Re: [Flexradio] Question about NB1 and NB2, not working as I expect it to
Mark: NB1 and NB2 are intended to aid mitigation of impulsive noise. NR is intended to mitigate white noise. The hump does not fit what this (or most any other radio) can do in its signal processing. Bob N4HY On Tue, Feb 19, 2013 at 4:11 PM, Mark Lunday wd4...@triad.rr.com wrote: I don't normally use these.because of what happens. I have local conditions that are quiet (-130 dBm, But I do have a few RFI sources (still to be located) which generate a 20 kHz wide hilltop of noise up to -115 dBm. The noise looks like a camel hump on the panadapter, and is usually on the CW portion of the 15 meter band down low, and the 12 meter CW portion as well. --- snip --- Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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/ -- Bob McGwier, N4HY Flexradio Systems, Inc. Consultant ___ 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] Question about NB1 and NB2, not working as I expect it to
Mark: The camel hump, as you call it, is the characteristic noise signature of a switching power supply. You will be much better off eliminating that at its source than you will be getting poor Bob to write a noise reduction routine to reduce it after it has already trashed the signal you want to listen to. The usual suspects are: The wall wart running your WiFi base station. The wall wart running your cable modem. The rectangular in-line power supply running your laptop. The rectangular in-line power supply running your computer monitors. Any other wall warts or rectangular in-line power supplies running stuff in your house. There is an article in this month's QST describing how the little power supply running the LED under-cabinet lighting in the kitchen was destroying one ham's reception. Good luck, --- Graham / KE9H == On Tue, Feb 19, 2013 at 3:11 PM, Mark Lunday wd4...@triad.rr.com wrote: I don't normally use these.because of what happens. I have local conditions that are quiet (-130 dBm, But I do have a few RFI sources (still to be located) which generate a 20 kHz wide hilltop of noise up to -115 dBm. The noise looks like a camel hump on the panadapter, and is usually on the CW portion of the 15 meter band down low, and the 12 meter CW portion as well. When I turn on NB1 to curb that camel hump because I want to hear weak signals that are affected in that 20 kHz segment, the entire noise floor drops including that hump, but so do the signals to the point of being unreadable. And if there is a strong signal above -115 dBm anywhere in the band, the noise floor pulses to that signal.especially if it is CW. Which renders the NB1 effect useless. I see a similar but less pronounced behavior when using NB2.the hump drops a bit but the noise floor and signals do not drop (good, but not as good in eliminating the noise with NB1).but the entire band pulses if any CW signals above -115 dBm are present (obviously not good). Pre-amp has no impact. Resetting database has no impact. Using Flex 3000, SDR 2.5.3. I have noticed this in earlier versions of SDR, which is why I did not use the features. But it has me wondering about it.and I would like to use it. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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] DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close
Most people don't know that units like the Efratom FRK FM the laser to keep it on frequency in a simple control loop and this can cause issues depending on your use case. The other thing that most don't realize is their is a difference between stability and accuracy. You'd ideally like both to be great for some things but what most people From a convenience, power, etc I certainly prefer my GPSDO's. Ettus makes a plug in unit for their SDR's and Flex 6700's will have provision for inclusion of the GPSDO. Now if anyone has a spare working Hy Maser... I would like to recommend a paper/design for DIY-ish GPSDO. James Miller, G3RUH, polymath extraordinaire did this work: http://www.jrmiller.demon.co.uk/projects/ministd/manual.pdf Bob N4HY On Mon, Feb 18, 2013 at 10:39 PM, Dave rocke...@gmail.com wrote: Now a RbO that is GPSDO is the cat's meow. Like my Trak 9100. Makes a nice time server on the network as well. Also have a couple of older Efratom units. Dave wo2x On 2/18/2013 10:35 PM, Richard Solomon wrote: I also have both (two RbO's and 4 GPSDO's). I'll take the GPSDO any day. 73, Dick, W1KSZ __**_ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/**mailman/listinfo/flexradio_**flex-radio.bizhttp://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/**flexradio%40flex-radio.biz/http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ -- Bob McGwier, N4HY Flexradio Systems, Inc. Consultant ___ 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] Question about NB1 and NB2, not working as I expect it to
