[Flexradio] NR Settings
T he settings I use on my Flex 3000 are Taps 58, Delay 8, Gain 10, Leaks 1 . Your mileage may vary depending on the quality of the external speaker or headset used. I have used these settings since v.2.1.2 -- Ted, WB2LOU You cannot change history, but you can make history ! ___ 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/
Re: [Flexradio] NR Settings
Well, Terry, I sadly fear that you are doomed to more or less perpetual disappointment. 73 Lee K9WRU - Original Message - From: Terry Maurice To: Lee Mushel Cc: flexradio Sent: Monday, April 22, 2013 9:01 AM Subject: Re: [Flexradio] NR Settings Lee It is very true that one can encounter many kinds of noise on the various bands, but for the most part what I am trying to eliminate, or at least reduce, is the background hiss to bring out the signal from the noise. The hiss is relatively constant and can be lowered by using some kind of sampling and subtraction algorithm. The BHI does this successfully and can make weak signals much more readable. I would think that this should be achievable in the PowerSDR software as well with a little bit of further refining. I for one have no intention of fiddling with every signal I encounter setting taps and leakage, delay, etc. I work mostly weak signal VHF and UHF and as you know, signals can come and go very quickly depending on the changing propagation conditions. There is really not time to be adjusting this and that to tune in a signal. My bottom line is, if BHI have been relatively successful in this regard, then the Flex should be able to do likewise, especially so, considering all the other wonderful things they have done in software defined radio. Terry VE3XTM EN93un On 22/04/2013 00:02, Lee Mushel wrote: I just had a very strange thought. Do you suppose that if there was one "optimum" setting for all the processing controls it would still be necessary to have the full console graphic user interface? I would think we could do away with all of that adjustment business and just tune frequency and mode to our hearts content! I must be wasting a lot of time changing control values trying to, and often successfully at that, optimize signals under different circumstances. 73 Lee K9WRU -- VE3XTM EN93un "May the propagation be with you." ___ 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/
Re: [Flexradio] NR Settings
Lee It is very true that one can encounter many kinds of noise on the various bands, but for the most part what I am trying to eliminate, or at least reduce, is the background hiss to bring out the signal from the noise. The hiss is relatively constant and can be lowered by using some kind of sampling and subtraction algorithm. The BHI does this successfully and can make weak signals much more readable. I would think that this should be achievable in the PowerSDR software as well with a little bit of further refining. I for one have no intention of fiddling with every signal I encounter setting taps and leakage, delay, etc. I work mostly weak signal VHF and UHF and as you know, signals can come and go very quickly depending on the changing propagation conditions. There is really not time to be adjusting this and that to tune in a signal. My bottom line is, if BHI have been relatively successful in this regard, then the Flex should be able to do likewise, especially so, considering all the other wonderful things they have done in software defined radio. Terry *VE3XTM* EN93un On 22/04/2013 00:02, Lee Mushel wrote: I just had a very strange thought. Do you suppose that if there was one "optimum" setting for all the processing controls it would still be necessary to have the full console graphic user interface? I would think we could do away with all of that adjustment business and just tune frequency and mode to our hearts content! I must be wasting a lot of time changing control values trying to, and often successfully at that, optimize signals under different circumstances. 73 Lee K9WRU -- *VE3XTM* EN93un "May the propagation be with you." ___ 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/
Re: [Flexradio] NR Settings
Copied and pasted from a much earlier post, settings which seem a good reference point. All the best, Nige. Change PowerSDR settings after a new Database is loaded DSP settings NR ANF Buffers NB 40 68 409620 30 50 2048NB2 15 25 15 73's Bret WX7Y ___ 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/
Re: [Flexradio] NR Settings
I just had a very strange thought. Do you suppose that if there was one "optimum" setting for all the processing controls it would still be necessary to have the full console graphic user interface? I would think we could do away with all of that adjustment business and just tune frequency and mode to our hearts content! I must be wasting a lot of time changing control values trying to, and often successfully at that, optimize signals under different circumstances. 73 Lee K9WRU ___ 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/
Re: [Flexradio] NR Settings
