Help identifying this RFI
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I've uploaded some videos to YouTube that show the problem I'm having. This is
my first attempt at using YouTube and my first use of the video feature of my new Sony A6000, so bear with me. The link is here: https://www.youtube.com/channel/UCpl3gFMWg58kn7afp_K5c6A What these show is the noise that is wiping out my HF/6M operations. This stuff covers the complete spectrum from 160 to 6 meters. I'm in semi-rural location and have walked about a 1/2 mile in all directions with a Sony ICF-SW7600GR receiver, using the telescoping antenna and cannot pinpoint a location. My power company (co-op) is trying to be helpful, but the knowledgeable guy has left the company so I'm dealing with a rookie. Furthermore, in addition to the short-term, cyclic intermittency (5-10 minutes) evident in the videos, there can be longer term periods of quiet, which Murphy dictates occur when the power company guy is looking for noise. I'm hoping there is some expert here that can point me in the right direction. Wes N7WS ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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On Wed,7/1/2015 3:31 PM, Wes (N7WS) wrote:
> I'm hoping there is some expert here that can point me in the right > direction. It sure sounds like impulse noise, but other RFI professionals on the list may correct me. In general, impulse noise is best chased with an AM detector and the highest possible RX frequency. I have three tools that I can use this way. Most useful are a Kenwood TH-F6A talkie and a Kenwood VHF/UHF FM, both of which can be programmed for AM and have good sensitivity up to about 500 MHz. Both are programmed with presets of 160 MHz, 300 MHz, 400 MHz, and 526 MHz (the latter because that's the highest frequency before sensitivity falls off). To get close, I drive around listening to 160 MHz, then as the noise gets louder go to the higher frequencies. When I'm close enough to hear it on that 526 MHz memory, I get out of the car and switch to the talkie. With the talkie, a trick I learned from our Chicago fox-hunting guys. A talkie with a duck can be made directional by holding close against your chest, and sensitivity can be reduced by removing the duck. I once won a 2M fox hunt using only that talkie. The third tool is a Tecsun RX that tunes the AM aircraft band that's above the FM broadcast band. Obviously, the other tools are better, but I'm a "use the tools you have" sort of guy. :) 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Wes (N7WS)
This sounds like power-line noise
the trick to locating it is to work upwards in frequency as you close in on the source, I have had great success in locating power-line noise by closing in on it on 6M in my van then finding it on 2m as you get closer then finally on 70Cm For 2M/7Cm I use either an FT817 in AM mode or my VX7r Hand-held in AM with an arrow 2m/70Cm hand-held Yagi Use logic and method to close in on the source and don't make any assumptions about the faulty hardware on the power company side. For example some Hams have in the past (after locating the approx location) told the power company that it's a 'faulty transformer' Replacing the transformer has in some cases resolved the issue BUT only because the replacement process meant that all the loose hardware is now done up nice and tight.. By the time you get to 70Cm you will be very close to the source and can probably narrow it down to a pole with a small directional antenna Some may suggest hitting the suspect pole with a big hammer, Don't do that! It's dangerous (faulty hardware may result in the line falling ) and it's imprecise the ARRL have some very good info on location powerline noise and the causes which may help your CO-Op 'rooke' better understand the issues Here http://www.arrl.org/power-line And particularly here http://www.arrl.org/power-line-noise-mitigation-handbook-for-naval-and -other-receiving-sites The better job we do on narrowing down issues leads to better relations with the power company. In a few cases here In Ireland we have been the early warning system for things that were potentially dangerous faults and as a result we now have a good working relationship with the Irish power utility Hope this helps 73 Brendan EI6IZ On Wed, 2015-07-01 at 15:31 -0700, Wes (N7WS) wrote: > I've uploaded some videos to YouTube that show the problem I'm > having. This is > my first attempt at using YouTube and my first use of the video > feature of my > new Sony A6000, so bear with me. > > The link is here: > https://www.youtube.com/channel/UCpl3gFMWg58kn7afp_K5c6A > > What these show is the noise that is wiping out my HF/6M operations. > This stuff > covers the complete spectrum from 160 to 6 meters. I'm in semi-rural > location > and have walked about a 1/2 mile in all directions with a Sony ICF > -SW7600GR > receiver, using the telescoping antenna and cannot pinpoint a > location. My > power company (co-op) is trying to be helpful, but the knowledgeable > guy has > left the company so I'm dealing with a rookie. > > Furthermore, in addition to the short-term, cyclic intermittency (5 > -10 minutes) > evident in the videos, there can be longer term periods of quiet, > which Murphy > dictates occur when the power company guy is looking for noise. > > I'm hoping there is some expert here that can point me in the right > direction. > > Wes N7WS > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] 73 Brendan EI6IZ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Wes (N7WS)
Thanks for the many replies. I'll try to address all of them in one message.
