[Flexradio] High SWR Problem...
While experimenting with a multiband wire antenna today, I ran into a problem. On one of the bands the radio reported high swr (I think this was on 10m) when I went into tune mode. PowerSDR then displayed a dialog indicating that the USB connection was no longer functional (can't remember the exact text). I seem to remember there were some problems reported recently where users were having USB disconnect problems but I don't remember them being related to reported high swr. It was necessary to go into setup and check the usb box again in order to get the radio to operate normally. This is the only time I've ever experienced any problems with the usb to parallel connection. Just wondering if this is something others have seen, before I file a bug report. Pete, N3EVL ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] High SWR Problem...
Funny you sent this today. I had this happen to me on 40m and 75m today. Only when I am running my CLipperton. This has not happened to me before. But I am using a new V1.6.3 and my 160m loop antenna came down saturday so had to put it back up and I shortned it about 8 feet. So now I may just have RF getting into the USB cable. Not sure if its related to what your seeing but same thing is going on. 73's Scott On Sun, 2006-10-15 at 20:23 -0400, Pete wrote: While experimenting with a multiband wire antenna today, I ran into a problem. On one of the bands the radio reported high swr (I think this was on 10m) when I went into tune mode. PowerSDR then displayed a dialog indicating that the USB connection was no longer functional (can't remember the exact text). I seem to remember there were some problems reported recently where users were having USB disconnect problems but I don't remember them being related to reported high swr. It was necessary to go into setup and check the usb box again in order to get the radio to operate normally. This is the only time I've ever experienced any problems with the usb to parallel connection. Just wondering if this is something others have seen, before I file a bug report. Pete, N3EVL ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] High SWR Problem...
You can bet it's just rf getting into the shack. Had the same thing happen to me. Took care of the high SWR, and voila! No more problems. You also might try ferrites on the cables. Ken WR5H -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Scott Sent: Sunday, October 15, 2006 7:49 PM To: [EMAIL PROTECTED]; Flex Group Subject: Re: [Flexradio] High SWR Problem... Funny you sent this today. I had this happen to me on 40m and 75m today. Only when I am running my CLipperton. This has not happened to me before. But I am using a new V1.6.3 and my 160m loop antenna came down saturday so had to put it back up and I shortned it about 8 feet. So now I may just have RF getting into the USB cable. Not sure if its related to what your seeing but same thing is going on. 73's Scott On Sun, 2006-10-15 at 20:23 -0400, Pete wrote: While experimenting with a multiband wire antenna today, I ran into a problem. On one of the bands the radio reported high swr (I think this was on 10m) when I went into tune mode. PowerSDR then displayed a dialog indicating that the USB connection was no longer functional (can't remember the exact text). I seem to remember there were some problems reported recently where users were having USB disconnect problems but I don't remember them being related to reported high swr. It was necessary to go into setup and check the usb box again in order to get the radio to operate normally. This is the only time I've ever experienced any problems with the usb to parallel connection. Just wondering if this is something others have seen, before I file a bug report. Pete, N3EVL ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] High SWR Problem...
If I key the rig with the mouse I have no issue. But if I key the rig with my footswitch it keys and unkeys the amp. I have put ferrit cores on both the footswitch and the amp circuit but doesn't seem to help. But I key with the mouse it all works fine. So the RF seems to be getting back into the SDR. On Sun, 2006-10-15 at 20:48 -0400, Scott wrote: Funny you sent this today. I had this happen to me on 40m and 75m today. Only when I am running my CLipperton. This has not happened to me before. But I am using a new V1.6.3 and my 160m loop antenna came down saturday so had to put it back up and I shortned it about 8 feet. So now I may just have RF getting into the USB cable. Not sure if its related to what your seeing but same thing is going on. 73's Scott On Sun, 2006-10-15 at 20:23 -0400, Pete wrote: While experimenting with a multiband wire antenna today, I ran into a problem. On one of the bands the radio reported high swr (I think this was on 10m) when I went into tune mode. PowerSDR then displayed a dialog indicating that the USB connection was no longer functional (can't remember the exact text). I seem to remember there were some problems reported recently where users were having USB disconnect problems but I don't remember them being related to reported high swr. It was necessary to go into setup and check the usb box again in order to get the radio to operate normally. This is the only time I've ever experienced any problems with the usb to parallel connection. Just wondering if this is something others have seen, before I file a bug report. Pete, N3EVL ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] High SWR Problem...
Ferrite can help in the case of common mode interference problems. I am using several turns of USB cable wound in double E-core ferrite (Grade N27) at BOTH ends of the cable. http://kotisivu.dnainternet.net/ahti/sdr-1000/USBfilt.jpg If you have no E-core, you may use big toroids with several (3-4) turns. The best solution, of course, would be proper groundings and routing of the cables, but that is usually more easily said than done. 73 Ahti OH2RZ On 16/10/06, Scott [EMAIL PROTECTED] wrote: If I key the rig with the mouse I have no issue. But if I key the rig with my footswitch it keys and unkeys the amp. I have put ferrit cores on both the footswitch and the amp circuit but doesn't seem to help. But I key with the mouse it all works fine. So the RF seems to be getting back into the SDR. On Sun, 2006-10-15 at 20:48 -0400, Scott wrote: Funny you sent this today. I had this happen to me on 40m and 75m today. Only when I am running my CLipperton. This has not happened to me before. But I am using a new V1.6.3 and my 160m loop antenna came down saturday so had to put it back up and I shortned it about 8 feet. So now I may just have RF getting into the USB cable. Not sure if its related to what your seeing but same thing is going on. 73's Scott On Sun, 2006-10-15 at 20:23 -0400, Pete wrote: While experimenting with a multiband wire antenna today, I ran into a problem. On one of the bands the radio reported high swr (I think this was on 10m) when I went into tune mode. PowerSDR then displayed a dialog indicating that the USB connection was no longer functional (can't remember the exact text). I seem to remember there were some problems reported recently where users were having USB disconnect problems but I don't remember them being related to reported high swr. It was necessary to go into setup and check the usb box again in order to get the radio to operate normally. This is the only time I've ever experienced any problems with the usb to parallel connection. Just wondering if this is something others have seen, before I file a bug report. Pete, N3EVL ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