Amen to all of this. On Wed, Feb 20, 2013 at 10:56 AM, Graham Haddock gra...@flexradio.comwrote: Mark: The camel hump, as you call it, is the characteristic noise signature of a switching power supply. You will be much better off eliminating that at its source than you will be getting poor Bob to write a noise reduction routine to reduce it after it has already trashed the signal you want to listen to. The usual suspects are: The wall wart running your WiFi base station. The wall wart running your cable modem. The rectangular in-line power supply running your laptop. The rectangular in-line power supply running your computer monitors. Any other wall warts or rectangular in-line power supplies running stuff in your house. There is an article in this month's QST describing how the little power supply running the LED under-cabinet lighting in the kitchen was destroying one ham's reception. Good luck, --- Graham / KE9H == On Tue, Feb 19, 2013 at 3:11 PM, Mark Lunday wd4...@triad.rr.com wrote: I don't normally use these.because of what happens. I have local conditions that are quiet (-130 dBm, But I do have a few RFI sources (still to be located) which generate a 20 kHz wide hilltop of noise up to -115 dBm. The noise looks like a camel hump on the panadapter, and is usually on the CW portion of the 15 meter band down low, and the 12 meter CW portion as well. When I turn on NB1 to curb that camel hump because I want to hear weak signals that are affected in that 20 kHz segment, the entire noise floor drops including that hump, but so do the signals to the point of being unreadable. And if there is a strong signal above -115 dBm anywhere in the band, the noise floor pulses to that signal.especially if it is CW. Which renders the NB1 effect useless. I see a similar but less pronounced behavior when using NB2.the hump drops a bit but the noise floor and signals do not drop (good, but not as good in eliminating the noise with NB1).but the entire band pulses if any CW signals above -115 dBm are present (obviously not good). Pre-amp has no impact. Resetting database has no impact. Using Flex 3000, SDR 2.5.3. I have noticed this in earlier versions of SDR, which is why I did not use the features. But it has me wondering about it.and I would like to use it. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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/ -- Bob McGwier, N4HY Flexradio Systems, Inc. Consultant ___ 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] Question about NB1 and NB2, not working as I expect it to
Why is it my Flex 5000 picks up the camel hump in 160 meters but my Hallicrafters S-76 does not. Same antenna. It is the wifi/modem --- On Wed, 2/20/13, Graham Haddock gra...@flexradio.com wrote: Mark: The camel hump, as you call it, is the characteristic noise signature of a switching power supply. You will be much better off eliminating that at its source than you will be getting poor Bob to write a noise reduction routine to reduce it after it has already trashed the signal you want to listen to. The usual suspects are: The wall wart running your WiFi base station. The wall wart running your cable modem. The rectangular in-line power supply running your laptop. The rectangular in-line power supply running your computer monitors. Any other wall warts or rectangular in-line power supplies running stuff in your house. There is an article in this month's QST describing how the little power supply running the LED under-cabinet lighting in the kitchen was destroying one ham's reception. Good luck, --- Graham / KE9H == On Tue, Feb 19, 2013 at 3:11 PM, Mark Lunday wd4...@triad.rr.com wrote: I don't normally use these.because of what happens. I have local conditions that are quiet (-130 dBm, But I do have a few RFI sources (still to be located) which generate a 20 kHz wide hilltop of noise up to -115 dBm. The noise looks like a camel hump on the panadapter, and is usually on the CW portion of the 15 meter band down low, and the 12 meter CW portion as well. When I turn on NB1 to curb that camel hump because I want to hear weak signals that are affected in that 20 kHz segment, the entire noise floor drops including that hump, but so do the signals to the point of being unreadable. And if there is a strong signal above -115 dBm anywhere in the band, the noise floor pulses to that signal.especially if it is CW. Which renders the NB1 effect useless. I see a similar but less pronounced behavior when using NB2.the hump drops a bit but the noise floor and signals do not drop (good, but not as good in eliminating the noise with NB1).but the entire band pulses if any CW signals above -115 dBm are present (obviously not good). Pre-amp has no impact. Resetting database has no impact. Using Flex 3000, SDR 2.5.3. I have noticed this in earlier versions of SDR, which is why I did not use the features. But it has me wondering about it.and I would like to use it. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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/ ___ 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] Question about NB1 and NB2, not working as I expect it to
