Re: [Flexradio] fan noise on a 3000
Been there, done that... The Silenx are only 8CFM, the original fans are 23CFM (Cubic Feet per Min). These will not cool the finals enough and may damage the rig. Get yourself a set of ThermalTake Duramax 6 fans. These have a higher output than the original fans but less than half the noise (7db less noise). Duramax Fans can move 30.3CFM of air at noise level 32dBA See link: http://www.thermaltakeusa.com/Product.aspx?C=1190 http://www.thermaltakeusa.com/Product.aspx?C=1190ID=2062 ID=2062 The original fans can move 23.39 CFM of air but at a Noise Level of 38.65dBA See link: http://www.newpowersupply.com/top_motor_df126010bh_60x10mm_5300rpm_dc_12v_0_ Regards, Ray EI3GD ___ 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] fan noise on a 3000
The Thermaltake ISGC Fan 8 is even a bit better... 18.2 dba at 24.4 CFM 73 Greg On 12/31/2012 12:49 PM, Ray percival wrote: Been there, done that... The Silenx are only 8CFM, the original fans are 23CFM (Cubic Feet per Min). These will not cool the finals enough and may damage the rig. Get yourself a set of ThermalTake Duramax 6 fans. These have a higher output than the original fans but less than half the noise (7db less noise). Duramax Fans can move 30.3CFM of air at noise level 32dBA See link: http://www.thermaltakeusa.com/Product.aspx?C=1190 http://www.thermaltakeusa.com/Product.aspx?C=1190ID=2062 ID=2062 The original fans can move 23.39 CFM of air but at a Noise Level of 38.65dBA See link: http://www.newpowersupply.com/top_motor_df126010bh_60x10mm_5300rpm_dc_12v_0_ Regards, Ray EI3GD ___ 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] fan noise on a 3000
Is there an equivalent fan for the 5000? Tnx 73, Ed WB0VHF Sent from my HTC - Reply message - From: Greg a...@cablespeed.com Date: Mon, Dec 31, 2012 14:59 Subject: [Flexradio] fan noise on a 3000 To: flexradio@flex-radio.biz The Thermaltake ISGC Fan 8 is even a bit better... 18.2 dba at 24.4 CFM 73 Greg On 12/31/2012 12:49 PM, Ray percival wrote: Been there, done that... The Silenx are only 8CFM, the original fans are 23CFM (Cubic Feet per Min). These will not cool the finals enough and may damage the rig. Get yourself a set of ThermalTake Duramax 6 fans. These have a higher output than the original fans but less than half the noise (7db less noise). Duramax Fans can move 30.3CFM of air at noise level 32dBA See link: http://www.thermaltakeusa.com/Product.aspx?C=1190 http://www.thermaltakeusa.com/Product.aspx?C=1190ID=2062 ID=2062 The original fans can move 23.39 CFM of air but at a Noise Level of 38.65dBA See link: http://www.newpowersupply.com/top_motor_df126010bh_60x10mm_5300rpm_dc_12v_0_ Regards, Ray EI3GD ___ 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] fan noise on a 3000
Ed, The FLEX-5000A has a large diameter, slow speed fan. Consequently, it is virtually silent already. 73, Ray, K9DUR http://k9dur.info ___ 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] fan noise on a 3000
Unfortunately the Thermaltake ISGC Fan 8 is too big at 80mm and you need 60mm Regards, Ray EI3GD ___ 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] fan noise on a 3000
Have a new 3000, also had one when they first came out, this one seems to have a louder fan noise level, than the older one. Has anyone taken a look at the fan assembly to see if the bearings are serviceable . thanks dale wt4t ___ 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] fan noise on a 3000
Dale, I have owned a Flex-3000 for about three years now, although it does not see much use as I later purchased a Flex-5000 as my primary rig. I found the fans in the 3K very noisy and replaced them with two Silenx IXP3416 iXtrema Pro Fans. The cost from Amazon was about $25.00 and well worth it in my opinion! Ed, K0KC From: y...@aol.com y...@aol.com To: FlexRadio@flex-radio.biz Sent: Sunday, December 30, 2012 3:54 PM Subject: [Flexradio] fan noise on a 3000 Have a new 3000, also had one when they first came out, this one seems to have a louder fan noise level, than the older one. Has anyone taken a look at the fan assembly to see if the bearings are serviceable . thanks dale wt4t ___ 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] fan noise on a 3000
Dale. I felt like you, and even tried the Silenx fans. They were certainly wonderfully quiet, but looking at the rig temperature (CNTL-SHIFT-I) shows the rig gets hotter with the quiet fans. Apparently they don't move enough air. Rigs hate heat, and I hate noise, but rigs hate heat more :) If anyone tries new fans, I suggest you document rig temps transmitting into a dummy load, then compare results using the new fans. So... my original fans went back into the 3000. Noisy again - but cooler. Tim, WK4U On Sun, Dec 30, 2012 at 3:54 PM, y...@aol.com y...@aol.com wrote: Have a new 3000, also had one when they first came out, this one seems to have a louder fan noise level, than the older one. Has anyone taken a look at the fan assembly to see if the bearings are serviceable . thanks dale wt4t ___ 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] Fan noise
