody listening with a scanner or another radio that has no “privacy” channel turned on will hear everything you say. If you want to learn more, google “CTCSS tone”.
Just a heads up. These are good radios for what they are, just make sure you know what’s what. I’m always amazed at how they market these things.
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|October 18th, 2011 at 12:03 pm
Seems to work for me,
Have not tried them on open terrain, so I can’t speak for the 36 mile range, but they worked for about 3 miles with obstructions. Thats better than I expected. I like the fact that they are not too small. I also like the yellow case (easier to find). My favorite feature is the ability to change channels on one unit and the 2nd unit follows. Thats really handy. I was a couple of miles away and there was chatter, so I changed to a higher channel and the other radio followed. You have to study the instruction sheet to figure all this out, but its worth the eduction. Also, get a GMRS license! It was easy and I did it online. The cost of the GMRS license for my family was $85. The waterproof feature is nice, but you have to be careful and make sure the speaker/mic jack cover is secure and it can be a bit tricky. I would NOT start dunking them in water just because it says they are waterproof. They look waterproof, but I don’t ever plan on testing that out unless necessary. One thing I would improve is the charger. If it were taller and heavier, the radios would stay in place in a moving vehicle.
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|October 18th, 2011 at 12:07 pm
Very Impressed! Great product!,
I purchased the TriSquare handheld radio for a cruise I took with my family in Dec. 2007 as I knew my cell phone would not work while at sea and I wanted to keep track of my kids. The TSX-100 worked very well. I was quite impressed. Very easy to use and my kids loved them. I have a pair of Motorola handheld radios that do not work nearly as good as the TriSquare. Reception is good while I remain in the house and my kids are in the neighborhood a few blocks away. I would certainly purchase again.
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|October 18th, 2011 at 12:22 pm
tsx-100 fantastic short range radio,
The TSX-100 radio is simply one of the best short range 2-way radios available. It uses the 900Mhz ISM band (902-928Mhz range). And is full 1-watt. Uses spread spectrum technology (similar to CDMA Cell Phones: Sprint, Verizon Wireless, US Cellular, Cricket) which makes it JAM-PROOF and highly unlikely that anyone can monitor while using the best scanner radios. 900Mhz band means easy penetration thru thick walls and buildings with dense materials concreate and metal. It is simply the best for Indoor-to-Outdoor or vice-versa comms. And has identical coverage with VHF when used for Outdoor-to-outdoor use.
The TSX-100 does not have all of the exra bells and whistles of the TSX-300 radio:
- 1,000 virtual channels (using FHSS)
- is compatible with all TSX-100 radios
- is compatible with all TSX-300 radios (below channel 1,000 ;
channels 0-999 allows interopability to any Trisquare radio)
(See my review of the TSX-300 for a list of some of the bonus
features on the TSX-300)
With the PRO features, there is one notable CON:
- Do NOT place the TSX-300s or TSX-100s too close to each other.
- They sometimes experience De-Sync issue when a unit nearby
transmits too close. So keep them 4 or more feet apart from
each other. This only occurs when too close to other Trisquare
radios. This does not seem to occur when other nearby radios
or cell phones are placed too close. So no need to worry about
MURS, FRS, GMRS or HAM radios are under 3 feet away.
At least 95-100% of all of the bad reviews or complaints about this radio is over this single flaw in the radio. Rule of thumb, keep the
TSX-300s and TSX-100s a minimum of 4 feet apart from each other at all times, and you will never have any problems at all. Simple right?
Even the TSX-100 is so much better than any MURS, FRS or GMRS radio.
900Mhz just has superior radio properties over all VHF and the rest
of the UHF band. 900Mhz penetrates and bounces around inside buildings
better then any other UHF service. And certainly superior over VHF as VHF does NOT bounce well inside any buildings. Instead VHF gets knocked out of phase, and its wavelength mostly gets cancelled-out or worse yet ABSORBED into the building’s materials: concrete, wood & metal. VHF is an OUTSIDE only band. UHF is a good inside and outside band. 900Mhz has the best properties. FRS/GMRS operates at 462 & 467Mhz. Take 462 x 2 and that equals: 924Mhz, which means that 900Mhz has a wavelength that is HALF that of FRS/GMRS. Which means none of the wavelength phase interference of VHF or even of the low-UHF at 462Mhz. Again, it boils down to superior in-building penetration. Thru Concrete, Wood & bouncing off of Metal.
Enjoy your TSX-100, enjoy the superior 900Mhz properties for indoor-to-indoor or indoor-to-outdoor (also vice-versa), or even outdoor-to-outdoor comms. Its FHSS full 1-watt of power will show its superior ability over all MURS, FRS & GMRS radios.
- MURS – VHF 2-watts ERP (Poor Indoor properties – not recommended for
any indoors use at all ; Any scanner can receive, no privacy)
- FRS – UHF 1/2-watt (Good Indoor properties – 1/2 watt max power)
Any scanner can recieve, no privacy ; some HTs have limited voice
scramble function)
- GMRS – UHF 50-watt (Good Indoor properties – 5-watt HTs are hard
to find ; Any scanner can recieve, no privacy ; some HTs have a limited voice scramble function)
- EXRS – 900Mhz 1-watt (Superior Indoor properties – full 1-watt HTs)
FHSS assures no scanner can monitor, wonderful privacy feature)
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|October 18th, 2011 at 1:19 pm
A little shy on range, sometimes,
I bought a pair of TSX-100′s after reading a review of TriSquare’s upmarket but similiar TSX-300 900MHz radios in a radio hobby magazine. My intent was to use them to keep track of my bike riding buddy on longer road trips. They more or less work in this application but I have found them much more useful for staying in contact with my wife when out for extended walks or while shopping in malls & power centers.
The range is highly variable (sometimes several miles) and it seems to have gotten better in the 8 months I’ve had them. The batteries will hold a charge all day (8 hours anyway) after a full overnight session in the charger. While we’re carrying them, my wife & I never power ‘em off until we get home.
The advantage (maybe the only one) over FRS radios in the same price range is that you never get interference from other users on “your” channel ’cause you got 999 channels to pick from.
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