hockeyref2
Member
We use xpr 3300 series radios in an industrial/manufacturing environment (read: loud). Currently in Analog but plan to go to DMR when I have enough radios replaced. I have been buying new radios with PMMN4071A - the noise cancelling RSM. One issue we run into when testing out DMR is that you end up with holes in the audio.... I think its actually the noise cancelling on the RSM doing it. If you speak extremely loudly (over the noise, which can be >100db) it is not as bad, but I cannot expect people to yell all day long. If you enable basic or advanced noise cancelling (SINC) Intelligent Audio, it seems to make things even worse.
I just ordered/tried a PMMN4073A RSM which is windporting but non noise cancelling. With no noise cancellation on the radio (intelligent audio) it was not great. With Basic noise cancelling, you could tell someone was talking but could not tell anything they said. With Advanced Auto, it actually worked pretty well. My co-worker actually thought that the audio coming across was actually louder. I have not done quite enough testing to see if the audio clipping is improved.
The RSM's are about the same price, and the cost of SINC+ on the older radios is negligible...
Does anyone have any experience with this? Or thoughts and comments?
Thanks!
I just ordered/tried a PMMN4073A RSM which is windporting but non noise cancelling. With no noise cancellation on the radio (intelligent audio) it was not great. With Basic noise cancelling, you could tell someone was talking but could not tell anything they said. With Advanced Auto, it actually worked pretty well. My co-worker actually thought that the audio coming across was actually louder. I have not done quite enough testing to see if the audio clipping is improved.
The RSM's are about the same price, and the cost of SINC+ on the older radios is negligible...
Does anyone have any experience with this? Or thoughts and comments?
Thanks!