Ahh On 12/8/11, Ron Kolarik rkola...@neb.rr.com wrote: Ayup Ron K0IDT - Original Message - From: Ross Stenberg ross.stenb...@charter.net To: flexradio@flex-radio.biz Sent: Thursday, December 08, 2011 5:30 PM Subject: Re: [Flexradio] Fan noise I think that Burt wins the award for brevity. On 12/8/2011 11:09 AM, Burt wrote: No keep going, I am one of your greatest fans Burt Brevity is the soul of wit-Shakespeare If you are too big for a small job, you are too small for a big job. ___ 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] Fan noise
Me thinks it's time to move on to another subject so we can beat it death... :)John W8JJW -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of William H. Fite Sent: Friday, December 09, 2011 11:48 AM To: Ron Kolarik Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] Fan noise Ahh On 12/8/11, Ron Kolarik rkola...@neb.rr.com wrote: Ayup Ron K0IDT - Original Message - From: Ross Stenberg ross.stenb...@charter.net To: flexradio@flex-radio.biz Sent: Thursday, December 08, 2011 5:30 PM Subject: Re: [Flexradio] Fan noise I think that Burt wins the award for brevity. On 12/8/2011 11:09 AM, Burt wrote: No keep going, I am one of your greatest fans Burt Brevity is the soul of wit-Shakespeare If you are too big for a small job, you are too small for a big job. ___ 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/ - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.1873 / Virus Database: 2102/4669 - Release Date: 12/09/11 ___ 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] Fan noise
Noisome might be a better description as others on the reflector are probably sick of hearing Duane and me go back and forth on this topic. On 12/8/11, Ross Stenberg ross.stenb...@charter.net wrote: Sounds kind of noisy to me (pun intended) Well I really don't like headphones for one, and more importantly they make it hard to listen to 4 or 5 radios at one time. And a key to listening to that many radios at one time is having the ability to spatially orientate the various audio sources, headphones and audio combiners simply don't allow for that. ___ 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] Fan noise
On Thu, Dec 8, 2011 at 7:01 AM, William H. Fite omni...@gmail.com wrote: Noisome might be a better description as others on the reflector are probably sick of hearing Duane and me go back and forth on this topic. Oh, not at all William. I am enjoying it. As a result I have learned new and better ways to press the delete key quickly! ;-) All kidding aside, you and Duane are probably feeling a bit edgy. I recommend a glass of egg nog to raise your blood Chistmas-spirit level. Then you and Duane can share in that warm camaraderie that we hams share. After all, we *are* one, big, happy, caring, harmonious family! Ah, the joys of night-time 75m fellowship! -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 br...@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ___ 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] Fan noise
No keep going, I am one of your greatest fans Burt Brevity is the soul of wit-Shakespeare If you are too big for a small job, you are too small for a big job. --- On Thu, 12/8/11, William H. Fite omni...@gmail.com wrote: Noisome might be a better description as others on the reflector are probably sick of hearing Duane and me go back and forth on this topic. On 12/8/11, Ross Stenberg ross.stenb...@charter.net wrote: Sounds kind of noisy to me (pun intended) Well I really don't like headphones for one, and more importantly they make it hard to listen to 4 or 5 radios at one time. And a key to listening to that many radios at one time is having the ability to spatially orientate the various audio sources, headphones and audio combiners simply don't allow for that. ___ 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] Fan noise
Another solution is to develop tinnitus. After well over three decades in industrial control, much being spent around paper machines, I have a constant ringing in my ears that completely swamps any PC or radio fan noise. I just turn the speaker volume up or wear headphones. 73 Alf NU8I Scottsdale AZ DM43an ___ 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] Fan noise
