We plan on interfacing with a Palomar repeater controller which uses FLAT audio in and out. It is designed strictly for disc audio in and output directly to a radio's modulator. Would the settings..... RXDEMOD = FLAT TXPRELIM = YES .... be correct to make sure the Palomar gets already pre-emphasized audio in and audio coming from the Palomar to the URI is de-emphasized in the URI before going out to the rest of the network? Many of the other nodes on the network are using MIC inputs and "Speaker" audio out. Would these commands go in the usbradio.conf file? If it is a DMK URI, would the same commands go in the simpleusb.conf file? Seems I remember setting something like this in the initial DMK setup...have only done one DMK. Not sure if final unit will be a DMK or some other URI. ...I know...a lot of questions! Thanks.... __________ Information from ESET NOD32 Antivirus, version of virus signature database 8594 (20130721) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com