Thanks, all. I will do some research to find the power supply source. The interesting thing is that it is NOT present right now, 11:00 AM local. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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] Question about NB1 and NB2, not working as I expect it to
Ahh, I spoke too soon. The noise IS there, I was looking in the wrong place. It moves. It's there, 21095 to 21115, and slowly moving up in frequency, about 1 Khz a minute. And 21975 to 21995, approaching the CW portion of the 15 meter band. And 21225 to 21245. Almost square waveform with three small peaks.one at each end and one in the middle. I tried unplugging all the wall wart switching PS, no luck yet. On 12 meters, the noise is more spread out, over 30 kHz and not as strong. It's there on 10, but spread out over 40 kHz. Present on 17 meters, 15 kHz wide square with two peaks. On 20 it is 10 kHz wide, but weaker than on 17. No sign on 30 or 40, but I will check tonight. Will keep searching in the house for the source. What confounds me is that the source moves. If it was stationary it would make more sense to me. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.com From: Mark Lunday [mailto:wd4...@triad.rr.com] Sent: Wednesday, February 20, 2013 11:17 AM To: 'Bob McGwier'; 'Graham Haddock' Cc: 'FlexRadio@flex-radio.biz' Subject: RE: [Flexradio] Question about NB1 and NB2, not working as I expect it to Thanks, all. I will do some research to find the power supply source. The interesting thing is that it is NOT present right now, 11:00 AM local. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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] Question about NB1 and NB2, not working as I expect it to
Additional data - when I disconnect the antenna input, all is quiet. On the hex beam, the noise is more pronounced when pointing west. When I switch to the dipole that is running E/W and broadside N/S, the noise drops by 10 dBm. The HiZ 4 square receiving array has more noise when pointing NW directions and is lowest when pointed SE. Unfortunately, there are no houses within 500 feet to NW. There ARE high voltage power lines, but that does not make sense to have a point source when the lines run from NW to N and NE of the house. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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] SSB transmit has 800 Hz tone, no audio
After working several SSB stations today, suddenly I get no output on SSB. I hooked up another rig to monitor the output of the Flex transmission, and all I hear is an 800 Hz tone. A database reset fixes the problem, but I want to find out what happened and save myself the 2 hours of recreating all of the database settings. Anyone else ever seen anything like this? Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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] SSB transmit has 800 Hz tone, no audio
I think it may be something I did, reset database did NOT fix the problem. Changing mics did not fix the problem. Basically, I have no power out on SSB. Investigation continues... Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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] SSB transmit has 800 Hz tone, no audio
OK, I did factory database reset. I changed microphones. No change I am going through the audio alignment process, and there is no audio coming from the first stage at the audio mixer level. No meter movement. http://helpdesk.flexradio.com/entries/21938803-tx-audio-setup-procedure-by-w 1aex-rob I had to move the MIC level on the SDR console from 35 to 58. This is with the audio mixer set at maximum. I am able to get back to normal doing this, but I did not have this problem before, and 58 seems awfully high to have the mixer. The audio does not sound distorted, but something is amiss. I will open a support case Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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] Question about NB1 and NB2, not working as I expect it to