As you know, tinnitus bothers the heck of some people while others (like me) just ignore it. Interestingly, one of the standard treatments for tinnitus in people who are seriously impaired by it is to mask it with white noise. Once again, this demonstrates the extent to which such matters are psychologically as well as physiologically determined. Bottom line: If you think it is going to bother you, it is going to bother you. I recommend eggnog therapy in all such cases. Two or three cups and you won't give a damn whether the fans are noisy or not. Another two or three and you won't care if the fans are even running or not. Your gear, however, will care... Bill On 12/8/11, Alfred Green n...@cox.net wrote: Another solution is to develop tinnitus. After well over three decades in industrial control, much being spent around paper machines, I have a constant ringing in my ears that completely swamps any PC or radio fan noise. I just turn the speaker volume up or wear headphones. 73 Alf NU8I Scottsdale AZ DM43an ___ 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] Fan noise
Gentlemen, I think we have enough opinions on the subject of fan noise now so that conclusions can be drawn and we can move on to other subjects like 1500 CW problems, what microphone to use and several others of your choice. I will admit to being fascinated by some of the comments since I have had no ability to hear anything above 14 kHz since qualifying with the U.S. Rifle, caliber 30 M-1, Sir some 55 years ago. I have always marveled at the quietness of the 3000 and 5000A. I can detect no fan noise whatever. But I am certain that with some 13 fan-containing devices in the shack there must be some detectable sound. But I've decided that the most reasonable course of action to take is to ignore the possibility since such worry would be as silly and pointless as concentrating on similar noise coming from the XYL that I've been married to for some 49 years! I find this reflector to be most entertaining and informative. 73 Lee K9WRU - Original Message - From: William H. Fite omni...@gmail.com To: Alfred Green n...@cox.net Cc: flexradio@flex-radio.biz Sent: Thursday, December 08, 2011 12:31 PM Subject: Re: [Flexradio] Fan noise As you know, tinnitus bothers the heck of some people while others (like me) just ignore it. ___ 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] Fan noise
On Thu, Dec 8, 2011 at 12:04 PM, Lee Mushel herbe...@centurytel.net wrote: Gentlemen, I think we have enough opinions on the subject of fan noise now so that conclusions can be drawn and we can move on to other subjects like 1500 CW problems, what microphone to use and several others of your choice. Don't forget egg nog recipes! I will admit to being fascinated by some of the comments since I have had no ability to hear anything above 14 kHz since qualifying with the U.S. Rifle, caliber 30 M-1, Sir some 55 years ago. I have always marveled at the quietness of the 3000 and 5000A. I can detect no fan noise whatever. But I am certain that with some 13 fan-containing devices in the shack there must be some detectable sound. But I've decided that the most reasonable course of action to take is to ignore the possibility since such worry would be as silly and pointless as concentrating on similar noise coming from the XYL that I've been married to for some 49 years! You know, there is a cure for that! I find this reflector to be most entertaining and informative. Absolutely! (Where is that glass of egg nog ...) -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 br...@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ___ 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] Fan noise
Tinnitus is actually your ear - brain compo compensation for the quiet. The system wants some sound. How about plain bourbon in place of eggnog? Much simpler. Bob In a message dated 12/8/2011 1:31:44 P.M. Eastern Standard Time, omni...@gmail.com writes: As you know, tinnitus bothers the heck of some people while others (like me) just ignore it. Interestingly, one of the standard treatments for tinnitus in people who are seriously impaired by it is to mask it with white noise. Once again, this demonstrates the extent to which such matters are psychologically as well as physiologically determined. Bottom line: If you think it is going to bother you, it is going to bother you. I recommend eggnog therapy in all such cases. Two or three cups and you won't give a damn whether the fans are noisy or not. Another two or three and you won't care if the fans are even running or not. Your gear, however, will care... Bill On 12/8/11, Alfred Green n...@cox.net wrote: Another solution is to develop tinnitus. After well over three decades in industrial control, much being spent around paper machines, I have a constant ringing in my ears that completely swamps any PC or radio fan noise. I just turn the speaker volume up or wear headphones. 73 Alf NU8I Scottsdale AZ DM43an ___ 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] Fan noise