First, I agree that this sounds like a powerline problem. I've seen many of them in my 57 years of hamming. What makes this different, and the reason for my call for advice, is the periodic nature of the problem. Actually, the problem is nearly continuous but is interrupted periodically. When I first started paying attention to this, I saw that the quiet periods were spaced about six minutes apart. This led me to think there is a timer involved. Grow lamps sprung to mind, since the "wild west" nature of this area makes that a distinct possibility. That said, my understanding is that these are on for much longer times. Regrettably, it's also our time for thunderstorms so my antennas are often disconnected so a good timeline is problematic. I do believe after some more listening that the periodicity is less uniform than previously believed. Maybe it's totally random. Some more data points: 1) I have opened the main breaker to my house and run the K3/Laptop on battery power with no change. 2) To the best of my knowledge there are no electric fences here. 3) My immediate neighbor to the north happens to be a welder, but he's not the culprit. He's put his wife to work and he plays. 4) The power feed to my house is underground. The nearest power pole is ~450 feet away from my tower to my WSW. The power line runs N and S from that point with another line intersecting at that pole and running to the west. 5) To my north there are two E-W feeder lines tapped into the N-S line. 6) One supplies my immediate neighbor to the north (the welder) via a pole mounted transformer. This is 350 feet due north of my tower. I've strummed the guy wires to these poles without noting any change. 7) A second 1000 ft E-W line feeds another transformer that is 850 feet NE of me. This transformer appears to have some oil leakage, but shaking the H out of it via the guy wires makes no change. The power company guys say it's OK. 8) Although we are entering our Arizona summer "rainy season", to date I've recorded a couple of hundredths of an inch. The noise issue predates this. Our power poles never swell, they just get skinnier and skinner. Years ago the power company tried to fix some noise problems I was having by replacing the plain staples that attach the ground wires to the poles with barbed staples that wouldn't (so they thought) pull out. Furthermore, the staples were copper plated and the ground wires are aluminum. Eventually, the copper went away and now the staples are rusted steel. 9) My "sniffing receiver" is limited to 30 MHz but I have a lead to someone with more appropriate equipment, as well as expertise. 10) The Elecrafter's will understand this, I have a new K3S almost ready for delivery (credit card's been charged) it would be nice to be able to hear something on it. On 7/1/2015 3:31 PM, Wes (N7WS) wrote: [snip] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Ref #7. If you are 100% sure the leaking pole pig is not the problem, then
search elsewhere. At a club station in Illinois, the pole pig was intermittent. Power company did not believe it, as it was intermittent. One evening during club meeting (alcohol was involved) a 30-06 made the pole peg 100% defective. Power company replaced it, and the noise was gone ever since. Jim W6AIM -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of Wes (N7WS) Sent: Wednesday, July 1, 2015 7:41 PM To: [hidden email]; SADXA Subject: Re: [Elecraft] Help identifying this RFI Thanks for the many replies. I'll try to address all of them in one message. First, I agree that this sounds like a powerline problem. I've seen many of them in my 57 years of hamming. What makes this different, and the reason for my call for advice, is the periodic nature of the problem. Actually, the problem is nearly continuous but is interrupted periodically. When I first started paying attention to this, I saw that the quiet periods were spaced about six minutes apart. This led me to think there is a timer involved. Grow lamps sprung to mind, since the "wild west" nature of this area makes that a distinct possibility. That said, my understanding is that these are on for much longer times. Regrettably, it's also our time for thunderstorms so my antennas are often disconnected so a good timeline is problematic. I do believe after some more listening that the periodicity is less uniform than previously believed. Maybe it's totally random. Some more data points: 1) I have opened the main breaker to my house and run the K3/Laptop on battery power with no change. 2) To the best of my knowledge there are no electric fences here. 3) My immediate neighbor to the north happens to be a welder, but he's not the culprit. He's put his wife to work and he plays. 