Mark, I had the same problem about 2 years ago on 40m. I ultimately tracked it down by walking up and down the street with the FLEX-1500 powered by a gel cell, my laptop, and a 3' diameter magnetic loop tuned to the area of 40m visited by the 'hump'. The loop has an extremely sharp null perpendicular to the plane of the loop, so it made it easy to locate the source quickly. The source ended up being a power supply in a neighbor's desktop computer, located about 300 feet away. I begged him to let me buy him a high quality replacement power supply, and said that I'd install it for him. He kindly accepted my offer, and the issue was resolved. The offending power supply was reduced to about 10% of it's original height, to assure that it could never be returned to service by anyone who may have pulled it from the trash. Good luck w/ your investigations. 73, Dale WA8SRA On 2/20/2013 1:19 PM, Mark Lunday wrote: Additional data - when I disconnect the antenna input, all is quiet. On the hex beam, the noise is more pronounced when pointing west. When I switch to the dipole that is running E/W and broadside N/S, the noise drops by 10 dBm. The HiZ 4 square receiving array has more noise when pointing NW directions and is lowest when pointed SE. Unfortunately, there are no houses within 500 feet to NW. There ARE high voltage power lines, but that does not make sense to have a point source when the lines run from NW to N and NE of the house. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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/
[Flexradio] FIXED - RE: SSB transmit has 800 Hz tone, no audio
Resolved. Operator error compounded by operator error mixed in with more operator error. Lessons learned: 1. Never ASS-U-ME. 2. It's always the simple things 3. Murphy is alive and well 4. The Flex Radio message boards are a source of INCREDIBLE assistance and customer support from the company AND other users 5. FlexRadio is HIGHLY responsive Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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] VAC setup
Folks I have had my 1500 for a while now and want to get adventurous... I am going to buy VAC and have read a little on the subject but cannot work out if I can also use VAC to send ordinary voice audio to the PC speakers rather than plugging in a set at the flex box itself. The articles I have seen only talk about the VAC going to fldigi etc for digi modes... I would like to do both really. Can someone please point me in the direction of further reading ... or a quick fix... Many thanks Graham G4NMD ___ 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] Noise blanker not working a expected
Mark, Have the same problem here. It took months to find it as it was not always on. I started throwing breakers to isolate it. It came from the barn where the only thing running was a battery maintainance charger in the boat made by Guest. Seems when the charger was on and charging all was ok. Only when the charger reached a full charge in maintaince mode that the circuity made the moving hump that had almost a buzzing noise. It was most noticeable on 75 meters. The barn is 300feet from the shack and made of metal with the doors usualy shut. . gl Paul, wa3qpx Wed, 20 Feb 2013 12:00:04 -0600 flexradio-requ...@flex-radio.biz wrote: Send FlexRadio mailing list submissions to flexradio@flex-radio.biz To subscribe or unsubscribe via the World Wide Web, visit http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz or, via email, send a message with subject or body 'help' to flexradio-requ...@flex-radio.biz You can reach the person managing the list at flexradio-ow...@flex-radio.biz When replying, please edit your Subject line so it is more specific than Re: Contents of FlexRadio digest... Today's Topics: 1. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Jerry Flanders) 2. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ONor really close (John Stuart) 3. Question about NB1 and NB2,not working as I expect it to (Mark Lunday) 4. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Richard Solomon) 5. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Patrick Greenlee) 6. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Richard Solomon) 7. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Brian Lloyd) 8. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (William H. Fite) 9. Re: Question about NB1 and NB2, not working as I expect it to (Bob McGwier) 10. Re: Question about NB1 and NB2, not working as I expect it to (Graham Haddock) 11. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Bob McGwier) 12. Re: Question about NB1 and NB2, not working as I expect it to (Bob McGwier) 13. Re: Question about NB1 and NB2,not working as I expect it to (Burt) 14. Re: Question about NB1 and NB2,not working as I expect it to (Mark Lunday) 15. Re: Question about NB1 and NB2,not working as I expect it to (Mark Lunday) -- Message: 1 Date: Tue, 19 Feb 2013 14:59:33 -0500 From: Jerry Flanders jefland...@comcast.net To: Brian Lloyd brian-wb6...