Because if you drink eggnog, as opposed to straight bourbon you get all the nourishment you need and you don't have to take time out from drinking to eat food. (Contesters understand this phenomenon--XYL delivering sandwichs and sodas, coffee can under the desk--but the remainder of the civilized world does not.) On 12/8/11, k8...@aol.com k8...@aol.com wrote: Tinnitus is actually your ear - brain compo compensation for the quiet. The system wants some sound. How about plain bourbon in place of eggnog? Much simpler. Bob In a message dated 12/8/2011 1:31:44 P.M. Eastern Standard Time, omni...@gmail.com writes: As you know, tinnitus bothers the heck of some people while others (like me) just ignore it. Interestingly, one of the standard treatments for tinnitus in people who are seriously impaired by it is to mask it with white noise. Once again, this demonstrates the extent to which such matters are psychologically as well as physiologically determined. Bottom line: If you think it is going to bother you, it is going to bother you. I recommend eggnog therapy in all such cases. Two or three cups and you won't give a damn whether the fans are noisy or not. Another two or three and you won't care if the fans are even running or not. Your gear, however, will care... Bill On 12/8/11, Alfred Green n...@cox.net wrote: Another solution is to develop tinnitus. After well over three decades in industrial control, much being spent around paper machines, I have a constant ringing in my ears that completely swamps any PC or radio fan noise. I just turn the speaker volume up or wear headphones. 73 Alf NU8I Scottsdale AZ DM43an ___ 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] Fan noise
Are you supposed to add alcohol to the egg nog? --- On Thu, 12/8/11, William H. Fite omni...@gmail.com wrote: Bottom line: If you think it is going to bother you, it is going to bother you. I recommend eggnog therapy in all such cases. Two or three cups and you won't give a damn whether the fans are noisy or not. Another two or three and you won't care if the fans are even running or not. Your gear, however, will care... Bill ___ 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] Fan noise
We've already added lots but, sure, pour in some more. On Thu, Dec 8, 2011 at 4:36 PM, Burt k1...@yahoo.com wrote: Are you supposed to add alcohol to the egg nog? --- On Thu, 12/8/11, William H. Fite omni...@gmail.com wrote: Bottom line: If you think it is going to bother you, it is going to bother you. I recommend eggnog therapy in all such cases. Two or three cups and you won't give a damn whether the fans are noisy or not. Another two or three and you won't care if the fans are even running or not. Your gear, however, will care... Bill ___ 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] Fan noise
Brian : Because of the US Rifle, caliber 30, M1, Sir ! - Fan noise doesn't seem to be a problem with me. We didn't even think about ear plugs. 73 W8LO Larry - Original Message - From: Brian Lloyd brian-wb6...@lloyd.com To: Lee Mushel herbe...@centurytel.net Cc: flexradio@flex-radio.biz Sent: Thursday, December 08, 2011 2:25 PM Subject: Re: [Flexradio] Fan noise On Thu, Dec 8, 2011 at 12:04 PM, Lee Mushel herbe...@centurytel.net wrote: Gentlemen, I think we have enough opinions on the subject of fan noise now so that conclusions can be drawn and we can move on to other subjects like 1500 CW problems, what microphone to use and several others of your choice. Don't forget egg nog recipes! I will admit to being fascinated by some of the comments since I have had no ability to hear anything above 14 kHz since qualifying with the U.S. Rifle, caliber 30 M-1, Sir some 55 years ago. I have always marveled at the quietness of the 3000 and 5000A. I can detect no fan noise whatever. But I am certain that with some 13 fan-containing devices in the shack there must be some detectable sound. But I've decided that the most reasonable course of action to take is to ignore the possibility since such worry would be as silly and pointless as concentrating on similar noise coming from the XYL that I've been married to for some 49 years! You know, there is a cure for that! I find this reflector to be most entertaining and informative. Absolutely! (Where is that glass of egg nog ...) -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 br...@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ___ 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] Fan noise