4) The power feed to my house is underground. The nearest power pole is ~450 feet away from my tower to my WSW. The power line runs N and S from that point with another line intersecting at that pole and running to the west. 5) To my north there are two E-W feeder lines tapped into the N-S line. 6) One supplies my immediate neighbor to the north (the welder) via a pole mounted transformer. This is 350 feet due north of my tower. I've strummed the guy wires to these poles without noting any change. 7) A second 1000 ft E-W line feeds another transformer that is 850 feet NE of me. This transformer appears to have some oil leakage, but shaking the H out of it via the guy wires makes no change. The power company guys say it's OK. 8) Although we are entering our Arizona summer "rainy season", to date I've recorded a couple of hundredths of an inch. The noise issue predates this. Our power poles never swell, they just get skinnier and skinner. Years ago the power company tried to fix some noise problems I was having by replacing the plain staples that attach the ground wires to the poles with barbed staples that wouldn't (so they thought) pull out. Furthermore, the staples were copper plated and the ground wires are aluminum. Eventually, the copper went away and now the staples are rusted steel. 9) My "sniffing receiver" is limited to 30 MHz but I have a lead to someone with more appropriate equipment, as well as expertise. 10) The Elecrafter's will understand this, I have a new K3S almost ready for delivery (credit card's been charged) it would be nice to be able to hear something on it. On 7/1/2015 3:31 PM, Wes (N7WS) wrote: [snip] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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On Wed,7/1/2015 9:19 PM, jim wrote:
> One evening during club meeting (alcohol was involved) a 30-06 made the pole > peg 100% defective. Power company replaced it, and the noise was gone ever > since. I had a similar experience at an AT&T Long Lines site in NorCal at which I had an HF station around 2004. A major wildland fire came through (started 7 days and 20 miles from our QTH) and took out about 10 poles on the feed to us. After they replaced those poles, it was a lot quieter. I have a solid alibi -- I was in Chicago at the time. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Jim Bolit
Wes, good luck with that.
One more story that may be of benefit. But the summary is that such noise may be caused by a source on one of may drops from this branch circuit you're on. The source may even be on another distribution circuit, though I don't think this is likely. I had a timed problem like yours. Every day at 5PM +/- a few minutes, S9+20 dB arc noise would show up on 40 and 80m. Since I had a MARS net above 80m, I couldn't really do much with that noise level present. I scheduled one of the SCE (Edison) power quality staff to come out and see if it was something SCE could fix. Skipping several of his visits, he found an old 240 - 480 transformer that was on a daily timer. There *had* been a pump on its output but that was long gone and the output was arcing over at the secondary cabling. There is just enough ex-citrus land around here to have a few ages-old pieces of junk electrical equipment like that. The SCE guy disconnected the primary and the problem went away forever. In a staight line, this transformer problem was almost 1/2 mile away, and not even on the same distribution circuit we're on here. 73, matt W6NIA On Wed, 1 Jul 2015 21:19:05 -0700, you wrote: >Ref #7. If you are 100% sure the leaking pole pig is not the problem, then >search elsewhere. > >At a club station in Illinois, the pole pig was intermittent. Power company >did not believe it, as it was intermittent. > >One evening during club meeting (alcohol was involved) a 30-06 made the pole >peg 100% defective. Power company replaced it, and the noise was gone ever >since. > >Jim >W6AIM > > > >-----Original Message----- >From: Elecraft [mailto:[hidden email]] On Behalf Of Wes >(N7WS) >Sent: Wednesday, July 1, 2015 7:41 PM >To: [hidden email]; SADXA >Subject: Re: [Elecraft] Help identifying this RFI > >Thanks for the many replies. I'll try to address all of them in one >message. > >First, I agree that this sounds like a powerline problem. I've seen many of >them in my 57 years of hamming. What makes this different, and the reason >for my call for advice, is the periodic nature of the problem. Actually, >the problem is nearly continuous but is interrupted periodically. When I >first started paying attention to this, I saw that the quiet periods were >spaced about six minutes apart. This led me to think there is