Hi there Terry. Thank you very much for jumping in on this topic. So far I am with you in every way. I have been given several different opinions on values to use and will try them out soon. ref the external DSP unit, I was kind of hoping that the Flex would be able to perform any kind of DSP needed to accomplish the required NR. But, in all fairness, even my ole FT-1000 MP NR really stinks. I have yet to find one time where I thought it made the signal easier to copy, IMO. TU agn es 73. Oh, CU on 2m SSB hi-hi Gedas, W8BYA Gallery at http://gedas.cc Light travels faster than sound... This is why some people appear bright until you hear them speak. - Original Message - From: Terry Maurice To: W8BYA Cc: flexradio@flex-radio.biz Sent: Sunday, April 21, 2013 10:27 AM Subject: Re: [Flexradio] NR Settings Hi Gedas I have tried just about every combination of the NR parameters and have only succeeded in creating a more distorted and basically unlistenable sound. Reducing AGC-T is much more effective in reducing noise, but you also lose some sensitivity. With all the other sophisticated capabilities of the PowerSDR software, the NR is surely one of the more disappointing features. With the signal in the digital domain the software should be capable of much better noise reduction than is presently available. I have had much better luck with post rig processing, using a BHI Neim1031 Mark II processor. These units are made in the UK. http://www.bhi-ltd.com/index.php/products/noise-cancellation-products/noise-cancelling-in-line-modules/neim1031-mkii.html?view=item&layout=item This unit connects to the audio output of the Flex and is very successful in reducing background noise. It has 8 stepwise levels of noise reduction and a built in amplifier that is very effective. This same unit is available in the US through GAP Antennas and known as "Hear It" http://www.gapantenna.com/hearit_inline.htm This is the same unit as the BHI but with the controls oriented horizontally rather than vertically. It is a very effective unit especially for weak signal work. Terry On 20/04/2013 10:43, W8BYA wrote: I was playing around with the NR function on my 5000A (V2.5.3) for the first time trying different settings of Taps, Gain, Delay, & Leak. I was not having much luck blindly running numbers up and down. I was wondering if anyone had a source of information that they could point to that talked about what those various parameters were and how they might affect the overall NR function etc? Or possibly if someone has found a set of numbers that worked well for them in certain noisy instances that would be interesting to discussTU es 73 Gedas, W8BYA Gallery at http://gedas.cc Light travels faster than sound... This is why some people appear bright until you hear them speak. ___ 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/ -- VE3XTM EN93un "May the propagation be with you." ___ 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/
Re: [Flexradio] NR Settings
Bob had suggested these values to me earlier: Taps 64 Delay, the largest you can set it to Start gain 10 Start leakage 1 Gedas, W8BYA Gallery at http://gedas.cc Light travels faster than sound... This is why some people appear bright until you hear them speak. - Original Message - From: Ernest Garcia To: n4hy ; ve3...@execulink.com Cc: flexradio Sent: Sunday, April 21, 2013 7:27 PM Subject: Re: [Flexradio] NR Settings Well, Don't keep us in suspense... What are the values?73, Ernest - W4EG > Date: Sun, 21 Apr 2013 14:52:26 -0400 > From: n...@flex-radio.com > To: ve3...@execulink.com > CC: flexradio@flex-radio.biz > Subject: Re: [Flexradio] NR Settings > > I usually find a combination of AGC-T and NR produces best results. > > Bob > > > > Sent from my Verizon Wireless 4G LTE Smartphone > > Original message > From: Terry Maurice > Date: 04/21/2013 10:34 AM (GMT-05:00) > To: Bob McGwier > Cc: W8BYA ,"" > Subject: Re: [Flexradio] NR Settings > > Hi Bob > > I tried the settings you suggested but the sound was very distorted. Is there some other setting that I should be using in conjunction with your suggested settings? > > Terry > > > On 21/04/2013 09:32, Bob McGwier wrote: > Try these > > Taps 64 > Delay, the largest you can set it to > Start gain 10 > Start leakage 1 > > > Sent from my iPad > > On Apr 20, 2013, at 10:43 AM, "W8BYA" wrote: > > I was playing around with the NR function on my 5000A (V2.5.3) for the first time trying different settings of Taps, Gain, Delay, & Leak. I was not having much luck blindly running numbers up and down. I was wondering if anyone had a source of information that they could point to that talked about what those various parameters were and how they might affect the overall NR function etc? Or possibly if someone has found a set of numbers that worked well for them in certain noisy instances that would be interesting to discussTU es 73 > > Gedas, W8BYA > Gallery at http://gedas.cc > Light travels faster than sound... > This is why some people appear bright until you hear them speak. > ___ > 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/ > > > -- > VE3XTM EN93un > > "May the propagation be with you." > ___ > 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/
Re: [Flexradio] NR Settings
