I used the 600 Hz FTDX101MP roofing filter tonight for RX success on 160m VK <>USA FST4-60 and FST4-300. My experience so far tells me it is beneficial to making the contact, It seems to double the gain on the RX signal in the window.
-----Original Message----- From: Claude Frantz [mailto:claude.fra...@bayern-mail.de] Sent: Thursday, 11 February 2021 12:09 AM To: wsjt-devel@lists.sourceforge.net Subject: Re: [wsjt-devel] WSJT-X v2.3.0 Oc42df. On 2/10/21 10:58 AM, Adrian wrote: Hi Adrian and all, > The top RTTY contesters have learned that -- they have abandoned dual > peak filters and now use 500 Hz bandwidth, narrowing only in the > presence of very strong signals in the passband. The bandwidth alone is not the whole story. Although I'm not a top RTTY contester, I have developed and used a constant delay discriminator over many years. You can find details here: http://dj0ot.darc.de/discri.pdf. The picture on the tuning scope display is here: http://dj0ot.darc.de. Best wishes, Claude (DJ0OT) _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
