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1  How do I program my new H-777 walkie talkie and is it necessary to do so? The squelch volume is too loud when interference is taking place. How do I adjust the volume?
You need to connect your radio to PC by cable , How to program it on software please read the guide here : http://blog.retevis.com/retevis-radio-frequency-programming/ . Then when you open the software , you will see just like the picture below -- There you could find the squelch levels , that's the function you need to set .And please note --
1. The higher the number is , and the stronger the ability of noise suppression is . But meanwhile it has less probability to receive the weak signal.
2. Conversely, The smaller the number is , the weaker the ability of noise suppression is , But meanwhile it is more easily to receive the weak signal.
3. A "0" level indicates that there is no squelch suppression function, which is the lowest level.
2  I just purchased 20 H-777 radios, to add to the already 30 I have. Of the 20 new ones, only three would open into programming mode. I have 17 little bricks that I can't program. I'm using the cable you provided, along with the same computer and software that I used on the other 30 H-777 radios. I'm using the same programming steps as the other 30, yet only 3 of the new ones would receive the new program flash. Do I need to return these? I need another 50 next year, so I'm hoping there is a simple solution.
Hello Chuck Marsalisi, Please download H777 usb driver and H777 software from Retevis official website: http://www.retevis.com/resources-center/ Attached a pic for you reference, then try to program in H777 software
3  I need instructions on how to use the software that came with the cables.
Please Download usb driver and software from Retevis official website:http://www.retevis.com/resources-center/ 1.Please you confirmed whether you choose the correct communication port, check it in computer-device manager 2.Please hardly press the programming cable port to connect the computer USB port
4  Hi it is possible to add other languages to voice announcement beyond english and chinese?
Sorry but no plans for now .
5  I have bought 10 of H-777 with the base charger and standard ear pieces that comes with the product and having mic. on the ear piece problem. It will transmit the audio but the mic. won't work when pressing. We have to unplug the ear piece from the H-777 and plug back in for it to work for a little while and keep on doing so. What can I do for the ear pieces to work properly without having to keep unplugging them?
Hello Sungsoo, The earpiece in H777 package is as a gift to send our customers, the quality is commom Recommending a better quality earpiece for you,please check the link as below http://www.retevis.com/2-pin-ptt-mic-covert-acoustic-tube-in-ear-earpiece-headset Best regards
6  I recently purchased a Retevis 2 Pin PTT Mic Covert Acoustic Tube In-ear Air Acoustic Earpiece Headset off Amazon for work (were use Retevis H777 radios) but when I tried it, my audio can BARELY be heard. The sound can be heard up to the point until it connects to the acoustic tube, at which point I can hear hardly anything. I really like the style and comfort of this earpiece. What could be the problem?
This is may be the quality problems , please send mails to your Amazon sellers to ask for your warranty .
7  Can I connect H777 with the PC whitch works on Linux platform?
Hello Matjaz Skrabl, I'm afriad you can't, H777 can work with windows system, Thanks Brgds
8  Is an FCC license required for the H-777? Thanks.
Hello Chuck, Most of our customers use H777 is normal without FCC license,if need, You need consult local FCC license institution Brgds
9  Can not get H 777 software to install on system. windows 10
I'm sorry but could you try it on win8 please ?
10  Salve, ho acquistato retevis h-777 , vorrei sapere le frequenze al quale viene impostata la radio di fabbrica sui diversi canali, se potente inviarmi un elenco. Potente indicarmi se è presente un canale utilizzabile liberamente in Italia ? Grazie Luca
H777 Factory Default Frequency is as the picture showed -- And PMR446 Frequencies are legal on your country ,they are