I haven't seen an answer on this and I've also wondered about the setting for the AM Carrier Level under the Transmit tab of Setup.
Is there any advantage for setting the carrier to less than 100%? During weak signal conditions would having a higher percentage of power in the sidebands (compared to the carrier) result in more "talk power" for more intelligibility? And as Dave asked, what level is optimal? Bill - K7UOP -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of W6VOL Sent: Wednesday, February 16, 2011 12:17 PM To: [email protected] Subject: [FlexEdge] AM Operation >From the previous posts, it is my understanding that PowerSDR generates its AM modulation by generating a carrier, and then independently generating the upper & lower sidebands. In traditional high-level (plate) AM modulation schemes, variations in plate voltage, at audio rates, generated the sidebands, and caused the resultant inefficiencies between power levels in the carrier vs. sidebands. In AM operation with PowerSDR, is it necessary or suggested to maintain 100% carrier level during normal operation? If not, what carrier levels have proven optimal? Dave - W6VOL _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