a timer >involved. Grow lamps sprung to mind, since the "wild west" nature of this >area makes that a distinct possibility. That said, my understanding is that >these are on for much longer times. > >Regrettably, it's also our time for thunderstorms so my antennas are often >disconnected so a good timeline is problematic. I do believe after some >more listening that the periodicity is less uniform than previously >believed. Maybe it's totally random. > >Some more data points: > >1) I have opened the main breaker to my house and run the K3/Laptop on >battery power with no change. > >2) To the best of my knowledge there are no electric fences here. > >3) My immediate neighbor to the north happens to be a welder, but he's not >the culprit. He's put his wife to work and he plays. > >4) The power feed to my house is underground. The nearest power pole is >~450 feet away from my tower to my WSW. The power line runs N and S from >that point with another line intersecting at that pole and running to the >west. > >5) To my north there are two E-W feeder lines tapped into the N-S line. > >6) One supplies my immediate neighbor to the north (the welder) via a pole >mounted transformer. This is 350 feet due north of my tower. I've strummed >the guy wires to these poles without noting any change. > >7) A second 1000 ft E-W line feeds another transformer that is 850 feet NE >of me. This transformer appears to have some oil leakage, but shaking the H >out of it via the guy wires makes no change. The power company guys say >it's OK. > >8) Although we are entering our Arizona summer "rainy season", to date I've >recorded a couple of hundredths of an inch. The noise issue predates this. >Our power poles never swell, they just get skinnier and skinner. Years ago >the power company tried to fix some noise problems I was having by replacing >the plain staples that attach the ground wires to the poles with barbed >staples that wouldn't (so they thought) pull out. Furthermore, the staples >were copper plated and the ground wires are aluminum. Eventually, the >copper went away and now the staples are rusted steel. > >9) My "sniffing receiver" is limited to 30 MHz but I have a lead to someone >with more appropriate equipment, as well as expertise. > >10) The Elecrafter's will understand this, I have a new K3S almost ready >for delivery (credit card's been charged) it would be nice to be able to >hear something on it. > > >On 7/1/2015 3:31 PM, Wes (N7WS) wrote: >[snip] >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:[hidden email] > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html Message >delivered to [hidden email] > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:[hidden email] > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to [hidden email] -- "Always store beer in a dark place." -R. Heinlein ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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On Thu,7/2/2015 7:20 AM, Matt Zilmer wrote:
> In a staight line, this > transformer problem was almost 1/2 mile away, and not even on the same > distribution circuit we're on here. Remember that power lines RADIATE. Although I have no scientific evidence to back it up, I suspect that most noise we hear from power lines is the result of radiation of the noise current -- that is, the power wiring near the noise source acts as a transmitting antenna. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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That appears to be exactly what was happening. I assumed that
conducted RFI is pretty well snubbed by whatever distribution transformers were in between. 73, matt W6NIA On Thu, 2 Jul 2015 09:34:28 -0700, you wrote: >On Thu,7/2/2015 7:20 AM, Matt Zilmer wrote: >> In a staight line, this >> transformer problem was almost 1/2 mile away, and not even on the same >> distribution circuit we're on here. > >Remember that power lines RADIATE. Although I have no scientific >evidence to back it up, I suspect that most noise we hear from power >lines is the result of radiation of the noise current -- that is, the >power wiring near the noise source acts as a transmitting antenna. > >73, Jim K9YC >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:[hidden email] > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to [hidden email] -- "Always store beer in a dark place." -R. Heinlein ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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An arching transformer is just a spark gap transmitter with a super long
