Welcome to Retevis Support
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1  Regarding previous question (I have a pair of RT22s I need this with VOX activation with VOX earwigs but can't get it to work. How do I do this?) How do you save this action on the device?
You need a RT22 programming cable C9018A:http://www.retevis.com/2-pin-programming-cable-for-revevis-h777-baofeng-kenwood Then download RT22 usb driver and RT22 software from Retevis official website: http://www.retevis.com/resources-center/ After done, sent “vox” function in RT22 software, attached a pic for you reference
2  Error message when trying to Read or Write from RT22. Serial port open failed, check whether serial port settings are correct. Driver downloaded and installed Prolific USB-to-Serial Comm Port (COM4) also tried COM3 and 2 Software downloaded and installed The above looks correct therefore What are the Port Settings? or is there another issue I'm getting really fed up with this, at no point did it say I had to buy additional hardware and install software to get VOX to work.
Hello Gareth, So sorry to hear that You needn't buy additional hardware and software, please download in Retevis official website,Attached a pic for you reference http://www.retevis.com/resources-center/ For usb com port, please choose the corrent communication port in computer-device manager, port is same with RT22 software For example:
3  Hi, Which programming cable, software and charger base stations do I need for the RT22? Can you please send me a link to your store. kind regards, Jan
RT22 Software link - http://www.retevis.com/material/programming_software/RT22-programming-software.zip
RT22 Charger link - http://www.retevis.com/original-battery-charger-for-rt22-walkie-talkie
And also here is a blog about how to program our radios , if you need , please check here -- http://blog.retevis.com/retevis-radio-frequency-programming/
4  Is the Retevis RT22 and Motorola talkabout T260tp compatable with each other? If so, how do I program to work together? Thanks, Linda
Hello Linda, Note: two radio can communicate with each other, pls confirm frequency and CTCSS is same Motorola may have own specific set, so our RT22 is uncertain compatable with Motorola T260tp, you can have a try it Brgds
5  Can you tell me what the squelch setting does in chirp? Also I am using these in a big city. What is best to use for my tone setting? I am using DTCS now and it works, but sometimes some radios can hear me and others can't.
Hello Robert, Please set the squelch level in RT22 software, it's affected the environment When the environment is noise, the level adjusted larger to avoid other noise Attached a pic for you reference to set the squelch level Best regards
6  Have just bought a pair of RT22. Where to I find more detailed instructions for and old guy to understand and use. Many thanks.
Download RT22 manual here (also could find software and USB Drivers here ) -- http://www.retevis.com/resources-center/
7  Hi Retevis team. I bought 10 PC RT22 for my job it sound excellent but if i go to the end of the building i can not contact with other radios. i do not know if you have any equepment or dvices i can buy to suport the UHF signal inside the building to be more wide signal or you have another aidea thanks.
Hello Bassem, RT22 range may vary depending on environmental and/or topographical conditions We're developing small repeater to put in the building so that can strength communication single,After it's done, we will inform you at the first time Brgds and thanks for your support to Retevis
8  I would like to buy a few spare batteries for our RT22s but I don't know which type or number I should be looking for. Do you sell them separately ? thanks ! Ton Belgium
Hello Ton, Are you from Belgium, right? we can send spare batteries to Belgium by SwedenPost This is RT22 battery link: http://www.retevis.com/li-ion-battery-3-7v-1000mah-for-retevis-rt22 you can place a order by this link, Many thanks for your support Best regards
9  what are the specific channel frequencies?
Factory default frequency is as picture shows below --