Rating: 
Summary: TERRIBLE Range
Review: I can't get more than 1/4 mile range out of these things on a consistent basis. Line of site is not better than 1/2 mile. I plant to return them at my earliest convenience.
Rating: 
Summary: Power output of the t6400
Review: I do not own this radio, although I explored all it's features.
Per the owner's manual that I downloaded from Motorola, the power ouput on all GMRS frequencies is 1 watt, with the remaining strictly FRS frequencies at one half watt. I came very close to buying 3 of these units for hikes in heavily wooded areas of New England, but even at one watt, I was concerned with the distance. I elected to buy 3 of the Midland G-30's due to their 2 watt output, even though the Motorola had better features such as voice compression, vibrate call, and the 7 other FRS frequencies. The Midland G30 comes with NiMH batteries and charger. The Motorola does not, although it can be purchased through Amazon (...)
(the t6400 uses the same accessories as the other 6000 series i.e. t6300). I hope this helps all future buyers!
Rating: 
Summary: $75 FCC fee, No NOAA Weather, 1 watt output
Review: I ordered 2 T6400s, but am returning them for a couple of reasons.
- This model does NOT support NOAA weather radio channels.
- The FCC license fee is $75 per call sign (per FCC web site).
- The power output is 1 watt maximum (GMRS radios can be up to 5 watts).
I already have an ICOM M3A handheld marine radio for kayaking, and I will buy a second instead of using the Motorola radios. The Marine radios have a 5 watt output, but are about twice the size. If you are looking for a small 2 way radio, look at the T6300 1/2 watt FRS instead. They currently have a $25 rebate, and you'll save the FCC fee.
Rating: 
Summary: This product does not support Weather Channels!
Review: I spoke with Motorola and they confirmed that this product does not support Weather Channels. The editorial review on Amazon.com for this item is not correct.
Rating: 
Summary: I have had FRS since the start
Review: I started back when there was only one channel in FRS. I bought two radios from Radio Shack, they were the best of the whole bunch, but the dog chewed off the antennas one day. Ever since then I have not found a decent replacement. I bought other radios but had issues with them all. The good thing about these 6400's over other radios I have owned:
-rechargable batteries save a lot of $$$
-rubberized trim for protection
-auto-off to save batteries
-call beeps, we use them as "code"-large display
-good size belt click with no need for a case
-the dog doesn't like the taste of these antennas. :> I have two of these, I am buying a third for guests. I found the best radio!
Rating:
Summary: I have had FRS since the start
Review: I started back when there was only one channel in FRS. I bought two radios from Radio Shack, they were the best of the whole bunch, but the dog chewed off the antennas one day. Ever since then I have not found a decent replacement. I bought other radios but had issues with them all. The good thing about these 6400's over other radios I have owned:
-rechargable batteries save a lot of $$$
-rubberized trim for protection
-auto-off to save batteries
-call beeps, we use them as "code" -large display
-good size belt click with no need for a case
-the dog doesn't like the taste of these antennas. :> I have two of these, I am buying a third for guests. I found the best radio!
Rating:
Summary: T6400 better than you'd think
Review: I was disappointed that the 6400 has 1 watt, but it clearly out performed another 2 watt radio I was testing. The voice clarity is AMAZING !!! My impression from use in a suburban area is that it will function at a distance about 1.4 - 2 times the distance of a good FRS radio, BUT, with vastly superior clarity for most of that distance. I've not made up my mind yet about keeping them. My only hestitation is whether I can find a 2 watt or higher radio with the same (reasonably) small size and clarity (from the digital compression). I was hoping to get a solid 2x distance - but I may settle for the pleasant surprise of the wonderful clarity.
Rating:
Summary: Nice, when it works!
Review: I've had this radio since november 2001 and i found it very good at the begining. I had a problem with a radio because the speaker fails from time to time so i had to buy a hands free while i had it repair. I sended it back to Motorola, and aparently the solved the problem at no cost for me because of the warranty. Now, over 6 months later, the other radio (wich has not been repaired) is having the same problem as the first one, So what's the deal? do they had a problem making this radio or just back luck for me, now i have to pay to repair it bcause the warranty has expired. I don't even use the radio everyday so it can't be Overuse or something like that, hope someone from motorola read this.
Rating:
Summary: T6400 as GMRS Radio
Review: The reviewer from VT says the radio is worth the extra money because it has 5 watts power. The FCC type acceptance document rates the power as under 1/2 watt on all channels, which is the legal FRS power limit. There is no power level given in Amazon.com's technical data. It is unlikely that the radio actually has 5 watts power. FCC data copied from grant document:
FCC Rule Part 95A (GMRS): Output Watts 0.434; Part 95B (FRS) 0.336 watts. Emission designator is 11K0F3E at both power levels, which is the narrow channel bandwidth required for all transmissions on FRS channels and not the wider bandwidth permitted (but not required) for GMRS-only channels.
Rating:
Summary: nice features, mediocre sound
Review: These radios have some great features like the automatic shut-off, but ultimately the sound quality is not that much better than the lower-end Motorola models. The voice scrambler is useless, it ends up making your voice sound like a robot. I got mine from Office Depot for about the same price as the lower end T5300 series using a combination of store and manufacturer coupons. Otherwise, I'm not sure they'd be worth the extra money.
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