I looked at your website and the pics of your shack. Maybe cut the Flex loose from all the other stuff and drive it alone with either your desktop or better yet a laptop and see if the problem persists ..... Start at a lower power level and move up to full power ... Generally I am suggesting that you eliminate everything but the basics. Like troubleshooting pc's in the olden days ... remove all the extra cards and see if it boots then ..... -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Phil Theis Sent: Monday, October 10, 2011 9:13 PM To: [email protected] Subject: [FlexEdge] High Power and a 5000A I have 22 bands integrated into my 5000A and am just getting around to working high power on the lower bands. Have 1500 watts from 160m - 70cm and good power beyond that in frequency. I worked the PA QSO party this weekend and although I had a little rf in my audio system (another issue that will be addressed) I had some significant issues when running cw. On SSB things seemed to be ok, but on CW I got some funny things happening on occasion with the mode window in PowerSDR. It seemed like it would momentarily switch into SSB mode. But that was so quick, I couldn't tell for sure. More disturbing was reports of sounding like having ac hum on the line. I had reports of need to check my power supply. I'm sure it's not the power supply as I am on a battery isolated by a Power gate product for keeping the battery charged. I have the usual rf choke installed on the Firewire line as well as an additional ferrite core around that cable. All devices are grounded well to a heavy ground that circles the house. Using an ACOM 2000a amplifier. The amplifier is located approx 20 feet away from the Flex near the antenna switching frame where antennas are switched. I added a DX Engineering Ferrite isolation choke to the input of the amplifier but it did not make a difference. I'm thinking next steps would be to start adding ferrite and coils to the coax feeding the amplifier to keep rf from coming back toward the Flex. I am looking for other folks experience and suggestions for next steps in being able to run full power on CW. Like I said, SSB seems to work fine. Thanks for input. 73, Phil K3TUF _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
_______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