The egg nog just adds some color to the alcohol so it's easier to tell when your glass is empty. Tim N9PUZ On 12/8/2011 3:36 PM, Burt wrote: Are you supposed to add alcohol to the egg nog? --- On Thu, 12/8/11, William H. Fiteomni...@gmail.com wrote: Bottom line: If you think it is going to bother you, it is going to bother you. I recommend eggnog therapy in all such cases. Two or three cups and you won't give a damn whether the fans are noisy or not. Another two or three and you won't care if the fans are even running or not. Your gear, however, will care... Bill ___ 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] Fan noise
I think that Burt wins the award for brevity. On 12/8/2011 11:09 AM, Burt wrote: No keep going, I am one of your greatest fans Burt Brevity is the soul of wit-Shakespeare If you are too big for a small job, you are too small for a big job. ___ 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] Fan noise
On Thu, Dec 8, 2011 at 3:30 PM, Ross Stenberg ross.stenb...@charter.netwrote: I think that Burt wins the award for brevity. Mmmm, egg nog. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 br...@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ___ 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] Fan noise
Ayup Ron K0IDT - Original Message - From: Ross Stenberg ross.stenb...@charter.net To: flexradio@flex-radio.biz Sent: Thursday, December 08, 2011 5:30 PM Subject: Re: [Flexradio] Fan noise I think that Burt wins the award for brevity. On 12/8/2011 11:09 AM, Burt wrote: No keep going, I am one of your greatest fans Burt Brevity is the soul of wit-Shakespeare If you are too big for a small job, you are too small for a big job. ___ 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] Fan noise
I too am annoyed by ambient noise, especially fans.. ALL fans make noise, some just less than others.. Once you have your other ambient noise sources quieted down enough in the shack then the 5K's fan is very noticeable. Here's my tale... After building a new house and of course a new shack space (it uses up about 1/3 of the basement). One requirement was to make the new shack be as quiet as possible. And also to make the equipment be easily accessible, both front *and* back. So for the 16' long equipment wall I used shelving that attaches to a wall. But the wall that it is attached to is essentially just 2x6 studs that the shelf support rails are screwed into. The spaces between the studs is completely open for easy backside access to all of the equipment located on all the shelves. So to control the noise sources I hung sound barrier curtains about 2+ feet beyond the open equipment wall. That leaves a about a 2 foot wide alley to get access to the equipment backsides. So everything that makes noise goes on the other side of that sound barrier wall from the operating area on some rather industrial strength free standing shelves (4 levels 30x72). This shelf unit is perpendicular to the equipment/sound barrier walls, so it has both front and back side easy access as well. So basically all of the items that have fans in them, including the 5K is put on those shelves. So the noisy side of the sound barrier curtain I consider to be my equipment room, it also has the furnace an few other household equipment in there as well. The KVM and various other control/support cables are then routed through the sound barrier wall to the monitors and all the other no-fan radios/equipment sitting on the shelves in the operator's space. To further suppress sound in the equipment room I've hung some strategically placed sound absorbing panels to reduce the sound level that the barrier panels have to deal with. I still have some ways to go to further suppress the noise sources, but it is already pretty good. As I was increasing the level of sound suppression I'd find more and more items that I did not previously notice as being noise producers, and they soon became irritatingly obvious. The 5K was one of them, so it (along with its blue death ray LED) got banished to the equipment room, I can now only hear its relays click as I change bands. The operator's space is now quiet enough that I now notice the white noise hiss from some of my powered speakers. Most of my linear power supplies are abundantly obvious sources of noise now too (still thinking about how those will get moved to the equipment room too). I'm even being irritated by one of the CCFL LCD monitor back-light ballasts in one of my monitors. I have two identical monitors, one makes very little noise, the other is a lot noisier... Maybe some LED back lit monitors will eventually fix that. Suppressing the other household noises is now increasingly front and center for what needs attention. Things like lagging the heating ducts and to do something more with the basement ceiling.. So I'm enjoying my fairly quiet shack. Reminds of my early days in ham radio when I didn't have much equipment at all, not to mention any equipment that could even make fan noise :).. Duane N9DG --- On Wed, 12/7/11, Burt k1...@yahoo.com wrote: I am not really concerned about a mike picking up the fan, I am concerned about me being bugged by it. I do not even like the fan on my computer. I never heard a fan on the 5000. It has a fan? ___ 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] Fan noise