@lloyd.com Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close Message-ID: mailman.7.1361303973.9393.flexradio_flex-radio@flex-radio.biz Content-Type: text/plain; charset=us-ascii; format=flowed I think the most important thing to remember in the Rb vs GPSDO debate is that without some other standard like a GPSDO or better to compare to or calibrate against, you never know that your Rb oscillator is actually on-freq. The LPRO-101 has an adjustment to vary its freq. How would I know that adjustment pot didn't get jostled during shipment? Lastly, since we know the early Rb units were subject to failure due to aging of the Rb tube, how would I know the one I was considering has much life remaining ? Bottom line - I would HAVE to be able to check/calibrate it, but against what primary reference? Without a GPSDO to compare the Rb to, I think buying a Rb one would be a crap-shoot. After thinking it through, I skipped the Rb step and went straight to the GPSDO. Jerry W4UK At 11:47 PM 2/18/2013, Brian Lloyd wrote: On Mon, Feb 18, 2013 at 7:35 PM, Richard Solomon w1...@earthlink.netwrote: I also have both (two RbO's and 4 GPSDO's). I'll take the GPSDO any day. This is not a, which one is better, question. It is a question of what is the job you are trying to do. It is useful to understand the differences. Certainly the long-term stability of the GPSDO is better because the reference oscillator is always being corrected back to the correct time, i.e. long term number of cycles. But in the short term, variations in the GPS satellite geometry can cause the GPSDO to exhibit short-term frequency errors. Of course, long-term these are corrected back out but if one was comparing one would notice small short-term variations in the frequency of the GPSDO while the RbO showed more stability. So the question is, which is more important? Of course, could could have a GPS-disciplined Rb reference. Now you get the best of both worlds, i.e. dead-nuts accurate long term stability with outstanding short-term stability. And the other thing that many people seem to forget
Re: [Flexradio] Noise blanker not working a expected
Yes-- the industry standard multi-stage OEM battery maintenance charger used in the RV industry is terrible when it goes into the float mode. Mine drove me crazy, and I found it by making a loop and hooking it into my IC-7000 on a LiPo battery and walking around. Replaced it with a better unit and it is clean as a whistle in all charge stages. Steve WA7DUH On 2/20/2013 1:02 PM, wa3...@atlanticbb.net wrote: Mark, Have the same problem here. It took months to find it as it was not always on. I started throwing breakers to isolate it. It came from the barn where the only thing running was a battery maintainance charger in the boat made by Guest. Seems when the charger was on and charging all was ok. Only when the charger reached a full charge in maintaince mode that the circuity made the moving hump that had almost a buzzing noise. It was most noticeable on 75 meters. The barn is 300feet from the shack and made of metal with the doors usualy shut. . gl Paul, wa3qpx Wed, 20 Feb 2013 12:00:04 -0600 flexradio-requ...@flex-radio.biz wrote: Send FlexRadio mailing list submissions to flexradio@flex-radio.biz To subscribe or unsubscribe via the World Wide Web, visit http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz or, via email, send a message with subject or body 'help' to flexradio-requ...@flex-radio.biz You can reach the person managing the list at flexradio-ow...@flex-radio.biz When replying, please edit your Subject line so it is more specific than Re: Contents of FlexRadio digest... Today's Topics: 1. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Jerry Flanders) 2. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ONor really close (John Stuart) 3. Question about NB1 and NB2,not working as I expect it to (Mark Lunday) 4. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Richard Solomon) 5. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Patrick Greenlee) 6. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Richard Solomon) 7. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Brian Lloyd) 8. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (William H. Fite) 9. Re: Question about NB1 and NB2, not working as I expect it to (Bob McGwier) 10. Re: Question about NB1 and NB2, not working as I expect it to (Graham Haddock) 11. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Bob McGwier) 12. Re: Question about NB1 and NB2, not working as I expect it to (Bob McGwier) 13. Re: Question about NB1 and NB2,not working as I expect it to (Burt) 14. Re: Question about NB1 and NB2,not working as I expect it to (Mark Lunday) 15. Re: Question about NB1 and NB2,not working as I expect it to (Mark Lunday) -- Message: 1 Date: Tue, 19 Feb 2013 14:59:33 -0500 From: Jerry Flanders jefland...@comcast.net To: Brian Lloyd brian-wb6...