Could that mean that the discrminator could have a de-emphasys system right up front? From: Ken Sent: Friday, March 29, 2013 8:45 PM To: 'Pierre Martel' ; 'George Csahanin' ; 'APP RPT' Subject: RE: [App_rpt-users] Something is rotten in the state of Denmark Some radios just don’t produce much HF noise, even right off the discriminator. I have a Hamtronics xtal-controlled 220 receiver (R100) that does not make enough noise. The PLL version does. Not saying there is a cause and effect relation – the discriminator circuit probably has a lot to do with it. 73 Ken From: app_rpt-users-bounces@ohnosec.org [mailto:app_rpt-users-bounces@ohnosec.org] On Behalf Of Pierre Martel Sent: Friday, March 29, 2013 8:21 PM To: George Csahanin; APP RPT Subject: Re: [App_rpt-users] Something is rotten in the state of Denmark Ok got it to tune. with rxboost=1. Did I forgot to reload the data when I made my initial test? dont know.. the program did told me that there was not a lot of high freq and not to use dsp.