WHAT!! SAY AGAIN!! EXCUSE ME! I too am annoyed by ambient noise, especially fans.. ALL fans make noise, some just less than others.. Once you have your other ambient noise sources quieted down enough in the shack then the 5K's fan is very noticeable. Here's my tale... ___ 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] Fan noise
Y'know, Duane, rather than going to all that trouble, you could just get some quiet fans. Noctua (a German company, I don't think they have much presence in the amateur radio market) makes low speed (~1200 rpm) fans in 80mm, 120mm, and 140mm sizes. They are about $25 each and they make less noise than any fan I have heard. I use two of them on my CPU heat exchanger and three more in the case. Those five fans all running at once make less noise than the single 80mm fan that came on the stock AMD CPU cooler. They run on 12VDC but have no PWM capability so the only way to slow them down (should one want to) would be to reduce the voltage. Here's another point, possibly one that you don't want to hear. The human brain has an incredibly ability to filter out noise, especially constant noise that varies little in loudness, frequency, or aural characteristics. Unfortunately, to get that mechanism to work, you have to deliberately stop paying conscious attention to the sounds that are bothersome to you. So long as an individual sits down and consciously listens to see how much noise the fan is making, and then reminds onesself how disturbing it is, the brain will conclude that the individual doesn't WANT that sound filtered and will not do so. In other words, so long as you listen for background noise, you'll hear some. One can end up chasing one's tail in this regard. Good luck, Bill (who spent lots of time as a research assistant working on sensation and perception studies in an anechoic chamber) On 12/7/11, Ross Stenberg ross.stenb...@charter.net wrote: WHAT!! SAY AGAIN!! EXCUSE ME! I too am annoyed by ambient noise, especially fans.. ALL fans make noise, some just less than others.. Once you have your other ambient noise sources quieted down enough in the shack then the 5K's fan is very noticeable. Here's my tale... ___ 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] Fan noise
--- On Wed, 12/7/11, William H. Fite omni...@gmail.com wrote: Y'know, Duane, rather than going to all that trouble, you could just get some quiet fans. Noctua (a German company, I don't think they have much presence in the amateur radio market) makes low speed (~1200 rpm) fans in 80mm, 120mm, and 140mm sizes. They are about $25 each and they make less noise than any fan I have heard. snip I wonder how many of those fans I'd need to quiet down the furnace blowers ;).. The reality is that a lot of equipment you buy today will have fans in them. So rather than trying address each one individually piecemeal, I decided it was easier to make an environment to put them in, and then put myself in another quieter environment that is separate. Also consider that a fair amount of that new equipment you buy doesn't lend itself to fan mods, so that approach is rather limited in effectiveness. So I took an overall systems design view of how to address the noise rather than trying to do it with each piece of gear individually. Here's another point, possibly one that you don't want to hear. The human brain has an incredibly ability to filter out noise, especially constant noise that varies little in loudness, frequency, or aural characteristics. Unfortunately, to get that mechanism to work, you have to deliberately stop paying conscious attention to the sounds that are bothersome to you. So long as an individual sits down and consciously listens to see how much noise the fan is making, and then reminds onesself how disturbing it is, the brain will conclude that the individual doesn't WANT that sound filtered and will not do so. Actually the fact that the shack environment had become quite noisy with all the various fans, etc. would mostly become apparent at shutdown time. Then it was a clear realization that oh wow, they do all make a lot of noise... Adding one new piece of gear at a time it slowly accumulates, so the noise accumulation creeps up on you. And even if your brain can filter out much of the noise it is non the less fatiguing, not unlike a radios with noisy RF/IF/audio circuits. So when chasing weak signals high levels of audio noise in the shack environment is about as bad as noisy