Hi Jay. I do have mid to upper range sound card, the processor shows that it is running at about 65 to 80 %, so I assume that is ok. I also notice the latency, about .5 sec and the noise floor does seem high, not a problem on 80 however. I am interested to see what it sounds like on 10. the filter is great as is the spectrum display, just the poor audio, and I am not one opf the audio nuts, so it must be really bad. I know the Flex takes a lot of computer, I could use a little better video card as the waterfall does slow down on full screen. just seems weird when I can watch a DVD with good audio. Bernie----- Original Message ----- From: "Jay Bromley" <[email protected]> To: "Discussion of AM Radio in the Amateur Service" <[email protected]> Sent: Wednesday, February 10, 2010 4:00 PM Subject: Re: [AMRadio] sdr-iq
> Hi Bernie, > I am running a Perseus SDR receiver with 2.5 GHz Asus quad core CPU and 8 > MB > of ram. The OS is Win 7 64 bit. No echo here unless I am sync up to the > Icom receiver and trying to use them both at the same time. There is a > little bit of latency with the SDR. The sound is very good and the Sync > detector is the best I have used so far. It's a little on the noisy side > with no signals. A hint was given on the reflector to bump up the AGC > threshold and that seems help some. Also a suggestion from Robert, W0VMC, > was to use a better sound card instead of the internal sound card that is > on > the motherboard. The Perseus doesn't use the sound card for demodulation, > but for audio out. In a way I wish the receiver had it's own line level > out > instead of using the computer's sound card. A better sound card with more > ram should off load the CPU, but not sure that would help the latency > much? > I am mainly wanting to lower the noise floor even more if that is > possible. > The spectrum scope and waterfall are very useful. I got another program > called HF span that makes it into a nice 40 MHz spectrum analyzer. > Overall > a very powerful box. > > 73 de w5jay/jay.. > > -------------------------------------------------- > From: "Bernie Doran" <[email protected]> > Sent: Wednesday, February 10, 2010 12:02 PM > To: "Discussion of AM Radio in the Amateur Service" > <[email protected]> > Subject: [AMRadio] sdr-iq > >> I purchased an SDR-iQ about five weeks ago and while it performs great in >> a >> number of areas it seems to be poor in the audio demodulation, at least >> on >> AM, I am getting what sounds like a low level echo and a general >> artificial >> quality of sound, my 75A2 sounds much better and that certainly is not >> good >> quality audio. it is difficult to copy a moderate level AM signal. the >> computer plays DVDs and CDs fine and sounds good. I talked to the store >> that >> I purchased it from and they said they have heard this before and that I >> should not expect it to sound like a VT receiver!!!!! that was a shock, >> what did I buy it for?. computer is a single core 2.8 gig, it shows it >> running at about %75. any one else use these things? or have experience >> with >> the Flex 5000a? Bernie >> >> >> ______________________________________________________________ >> Our Main Website: http://www.amfone.net >> AMRadio mailing list >> Searchable Archives: http://www.mail-archive.com/[email protected]/ >> List Rules (must read!): http://w5ami.net/amradiofaq.html >> List Home: http://mailman.qth.net/mailman/listinfo/amradio >> Post: [email protected] >> To unsubscribe, send an email to [email protected] with >> the word unsubscribe in the message body. >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/[email protected]/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: [email protected] > To unsubscribe, send an email to [email protected] with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: [email protected] To unsubscribe, send an email to [email protected] with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
