Bill, If the normal clamp-on chokes don't help, you may use double ferrite E-cores, wind several turns of cable and close together with ahdesive tape. See this: <http://kotisivu.dnainternet.net/ahti/sdr-1000/USBfilt.jpg>. This trick works well with my USB-to-PIO adapter proto.
Larrys advice may help even better. 73, Ahti OH2RZ On 16/04/06, Bill Nagle <[EMAIL PROTECTED]> wrote: > I am experiencing some severe r-f problems with the flex at any external > linear amp power above 100 watts carrier (AM). When the rf feedback starts > it causes a repeating "echo" in the listeners end receiver. The first echo is > the normal flex delay but then it builds on itself into multiple echos. > > > There is no problem with my other setup in the same location using an > ft1000d into a similar L4-b linear. > > I have used the TDK ZCAT2035 clamp on rf chokes profusely around all of > the cables in and out of the flex but the problem still exists. Does anyone > have a suggestion for a better choke than the tdk or other suggestions? > > Setup is delta44 on a 2.8gig w/512m ram. > > > Bill Nagle > [EMAIL PROTECTED] > > > > > _______________________________________________ > FlexRadio mailing list > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ > FlexRadio Homepage: http://www.flex-radio.com >