electronics, the weak signals will be buried... Undoubtedly some who are reading this are now thinking why not just use headphones... Well I really don't like headphones for one, and more importantly they make it hard to listen to 4 or 5 radios at one time. And a key to listening to that many radios at one time is having the ability to spatially orientate the various audio sources, headphones and audio combiners simply don't allow for that. In other words, so long as you listen for background noise, you'll hear some. One can end up chasing one's tail in this regard. I've already had a considerable degree of success as noted in my previous post. With each improvement the quieter sources of noise start reveal themselves, that alone represents success. It then becomes a practical matter of deciding just how much time, effort, and $'s does one want to take to chase the problem, and to what degree. But it was clear to me some years ago that attacking each piece of gear individually was going to be a lot more work than simply placing all the offending equipment in its own space so that I don't have to be sitting next to it anymore. It has been just these last few years that I've finally been in a position to pursue this approach. Duane N9DG ___ 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] Fan noise
A solution that suits the user is all that matters. I have space limitations and could not implement your solution if i wanted to. So for me...quiet fans. I made a poor choice of words when I said that the brain filtered the noise. Almost immediately after I sent that, I heard Dr. Lloyd Elfner (of blessed memory) clucking his tongue at me as he so often did in the lab. Actually, it does not do that at all. The brain processes the noise just as it does all sound but the consciousness disregards it. That really isn't right, either, but it is closer than the filter idea. A better explanation would probably bore people to tears. My real point was that, if an individual has normal hearing, no amount of acoustic treatment will totally deaden sound. Our chamber was a moderately good one that had an acoustic floor of 0dB. The best in the world go to about -10dB or so. In spaces that silent, one can hear the movement of one's clothing as one breathes and the sound of blood moving through the vessels. This totally freaks out some individuals. We kept a small portable radio in the chamber so that when subjects became too anxious we could generate some sound while we got them out. In other words, Duane, nothing that you or I can do will result in a 0dB sound floor, outside of buying a hugely expensive anechoic chamber for our radios. That's why continually listening, hearing, reducing, listening, hearing, reducing is, as I noted earlier, simply chasing one's tail. Nothing wrong with that, of course, if that is one's schtick but I'd rather ignore the (relatively) whitish noise of fans until my brain decides I'm not interested in listening to them and turns them off on my behalf. Granted that low signal levels can get lost in ambient sound but it is for that that God granted unto us the gain control. And headsets. Anyway, just another point of view. So long as we're having fun, what difference does it make? Bill On Wed, Dec 7, 2011 at 10:28 PM, Duane - N9DG n...@yahoo.com wrote: --- On Wed, 12/7/11, William H. Fite omni...@gmail.com wrote: Y'know, Duane, rather than going to all that trouble, you could just get some quiet fans. Noctua (a German company, I don't think they have much presence in the amateur radio market) makes low speed (~1200 rpm) fans in 80mm, 120mm, and 140mm sizes. They are about $25 each and they make less noise than any fan I have heard. snip I wonder how many of those fans I'd need to quiet down the furnace blowers ;).. The reality is that a lot of equipment you buy today will have fans in them. So rather than trying address each one individually piecemeal, I decided it was easier to make an environment to put them in, and then put myself in another quieter environment that is separate. Also consider that a fair amount of that new equipment you buy doesn't lend itself to fan mods, so that approach is rather limited in effectiveness. So I took an overall systems design view of how to address the noise rather than trying to do it with each piece of gear individually. Here's another point, possibly one that you don't want to hear. The human brain has an incredibly ability to filter out noise, especially constant noise that varies little in loudness, frequency, or aural characteristics. Unfortunately, to get that mechanism to work, you have to deliberately stop paying conscious attention to the sounds that are bothersome to you. So long as an individual sits down and consciously listens to