Well, Don't keep us in suspense... What are the values?73, Ernest - W4EG > Date: Sun, 21 Apr 2013 14:52:26 -0400 > From: n...@flex-radio.com > To: ve3...@execulink.com > CC: flexradio@flex-radio.biz > Subject: Re: [Flexradio] NR Settings > > I usually find a combination of AGC-T and NR produces best results. > > Bob > > > > Sent from my Verizon Wireless 4G LTE Smartphone > > Original message > From: Terry Maurice > Date: 04/21/2013 10:34 AM (GMT-05:00) > To: Bob McGwier > Cc: W8BYA ,"" > > Subject: Re: [Flexradio] NR Settings > > Hi Bob > > I tried the settings you suggested but the sound was very distorted. Is > there some other setting that I should be using in conjunction with your > suggested settings? > > Terry > > > On 21/04/2013 09:32, Bob McGwier wrote: > Try these > > Taps 64 > Delay, the largest you can set it to > Start gain 10 > Start leakage 1 > > > Sent from my iPad > > On Apr 20, 2013, at 10:43 AM, "W8BYA" wrote: > > I was playing around with the NR function on my 5000A (V2.5.3) for the first > time trying different settings of Taps, Gain, Delay, & Leak. I was not > having much luck blindly running numbers up and down. I was wondering if > anyone had a source of information that they could point to that talked about > what those various parameters were and how they might affect the overall NR > function etc? Or possibly if someone has found a set of numbers that worked > well for them in certain noisy instances that would be interesting to > discussTU es 73 > > Gedas, W8BYA > Gallery at http://gedas.cc > Light travels faster than sound... > This is why some people appear bright until you hear them speak. > ___ > 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/ > > > -- > VE3XTM EN93un > > "May the propagation be with you." > ___ > 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/
Re: [Flexradio] NR Settings
I usually find a combination of AGC-T and NR produces best results. Bob Sent from my Verizon Wireless 4G LTE Smartphone Original message From: Terry Maurice Date: 04/21/2013 10:34 AM (GMT-05:00) To: Bob McGwier Cc: W8BYA ,"" Subject: Re: [Flexradio] NR Settings Hi Bob I tried the settings you suggested but the sound was very distorted. Is there some other setting that I should be using in conjunction with your suggested settings? Terry On 21/04/2013 09:32, Bob McGwier wrote: Try these Taps 64 Delay, the largest you can set it to Start gain 10 Start leakage 1 Sent from my iPad On Apr 20, 2013, at 10:43 AM, "W8BYA" wrote: I was playing around with the NR function on my 5000A (V2.5.3) for the first time trying different settings of Taps, Gain, Delay, & Leak. I was not having much luck blindly running numbers up and down. I was wondering if anyone had a source of information that they could point to that talked about what those various parameters were and how they might affect the overall NR function etc? Or possibly if someone has found a set of numbers that worked well for them in certain noisy instances that would be interesting to discussTU es 73 Gedas, W8BYA Gallery at http://gedas.cc Light travels faster than sound... This is why some people appear bright until you hear them speak. ___ 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/ -- VE3XTM EN93un "May the propagation be with you." ___ 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/
Re: [Flexradio] NR Settings
The PowerSDR Console is a bit cluttered but it would be nice if one could adjust the settings on the fly while listening to the noise by using a set of sliders. One could then save these settings into memory to be recalled whenever the offending noise is present... > Date: Sun, 21 Apr 2013 10:34:07 -0400 > From: ve3...@execulink.com > To: n...@flex-radio.com > CC: flexradio@flex-radio.biz > Subject: Re: [Flexradio] NR Settings > > Hi Bob > > I tried the settings you suggested but the sound was very distorted. Is > there some other setting that I should be using in conjunction with your > suggested settings? > > Terry > > > On 21/04/2013 09:32, Bob McGwier wrote: > > Try these > > > > Taps 64 > > Delay, the largest you can set it to > > Start gain 10 > > Start leakage 1 > > > > > > Sent from my iPad > > > > On Apr 20, 2013, at 10:43 AM, "W8BYA" wrote: > > > >> I was playing around with the NR function on my 5000A (V2.5.3) for the > >> first time trying different settings of Taps, Gain, Delay, & Leak. I was > >> not having much luck blindly running numbers up and down. I was wondering > >> if anyone had a source of information that they could point to that talked > >> about what those various parameters were and how they might affect the > >> overall NR function etc? Or possibly if someone has found a set of > >> numbers that worked well for them in certain noisy instances that would be > >> interesting to discussTU es 73 > >> > >> Gedas, W8BYA > >> Gallery at http://gedas.cc > >> Light travels faster than sound... > >> This is why some people appear bright until you hear them speak. > >> ___ > >> 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/ > > > > -- > *VE3XTM* EN93un > > "May the propagation be with you." > ___ > 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/
Re: [Flexradio] NR Settings
Hi Bob I tried the settings you suggested but the sound was very distorted. Is there some other setting that I should be using in conjunction with your suggested settings? Terry On 21/04/2013 09:32, Bob McGwier wrote: Try these Taps 64 Delay, the largest you can set it to Start gain 10 Start leakage 1 Sent from my iPad On Apr 20, 2013, at 10:43 AM, "W8BYA" wrote: I was playing around with the NR function on my 5000A (V2.5.3) for the first time trying different settings of Taps, Gain, Delay, & Leak. I was not having much luck blindly running numbers up and down. I was wondering if anyone had a source of information that they could point to that talked about what those various parameters were and how they might affect the overall NR function etc? Or possibly if someone has found a set of numbers that worked well for them in certain noisy instances that would be interesting to discussTU es 73 Gedas, W8BYA Gallery at http://gedas.cc Light travels faster than sound... This is why some people appear bright until you hear them speak. ___ 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/ -- *VE3XTM* EN93un "May the propagation be with you." ___ 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/
