See my comments below.
-Tim -----Original Message----- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Kevin Hobbs Sent: Monday, August 03, 2009 8:52 PM To: 'Flex Radio' Subject: [Flexradio] Birdie Hunting I went Birdie hunting tonight . found a few couldn't kill them. 1) I was getting tired of a Birdie on 50.125 and having to run ANF all the time . unplugged my wireless router (my Flex computer is cabled) and it went away . suggestions? [Tim] A "birdie" is not a real descriptive term for what you are seeing. That term usually describes RF signals internal to the radio like DDS spurs. What you are seeing is an actual RF signal; RFI from the wireless router. The fix? Turn off the wireless router :-) Sometimes a plethora of ferrite beads on all wires egressing the wireless router will fix it, but sometime not. It could be the switching power supply "wall wart" causing the noise. You can also try moving it to another location. The cheaper wireless routers are notorious for excessive spurious emissions. 2) I guess there is no way to get rid of the 9 Khz Birdie? Ie: Main RX 50.100, Sub RX gets a Birdie on 50.091 (oe 9 KHz below main RX Freq). Engaging SR does move the Birdie a bit. [Tim] This too is not a birdie, per se. This is the 0 Hz IF or "DC noise" of the A/D converter. You can't get rid of it. Refer to the following KB article. http://kc.flex-radio.com/KnowledgebaseArticle50176.aspx 73 de Kevin _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to telli...@itsco.com _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
