Re: [Flexradio] DSP windows

2007-11-30 Thread Tom Thompson
Steve Kallal wrote: I've been playing with the Window selection on the DSP setup screen. I really can't tell any on the air difference between them in receive. There are very slight differences in the display. From past searches, I've noticed comments about differences in reception. In laymen's

Re: [Flexradio] DSP windows

2007-11-30 Thread Tim Ellison
McGwier Sent: Friday, November 30, 2007 12:52 AM To: Steve Kallal Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] DSP windows Steve Kallal wrote: I've been playing with the Window selection on the DSP setup screen. I really can't tell any on the air difference between them in receive

[Flexradio] DSP windows

2007-11-29 Thread Steve Kallal
I've been playing with the Window selection on the DSP setup screen. I really can't tell any on the air difference between them in receive. There are very slight differences in the display. From past searches, I've noticed comments about differences in reception. In laymen's terms, what do these

Re: [Flexradio] DSP windows

2007-11-29 Thread Bob Tracy
PROTECTED] Behalf Of Steve Kallal Sent: Thursday, November 29, 2007 10:42 AM To: flexradio@flex-radio.biz Subject: [Flexradio] DSP windows I've been playing with the Window selection on the DSP setup screen. I really can't tell any on the air difference between them in receive. There are very slight

Re: [Flexradio] DSP windows

2007-11-29 Thread Robert McGwier
Steve Kallal wrote: I've been playing with the Window selection on the DSP setup screen. I really can't tell any on the air difference between them in receive. There are very slight differences in the display. From past searches, I've noticed comments about differences in reception. In

[Flexradio] DSP Windows?

2006-12-23 Thread Ahti Aintila
Eric and the whole Software Team, Thank you for the great v. 1.8.0. Nothing to complain - and that's something that I usually don't do. Just a question this time: I followed the recommendation of Eric and Bob and let the PowerSDR build the mdb-file instead of transferring my previous one. I

Re: [Flexradio] DSP Windows?

2006-12-23 Thread Robert McGwier
Ahti: I do not know how this changed happened or when. Blackman Harris is now the default (svn 795). Blackman Harris window when used in the FIR design does indeed give the best out of band rejection BUT AT A COST. The Q goes down slightly (shape factor slightly worsens). There is no

Re: [Flexradio] DSP Windows?

2006-12-23 Thread Ahti Aintila
On 23/12/06, Robert McGwier [EMAIL PROTECTED] wrote: final filter design. It is my opinion that the Blackman-Harris filter design is optimal for our needs. Bob, Thank you. I have the same opinion, but wanted to be sure. I will change back to Blackman-Harris. Xmas! Ahti OH2RZ