It sounds like low voltage on the USB port. I assume you are using the internal one on the computer mobo?
If so. You can try to get an external USB bridge that is powered from an external source (wall wart) and see if that takes care of the problem. RF getting in the USB cable will do it too. Putting good ferrite beads on both ends usually takes care of that problem. Or, you can just go back to the parallel cable. -Tim, W4TME ----- -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kurt Vangsness Sent: Monday, March 05, 2007 12:02 AM To: flexradio@flex-radio.biz Subject: [Flexradio] USB Interface Problems I recently acquired a USB Interface cable from another Flexer and am having some problems with my SDR-1000 when using it and want to make sure it isn't some cockpit error or something (I don't think there is any problem with the USB Interface cable). My SDR-1000 (early 1W 3 board stack with RFE and case added) has been working well with an PCI add-on parallel port adaptor. I installed the USB driver from the Flex-Radio web download page and selected the USB adaptor checkbox in setup. At first, things worked well - then I switched the preamp settings and the noise floor dropped way down and all signals disappeared. Changing the preamp to various settings had little effect. I then turned the PowerSDR console off and on several times and finally normal operation was restored. Subsequent changes to the preamp setting worked normally and did not result in this same behavior. Listened to various bands for a while and decided to try transmitting. Plugged my UB802 preamp in and PowerSDR reported that the USB connection was gone. I exited PowerSDR console and then noticed a dialog box that stated that the USB interface had been disabled (box came up under the PowerSDR console). Decided to reboot my computer in case something was messed up in the USB connection. When the PC was back up, started PowerSDR again (after power cycling the SDR-1000). Went into Setup and checked USB Interface box again. Turned on PowerSDR, no signals on the panadaptor and now the noise floor is at -65 dBm (normally was around -120 for the band I was on)! I can hear relays clicking when I go from Standby to On in PowerSDR but no impact on display. Exited PowerSDR and restarted. Now it is working fine again... Any ideas? 73, Kurt KC9FOL _______________________________________________ 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 Knowledge Base: http://kb.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 Knowledge Base: http://kb.flex-radio.com/
