If PowerSDR is off, the PC and SDR1K powered up and relays are clicking, then there is a probability that the relay clicks are causes by "phantom" voltages on the parallel card since all the parallel card is doing is "bit banging" the SDR1K.
If either the SDR1K and/or the PC are powered off, this should not happen. If the SDR-1000 is powered off, check to see if voltage is leaking through the switch. I don't see how the relays could click if there is no power on the SDR-1000 at all. -Tim -----Original Message----- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Edwin Marzan Sent: Wednesday, April 20, 2011 12:08 AM To: whit...@usa.net; hubb...@hotmail.com; flexradio@flex-radio.biz Subject: Re: [Flexradio] SDR-1000 makes clicking sound when not powered on butDC available How can one confirm if it was voltage spikes on the parallel port? Edwin Marzan AB2VW > Date: Tue, 19 Apr 2011 18:34:23 -0500 > From: whit...@usa.net > To: hubb...@hotmail.com; flexradio@flex-radio.biz > Subject: Re: [Flexradio] SDR-1000 makes clicking sound when not > powered on butDC available > > Hi Mike, > > The computer can be off, on, or disconnected - it makes no difference. > > 73, > > Lowell > K9LDW > > ------ Original Message ------ > Received: Tue, 19 Apr 2011 04:28:34 PM CDT > From: Mike WA8BXN <hubb...@hotmail.com> > To: <flexradio@flex-radio.biz>, "Lowell White" <whit...@usa.net> > Subject: Re: [Flexradio] SDR-1000 makes clicking sound when not > powered on butDC available > > > Is the radio connected to the computer when this happens? If so, > > what is running in the computer at the time? > > > > 73- Mike WA8BXN > > > > > > > > > > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kc.flexradio.com/ Homepage: > http://www.flexradio.com/ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
