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21  ho acquistato coppia di rt-5rv e usa solo lingua inglese e chinese , non italiano su menu14. Come si puo' cambiare lingua ??
Mi dispiace per ora che abbiamo solo l'inglese e il cinese, ma lo faremo in futuro.
22  I purchased the Retevis RT22 last year and then again a few days ago, I cannot get the old ones to work with the new ones???
Dear Tammy, Please try to programme same frequency and CTCSS between old and new, here's a blog for reference: http://blog.retevis.com/how-to-programme-rt22/ Best regards
23  RT24 TX Power HIGH/LOW: TX Power can be set to High or Low, but I cannot find what power corresponds to HIGH and LOW. Is it LOW=0.5W and HIGH=2W? Or maybe HIGH=0.5W and LOW is some lower figure? Can you please explain?
Dear Alberto, RT24 power is high 2W and low 0.5W, you can choose high/low in RT24 software,thanks Best regards
24  RT24 Firmware upgrade. I have an old RT24 and two new ones. Can I upgrade the firmaware to the latest available?
Dear Alberto, I don't understand your questions completely, you would like to talk between your old RT24 and new? RT24 hasn't firmware to upgrade, if you make them communication, please keep same frequency and CTCSS/DCS both them Best regards
25  Does the Retevis programming software exist for macintosh ? If not, how can I program my RT24 ? Thanks for your answer A.Kyndt
Dear Kyndt You can try to down and install RT24 software in your macintosh Here's a blog for you referece about how to programme RT24 radio: http://blog.retevis.com/programming-information-for-retevis-rt24/ Best regards
26  the speaker of my RT81 does not work, can I just listen with a free hand or Speakermic does someone know how to solve this problem?
Dear Oscarlos, Did you try to use earpiece? if earpiece is ok, indicate the speaker broken, please confirm Best regards
27  Hi i have just bought 10 RT45s and i wondered what earpieces you recommend for these? our current earpieces are 2.5mm but not work. thanks
Dear Criag, Recommened C9027A earpiece for you: http://www.retevis.com/1-pin-ptt-mic-covert-air-acoustic-tube-earpiece Best regards
28  How long does the charge last when you use the wall charger instead of batteries on a rt 388?
Hello Michael Ross, RT388 radio charge around 3-5 hours, pls notice check the power display in RT388 screen, thanks Best regards
29  When using the shoulder microphone, how can I turn off the PTT button on the RT1 to prevent accidental transmission?
Sorry but there is not a button to lock PTT . You could just lock the keyboard .