I recently purchased a Sony UWP-D11 and I'm noticing quite a bit of white noise hiss. I've owned the UWP-V1 and from my testing the noise floor on the newer model is about 3-6db louder. I'm wondering what's normal? The specs on the product say 90db SNR so I thought it would be pretty quiet but really it's not as quiet as I expected. So here's what I've done-
I tested several UHF channels and am sure I'm not on a local TV channel. The RF signal is great. I set the UTX-B03 attenuation at 9db after testing recordings from 0db-15db. Listening through headphones on the URX-P03 I definitely hear the hiss. It's not terrible; just not as clean as I expected on this unit. My output on the RX is set at 0db and I'm recording on a Canon 7D DSLR. The levels all look good and my recordings match what I'm hearing on the headphones.
Adding a DeNoiser filter on a recorded audio clip just for analysis displays Noisefloor at -58db. In further testing, raising the output of Rx and lowering gain on the DSLR raises the hiss noise too. Is -58db noisefloor in the range of normal operation of this unit or do you think my TX mic input level was set too low from factory? Or something else?