Motorola talkabout sx900 will not communicate when i press the ptt button they just beep

Here is a link to the user guide. http://www.banoggle.com/Products/Motorola/manuals/SX900-manual.pdf Page two will be where you will find most of the instructions. Check your frequency, code and Qt filter. Make certain they match one another identically. If you continue to have difficulties, set the code and Qt filter to zero (or off), as well as the weather alert. Then try the units again. Hope this solves your problem.

Best regards.

I had the same problem. Both radios were set up the same (frequencies etc.) but when I pressed the push to talk buttons they would beep and the light would momentarily flash. This would happen even thought it showed full battery charge on the meter. I changed out the rechargeable NiMH batteries to disposables and the radio worked fine after that. It's an inexpensive way to find out if your battery packs need replacement. You can also stay with the disposables but that means you can't use the nice charger anymore. Hope this helps.