The power switch of the Ailunce HD1 seems to be a soft-switch not a true power switch. It can be tricked into powering up the radio in an off position. The radio will be on and you might believe it was off. This can cause the radio to be in your pocket and potentially transmitting and interfering with other station. The battery could get hot while stored and create a fire hazard. I have contacted Retevis in regard to this issue and they dismissed the case. Please test your radio and make sure it is off when turned off!!
We originally purchased a package of 10 of RT22 walkie talkies. took a few minutes to synchronize them and away our staff went. Seeing as we have more employees, we ordered another series of 10. Worked just the same. Exceptional quality! Light in weight, easy to operate and spans on long distances. Everything we wanted.
My first impression was that it was cheap, due to how lightweight and small it was. But the biggest problem I have is that it only lasted two and a half days. After two and a half days the PTT button stopped working, and it does not transmit audio. So now it is just a speaker. If you want a better mic that will work with the HD1 or RT6, get a Motorola PMMN4027
While this radio is definitely a step forward for amateur radio DMR hardware, there are some noticeable issues and limitations, and some feature currently lacking but hopefully available in the future.
1) Receiver Sensitivity: for a 10w radio, with great long range outreach, it has a very poor sensitivity for the returning weak signals from such range. they can hear you, but you can't hear them!!! at about .30microV it puts this radio to very cheap receiver standards. This is made even worse but a very sharp, low sensitivity squelch.
2) GPS features are primitive: Why not implementing auto switching or location of nearest channel based on the channel and radio coordinates? This would be a jewel and a deal breaker for a lot of traveling radio enthusiasts and could be used for locating nearby radio in simplex.
3) The display is on the dim side outdoors.
4) The programmable keys are lacking options. Zone could be added to allow quick Zone change without using the menu and many other options could be used but are not listed.
5) Missing a simple audio out or a simple audio in/out adapter to use with sound card or other devices.
6) Missing a small Bluetooth module?
7) Was the programming software developed by a student? So many bugs and issues it is ridiculous!
Please opensource and we'll get you a nice software rolling!!!
Overall a nice radio but not perfect and yet, soooo close....
Please Retevis/Ailunce, work on the firmware or opensource it so we can do it!!!
After 2 days : white screen ... return to amazon
second rt 82 :
After one month the « central censor buton « is not so good, a reel button is more but no reel buton on rt 82....
You can’t access vfo in all case ( mr or ch) very boring...
I've only had it a few days so still learning about all it's features but it's very well built, quiet heavy for it's size. The display is bright and easy to read and the menu's are also easy to follow.
The HD1 GPS has been a solid radio for me in terms of ruggedness. It truly lives up to its IP67 rating as I actually submerged it in water for 30 minutes. The HD1 seems to be very tough. I accidentally dropped it from about 30 feet onto concrete and it kept on working. The battery did pop off but I put it back on and it kept on going. I've used it for both repeater communication and in simplex mode. No reports of bad audio or breakups. Programming from the keypad is actually quite easy once you get use to it. The programming software is functional but could use some updates. I'm sure it will mature in time. The display is a bit dim for my taste when in direct sunlight so hopefully this is addressed in future firmware updates. The GPS is very accurate and I hope Retevis develops an SDK so we can create some mapping software. Overall I think it's a great radio and Retevis has been responsive to feedback from users, fixing bugs, etc.
I have ordered that one accessory because I thought it would be the most cheaper and most simpler solution to access RT82's 13-pin connector for packet-radio usage over an AX.25 modem that had standardized round 6-pin mini-DIN jack. So the price was good comparing to some bigger external microphone/speaker combos provided by Retevis. And the shipping time was also excellent over the standard cheap postal service. When the package arrived, I tested the item for its primary function, that means listening to the ear and talking by the small mic that can attach to your shirt's pocket or so. It worked quite good. The manual PTT activated TX without problem, and I got good reports from hams who had used local repeaters. I tested the item while continual walking (did not stop for a while to talk), in order to test overall capabilities of portable walking & talking. The reports were good in general.
Nevertheless, I want to see how to use that product for old, good packet by using RT82's analog mode. At the moment I still do not have any clue what to do to adapt the earpiece as an interface for attaching the RT82 to a packet modem. In the meantime I got a schematic diagram from the factory, showing a resistor and a capacitor of unknown values somewhere within the earpiece construction. However, I do not have any idea of their locations and functions. Hence I do not know what would be the best way to adapt the earpiece (by disassembling its parts) so to make a proper and usable cable interface to a packet modem. That is why I kept 4 stars only for the quality of the earpiece, as well as 3 stars only for the communication.