antenna attached. Much lesser setups were used decades ago and provided global communications. Matt Zilmer wrote: > That appears to be exactly what was happening. I assumed that > conducted RFI is pretty well snubbed by whatever distribution > transformers were in between. > > 73, > matt > W6NIA > > On Thu, 2 Jul 2015 09:34:28 -0700, you wrote: > >> On Thu,7/2/2015 7:20 AM, Matt Zilmer wrote: >>> In a staight line, this >>> transformer problem was almost 1/2 mile away, and not even on the same >>> distribution circuit we're on here. >> Remember that power lines RADIATE. Although I have no scientific >> evidence to back it up, I suspect that most noise we hear from power >> lines is the result of radiation of the noise current -- that is, the >> power wiring near the noise source acts as a transmitting antenna. >> >> 73, Jim K9YC >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] > Matt Zilmer, W6NIA > -- > "Always store beer in a dark place." -R. Heinlein > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Wes (N7WS)
I had a very similar problem, also (very nearly) S9. I had narrowed down
the general area, and actually found it at night. I could visibly see the arcing from an insulator. I called the power company with the pole number, and they fixed it 2 weeks later. Try searching at night using binoculars, looking at every piece of hardware on the poles, see if you can visibly identify the source. While I'm no expert, your youtube videos sure sound like power line arcing to me. Chris K1AY On Wed, Jul 1, 2015 at 10:40 PM, Wes (N7WS) <[hidden email]> wrote: > Thanks for the many replies. I'll try to address all of them in one > message. > > First, I agree that this sounds like a powerline problem. I've seen many > of them in my 57 years of hamming. What makes this different, and the > reason for my call for advice, is the periodic nature of the problem. > Actually, the problem is nearly continuous but is interrupted > periodically. When I first started paying attention to this, I saw that > the quiet periods were spaced about six minutes apart. This led me to > think there is a timer involved. Grow lamps sprung to mind, since the "wild > west" nature of this area makes that a distinct possibility. That said, my > understanding is that these are on for much longer times. > > Regrettably, it's also our time for thunderstorms so my antennas are often > disconnected so a good timeline is problematic. I do believe after some > more listening that the periodicity is less uniform than previously > believed. Maybe it's totally random. > > Some more data points: > > 1) I have opened the main breaker to my house and run the K3/Laptop on > battery power with no change. > > 2) To the best of my knowledge there are no electric fences here. > > 3) My immediate neighbor to the north happens to be a welder, but he's > not the culprit. He's put his wife to work and he plays. > > 4) The power feed to my house is underground. The nearest power pole is > ~450 feet away from my tower to my WSW. The power line runs N and S from > that point with another line intersecting at that pole and running to the > west. > > 5) To my north there are two E-W feeder lines tapped into the N-S line. > > 6) One supplies my immediate neighbor to the north (the welder) via a > pole mounted transformer. This is 350 feet due north of my tower. I've > strummed the guy wires to these poles without noting any change. > > 7) A second 1000 ft E-W line feeds another transformer that is 850 feet > NE of me. This transformer appears to have some oil leakage, but shaking > the H out of it via the guy wires makes no change. The power company guys > say it's OK. > > 8) Although we are entering our Arizona summer "rainy season", to date > I've recorded a couple of hundredths of an inch. The noise issue predates > this. Our power poles never swell, they just get skinnier and skinner. > Years ago the power company tried to fix some noise problems I was having > by replacing the plain staples that attach the ground wires to the poles > with barbed staples that wouldn't (so they thought) pull out. Furthermore, > the staples were copper plated and the ground wires are aluminum. > Eventually, the copper went away and now the staples are rusted steel. > > 9) My "sniffing receiver" is limited to 30 MHz but I have a lead to > someone with more appropriate equipment, as well as expertise. > > 10) The Elecrafter's will understand this, I have a new K3S almost ready > for delivery (credit card's been charged) it would be nice to be able to > hear something on it. > > > On 7/1/2015 3:31 PM, Wes (N7WS) wrote: > [snip] > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > -- Life is like Linux - it never stands still. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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