I recently finally obtained my own amateur radio license and was excited to try it out locally. I connected with a repeater station. However, one of the stations reported that their signal strength was very high, but the audio quality wasn't good. This made me think about whether there are any ways to test my equipment in advance so that I can hear my own voice clearly. I remember hearing about automatic repeaters, so are there any repeater stations like that available in Guangdong? Or are there online solutions for this? Thank you all.