Re: [Flexradio] NR Settings
Hi Gedas I have tried just about every combination of the NR parameters and have only succeeded in creating a more distorted and basically unlistenable sound. Reducing AGC-T is much more effective in reducing noise, but you also lose some sensitivity. With all the other sophisticated capabilities of the PowerSDR software, the NR is surely one of the more disappointing features. With the signal in the digital domain the software should be capable of much better noise reduction than is presently available. I have had much better luck with post rig processing, using a BHI Neim1031 Mark II processor. These units are made in the UK. http://www.bhi-ltd.com/index.php/products/noise-cancellation-products/noise-cancelling-in-line-modules/neim1031-mkii.html?view=item&layout=item This unit connects to the audio output of the Flex and is very successful in reducing background noise. It has 8 stepwise levels of noise reduction and a built in amplifier that is very effective. This same unit is available in the US through GAP Antennas and known as "Hear It" http://www.gapantenna.com/hearit_inline.htm This is the same unit as the BHI but with the controls oriented horizontally rather than vertically. It is a very effective unit especially for weak signal work. Terry On 20/04/2013 10:43, W8BYA wrote: I was playing around with the NR function on my 5000A (V2.5.3) for the first time trying different settings of Taps, Gain, Delay, & Leak. I was not having much luck blindly running numbers up and down. I was wondering if anyone had a source of information that they could point to that talked about what those various parameters were and how they might affect the overall NR function etc? Or possibly if someone has found a set of numbers that worked well for them in certain noisy instances that would be interesting to discussTU es 73 Gedas, W8BYA Gallery at http://gedas.cc Light travels faster than sound... This is why some people appear bright until you hear them speak. ___ 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/ -- *VE3XTM* EN93un "May the propagation be with you." ___ 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/
Re: [Flexradio] NR Settings
Try these Taps 64 Delay, the largest you can set it to Start gain 10 Start leakage 1 Sent from my iPad On Apr 20, 2013, at 10:43 AM, "W8BYA" wrote: > I was playing around with the NR function on my 5000A (V2.5.3) for the first > time trying different settings of Taps, Gain, Delay, & Leak. I was not > having much luck blindly running numbers up and down. I was wondering if > anyone had a source of information that they could point to that talked about > what those various parameters were and how they might affect the overall NR > function etc? Or possibly if someone has found a set of numbers that worked > well for them in certain noisy instances that would be interesting to > discussTU es 73 > > Gedas, W8BYA > Gallery at http://gedas.cc > Light travels faster than sound... > This is why some people appear bright until you hear them speak. > ___ > 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] NR Settings
I was playing around with the NR function on my 5000A (V2.5.3) for the first time trying different settings of Taps, Gain, Delay, & Leak. I was not having much luck blindly running numbers up and down. I was wondering if anyone had a source of information that they could point to that talked about what those various parameters were and how they might affect the overall NR function etc? Or possibly if someone has found a set of numbers that worked well for them in certain noisy instances that would be interesting to discussTU es 73 Gedas, W8BYA Gallery at http://gedas.cc Light travels faster than sound... This is why some people appear bright until you hear them speak. ___ 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] NR settings for SSB
I've been playing around with the NR settings in 1.4.5p3 to see if I could obtain a reduction in noise without the audio sounding as if its coming from the end of a long pipe. I find the default settings Taps 65, Delay 50, Gain 50, far too aggressive - it just appears to reduce everything to sort of echoey mush. Adjusting everything down to 40, 25,25 makes some improvement but not nearly enough for my ears. I'd be interested to know what settings others are using for NR. What I'm really after is a slight reduction in noise (I believe its essential to still hear some band noise) and the audio signal to be left untouched. As an aside, I connected a BHI NEIM1031 (GAP Hear It In Line Module ) in line with the speakers I use, and on the level 4 setting (15dB) it produces a significant reduction in background/band noise with no reduction in the intelligibility of the audio. I do realise of course that this approach is not the same as reducing the noise before it gets anywhere near the speakers as the SDR software does. Anyway, would be interested in any comments on the settings being used by others. 73 to all Trevor G0KTN
