tag:blogger.com,1999:blog-3258590603195449959.post7907966923062028144..comments2024-03-28T17:32:01.872-04:00Comments on The Splatter: AGC for Digital Ops: Friend or Foe?VE3NRThttp://www.blogger.com/profile/03495664566826092253noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-3258590603195449959.post-58321923925525918222023-05-16T01:17:18.116-04:002023-05-16T01:17:18.116-04:00Hi
I just had a play with AGC turned on and off du...Hi<br />I just had a play with AGC turned on and off during QSO's. And from what I can see half of the singals are disapearing when AGC if of, so I don't think this will work for me.<br />Yeasu FT450D is my rig btw. <br />Greatings,<br />Andy de 2E0FHMGeohttps://www.blogger.com/profile/05655906716461810058noreply@blogger.comtag:blogger.com,1999:blog-3258590603195449959.post-30514399921089660092020-10-10T09:01:49.803-04:002020-10-10T09:01:49.803-04:00Sorry for the delays in approving the comments. Th...Sorry for the delays in approving the comments. There was no indication given to me that a comment was awaiting moderation. I will try to correct that.<br /><br />Chris VE3NRTVE3NRThttps://www.blogger.com/profile/03495664566826092253noreply@blogger.comtag:blogger.com,1999:blog-3258590603195449959.post-66089411652977716532020-08-20T14:31:26.860-04:002020-08-20T14:31:26.860-04:00I also use the filters in my K3. If the filters ar...I also use the filters in my K3. If the filters are early in the amplification chain then they can block adjacent signals. Once in a while the only way to complete a QSO has been centre the CW filter on the signal I'm receiving, to block out nearby transmitters on the same band. I always run with AGC off, generally without sound, using the attenuator and/or RF gain to keep the WSJT-X sound level out of the red.VE3NRThttps://www.blogger.com/profile/03495664566826092253noreply@blogger.comtag:blogger.com,1999:blog-3258590603195449959.post-58930342250186793682020-08-20T13:32:56.498-04:002020-08-20T13:32:56.498-04:00Very good article. AGC is now resolutely off for d...Very good article. AGC is now resolutely off for digi-modes.<br />73 de Guy G4DWV 4X1LTDrTeethhttps://www.blogger.com/profile/04888592741031805324noreply@blogger.comtag:blogger.com,1999:blog-3258590603195449959.post-34448792045651026102017-01-03T13:00:53.192-05:002017-01-03T13:00:53.192-05:00very interesting observations Brian. AGC does what...very interesting observations Brian. AGC does what its supposed to do but without understanding how and what it does makes its ability to use it difficult. I think for SSB or maybe even CW it doesnt matter if its fast , medium or slow but you have proven that it in digital modes its important. Thanks for sharingJohn VE3IPShttps://www.blogger.com/profile/18121015714592090401noreply@blogger.comtag:blogger.com,1999:blog-3258590603195449959.post-72060754105092204422017-01-02T13:28:12.047-05:002017-01-02T13:28:12.047-05:00Thanks for the great article, Brian. I've foun...Thanks for the great article, Brian. I've found much the same thing, and usually run with AGC off and tweak the RF gain to maintain the noise level at an appropriate level. On the waterfall, that looks much like your screen shots, with a blue (vs. black) background but not to much in the way of white dots. <br /><br />I still sometimes find the CW filter advantageous when a strong signal is close to the one I want. By strong that usually means someone within line of sight. It is a bit of a challenge getting the right centre frequency and bandwidth as the waterfall bandwidth exceeds the range of adjustment on the centre frequency. Fortunately I don't need to do that very often. WSJT-X has exceedingly good filtering but sometimes it is still necessary to separate very strong signals from very weak ones using IF filtering.VE3NRThttps://www.blogger.com/profile/03495664566826092253noreply@blogger.com