@lloyd.com Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close Message-ID: mailman.7.1361303973.9393.flexradio_flex-radio@flex-radio.biz Content-Type: text/plain; charset=us-ascii; format=flowed I think the most important thing to remember in the Rb vs GPSDO debate is that without some other standard like a GPSDO or better to compare to or calibrate against, you never know that your Rb oscillator is actually on-freq. The LPRO-101 has an adjustment to vary its freq. How would I know that adjustment pot didn't get jostled during shipment? Lastly, since we know the early Rb units were subject to failure due to aging of the Rb tube, how would I know the one I was considering has much life remaining ? Bottom line - I would HAVE to be able to check/calibrate it, but against what primary reference? Without a GPSDO to compare the Rb to, I think buying a Rb one would be a crap-shoot. After thinking it through, I skipped the Rb step and went straight to the GPSDO. Jerry W4UK At 11:47 PM 2/18/2013, Brian Lloyd wrote: On Mon, Feb 18, 2013 at 7:35 PM, Richard Solomon w1...@earthlink.netwrote: I also have both (two RbO's and 4 GPSDO's). I'll take the GPSDO any day. This is not a, which one is better, question. It is a question of what is the job you are trying to do. It is useful to understand the differences. Certainly the long-term stability of the GPSDO is better because the reference oscillator is always being corrected back to the correct time, i.e. long term number of cycles. But in the short term, variations in the GPS satellite geometry can cause the GPSDO to exhibit short-term frequency errors. Of course, long-term these are corrected back out but if one was comparing one would notice small short-term variations in the
Re: [Flexradio] SSB transmit has 800 Hz tone, no audio
If you are using the balanced input on the back, you need to change the mixer to select balanced (on database reset it defaults to unbalanced). (Of course, make sure all mute is not selected!) Check if you have (or need) the Mic Boost on. The rear balanced input (if you use it) is a fairly high impedance, and needs a fairly high audio level (0 to +4 dBu). Make sure none of the later audio stages are shut down (every stage should be close mid-range). See if any of this helps. GL es 73 dan k0dan -Original Message- From: Mark Lunday Sent: February 20, 2013 01:51 PM To: flexra...@yahoogroups.com ; FlexRadio@flex-radio.biz Subject: Re: [Flexradio] SSB transmit has 800 Hz tone, no audio OK, I did factory database reset. I changed microphones. No change I am going through the audio alignment process, and there is no audio coming from the first stage at the audio mixer level. No meter movement. http://helpdesk.flexradio.com/entries/21938803-tx-audio-setup-procedure-by-w 1aex-rob I had to move the MIC level on the SDR console from 35 to 58. This is with the audio mixer set at maximum. I am able to get back to normal doing this, but I did not have this problem before, and 58 seems awfully high to have the mixer. The audio does not sound distorted, but something is amiss. I will open a support case Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.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] Noise blanker not working a expected
What is a known/documented good/clean battery maintenance system? I have two different brands here and they're both big noise generators. WalWarts not so much. Most of the time I'd rather face dead mowers and tractors than face the electrical noise that comes out of my barn. 73 dan k0dan -Original Message- From: Steve Sterling Sent: February 20, 2013 03:39 PM To: flexradio@flex-radio.biz Subject: Re: [Flexradio] Noise blanker not working a expected Yes-- the industry standard multi-stage OEM battery maintenance charger used in the RV industry is terrible when it goes into the float mode. Mine drove me crazy, and I found it by making a loop and hooking it into my IC-7000 on a LiPo battery and walking around. Replaced it with a better unit and it is clean as a whistle in all charge stages. Steve WA7DUH On 2/20/2013 1:02 PM, wa3...@atlanticbb.net wrote: Mark, Have the same problem here. It took months to find it as it was not always on. I started throwing breakers to isolate it. It came from the barn where the only thing running was a battery maintainance charger in the boat made by Guest. Seems when the charger was on and charging all was ok. Only when the charger reached a full charge in maintaince mode that the circuity made the moving hump that had almost a buzzing noise. It was most noticeable on 75 meters. The barn is 300feet from the shack and made of metal with the doors usualy shut. . gl Paul, wa3qpx Wed, 20 Feb 2013 12:00:04 -0600 flexradio-requ...@flex-radio.biz wrote: Send FlexRadio mailing list submissions to flexradio@flex-radio.biz To subscribe or unsubscribe via the World Wide Web, visit http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz or, via email, send a message with subject or body 'help' to flexradio-requ...