see how much noise the fan is making, and then reminds onesself how disturbing it is, the brain will conclude that the individual doesn't WANT that sound filtered and will not do so. Actually the fact that the shack environment had become quite noisy with all the various fans, etc. would mostly become apparent at shutdown time. Then it was a clear realization that oh wow, they do all make a lot of noise... Adding one new piece of gear at a time it slowly accumulates, so the noise accumulation creeps up on you. And even if your brain can filter out much of the noise it is non the less fatiguing, not unlike a radios with noisy RF/IF/audio circuits. So when chasing weak signals high levels of audio noise in the shack environment is about as bad as noisy electronics, the weak signals will be buried... Undoubtedly some who are reading this are now thinking why not just use headphones... Well I really don't like headphones for one, and more importantly they make it hard to listen to 4 or 5 radios at one time. And a key to listening to that many radios at one time is having the ability to spatially orientate the various audio sources, headphones and audio combiners simply don't allow for that. In other words, so long as you listen for background noise, you'll hear some. One can end up chasing one's tail in this regard. I've already had a considerable degree of success as noted in my previous
Re: [Flexradio] Fan noise
Sounds kind of noisy to me (pun intended) Well I really don't like headphones for one, and more importantly they make it hard to listen to 4 or 5 radios at one time. And a key to listening to that many radios at one time is having the ability to spatially orientate the various audio sources, headphones and audio combiners simply don't allow for that. ___ 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] Fan Noise made Irrelevant
Fan Noise made irrelevant may sound like wishful thinking. But, mine effected me only on transmit since I use head phones. My Heil C5 mic picked up the sound of all fans and any other noise in the house. All seems well after I tinkered with the PA Gain Settings. My problem was that I had my mic gain turned up too high to try and get near 100 Watts out on SSB. I noticed that after calibrating, the PA the gain was set at 52.6 on 80 MTRs. When I finally moved it down to 50.0, the power out increased to 123 Watts. I then reduced my mic gain by 20 % (from 55 to 45) to get the SSB transmit Wattage to read just under 100 Watts. The net results was that my Heil C5 mic no longer picked up fan noise from the SDR1000, no Linear noise or even A/C noise as well. Contacts confirm that my 'shack noise' is totally gone and the audio is still outstanding. ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Fan Noise made Irrelevant
Gerald Capodieci wrote: Fan Noise made irrelevant may sound like wishful thinking. But, mine effected me only on transmit since I use head phones. My Heil C5 mic picked up the sound of all fans and any other noise in the house. All seems well after I tinkered with the PA Gain Settings. My problem was that I had my mic gain turned up too high to try and get near 100 Watts out on SSB. I noticed that after calibrating, the PA the gain was set at 52.6 on 80 MTRs. When I finally moved it down to 50.0, the power out increased to 123 Watts. I then reduced my mic gain by 20 % (from 55 to 45) to get the SSB transmit Wattage to read just under 100 Watts. The net results was that my Heil C5 mic no longer picked up fan noise from the SDR1000, no Linear noise or even A/C noise as well. Contacts confirm that my 'shack noise' is totally gone and the audio is still outstanding. ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ Your mike gain at 45 is still probably too high with a Heil C5. You should set it for 0dBm on voice peaks. I use a PR40 and my mic gain is set to 10. Also, enabling and setting the noise gate can eliminate most ambient shack noise. Chuck AA5J ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Fan noise reduction
Carl, Great suggestion regarding nibbling out the holes in the fan ingress. Huge reduction in fan noise. Mark An error does not become truth by reason of multiplied propagation, nor does truth become error because nobody sees it. -- Mohandas Gandhi -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Carl Vangsness Sent: Friday, January 04, 2008 11:59 AM To: KQ8RP Cc: FlexRadio Subject: Re: [Flexradio] SDR 1000 Fan Noise Have you tried opening up the fan opening in the cabinet? I used a nibbling tool to cut all the area containing the tiny little holes out and the noise went down dramatically. Next I will probably remove the filter - way too dense for the job. 73, Carl WCØV ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