@flex-radio.biz You can reach the person managing the list at flexradio-ow...@flex-radio.biz When replying, please edit your Subject line so it is more specific than Re: Contents of FlexRadio digest... Today's Topics: 1. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Jerry Flanders) 2. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ONor really close (John Stuart) 3. Question about NB1 and NB2,not working as I expect it to (Mark Lunday) 4. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Richard Solomon) 5. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Patrick Greenlee) 6. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Richard Solomon) 7. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Brian Lloyd) 8. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (William H. Fite) 9. Re: Question about NB1 and NB2, not working as I expect it to (Bob McGwier) 10. Re: Question about NB1 and NB2, not working as I expect it to (Graham Haddock) 11. Re: DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close (Bob McGwier) 12. Re: Question about NB1 and NB2, not working as I expect it to (Bob McGwier) 13. Re: Question about NB1 and NB2,not working as I expect it to (Burt) 14. Re: Question about NB1 and NB2,not working as I expect it to (Mark Lunday) 15. Re: Question about NB1 and NB2,not working as I expect it to (Mark Lunday) -- Message: 1 Date: Tue, 19 Feb 2013 14:59:33 -0500 From: Jerry Flanders jefland...@comcast.net To: Brian Lloyd brian-wb6...@lloyd.com Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] DIY 10 MHz sources for putting Flex 5000A DEAD ON orreally close Message-ID: mailman.7.1361303973.9393.flexradio_flex-radio@flex-radio.biz Content-Type: text/plain; charset=us-ascii; format=flowed I think the most important thing to remember in the Rb vs GPSDO debate is that without some other standard like a GPSDO or better to compare to or calibrate against, you never know that your Rb oscillator is actually on-freq. The LPRO-101 has an adjustment to vary its freq. How would I know that adjustment pot didn't get jostled during shipment? Lastly, since we know the early Rb units were subject to failure due to aging of the Rb tube, how would I know the one I was considering has much life remaining ? Bottom line - I would HAVE to be able to check/calibrate it, but against what primary reference? Without a GPSDO to compare the Rb to, I think buying a Rb one would be a crap-shoot. After thinking it through, I skipped the Rb step and went straight to the GPSDO. Jerry W4UK At 11:47 PM 2/18/2013, Brian Lloyd wrote: On Mon, Feb 18, 2013 at 7:35 PM, Richard Solomon w1...@earthlink.netwrote: I also have both (two RbO's and 4 GPSDO's). I'll take the GPSDO any day. This is not a, which one is better, question. It is a question of what is the job you are trying to do. It is useful to
[Flexradio] KPA500 no power out and a solution
Powered up the 5000A today and my KPA500 amp to contact EA9/DL2RNS on 30M. I wanted to use 200W as I only have a SteppIR vertical and like the extra edge that the amp gives in plieup. BTW I had used the amp in the CW contest this past weekend almost constantly and had no issues. Picked a frequency above him as he was running split and hit transmit only to find that the output was 15W with the amp in OPER. Hmm, that's weird. Put it on a dummy load and I was getting no output from the amp on any band, just the drive power. Oh thats just great, the amp must have failed I. Turned the amp off and found that the rig was putting out a max of 82w on any band but it was only putting out 41w on 6M. Not having a clue as to what was wrong I reset the PSDR DB and now everthing is ok. Very weird that it would cause this out of the blue but at least I know what to do if happens again. 73 ZaCK N8fnR ___ 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] Distortion on my signal.
Hello all, I just recently bought a 3000 refurb unit. I am having trouble getting it to sound clean. I tried my Yaesu hand mic, a Electro Voice RE20, and my Headset. All with the same result. The reports I get from my friends are a little distortion on the peaks of my signal. That it just does not sound right. My peaks can be at -25dbm and it is still present. I set this up by setting the Mic gain at 35% adjusting the Mixer setting until it was about -15db on the mic meter reading. Then adjusting the EQ level. I have it running around -10 to -15 dbm on my peaks. When I listen to the audio using the monitor in PSDR it sounds clean. I can run 20 watts out of the radio or 700 watts out of my amp and it does not change. Anyone have any suggestions? Best Regards, DanKM6CQ -- KM6CQ Dan Baker www.km6cq.com @danielbaker QSL via LoTW, eQSL, or Direct. ___ 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/
